Which of the following is the correct graph of the compound inequality 4p + 1 > −15 or 6p + 3 < 45?

Answers

Answer 1

Answer:

4p + 1 > −15 or 6p + 3 < 45

has solution any number.

The graph looks like this

<~~~~~~~~~~~~~~~~~~~~~~~~~~~>

     ---------(-4)---------(7)-------------

The shading is everywhere from left to right.

Step-by-step explanation:

Let's solve this first:

4p+1>-15

Subtract 1 on both sides:

4p>-16

Divide both sides by 4:

p>-4

or

6p+3<45

Subtract 3 on both sides:

6p<42

Divide both sides by 6:

p<7

So our solution is p>-4 or p<7

So let's graph that

~~~~~~~~~~~~~~~~~~~~~~~~~~~~O

                         O~~~~~~~~~~~~~~~~~~~~~~~~~~~~ p>-4

---------------------(-4)---------------------(7)--------------------

or is a key word! or means wherever the shading exist for either is a solution.

So this shading is everywhere.

The answer is all real numbers.

The final graph looks like this:

<~~~~~~~~~~~~~~~~~~~~~~~~~~~>

     ---------(-4)---------(7)-------------

The shading is everywhere from left to right.

Answer 2

Answer:

Solution is (-∞,∞)

Step-by-step explanation:

[tex]4p + 1 > -15 \ or \ 6p + 3 < 45[/tex]

Solve each inequality separately

[tex]4p + 1 > -15[/tex]

Subtract 1 from both sides

[tex]4p> -16[/tex]

Divide both sides by 4

[tex]p> -4[/tex]

Solve the second inequality

[tex]6p + 3 < 45[/tex]

Subtract 3 from both sides

[tex]6p< 42[/tex]

Divide both sides by 6

[tex]p< 7[/tex]

[tex]p> -4 \ or \p< 7[/tex]

Solution is (-∞,∞)

Which Of The Following Is The Correct Graph Of The Compound Inequality 4p + 1 &gt; 15 Or 6p + 3 &lt;

Related Questions

28. A number has 4 and 5 as factors. What other numbers must be factors? Why? What is the smallest number
this number could be?​

Answers

Answer:

2, 10.

Smallest number = 20.

Step-by-step explanation:

It must have 2 as a factor because 4 is a factor,  and 2 is a factor of 4.

Also 4 *5 = 20 so 10 must be a factor.

The smallest number possible is 20.

Final answer:

The smallest number that has both 4 and 5 as factors is 20. In addition to 4 and 5, this number also has 1, 2, 10, and 20 as factors.

Explanation:

When a number has 4 and 5 as factors, this means that it must be a multiple of both 4 and 5. As a result, the smallest number this could be would be 20 (since 4*5 equals 20). Moreover, that given number will also have 1, 2, and 10 as factors. This is because 1 is a factor of every number, 2 is a factor of every even number, and 10 is a result of 2*5.

The number will also be divisible by 20 itself, because any number must be divisible by itself. This basic fact is often forgotten but very important.

To summarize, the factors of the smallest possible number would be 1, 2, 4, 5, 10, and 20.

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which system of inequalities is shown​

Answers

I believe it’s A y 2

Answer:

Yea, it is A

Step-by-step explanation:

Let f(x)=5−8x+15x^2. Calculate the following values:

f(a)= _____


f(a+h)= ____


f(a+h)−f(a)/h= ____ for h≠0

Answers

Answer:

[tex]f(a)=5-8a+15a^2[/tex]

[tex]f(a+h)=5-8a-8h+15a^2+30ah+15h^2[/tex]

[tex]\frac{f(a+h)-f(a)}{h}=-8+30a+15h[/tex]

Step-by-step explanation:

We are given [tex]f(x)=5-8x+15x^2[/tex].

We want to find [tex]f(a)[/tex] so we just replace the x there with a giving us:

[tex]f(a)=5-8a+15a^2[/tex].

We want to find [tex]f(a+h)[/tex] so we just replace x with (a+h) now giving us:

[tex]f(a+h)=5-8(a+h)+15(a+h)^2[/tex].

We will need to distribute and multiply things out here for later use so let's go ahead and do that:

[tex]f(a+h)=5-8(a+h)+15(a+h)^2[/tex]

