Round 751.623 to the nearest hundredth

Answer:

7√2 i

Step-by-step explanation:

√(-98)

=√{(-1) .98}

=√(-1 . 2 . 7²)

=√-1 .√2 . √7²

= i . √2 . 7         [∵√-1 = i ]

=7√2 i

Answer:

[tex]\large\boxed{\sqrt{-98}=7\sqrt2\ i}[/tex]

Step-by-step explanation:

[tex]\sqrt{-98}=\sqrt{(-1)(49)(2)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\sqrt{-1}\cdot\sqrt{49}\cdot\sqrt2\qquad\text{use}\ \sqrt{-1}=i\ -\text{an imaginary unit}\\\\=i\cdot7\cdot\sqrt2\qquad\sqrt{49}=7\ \text{because}\ 7^2=49\\\\=7\sqrt2\ i[/tex]

Answer:

D

Step-by-step explanation:

[tex]\frac{f(x)}{g(x)}[/tex]

= [tex]\frac{2x+4}{2x^2+4x}[/tex]

Factor out 2 on the numerator and 2x on the denominator.

= [tex]\frac{2(x+2)}{2x(x+2)}[/tex]

Cancel the factor (x + 2) on the numerator/ denominator

= [tex]\frac{2}{2x}[/tex] ← cancel the 2 on numerator/ denominator

= [tex]\frac{1}{x}[/tex] : x ≠ 0

Answer:

12

Step-by-step explanation:

Answer:

-4 = h(x)

Step-by-step explanation:

[tex]6 - 10 = -4[/tex]

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Answer:

l = (S - 2wh)/(2w + 2h)

Step-by-step explanation:

S = 2lw + 2wh + 2hl

S - 2wh = 2lw + 2hl

S - 2wh = l (2w + 2h)

(S - 2wh)/(2w + 2h) = l

The equation S = 2lw + 2wh + 2lh the value of l is given by l = S / (2w + 2h + 2wh)

To solve for l in the equation S = 2lw + 2wh + 2lh, we'll isolate l on one side of the equation. Here are the steps to do that:

Step 1: Start with the given equation:

S = 2lw + 2wh + 2lh

Step 2: Factor out l from the terms that contain it:

S = l( 2w + 2h + 2wh )

Step 3: Divide both sides of the equation by (2w + 2h + 2wh) to solve for l:

S / ( 2w + 2h + 2wh ) = l

So, the value of l is given by:

l = S / ( 2w + 2h + 2wh )

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Answer:

8.) x = 5, x=-12

9.)x = 5, x = -8

10.)x = -1/5, x = -2

Hope I helped :)

Answer:

10. -2, -⅕ = x

9. -8, 5 = x

8. -12, 5 = x

7. -5, 6 = x

Step-by-step explanation:

10. [tex]5{x}^{2} + 11x + 2 = 0 \\ \\ (5{x}^{2} + x) + (10x + 2) = 0 \\ x(5x + 1) + 2(5x + 1) \\ \\ (x + 2)(5x + 1) = 0 \\ \\ -2, \: - \frac{1}{5} = x[/tex]

9.

[tex]2{x}^{2} + 6x - 80 = 0 \\ \\ (2{x}^{2} + 16x) - (10x - 80) = 0 \\ 2x(x + 8) -10(x + 8) = 0 \\ \\ (x + 8)(2x - 10) = 0 \\ \\ -8, \: 5 = x[/tex]

8.

[tex] {x}^{2} + 8x - 65 = x - 5 \:→ {x}^{2} + 7x - 60 \\ \\ ({x}^{2} - 5x) + (12x - 60) \\ x(x - 5) + 12(x - 5) \\ \\ (x + 12)(x - 5) = 0 \\ \\ 5, \: -12 = x[/tex]

7.

[tex] {x}^{2} = x + 30 → - {x}^{2} + x + 30 \\ \\ (-{x}^{2} - 5x) + (6x + 30) \\ -x(x + 5) + 6(x + 5) \\ \\ -(x - 6)(x + 5) = 0 \\ \\ -5, \: 6 = x[/tex]

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The lines that are parallel to each other are as follows;

When parallel lines are cut by a transversal, angles relationship are formed.

This angle relationship includes corresponding angles, alternate angles, vertical angles and many more.

