answer n.8 for me pls

Answer N.8 For Me Pls

Answers

Answer 1

Answer:

Step-by-step explanation:

(13)2−(2x+7)=0

19x2−2x−7=0

9(19x2−2x−7)=9(0)

x2−18x−63=0

(x−21)(x+3)=0

Therefore, the value of x are

x - 21 = 0 and x + 3 = 0

x = 21 x = -3


Related Questions

The slope of (9,3), (19,-17)

Please can someone answer fast this is due in 5 minutes!!!!

Answers

I don’t know bruv but I hope this somewhat helps. I used a websti called dezmos.

I couldn’t really type it so here it is as a picture

how do you write 2/16 as a percent?​

Answers

Answer:

[tex]\huge\boxed{\dfrac{2}{16}=12.5\%}[/tex]

Step-by-step explanation:

[tex]p\%=\dfrac{p}{100}\to p=p\cdot100\%\\\\\dfrac{2}{16}=\dfrac{2:2}{16:2}=\dfrac{1}{8}\\\\\dfrac{1}{8}=\dfrac{1}{8}\cdot100\%=\dfrac{100}{8}\%=12.5\%\\\\\text{Other method.}\\\\\dfrac{1}{8}=\dfrac{1\cdot125}{8\cdot125}=\dfrac{125}{1000}=\dfrac{125:10}{1000:10}=\dfrac{12.5}{100}=12.5\%[/tex]

A trapezoid has vertices A(-5, 4), B(-3, 2), C(-7, -2).

and D(-7, 2). It is transformed according to the rule ry-axis o

T(-2.3).

What are the coordinates of C"?

(-9,5)

(-9, -1)

(5, 1)

(9, 1)

Answers

Answer:

d-(9,1)

Step-by-step explanation:

Answer:

(9,1)

Step-by-step explanation:

correct on edge

I need help plz only one question

Answers

150 is the answer to this question hope I help

Please help me ASAP! I will mark you as the best answer! I need the answers to the empty boxes

Answers

Answer:

4k=-2k+6-18

6k= -12

Step-by-step explanation:

Answer:

-      12

6     12

-2

Step-by-step explanation:

They add 6 to both sides so 4k=2-12

then add 2k to both side and get 6k=-12

divide by 6 and get k=-2

put the following equation of a line into slope-intercept form, simplifying all fractions. 4x + 3y = -3​

Answers

Final answer:

The slope-intercept form of the equation 4x + 3y = -3 is y = -4/3x - 1. The slope of the line is -4/3 and the y-intercept is -1.

Explanation:

The question asks to convert the equation 4x + 3y = -3 into slope-intercept form, and simplify all fractions. The slope-intercept form of a line is y = mx + b, where m is the slope and b is the y-intercept.

To transform the given equation into this form, we need to express it in terms of y. Here are the steps:

Subtract both sides of the equation by 4x, we get: 3y = -4x -3.Next, divide each term by 3 to isolate y: y = -4/3x - 1. Therefore, the slope-intercept form of the equation is y = -4/3x - 1.

In this equation, the term -4/3 is the slope and the -1 is the y-intercept. That means the line decreases for every 4 units in the y-axis when it increases 3 units in the x-axis.

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Help me please!!....

Answers

Answer:

J

Step-by-step explanation:

As you can see, the peak occurs at (2,6). That means that all values below 6 are in the range.

What is the total area of the following composite figure? Please answer ASAP for #34points

54.28 ft 2
73.12 ft 2
60.56 ft 2
98.24 ft 2

Answers

60.56 square feet, the area of the semicircles equates to 12.56 and the rectangle area is 48 so all you have to do is add them

Answer:

It is 60.56 ft2

Step-by-step explanation:

Hope this helps

15. f(x) = (x - 2)
Find f(-2)

Answers

Answer:

f (-2)=(-2)-2

= -4

By putting value of x= -2 in f (x)

What is the area of the trapezoid? [A = 1/2(b1 + b2)h]
A) 1249.5 sq cm
B) 162.75 sq cm
C) 105 sq cm
D) 38.75 sq cm

Answers

We can see that b1 = 18, b2 = 24, and h = 5

So, we can just substitute these in.