[tex]f(a+h)=5-8a-8h+15(a+h)(a+h)[/tex]

[tex]f(a+h)=5-8a-8h+15(a^2+2ah+h^2)[/tex]

[tex]f(a+h)=5-8a-8h+15a^2+30ah+15h^2[/tex]

We want to find [tex]\frac{f(a+h)-f(a)}{h}[/tex] where h is not 0.

This requires the parts we found above:

[tex]\frac{f(a+h)-f(a)}{h}[/tex]

[tex]\frac{(5-8a-8h+15a^2+30ah+15h^2)-(5-8a+15a^2)}{h}[/tex]

There are some thing that will zero out (cancel out) in the numerator.

You have 5-8a+15a^2 in both parenthesis and you are subtracting so that part zero's out so you have this now:

[tex]\frac{-8h+30ah+15h^2}{h}[/tex]

Now you can divide h from top and bottom giving you:

[tex]\frac{-8+30a+15h}{1}[/tex]

[tex]-8+30a+15h[/tex]

What is the product of the rational expressions below? x-8/x+11*x+8/x-11

Answers

Answer:

Problem: [tex]\frac{x-8}{x+11} \cdot \frac{x+8}{x-11}[/tex]

Answer: [tex]\frac{x^2-64}{x^2-121}[/tex]

Step-by-step explanation:

[tex]\frac{x-8}{x+11} \cdot \frac{x+8}{x-11}[/tex]

Writing as one fraction:

[tex]\frac{(x-8)(x+8)}{(x+11)(x-11)}[/tex]

Now before we continue, notice both of your bottom and top are in the form of (a-b)(a+b) or (a+b)(a-b) which is the same format.

That is, we are multiplying conjugates on top and bottom.

When multiplying conjugates, all you have to do it first and last.

For example:

[tex](a-b)(a+b)=a^2-b^2[/tex].

So your problem becomes this after the multiplication of conjugates:

[tex]\frac{x^2-64}{x^2-121}[/tex]

Answer:

[tex] \frac { ( x - 8 ) ( x + 8 ) } { ( x + 1 1 ) ( x - 1 1 ) } [/tex]

Step-by-step explanation:

We are to find the product of the rational expression below:

[tex] \frac { x - 8 } { x + 1 1 } \times \frac { x + 8 } { x - 1 1 } [/tex]

We are to multiply these terms by taking the LCM to get:

[tex] \frac { ( x - 8 ) ( x + 8 ) } { ( x + 1 1 ) ( x - 1 1 ) } [/tex]

Since the signs of all the terms are different so we cannot add them up.

What is the area of the polygon given below

Answers

Answer:

B. 271 square units

Step-by-step explanation:

The area is the sum of 3 rectangles areas

step 1         12 * 19 = 228

step 2       3 * 3   = 9

step 3      2 * 17 = 34

Now, we add all the answers we got to get the area.

= 228 + 34 + 9 =   271 square units

 

The area of the polygon is:

A = 2 × 12 + 14(12+2) + 3(12 + 2 + 3)

A = 2 × 12 + 14 × 14 + 3 × 17

A = 24 + 196 + 51

A = 220 + 51

A = 271 cm²

These cones are similar. Find the surface
area of the smaller cone. Round to the
nearest tenth.​

Answers

Answer:

17.8 cm²

Step-by-step explanation:

Given 2 similar figures with linear ratio = a : b, then

ratio of areas = a² : b²

For the 2 similar cones

ratio of radii = 2 : 5, hence

ratio of areas = 2² : 5² = 4 : 25

Let x be the area of the smaller cone then by proportion

[tex]\frac{x}{4}[/tex] = [tex]\frac{111}{25}[/tex] ( cross- multiply )

25x = 444 ( divide both sides by 25 )

x = 17.76

Hence area of smaller cone = 17.8 cm² ( to the nearest tenth )

17.8 cm²

What does the word surface area mean?

The total area of the surface of a 3-dimensional figure. The surface area of the solid object is the measure of the total area that the surface of the object occupies.

What are examples of surface area?

we must to course choose 3 dissimilar faces to capture length l, width w, or height h:

SA = 2 ( lw + lh + hw)SA = 2 (21' x 17' + 21' x 19' + 19' x 17')SA = 2 (357 ft^2 + 399 ft^2 + 323 ft^2)SA = 2 (1079 ft^2)SA = 2158 ft^2

Given 2 similar figures with linear ratio = a: b, then

ratio of areas = a² : b²

For the 2 similar cones

ratio of radii = 2 : 5, hence

ratio of areas = 2² : 5² = 4 : 25

Let x be the area of the smaller cone then by proportion

