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2 years ago

Which of the following functions has a vertex of (-4,3) and a line of symmetry of x= -4?

Mathematics

1 answer:

natali 33 [55]2 years ago

4 0

Answer:d

Step-by-step explanation:

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What is the area of this trapezoid? Enter your answer in the box.

mezya [45]

Answer:

352 ft²

Step-by-step explanation:

The formula for the area of a trapezoid is $A=(\frac{b_1+b_2}{2})h$ where $b_1$ and $b_2$ are the bases of the trapezoid and $h$ is the height, thus:

$A=(\frac{b_1+b_2}{2})h\\\\A=(\frac{13+31}{2})(16)\\\\A=(\frac{44}{2})(16)\\ \\A=(22)(16)\\\\A=352$

This means that the area of the trapezoid is 352 ft².

5 0

2 years ago

Jasmine is riding on a carousal. She is sitting 9.5 feet from the center and it takes 20 seconds to

rusak2 [61]

Answer:

2.983 ft/sec

Step-by-step explanation:

Given that

Distance between center and Jasmine riding on a carousal = 9.5 feet

Time taken to complete one rotation = 20 seconds

To find:

Jasmine's linear speed = ?

Solution:

Number of revolutions per minute = $\frac{60}{20} = 3$

Formula for linear speed is given as:

$v=\dfrac{2\pi}{60}\cdot r\cdot RPM$

Where $r$ is the radius of circular path and

$RPM$ is the number of revolutions per minute.

$v=\dfrac{2\pi}{60}\times 9.5 \times 3\\\Rightarrow v=\dfrac{\pi}{10}\times9.5 \\\Rightarrow v = \bold{2.983\ ft/sec}$

Therefore, the linear speed is 2.983 ft/sec.

5 0

3 years ago

Which expression represents a number that is 4 times as great as the quotient of 25 and 5? A. ( 25 × 5 ) × 4 B. 4 ÷ ( 25 × 5 ) C

oksano4ka [1.4K]

Answer:

It would be D.

4 0

3 years ago

Read 2 more answers

the area of a square mirror is 256 inches squared. A Rectagular mirror has a width the same as the square mirror`s width.Its len

hjlf

Take the square root of 256 to find the side length of the mirror
√256 =16
the rectangles width is 16, it length is 2 inches longer
16+2 =18 so the length is 18
to find the area multiply them together
18x16=288
the area is 288 inches² :)

3 0

3 years ago

4) 8x+4y=-8 -x + 4y = -17

horrorfan [7]

Answer:

x=1

y=-4

Step-by-step explanation:

find x by making y to 0
sub x into equation
find y

8 0

3 years ago