A = 1/2(18 + 24)5

A = 1/2 * 42 * 5

A = 21 * 5

A = 105

So, the answer is C. 105 sq cm

Answer:

105

Step-by-step explanation:

you just have to plug in your variables

It took Rachel 9.3 minutes to run a mile. It took Chris 0.9 times as long as it took Rachel to run the same distance. How long did it take Chris to run a mile?

Answers

Answer:

8.37 minutes

Step-by-step explanation:

The key word times helps us know what operation we're doing, which is multiplication. Multiply 9.3 by 0.9 to get your answer.

What is the arclength of PQ

Answers

Given:

θ = 54°

Radius = 10 in

To find:

The arc length of PQ

Solution:

Arc length formula:

[tex]$\text{Arc length}=2 \pi r\left(\frac{\theta}{360^\circ}\right)[/tex]

[tex]$\text{Arc length}=2 \times 3.14 \times 10\left(\frac{54^\circ}{360^\circ}\right)[/tex]

                 = 9.42 in

The arc length of PQ is 9.42 inches.

Point A is at (-7,-7) and point M is at (-6,-1). Point M is the midpoint of point A and point B. What are the coordinates of point B?

Answers

Step-by-step explanation:

M is the mid point of AB

here given A ( - 7 , -7) and M ( -6 , -1) Let the coordinates of point B be ( x1, y1)

Now

( - 6 , -1 ) = {( x1 - 7)/ 2 , ( y1 - 7) / 2}

Equating

-6 = x1 -7 -1 = y1 - 7

2. 2

-12 = x1 - 7. -2 = y1 - 7

x1 = -12 +7. y1 = -2 +7

Therefore x1 = - 5. Therefore y1 = 5

Therefore the coordinates of B is ( -5 , 5)

Answer:

the coordinates of B is ( -5 , 5)

Step-by-step explanation:

WILL MARK BRAINLIEST IF ANSWERED ASAP PLEASE I BEG OF YOU PLZ ANSWER QUICKLY!!! Which number line shows the graph of x greater-than-or-equal-to 11?
A number line going from 6 to 14. An open circle is at 11. Everything to the right of the circle is shaded.
A number line going from 6 to 14. A closed circle is at 11. Everything to the right of the circle is shaded.
A number line going from 6 to 14. An open circle is at 11. Everything to the left of the circle is shaded.
A number line going from 6 to 14. A closed circle is at 11. Everything to the left of the circle is shaded.

Answers

Answer:

The second one!:

A number line going from 6 to 14. A closed circle is at 11. Everything to the right of the circle is shaded.

Step-by-step explanation:

The one that has a line going towards 14 from 11. The circle is closed (filled in.)

Please mark brainliest! Hope this helps!

Answer:

????????????????????

the seccond one

Use the distributive property to factor the expression below.
-15x²y² + 25xy²

Answers

[tex]-15x^2y^2+25xy^2=5xy^2(-3x+5)\:or\:-5xy^2(3x-5)[/tex]

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P.S. Hello from Russia :^)

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What is the value of y? PLEASE HELP ASAP!

Answers

Answer:

y = 40 degrees can i have branliest

Step-by-step explanation:

All angles in a triangle add up to 180

180 - 50 = 130

3y + 10 = 130

3y = 120

y = 40

Answer:

c

Step-by-step explanation:

The diagonal of a square measures 16 inches. What is the length of the sides?

Answers

Answer:

The length of the sides is 8[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Since the diagonal divide a square into 2 45-45-90 triangles:

The diagonal is the hypotenuse of the triangle

Divide 16 by [tex]\sqrt{2}[/tex] and you will get 8[tex]\sqrt{2}[/tex].

If you like my answer please consider marking my answer as brainiest.