[tex]\frac{x}{4} =\frac{111}{25}[/tex]

=  ( cross- multiply )

25x = 444 ( divide both sides by 25 )

x = 17.76

therefore an area of smaller cone = 17.8 cm² ( to nearest tenth )

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In the figure Triangle BAT is congruent to Triangle CAT. Which statement is true by CPCTC?

Answers

Answer:

BT is Congruent to CT

Step-by-step explanation:

Since these two triangles are said to be congruent, that means that their side lengths and angle measures are congruent as well. So, since BT corresponds to CT in the diagram, they must be congruent.

Answer:

BT≅CT

Step-by-step explanation:

If two triangles are congruent it means that they have the same size and shape, or that they mirror each other. Since the side, AT, is common to both triangles, the congruent triangles are mirrored in this case, which means that side CT in ∠CAT corresponds to side BT in ∠BAT.

HELPme

A square is always which of these?

circle

triangle

trapezoid

rectangle

2.

A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions?

47.1 cm

94.2 cm

188.4 cm

376.8 cm

3.

The diameter of a circular garden is 22 feet. What is the approximate area of the garden?

50 square feet

100 square feet

254.34 square feet

379.94 square feet

4.

What are the solutions to the equation y2 – 1 = 15?

–5 and 5

–4 and 4

–7 and 7

–9 and 9

Answers

Answer:

1. Rectangle

2. 376.8 cm

3. 379.94 square feet

4. –4 and 4

Step-by-step explanation:

A square is always a rectangle.

If a wheel has a radius of 15 cm, it would travel approximately 376.8 cm per 4 revolutions.

If the diameter of a circular garden is 22 feet, the approximate area of the garden is 379.94 square feet.

The solutions to the equation y2 – 1 = 15 is –4 and 4.

rectangle

376.8 cm

379.94 square feet

–4 and 4

PLZ HELP!!!Solve the equation, and enter the solutions from least to greatest. If there is only one solution, enter “n.a.” for the second solution.

Answers

Answer:

other answer is wrong this is the correct answer 100%

Step-by-step explanation:

x= 1

and

x= "n.a."

What is the 100th term of the sequence 7, 4, 1, -2 ...

Answers

The sequence is arithmetic as it goes down 3 every time

Arithmetic nth term formula is an=a1+d(n-1)

an=7-3(n-1)
an=7-3n+3
an=-3n+10

To find the 100th term substitute n for 100
a100=-3(100)+10
a100=-300+10
a100=-290

The 100th term is -290

Final answer:

The 100th term of the arithmetic sequence is found using the formula an = a1 + (n-1)d. In this sequence, the 100th term is -290.

Explanation:

The question asks for the 100th term of an arithmetic sequence with a common difference. The given sequence is 7, 4, 1, -2, ... which shows a constant decrease of 3 between consecutive terms, hence it's an arithmetic sequence with a common difference (-3). To find the 100th term (a100) of the sequence, we can use the formula for the nth term of an arithmetic sequence: an = a1 + (n-1)d, where a1 is the first term, and d is the common difference.

Plugging in the values, we get:

The first term (a1): 7The common difference (d): -3The term number (n): 100

We calculate the 100th term as follows:

a100 = 7 + (100 - 1)(-3)

a100 = 7 - 297

a100 = -290

Therefore, the 100th term of the sequence is -290.

A girl’s club held a fundraiser last year and raised $600 for the local soup kitchen. This year they raised $960. What is the percent change in the total amount raised by the girl’s club?

Answers

Answer:

60%

Step-by-step explanation:

