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4 years ago

Help me with the first step

Mathematics

1 answer:

grandymaker [24]4 years ago

4 0

First find the area of the triangle: (4 x 6) ÷ 2 = 12
Then the area of the rectangle: 6 x 8 = 48
Last combine: 48 + 12 = 60

Lol, sorry~

Hope this helped tho

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Evaluate this expression for x=-5 and y=-5

Talja [164]

Answer:

$x - 2y=5$

Step-by-step explanation:

Given

$x = -5; y=-5$

$x - 2y$ --- missing from question

Required

Evaluate

We have:

$x - 2y$

Substitute for x and y

$x - 2y=-5 - 2*-5$

$x - 2y=-5 +10$

$x - 2y=5$

3 0

3 years ago

What is the initial value of the following equation? <br>y = 4(9)

Vinil7 [7]

Answer:

y = 36

Step-by-step explanation:

4(9) = 4 x 9 = 36

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3 years ago

How does knowing 1/5 of 10 help you find 3/5 of 10? Draw a picture to explain your thinking.

Alborosie

Answer:

If the problem is,

$\frac{1}{5}\text{ of }10$

By finding it,

Take a 5 box grid in which each box represents 1 unit,

Then take 1 box of this grid,

Repeat this step,

Finally, Add them,

We get,

A grid having 10 boxes with 2 taken boxes,

Thus, $\frac{1}{5}\times 10=2$

When we do these steps for three grids we will get $\frac{3}{5}\times 10$ ,

That is, by multiplying the result of $\frac{1}{5}\times 10$ by 3 we will obtain $\frac{3}{5}\times 10$

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7 0

3 years ago

What is the volume of 1/2 cm 4 cm 5/2 cm

iren [92.7K]

Answer:

5 cubic cm

Step-by-step explanation:

$volume = \frac{1}{2} \times 4 \times \frac{5}{2} \\ \\ \hspace{40 pt} = \frac{4 \times 5}{4} \\ \\ \hspace{40 pt}= 5 \: {cm}^{3} \\$

8 0

3 years ago

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nasty-shy [4]

Answer:

x = 9

Step-by-step explanation:

<h3> Pythagorean theorem:</h3>

$\sf (leg_1)^2 + (leg_2)^2 = hypotenuse^2$

$x^{2} + 12^2 = 15^2\\\\x^{2} + 144 = 225$

x² = 225 - 144

x² = 81

x² = 9²

x = 9

$\boxed{x = 9}$

8 0

3 years ago