Therefore, the lines that are parallel are as follows;

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Answer:

3/2 (or 1 1/2)

Step-by-step explanation:

-4 1/6 + 5 2/3​   (express as improper fractions)

= -25/6 + 17/3  (convert fractions common denominator i.e 6)

= -25/6 + (17/3)(2/2)

= -25/6 + (17 x 2)/6

= -25/6 + 34/6

= 9/6

= 3/2

=1 1/2

Answer:

-6

Step-by-step explanation:

-2 * 5 = -10

-10 + 4 = -6

Answer is -6

-2(5)+4

You multiply '-2' to '(5)' which equals to '-10' then you add '4' and the correct answer is '-14'

Hope this helped, my dude

Answer:

2 cubic centimeters per minute

Step-by-step explanation:

8 cubic centimeters filled per 4 minutes

divide 8 by 4 = 2

2 cubic centimeters per minute

Answer: 2 cubic centimeters

Step-by-step explanation:

Given : As lucia fills her fish tank, she notices that it fills 8 cubic centimeters of water in 4 minutes.

i.e. Time taken to fills 8 cubic centimeters of water = 4 minutes

By UNITARY METHOD, we have

Amount of water it fills in 1 minute (i.e. Unit rate) = [tex]\dfrac{\text{8 cubic centimeters }}{\text{4 minutes}}[/tex]

= [tex]\dfrac{8}{4}=2[/tex] cubic centimeters

Therefore, it fills 2 cubic centimeters in 1 minute.

Hence, the correct answer is 2 cubic centimeters.

Answer:

They are mirrored

Step-by-step explanation:

When you cut it in half horizontally you can see both sides are mirrored so the  lines have the same length

Answer:

(2,3)

Step-by-step explanation:

Rotation through 90 clockwise gives the expression

( x , y )___ ( y ,- x )

so when you put the points -3 ,2 in the relation , it becomes

( -3 , 2 ) ___ ( 2, - -3 )

= ( x, y ) __ ( 2, 3 ). meaning when you rotate -3,2 through 90 clockwise you will get the image ( 2 ,3 )

Answer: A, 17 inch

The box is 21 inches long, anything longer and it won't fit. 17 inch is the only thing shorter than 21.

Answer:

the green means its right at the top

Step-by-step explanation:

Answer:

<1 ,1>..., square root of two

Step-by-step explanation:

Component of vector PQ...,

; Q - P...where you subtract the x coordinate of Q by the x coordinate of P and the same for the y coordinate

; <(6-5),(9-8)>

; < 1,1 >

And the magnitude of PQ...,

;square root of( 1^2 + 1^2 )

;square root of 2

Final answer:

The component form of vector PQ is <1, 1>, and the magnitude is the square root of 2, thus the correct answer is <1, 1>, square root of 2.

Explanation:

To find the component form and magnitude of vector PQ, we calculate the difference in the x-coordinates and the y-coordinates of points P and Q. The component form of a vector is obtained by subtracting the coordinates of the initial point from the coordinates of the terminal point. In this case, the initial point is P(5, 8) and the terminal point is Q(6, 9).

The component form of vector PQ is therefore:

Vector PQ = (Qx - Px, Qy - Py)

Vector PQ = (6 - 5, 9 - 8)

Vector PQ = <1, 1>

Next, to find the magnitude of vector PQ, we use the Pythagorean theorem, which is the square root of the sum of the squares of the components:

Magnitude of PQ = √(1^2 + 1^2)

Magnitude of PQ = √(2)

Magnitude of PQ = √2

Therefore, the correct answer is <1, 1>, √2.

Answer:

Step-by-step explanation:

an equation is : Use the point-slope formula.

y - y_1 = m(x - x_1)    ;  m : the slope   when : x_1 = -3   and  y_1  = 7

- 2 ×m = - 1  because this line is perpendicular to the line y= -2x-5 when the slope is  -2

so : m= 1/2

an equation is : y - 7 =(1/2)(x+3)  

Answer:

The desired equation is

y = (1/2)x + 17/2

Step-by-step explanation:

The slope of the perpendicular line is the negative reciprocal of -2:  m = 1/2.

Start with y = mx + b.