To find percent change you take the new value, subtract it from the old value and then put that number over the original value. In this case it would be 960-600=360, 360/600=36/60=6/10 or 60 percent.

Answer:

D

Step-by-step explanation:

Which values are solutions to the inequality below? Check all that apply.
√x>9

a. -81
b. -3
c. 100
d. 27
e. 3
f. 81

Answers

Answer:

c.

Step-by-step explanation:

That is the only answer choice that makes the most sense.

±10 = √100; in this case, they want the non-negative value, so it is 10.

Answer: c. 100

Step-by-step explanation: √-81 and √-3 are not possibly unless complex numbers applied

√100 = 10 > 9 valid answer

√27 = 5.196 < 9 invalid answer

√3 = 1.732 < 9 invalid answer

√81 = 9 ≡ 9 invalid answer

Only c is the answer.

Hope it helped!

Solve the system of equations.
y= 2x + 4
y = x2 + x - 2​

Answers

Answer:

A.

Step-by-step explanation:

[tex]y=2x+4[/tex]

[tex]y=x^2+x-2[/tex]

Both equations are solved for y so I'm just going to substitute

the 1st  y  (the 2x+4) into the second equation's y.

[tex]2x+4=x^2+x-2[/tex]

I'm going to get everything on one side so I have 0=ax^2+bx+c.

Subtract 2x and subtract 4 on both sides:

[tex]0=x^2-x-6[/tex]

Since the coefficient of x^2 is 1, all we have to do is find two numbers that multiply to be -6 and add up to be -1.

These numbers are -3 and 2.

So the factored form of our equation is:

[tex]0=(x-3)(x+2)[/tex]

This means we have x-3=0 or x+2=0.

x-3=0

Add 3 on both sides:

x=3

x+2=0

Subtract 2 on both sides:

x=-2

So now we need to find y. I'm going to choose to use the easier equation:

y=2x+4.

If x=3, then y=2(3)+4=6+4=10.  The ordered pair (3,10) is a solution.

If x=-2, then y=2(-2)+4=-4+4=0.  The orded pair (-2,0) is a solution.

What is the volume of the right rectangular prism?

21 cm3
42 cm3
120 cm3
240 cm3

Answers

Answer: Last Option

[tex]V=240\ cm^3[/tex]

Step-by-step explanation:

The formula for calculating the volume of a prism is:

[tex]V = lwh[/tex]

Where l is the length, w is the width and h is the length.

In this case we know that:

[tex]l=10\ cm\\w=3\ cm\\h=8\ cm[/tex]

Therefore:

[tex]V =10*3*8[/tex]

[tex]V=240\ cm^3[/tex]

Answer: [tex]240\ cm^3[/tex]

Step-by-step explanation:

The volume of a right rectangular prism is given by :-

[tex]\text{Volume}=lwh[/tex] , where l is length , w is width and h is the height of the right rectangular prism.

In the given picture , we have the length of the prism = 10 cm

Width of the prism = 3 cm

Height of the prism = 8 cm

Then , the volume of a right rectangular prism will be :-

[tex]\text{Volume}=10\times3\times8\\\\\Rightarrow\ \text{Volume}=240\ cm^3[/tex]

What is the value of y in the formula shown when x=4/5
Y=4/x

Answers

Answer:

5 = y

Step-by-step explanation:

As discussed in my video on my channel [Username: MATHEMATICS WIZARD], whenever you are dividing mixed numbers, fractions, etcetera, you multiply the first term by the divisor's multiplicative inverse [reciprocal].

Ex: 2 ÷ 1⁄11 → 2 × 11

I hope this helps, and as always, I am joyous to assist anytime.

what is the simplified version of the fraction below? 24/30

Answers

Answer:

4/5

Step-by-step explanation:

The prime factorization of 24 is 2*2*2*3.

There prime factorization of 30 is 2*3*5.

They have 2*3 in common.

2*3=6.

So we can divide numerator (top) and denominator (bottom) by 6 and this will reduce the fraction into simplest form.

[tex]\frac{24}{30}=\frac{24 \div 6}{30 \div 6}=\frac{4}{5}[/tex]

The simplified version of the fraction 24/30 is 4/5

What is fraction ?

Fraction is a mathematical number by which we can describe a part of a whole item.

