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SashulF [63]
3 years ago
14

Help:) pls last question

Mathematics
1 answer:
wolverine [178]3 years ago
6 0

Answer:

7.5

Step-by-step explanation:

15 times 50 is 750

750 divided by 100 is 7.5

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The tables represent two linear functions in a system.
lisov135 [29]
First table
y = -4x +10
if x = 8, y = -4(8) + 10 = -22

second table
y =-3x + 2
if x = 8, y = -3(8) + 2 = -22

answer

D (8, –22) <span>is the solution to this system</span>
6 0
3 years ago
Read 2 more answers
A searchlight is shaped like a parabola. If the light source is located 3 feet from the base along the axis of symmetry and the
Elis [28]

9514 1404 393

Answer:

  8√3 ≈ 13.86 ft

Step-by-step explanation:

The light source is usually placed at the focus, so the focus-vertex distance is p=3 ft. The equation for the parabola with its vertex at the origin is ...

  y = 1/(4p)x^2

  y = 1/12x^2

The opening for some y-value extends ±x from the axis of symmetry, so is a total of 2x in width.

For y=4, the corresponding value of x is ...

  4 = 1/12x^2

  48 = x^2

  √48 = x = 4√3

Then the width of the searchlight opening is ...

  2(4√3 ft) = 8√3 ft ≈ 13.86 ft

5 0
3 years ago
HELPPP ME PLEAASSEE.
siniylev [52]

Answer:

Betsy's calculations in Step 1 are correct because (8 + 18) gives 26. Betsy's calculations in Step 2 are incorrect because 3^4 doesn't give 12. If Betsy reaches her goal each year, she will have 2,106 customers 4 years from now.

Step-by-step explanation:

5 0
3 years ago
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PLSSSSSS HELPPPP!!!!!Determine the area of the composite figure shown.
katrin2010 [14]

Answer: 26.13yards^2

Step-by-step explanation:

To find the area of the bottom part we can use the diameter.

6 yards. Divide it by half to have the Radius.

Now we use the formula to find the area of a circle which is

A = 3.14*R^2         Pie times radius squared.

A = 3.14*3^2

A = 3.14*9

A = 28.26 Now that we have the area of the circle divide it by 2.

14.13

Now to find the area of an isosceles triangle we use the formula

A = Base * Height Divided by 2.

A = 6*4/2

A = 24/2

A = 12

12 + 14.13 = 26.13

7 0
3 years ago
A line passes through the points (1, 4) and (3,-4). Which is the equation of the line?
SVETLANKA909090 [29]

Answer:

Y=-4x+8

Step-by-step explanation:

y2-y1/x2-x1

This wil give you slope.

5 0
3 years ago
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