Substituting 7 for y, 1/2 for m and -3 for x, we get:

                7 = (1/2)(-3) + b.  Then 7 = -3/2 + b, so that b = 17/2.

The desired equation is

y = (1/2)x + 17/2

Answer:

h

Step-by-step explanation:

80-35=45

4days x10=40

leaving 5 dollars left so u need another week to save 5 dollars more

in total of 5 weeks

The answer is She has to work at least for 4.5 to be able to buy the bicycle i.e x≥4.5

The unitary method is a method in which you find the value of a unit and then the value of a required number of units.

Given here: price of the bicycle is $80 and she has $35 in hand

If she earns $10 in a week then let x weeks be the minimum number of weeks she has to work then we have

x= 45/10

  =4.5 weeks

Hence, She has to work at least for 4.5 to be able to buy the bicycle

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Answer:

6.59

Step-by-step explanation:

52.72 ÷ 8 = 6.59

So the answer is 6.59

Answer:

20 children and 20 adults

Step-by-step explanation:

20 + 20 = 40

Answer:

20 adults 20 children

Step-by-step explanation:

if theres the same amount of children and adults just do 40/2

Answer:

x = y + b - a

Step-by-step explanation:

Given

y = x + a - b ( add b to both sides )

y + b = x + a ( isolate x by subtracting a from both sides )

y + b - a = x

reduce the index of the radical and exponent with 3, rhen you get your answer, 6

The bus must be used 30 times in a month for the total monthly cost without the discount pass to be the same as the total monthly cost with the discount pass.

The mathematical problem deals with determining the number of times one must take a bus ride for a monthly discount pass to be as cost-effective as individual fare payments. To solve it, we must set up an equation based on the cost of bus rides. Let's denote the number of bus rides as 'n'.

Without the pass, each ride is $1.25, so n rides would cost 1.25n dollars.

With the pass, each ride is $0.75 and you also need to pay $15 for the monthly pass, so n rides would cost 0.75n + 15 dollars.

To find out the break-even point, we set these two expressions for the total cost equal to each other:

1.25n = 0.75n + 15

Solving this equation gives us:

0.5n = 15, n = 15/0.5 = 30.

Therefore, the bus must be used 30 times in a month for the total monthly cost without the discount pass to be the same as the total monthly cost with the discount pass.

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Assuming one salad requires 1 cup of tomatoes, Karl can make 5 salads as shown by the division equation 5 cups / 1 salad = 5 salads. The multiplication equation 5 salads x 1 cup = 5 cups demonstrates the amount of tomatoes needed for 5 salads.

To properly answer this question, we first need to know the number of cups of tomatoes required to make one salad. However, if we suppose that one salad requires 1 cup of tomatoes, then the division equation is 5 cups / 1 salad = 5 salads. This equation illustrates that Karl can make 5 salads with the amount of tomatoes he has.

On the other hand, the multiplication equation would be 5 salads x 1 cup = 5 cups. This equation pertains to how many cups of tomatoes are needed to make 5 salads. Please note that these equations assume that 1 cup of tomatoes is needed for a single salad, but the proportions may vary depending on the actual recipe.

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Karl can make 5 salads using 5 cups of tomatoes.

Assuming Karl makes salads that require 1 cup of tomatoes each, we can determine the number of salads he can make using division:

Number of salads = Total tomatoes (cups) / Tomatoes per salad (cups)

Number of salads = 5 cups / 1 cup/salad

Therefore, Karl can make 5 salads using 5 cups of tomatoes.

A multiplication equation can be used to express the relationship between the number of salads, the number of tomatoes per salad, and the total number of tomatoes:

Total tomatoes (cups) = Number of salads × Tomatoes per salad (cups)

5 cups = 5 salads × 1 cup/salad

Both equations demonstrate the same relationship between the number of salads, the number of tomatoes per salad, and the total number of tomatoes.

Answer:

A

Step-by-step explanation:

The general formula for the volume of a right cone is as follows (also see attached):

V = (1/3) π r² h; where r = radius of base and h = height

In this case, it is given that r = x

also given :

height = 2 (base radius)

or

h = 2x.

Hence the formula becomes:

V = (1/3) π r² h

V = (1/3) π x² (2x)

V = (2/3) π x³  (answer A)

The equation which is equivalent to √x + 11 = 15 is: C. √x = 15 - 11.