A fraction has two parts, the top part is called numerator & the bottom part is called denominator.

Example : [tex]\frac{5}{7}[/tex] , where 5 is the numerator & 7 is the denominator.

What is the required fraction ?

The given fraction is 24/30

The prime factorisation of 24 gives 2×2×2×3 , i.e. 2×2×(2×3)

The prime factorisation of 30 gives 2×3×5 , i.e. 5×(2×3)

Common in both 24 & 30 is 2×3, i.e. 6

So, we have to divide numerator & denominator of the given fraction by 6 to get the simplified form.

Hence, 24/30 = (24/6)/(30/6) = 4/5

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what is the total surface area of the rectangular pyramid below

Answers

Answer:

S.A. = 225 ft²

Step-by-step explanation:

We have

the rectangle 12ft × 6ft

two triangles with the base b = 12ft and the height h = 8ft

two triangles with the base b = 6ft and the height h = 9.5ft.

The formula of an area of a rectangle l × w:

[tex]A=lw[/tex]

Substitute:

[tex]A_1=(12)(6)=72\ dt^2[/tex]

The formula of an area of a triangle:

[tex]A=\dfrac{bh}{2}[/tex]

Substitute:

[tex]A_2=\dfrac{(12)(8)}{2}=48\ ft^2[/tex]

[tex]A_3=\dfrac{(6)(9.5)}{2}=28.5\ ft^2[/tex]

The Surface Area:

[tex]S.A.=A_1+2A_2+2A_3[/tex]

Substitute:

[tex]S.A.=72+2(48)+2(28.5)=225\ ft^2[/tex]

Answer:

Total surface area of the pyramid = 225 ft²

Step-by-step explanation:

Total surface area of the given pyramid is defined by  

(Area of rectangular base) + 2(area of two triangular sides with height 8 ft and base 12 ft) + 2(area of two triangles with height 9.5 ft and base 6 ft)

Total surface area = (12×6) + 2[[tex]\frac{1}{2}\times(h)(b)[/tex]]+2[[tex]\frac{1}{2}\times(h')(b')[/tex]]

= 72 + 2[[tex]\frac{1}{2}\times(8)(12)[/tex]]+2[[tex]\frac{1}{2}\times(9.5)(6)[/tex]]

= 72 + 96 + 57

= 225 ft²

Therefore, total surface area of the pyramid is 225 ft²

logarithmic question please help!!

Answers

[tex]\log_ab-\log_ac=\log_a\dfrac{b}{c}\\\\\log_315-\log_310=\log_3\dfrac{15}{10}=\boxed{\log_3\dfrac{3}{2}}[/tex]

Answer:

B.

Step-by-step explanation:

They have the same base so use the quotient rule (since they have a minus sign in between).

We are using this rule: [tex] log_a(b)-log_a(c)=log_a(\frac{b}{c})[/tex]

So we have  [tex] log_3(15)-log_3(10)=log_3(\frac{15}{10})[/tex]

We can reduce the inside fraction... 15/10=3/2

So the answer is B.

What is the diameter of a circle with a circumference of 18.84956?
a. 2 units
c. 6 units
b. 3 units
d. 9 units
Please select the best answer from the choices provided

Answers

Answer:

c. 6 units

Step-by-step explanation:

The diameter of a circle with a circumference of 18.84956 is 6 units.

Use the formula: C=2πr

d=C

π=18.85

π≈6

Two sides of a triangle measure 5in. And 12in. Which could be the length of the third side ?

3in.
6in.
10in.
18in.

Answers

Answer:

10

Step-by-step explanation:

I am pretty sure this is the answer because, the two sides added have to be greater than the longest side.

Help me on this math question please

Answers

Answer:

Exponent.

[tex]\Huge \boxed{25}[/tex]

Step-by-step explanation:

2 is should be exponent.

5 is the base.

In the expression 5², the 2 represents the exponent.

[tex]\displaystyle 5^2=5\times5=25[/tex]

Exponent, and 25 is the correct answer.

The 2 in [tex]5^{2}[/tex] would represent the exponent.

An exponent is the number of times a base is multiplied by itself. The base on the other hand is the number that is being raised to a certain power.

Image is provided

The length of a rectangle is four times it’s width. If the area of the rectangle is 324 ft.², find its perimeter

Answers

Answer:

90 yards

