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3 years ago

If breadth of a rectangle is 19m and perimeter is 80m, find the length of the rectangle.

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

3 0

Answer: 21

Step-by-step explanation:

since 19 is the breadth and the perimeter is 80m, so 19*2=38 and 80-38= 42 so 42/2=21. The answer is 21

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Write the slope-intercept equation of a line parallel to y = 3x + 2 that

AURORKA [14]

Parallel lines have the same slope, in this case 3.

To find the y intercept we plug in the points (2,1) into y=mx+b, with 2 being x and 1 being y.

1=3(2) + b
Solve this and you get -5 as the y intercept.

The equation is y=3x-5

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3 years ago

What is the equation of the axis of symmetry for the parabola y equals negative start fraction one over two end fraction left pa

Pachacha [2.7K]

For the equation,
y = 1/2(x+3)^2 -5
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3 years ago

Read 2 more answers

...............................

antoniya [11.8K]

Answer:

Option C is the correct option.

Step-by-step explanation:

√ 8 • √ 5

Calculate the product

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Hope this helps...

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4 0

3 years ago

This figure is 1/4 of a circle.

drek231 [11]

For this case we have that by definition, the perimeter of a circle is given by:

$C = 2 \pi * r$

Where:

r: It is the radius of the circle.

According to the figure, it is observed that the radius of the circle is 2. Then:

$C = 2 \pi * 2\\C = 2 * 3.14 * 2\\C = 12.56 \ in$

Let's remember that we have a quarter circle:

$C = \frac {12.56} {4}\\C = 3.14$

We round and we have that the correct option is $3.1 \ in$

Answer:

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The attached figure is the image that completes the question

4 0

3 years ago

28 elementary schools to 16 middle school

insens350 [35]

Answer:

$\frac{7}{4}$

Step-by-step explanation:

Here is the complete question: 28 elementary schools to 16 middle schools, write the ratio in simplest form.

Given ratio= elementary schools: middle schools:: 28:16

The ratio can be written as $\frac{28}{16}$

Now to write $\frac{28}{16}$ into simplest form, we need to divide both numerator and denominator by 4.

∴ elementary schools: middle schools= $\frac{\frac{28}{4} }{\frac{16}{4} }$

Hence, we get simplest ratio of elementary schools to middle schools= $\frac{7}{4}$

4 0

3 years ago