Bob is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.
Company A charges $76 and allows unlimited mileage.
Company B has an initial fee of $55 and charges an additional $0.70 for every mile driven.
For what mileages will Company A charge less than Company B?
Use m for the number of miles driven, and solve your inequality for m.

Answers

m = the number of miles driven

Company A cost = 76    

[they charge $76 for unlimited mileage, so they don't charge by the miles driven]

Company B cost =  0.70m + 55  

[they charge an initial fee of $55 plus $0.70 per mile(m)]

For what mileages will Company A charge less than Company B?

Company A cost < Company B cost  ----->   76 < 0.70m + 55      

To solve for m, isolate/get the variable "m" by itself in the inequality:

76 < 0.70m + 55     Subtract 55 on both sides

76 - 55 < 0.70m + 55 - 55

21 < 0.70m     Divide 0.70 on both sides to get "m" by itself

[tex]\frac{21}{0.70} <\frac{0.70m}{0.70}[/tex]

30 < m      [m is any number greater than 30]

Company A will charge less than Company B for mileages over/greater than 30.

Final answer:

Company A will charge less than Company B when more than 30 miles are driven; the inequality used to determine this is 76 < 55 + 0.70m, and after solving, it shows that m > 30.

Explanation:

To find out for what mileages Company A will charge less than Company B, we need to set up an inequality based on the given price structures for both companies:

Company A charges a flat rate of $76 per day, regardless of mileage.

Company B charges an initial fee of $55 plus $0.70 per mile driven.

The inequality to represent this scenario is:

76 < 55 + 0.70m

To solve for m (the number of miles driven), we subtract 55 from both sides:

21 < 0.70m

Then, divide both sides by 0.70 to isolate m:

m > 30

So, Company A will charge less than Company B when Bob drives more than 30 miles.

The average price of a gallon of milk is $3.31. If the price increases .88% each year , how much will a gallon of milk cost in 20 years?

Answers

Answer:

$3.94

Step-by-step explanation:

You will need to use the compound interest formula for this.

[tex]P(1+\frac{r}{n} )^{nt}[/tex]

P = initial balance

r = interest rate

n = number of times compounded annually

t = time

Your equation will look like this:

[tex]3.31(1+\frac{.0088}{1} )^{20}[/tex] = 3.94

I need help with question 5:) anything is appreciated:)))

Answers

Answer:

[tex]y=-150x+1600[/tex]

Step-by-step explanation:

Linear Equation:

[tex]$y=mx+b$[/tex]

[tex]f(x)=mx+b[/tex]

Consider:

The pool is full when the time is zero:

[tex]1600=m(0)+1600[/tex]

It is emptied (-) in the rate 150 gallons every hour.

[tex]f(x)=-150x+b[/tex]

[tex]f(x)=-150x+1600[/tex]

[tex]y=-150x+1600[/tex]

What is the first step in evaluating the expression 3 × (5 + 4) – 27 ÷ 9?

Answers

Step-by-step explanation:

According to BODMAS

the first way to evaluate the expression is starting from brackets.,

=3 * 9 -27 / 9

= 3 * 9 - 3

= 27- 3

=24

Answer:

Parenthesis.

Step-by-step explanation:

Parenthesis

Exponent

Multiply or

Divide

Add or

Subtract

PEMDAS is the order to solve expressions like so.

What number makes the equation true? Enter the answer in the box.
24-
=4

Answers

20


Explanation:

20 + 4 = 24. Therefore 24-20=4

suppose for everyone cup of rice I add 2 3/4 cups of water. If I add 2 1/2 cups of rice, how much cups of water do I add?

Answers

Answer:

6 7/8

Step-by-step explanation:

Since 1 cup of rice is added to 2 3/4 water

We are to determine the Amount of water to be to 2 1/2 cups of rice

Let the unknown number for water be x

So let's solve

1 cup of rice=11/4 water

5/2 cup of rice=x water

Cross multiply

x=5/2×11/4

x=55/8

X=6 7/8

Therefore,6 7/8 water is needed

if 48 is 92 percent than what is 100 percent

Answers

Answer:

Approximately 53

Step-by-step explanation:

92% of 53 is 48.76, there is no way to use a whole number and get exactly 48, which is why it is approximately

hope this helps

stay safe:)

brainliest is appreciated :)))))

A town has a population of 17000 and grows at 3% every year. To the nearest year, how long will it be until the population will reach 20400

Answers

Answer:

The population will reach 20,400 after 6 years.