Step-by-step explanation:

If the length of a rectangle is four times it’s width and the area of the rectangle is 324 ft.², its perimeter is 90 yards.

Formula: Length = Area / Width

P = 2(4x) + 2(x)

P = 72 + 18

Therefore, P = 90 yards

Its perimeter if 90 ft.

What is the formula of rectangle's area ?

If length of the rectangle be l & width of the rectangle be w.

Then Area of the rectangle (A) = Length × Width

                                                   = (l × w) sq. unit

What is the formula of rectangle's perimeter ?

If length of the rectangle be l & width of the rectangle be w.

Then, Perimeter of the rectangle = 2×(l+w) unit

What is the required perimeter ?

Given, Area of the rectangle = 324 sq. ft

Let, Width (w) = x unit

So, Length (l) = 4 times it's width = 4x unit

Area = l × w = (4x)(x)

⇒ 324 = 4x²

⇒ x² = 324/4

⇒ x² = 81

⇒ x = [tex]\sqrt{}[/tex]81

⇒ x = 9  (neglecting negative value)

So, it's width = 9 ft.

Then, its length = (4×9) ft. = 36 ft.

Perimeter =  2×(l+w) =  2×(36+9) ft. =  (2×45) ft. = 90ft.

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You surveyed 112 students and found out that 14 went to the movies last week-
end. Using this information and knowing there are 2600 students in the school,
predict how many students went to the movie last week-end.
a) 336
b) 1568
c) 325
d) 523

Answers

Answer:

c) 325

Step-by-step explanation:

The fraction of students that went to the movies is 14/112. To find the number of students who went to the movies from a larger group, you have to find a fraction equal to 14/112, whose denominator is 2600 (the number of students from the larger group).

14/112 = x/2600

You can do cross multiplication here. Cross multiplication is multiplying the denominator of one fraction by the numerator of the fraction equivalent to it. That product will be equal to the numerator of the first fraction * denominator of the second fraction.

112*x = 14*2600

x = 325

Approximately 325 students out of 2600 students would've gone to the movie last weekend.

On your way home from work, you stop at a fruit stand where apples are selling for 88 cents/lb. If you have $6.00 with you, how many pounds of apples can you buy (to the nearest whole pound)?

Answers

Answer:

7 lbs

Step-by-step explanation:

Given:

apples per pound= 88 cents

total money= $6.00

                   =600 cents

Now

1 lb= 88 cents

let x be the pounds of apple in 600 cents then

x lb=600 cents

By cross-multiplication we get:

600=88x

x=600/88

x= 6.81

x=7 pounds

7 pounds of apple can be bought by $6.00 !

Answer: 7 lb

Step-by-step explanation:

You know that in that fruit stand each pound of apple costs 88 cents.

Therefore, if you have $6.00, you need to divide this amount by 88 cents ($0.88 ) in order to calculate the pounds of apples you can buy.

Therefore, the pounds of apples you can buy to the nearest whole number is the following:

[tex]amount\ of\ apples=\frac{6.00}{0.88}=7\ lb[/tex]

Factor and solve the following equation 2x^2 + x - 21 = 0.

Answers

Answer:

x = -7/2 and 3

Step-by-step explanation:

Use foil. Solve for x.

Answer:

The factors are (2x + 7)(x - 3) and the solutions are -3.5 and 3

Step-by-step explanation:

* Lets explain how to factor a trinomial in the form ax² ± bx ± c:

- Look at the c term first.  

# If the c term is a positive number, then its factors r , s  will both

  be positive or both be negative.

# a has two factors h and k

# The sum of c and a is b.

# The brackets are (hx ± r)(kx ± s) where a = hk , c = rs and b = rk + hs

# If the c term is a negative number, then either r or s will be negative,

   but not both.