Given the following equation:

To evaluate the given mathematical equation:

In this exercise, you're required to evaluate the given mathematical equation. Thus, we would make x the subject of formula in the equation and then simplify as follows:

√x = 15 - 11 (equivalent)

√x = 4

Taking the square of both sides, we have:

x = 4²

x = 16.

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Answer:

The distance (d) between two points (x1,y1) and (x2,y2) is given by the formula

d = √  ((X2-X1)2+(Y2-Y1)2)

d = √ (5-2)2+(3-8)2

d = √ ((3)2+(-5)2)

d = √ (9+25)

d = √ 34

The distance between the points is 5.8309518948453

The midpoint of two points is given by the formula

Midpoint= ((X1+X2)/2,(Y1+Y2)/2)

Find the x value of the midpoint

Xm=(X1+X2)/2

Xm=(2+5)/2=3.5

Find the Y value of the midpoint

Ym=(Y1+Y2)/2

Ym=(8+3)/2=5.5

The midpoint is: (3.5,5.5)

Graphing the two points, midpoint and distance

P1 (2,8)

P2 (5,3)

Midpoint (3.5,5.5)

The length of the black line is the distance between the points (5.8309518948453)

Find the slope of the line connecting the two points

Slope =  (Y2-Y1)  =  (3-8)  =  (-5)  = -1.66666666666667

(X2-X1) (5-2) (3)

Find the equation of the line passing through the two points

The general equation for a straight line is

y = mx + b

Where m represents the slope of the line which we found in the previous step to be -1.66666666666667

y = -1.67x + b

We substitute x and y for the values from one of our points (2,8)

8 = -1.67×2 + b

8 = -3.33 + b

8--3.33 = b

11.33 = b

Knowing both b and m, we can contruct the equation of the line

y= -1.67x+ 11.33

X and Y intercepts

The x-intercept is a point on the graph where y is zero

Using the equation we found in the previous step and substituting zero for y

y= -1.67x+ 11.33

0= -1.67x+ 11.33

1.67x= 11.33

x= 11.33/1.67 = 6.80

The x intercept for this straight line is 6.80

The y-intercept is a point on the graph where x is zero

Using the equation we found in the previous step and substituting zero for x

y= -1.67×0+ 11.33

y= 11.33

The y intercept for this straight line is 6.80

References

refernce image showing the distance between two points on the xy plane

Step-by-step explanation:

The distance between the two points will be √34. The correct option is c

A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.

The distance (d) between two points (x₁,y₁) and (x₂,y₂) is given by the formula:-

d = √  ((X₂-X₁)²+(Y₂-Y₁)²)

d = √ (5-2)²+(3-8)²

d = √ ((3)²+(-5)²)

d = √ (9+25)

d = √ 34

Therefore, the distance between the two points will be √34. The correct option is c

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Answer:

The decimal number is 0.964

Step-by-step explanation:

we have

[tex]9(\frac{1}{10})+ 6(\frac{1}{100})+4(\frac{1}{1,000})[/tex]

step 1

Multiply each fraction by the whole number

[tex](\frac{9}{10})+ (\frac{6}{100})+(\frac{4}{1,000})[/tex]

step 2

Convert each fraction in a decimal number

Remember

Move the decimal point to the left as many places as there are zeros in the factor.

Move the decimal point one step to the left (10 has one zero).

Move the decimal point two steps to the left (100 has two zeros)

Move the decimal point three steps to the left (1000 has three zeros)

[tex]0.9+0.06+0.004[/tex]

step 3

Adds the number

[tex]0.964[/tex]

Answer:

2⅖

Step-by-step explanation:

Set this up as a proportion:

⅘ ? [parts of the necklace]

__ = __

⅓ 1 [hours]

Divide four-fifths by one-third to get 2⅖.

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** ⅓ hour = 20 minutes

Answer:

c

Step-by-step explanation:

Graph C of ordered pairs shows a proportional relationship.

Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value time the other.

A proportional relationship is one where there is multiplying or dividing between the two numbers. A linear relationship can be a proportional one (for example y=3x is proportional), but usually, a linear equation has a proportional component plus some constant number (for example y=3x +4).

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Answer:

Step-by-step explanation:

Whole, integer, rational, real