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3 years ago

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The perimeter of a square is 30cm the perimeter of a rectangle is 30cm use this information to find out the area of the square b

elow?

1 answer:

kogti [31]3 years ago

7 0

Step-by-step explanation:

perimeter of square = 30cm

perimeter of rectangle = 30cm

area of square is = 30×30= 900 cm

hope it helps , make sure to follow !!!!

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Find the value of 5(a-4b) when a =-7 and b=1/4

tatiyna

Answer:

- 40

Step-by-step explanation:

$5(a - 4b) \\ = 5 \bigg(- 7 - 4 \times \frac{1}{4} \bigg ) \\ = 5 \bigg(- 7 - 1 \bigg ) \\ = 5 \times ( - 8) \\ = - 40$

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3 years ago

Is 8/15 closest to 0,1/2"or 1

Bumek [7]

8/15 is closest to 1/2

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3 years ago

sydney is cutting the crust from the edges of her sandwich. the dimensions, in centimeters, of the sandwich is shown. which expr

hodyreva [135]

Here we can see that the problem gives us the length of a sandwich of x = 1.2. The problem also asks us for the expression that better represents the approximate length of the crust given among the options above. Here we simply have to substitute x to each of the choices.

The answer is B) x = 8x² + 34; 45.52 centemiters

I hope it helps, Regards.

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3 years ago

Read 2 more answers

A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC b

rosijanka [135]

Answer:

4.) Step 2; it should be m∠o + m∠p = 180 degrees (supplementary angles)

Step-by-step explanation:

o and p are supplementary angles, and therefore add up to 180 degrees.

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3 years ago

If the length of AO is double the length of CO, the length of BO is?

andreev551 [17]

BO is double that of DO. In other words, BO is two times longer than DO. The answer is choice B

For example, if DO were 3 units long, then BO would be 6 units long (2*3 = 6). This works because the triangles DCO and BAO are similar triangles. The corresponding sides are in the same ratio or proportion to one another. The larger triangle (BAO) has sides that are twice as long as the smaller triangle's (DCO) corresponding sides.

Side note: we can prove the triangles to be similar using the AA (angle angle) similarity theorem. The first pair of angles are the vertical angles DOC and BOA which are congruent to each other.The second pair is CDB and ABD which are congruent by the alternate interior angle theorem. Check out the attached image for a visual.

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3 years ago