# a has two factors h and k

# The difference of c and a is b.

# The brackets are (hx + r)(kx - s) where a = hk , c = rs and b = rk - hs

* Lets solve the problem

∵ The equation is 2x² + x - 21 = 0

∵ The general form of the equation is ax² + bx + c = 0

∴ a = 2 , b = 1 , c = -21

∵ c is negative

∴ its factors r and s have different sign

∵ a = 2

∵ The factors of a are h , k

∵ 2 = 2 × 1

∴ h = 2 and k = 1

∵ -21 = 7 × -3

∴ r = 7 and s = -3

∵ The brackets are (hx + r)(kx - s)

∴ 2x² + x - 21 = (2x + 7)(x - 3)

∵ 2x² + x - 21 = 0

(2x + 7)(x - 3) = 0

- Equate each bracket by 0

∴ 2x + 7 = 0 ⇒ subtract 7 from both sides

∴ 2x = -7 ⇒ divide both sides by 2

∴ x = -7/2 = -3.5

- OR

∴ x - 3 = 0 ⇒ add 3 to both sides

∴ x = 3

The solutions are -3.5 and 3

* The factors are (2x + 7)(x - 3) and the solutions are -3.5 and 3

in the currency pair USD/CAN, USD is the ____ ?

Answers

Final answer:

In the currency pair USD/CAN, USD is the base currency. The value of this base currency is always one unit. The relation between the pair demonstrates the concept that when one currency strengthens, the other weakens.

Explanation:

In the currency pair USD/CAN, USD is the base currency. It is then compared to the other currency, called the quote or counter currency, in this case, the Canadian dollar (CAN). The base currency is always worth one unit, and the exchange rate you see tells you how much of the counter currency it takes to buy one unit of the base currency. A fall in the Canada $/U.S. $ ratio means a rise in the U.S. $/Canada $ ratio, demonstrating the idea that the appreciation or strengthening of one currency often implies the depreciation or weakening of the other.

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Final answer:

In the currency pair USD/CAN, USD is the base currency.

Explanation:

Currency refers to a system of money used in a specific country or region, including coins and banknotes. It serves as a medium of exchange for goods and services. Currencies have different denominations and exchange rates, facilitating economic transactions within their respective jurisdictions.

In the currency pair USD/CAN, USD is the base currency. In a currency pair, the base currency represents the value of one unit of that currency in terms of the other currency. In this case, the USD/CAN currency pair means that 1 USD is equivalent to a certain amount of Canadian dollars. For example, if the exchange rate is 1 USD = 1.25 CAD, it means that 1 USD can be exchanged for 1.25 Canadian dollars.

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The mean score on a set of 27 tests is 78. Suppose two more students take the test and score 69 and 66. What is the new mean?

Answers

Answer:

77.3 to the nearest tenth.

Step-by-step explanation:

The total of the scores on the set of 27 tests

= 78*27 = 2106.

After  2 more had joined the total score is 2106 + 69 + 66

= 2241.

So the new mean score = 2241 / 29

= 77.3.

Answer:

77.3

Step-by-step explanation:

Recall that the arithmetic mean is found as follows:

             sum of all data

a. m. = ---------------------------

             number of data

                                                                              sum

The mean score of 27 test results is thus 78 = --------

                                                                                27

Note that we can find the sum of all 27 of the original scores by multiplying 78 by 27:  2106.

Now we include two more scores.  Instead of the original sum, 2106, we have