Step-by-step explanation:

Exponential function:

[tex]y(t)=y_0(1+r)^t[/tex]

y(t)= Population after t years

[tex]y_0[/tex] = initial population

r= rate of grow

t= time.

A town has a population of 17,000 and grows at a rate 3% every year.

y(t)= 20,400, [tex]y_0[/tex] = 17,000, r=3%=0.03, t=?

[tex]20,400=17,000(1+0.03)^t[/tex]

[tex]\Rightarrow \frac{20,400}{17,000}=(1.03)^t[/tex]

[tex]\Rightarrow \frac{102}{85}=(1.03)^t[/tex]

Taking ln function both sides

[tex]\Rightarrow ln|\frac{102}{85}|=ln|(1.03)^t|[/tex]

[tex]\Rightarrow ln|\frac{102}{85}|=t\ ln|(1.03)|[/tex]

[tex]\Rightarrow t=\frac{ln|\frac{102}{85}|}{\ ln|(1.03)|}[/tex]

⇒ t = 6 year.

The population will reach 20,400 after 6 years.

Answer:

6

Step-by-step explanation:

deltamath

5p coins weigh approximatly 3g wat would be the weight of £5 worth of 5p coins

Answers

Answer:

3g

Step-by-step explanation:

Since 5p=3g

5p=x

So let's solve by cross multiplying

5px=3g×5p

5px=15gp

Divide both sides by 5p

x=3g

Therefore the final answer is 3g

The radius of a circle is 7m. Find the diameter. (Do not include unit)

Answers

Answer:

14

Step-by-step explanation:

The diameter of a circle is twice the radius

d = 2*r

d = 2*7

d =14 m

Answer:

diameter = 14

Step-by-step explanation:

given that the radius of a circle = 7m

diameter = ?

recall that the formulae for finding the diamer = 2 x radius

diameter = 2 x 7

diameter = 14

Solve the system of equations

5x + 3y = -2
3x + 2y = -1

Answers

Answer:

Step-by-step explanation:


You work 40 hours a week at a factory and make $2.00 per piece you create. It takes you
1 hour to create 5 pieces, how much money do you make per week?
I have to show work for the problem.

Answers

Answer:

400

Step-by-step explanation:

1 hour = 5 pieces • $2

1 hour = $10 bcas each piece you make is $2

40 hours = $400 because you get $10 per week

You earn $400 per week

Answer:

$400

Step-by-step explanation:

S x H  = (1 x 5 x 2) x 40

S x H  = (1 x 10)  x 40

S x H  = 10 x 40

S  =  400

S  = $400    H = 40

Put all the division problems that have an estimated quotient of 12 into the box.

8/0.95
18/2.2
47.6/3.9
10.6/1.89
71.9/6.5
123.4/9.2
157.4/16.4

Answers

Final answer:

The division problems 123.4/9.2 and 71.9/6.5 have an estimated quotient of 12 by considering 123.4 as 120, 9.2 as 10, 71.9 as 70, and 6.5 as 6.

Explanation:

The division problems with an estimated quotient of around 12 will be the ones where you divide a number close to 120 by 10. In this case, it comes to be 123.4/9.2 and 71.9/6.5. To estimate the quotient, you can consider 123.4 as approximately 120 and 9.2 as approximately 10. Similarly, 71.9 can be considered as approximately 70 and 6.5 as approximately 6. When you divide these estimate numbers, both quotients are close to 12.

Estimation is a useful skill in Mathematics that allows you to simplify complex problems and get close to the exact answer. It's particularly helpful in situations where you only need a rough estimate and not the exact figure.

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