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3 years ago

Please help and show work

Mathematics

1 answer:

melamori03 [73]3 years ago

8 0

9514 1404 393

Answer:

h = 12 m

Step-by-step explanation:

Sides of the triangle are proportional.

(3.6 m)/(1.2 m) = h/(1.2 m + 2.8 m)

(4 m)(3.6/1.2) = h . . . . . multiply by 4 m

h = 12 m

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A rectangle’s length is 5 inches more than twice its width. Its area is 50 square inches. Which equation can be used to find its

Arte-miy333 [17]

Answer:

w(2w+5) = 50

Step-by-step explanation:

length x width = 50

length = 2w+5

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3 years ago

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Which of the following equations is equivalent to 7y+6=36, but written only in terms of x?

hodyreva [135]

Answer:

14x + 7 = 30

Step-by-step explanation:

Given

7y + 6 = 36 and y = 2x + 1

substitute y = 2x + 1 into 7y + 6 = 36 , that is

7(2x + 1) + 6 = 36 ( subtract 6 from both sides )

7(2x + 1) = 30 ← distribute parenthesis on left side by 7

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3 years ago

A 30° 60° 90° triangle is shown below. Find the length of the side labeled y.

bulgar [2K]

Answer:

Part 1) $y=3\ units$

Part 2) The length of the hypotenuse is 6 units

Step-by-step explanation:

Part 1) we know that

In the right triangle of the figure

$sin(60^o)=\frac{y}{2\sqrt{3}}$ ----> by SOH (opposite side divided by the hypotenuse)

solve for y

$y=sin(60^o)2\sqrt{3}$

Remember that

$sin(60^o)=\frac{\sqrt{3}}{2}$

substitute

$y=(\frac{\sqrt{3}}{2})2\sqrt{3}$

$y=3\ units$

Part 2)

Let

h ----> the length of the hypotenuse

we know that

In the right triangle of the figure

$sin(45^o)=\frac{3\sqrt{2}}{h}$ ----> by SOH (opposite side divided by the hypotenuse)

$h=\frac{3\sqrt{2}}{sin(45^o)}$

Remember that

$sin(45^o)=\frac{\sqrt{2}}{2}$

substitute

$h=3\sqrt{2}:\frac{\sqrt{2}}{2}$

$h=6\ units$

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3 years ago

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4 years ago

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alexandr1967 [171]

Answer:

the answer is: B- 6 and 19

Step-by-step explanation:

The reason its b is because, the lowest point is at 6 and the highest point is between 18 and 20, in other words 19.

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3 years ago

Please help and show work​

Please help and show work