                   2106 + 69 + 66

a. mean = ---------------------------

                              29

which comes out to 2241/29 = 77.3

What will it cost to carpet a rectangular floor 18 by 16 feet if the carpet costs $15 a square yard?​

Answers

Answer:

$1440

Step-by-step explanation:

First find the the area with feet.

18*16=288

Now convert into sq. yards

288/3=96

Finally, multiply 96 by 15

96*15=1440

$1440

Answer:

$1440

Step-by-step explanation:

It will cost $1440 to carpet a rectangular floor 18 by 16 feet if the carpet costs $15 a square yard.

18 feet ⋅ 16 feet = 288

288 feet ÷ 3 = 96

96 ⋅ 15 = 1440

With what number must 3.475817 be multiplied in order to obtain the number 34,758.17?.​

Answers

Answer:

[tex]10^4[/tex] or 10000

Step-by-step explanation:

So this is just a moving over of decimal.  It is a factor of 10. How many factors of 10 depends on many times we need to bring that decimal to the right.

Let's count.

3.4758.17

    | | | |

    That is 4 times to the right.

So you need 4 factors of 10, or [tex]10^4[/tex].

You need to multiply by [tex]10^4[/tex] (or 10000)

Answer:

10,000

Step-by-step explanation:

In your question, it asks what number you have to multiply by to get from 3.475817 to 34,758.17.

In order to find your answer, we can perform the quickest way to find the answer by moving the decimal place to the right.

To get from 3.475817 to 34,758.17, we're going to need to move the decimal place 4 times to the right, due to the fact that we're trying to get to a number where the decimal place is farther to the right.

We know that decimals goes by 10s, meaning that we would need to multiply by 10 in each move.

In other words, every time we move the decimal point to the right, we're multiplying by 10.

Since we moved 4 times, we need to multiply 10, 4 times.

[tex]10*10*10*10=10,000[/tex]

When you mutliply the 10s, you should get 10,000.

This means that you need to multiply by 10,000 to get from 3.475817 to 34,758.17

Checking to see if it's right:

You can multiply 3.475817 by 10,000 to see if it gets you 34,758.17

[tex]3.475817 * 10000=34,758.17[/tex]

When you multiply the numbers, you would get 34,758.17, meaning that the answer is CORRECT.

I hope this helps you out.Good luck on your academics.Have a fantastic day!

SOMEONE PLEASE HELP I NEED TO KNOW AND IVE BEEN ASKING THIS FOR 10 MINUTES

Roopesh has $24 dollars to spend on a birthday gift. The store where he is shopping has a sale offering $5 off the regular price, r, of any item. Write an inequality that can be used to determine the regular price of an item in the store that Roopesh can afford. (Assume there is no tax.)

What is the unknown?



Which expression can represent the sale price?



Which comparison could be used?



Which inequality represents the situation?



Answers

Answer:

r ≤ 29, r-5, The sale price can be compared with the regular price, r-5 ≤ 24

Step-by-step explanation:

Amount to spend = $24

Regular price = r

Sale = $5

Sale Price = r-5

The regular price will be at most $5 more than the amount Roopesh has to spend.

The sale price will be $24 or less than that for Roopesh to afford.

Inequality for regular price :

r-5 ≤ 24

r ≤ 29

Therefore, the product Roopesh can afford is $29 or less than that.

What is the unknown? r ≤ 29

Which expression can represent the sale price? Sale price = r-5 (mentioned above)

Which comparison could be used? The sale price can be compared with the regular price

Which inequality represents the situation? r-5 ≤ 24

!!

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