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Kamila [148]
3 years ago
7

Help with this please elaborate if possible

Mathematics
1 answer:
svet-max [94.6K]3 years ago
3 0

Answer:

  8. yes

  9. no

  10. yes

Step-by-step explanation:

8. A horizontal line (y=3) is perpendicular to a vertical line (x=0).

__

9. A horizontal line (y=2) is parallel to a horizontal line (y=-1/2). The lines are not perpendicular.

__

10. A parallelogram is a rectangle if the sides are perpendicular. The slopes of the short sides are rise/run = -1, and the slopes of the long sides are rise/run = +1. These values have a product of -1, so the sides are perpendicular. The figure is a rectangle.

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Jacob is making a stew. The stew calls for 3/8 cup of rice. If he triples the recipe, how much rice will he need?
Paladinen [302]
Multiply by 3 so 3/8×3/1=9/8 / 1 1/8 cup of rice
6 0
4 years ago
Using the functions f(x) = 2x + 7, g(x) = x2 - 4, and h(x) = 5x. Find all of the following. Make sure your answer is in simplest
Stolb23 [73]

Answer:

Given

f(x) = 2x+7

g(x) = x^2-4

h(x) = 5x

a. 4h(x)

= 4 * 5x

= 20x

b. f(x) - g(x)

f(x) - g(x) = 2x + 7 - (x^2 - 4)

= 2x+7-x^2+4

=-x^2+2x+7+4

=-x^2+2x+11

c. f(g(x)) = 2(g(x))+7

=2(x^2-4) +7

=2x^2-8+7

=2x^2-1

d. g(x)h(x) = (x^2-4)(5x)

= 5x^3 - 20x

e. g(x) / f(x) = x2 - 4/ 2x + 7

7 0
3 years ago
The Ridgeport school district collected data about class
crimeas [40]

Answer:

Step-by-step explanation:

The answer is A

6 0
3 years ago
The directions are write and solve two step equations
Aneli [31]

Answer:

Sarah is 22

Step-by-step explanation:

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3 0
3 years ago
Please help 50 points wrong answers will be reported
AURORKA [14]

Answer:

A. y=2\sqrt{x+4}+5 is a translation of the parent function y=2\sqrt{x} 4 units left and 5 units up

Step-by-step explanation:

Consider expression \sqrt{4x+16}:

\sqrt{4x+16}=\sqrt{4\cdot (x+4)}=\sqrt{4}\cdot \sqrt{x+4}=2\sqrt{x+4}

Hence, the function is

y=2\sqrt{x+4}+5

Consider the parent function y=2\sqrt{x}

The main translations:

  • y=2\sqrt{x-a} - a units to the right;
  • y=2\sqrt{x+a} - a units to the left;
  • y=2\sqrt{x}+b - b units up;
  • y=2\sqrt{x}-b - b units down.

Hence, y=2\sqrt{x+4}+5 is a translation of the parent function y=2\sqrt{x} 4 units left and 5 units up

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