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3 years ago

??????????????????????????????

Mathematics

2 answers:

fiasKO [112]3 years ago

6 0

Step-by-step explanation:

$>$

Try putting it on a timeline. It makes more sense that way :)

Mkey [24]3 years ago

6 0

> I hope that helped

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A construction worker fills a mold with concrete. This solid figure represents the mold.

allochka39001 [22]

Answer:

6580cm

Step-by-step explanation:

The answer is 6580cm because....

Step one First let's figure out what the smaller shape's volume is. To do so we need to multiply ( LxWxH ) so 6x5x? it does not list what the height is so we know it has the same height as the larger shape and it's height is 14cm so we will use 14cm. 6x5x14=420cm
Step two Now lets find the Volume of the larger shape. So lets do LxWxH so Lx?x14 it does not give us the length so we need to add up all of the numbers along the line. We got 7cm then 5 from the bottom of the smaller shape and 10cm. all ads up to 22cm so 20x22x14=6160
Finally we add up the following shapes Volume which are 6160+420=6580cm

3 0

3 years ago

Kylie explained that (negative 4 x + 9) squared will result in a difference of squares because (negative 4 x + 9) squared = (neg

Eva8 [605]

Given:

The given expression is:

$(-4x+9)^2$

According to Kylie,

$(-4x+9)^2=(-4x)^2+(9)^2$

$(-4x+9)^2=16x^2+81$

To find:

The correct statement for Kylie's explanation.

Solution:

We have,

$(-4x+9)^2$

According to the perfect square trinomial $(a+b)^2=a^2+2ab+b^2$ .

$(-4x+9)^2=(-4x)^2+2(-4x)(9)+(9)^2$

$(-4x+9)^2=16x^2-72x+81$

Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

Therefore, the correct option is C.

4 0

3 years ago

Read 2 more answers

(0.4+ 1.6) x 6 what is it please help

Katarina [22]

Answer:

Step-by-step explanation:

(0.4+ 1.6) x 6 = 2 x 6 = 12

4 0

3 years ago

Read 2 more answers

What is the volume of the square pyramid shown below?

NemiM [27]

Answer: C) $147cm^{3}$

Step-by-step explanation:

First we need to calculate the area of the square base.

This is 7*7 which equals 49 cm squared.

Plug this value into the formula of a square pyramid which will be $V = 49 * \frac{h}{3}$ , now plug in the h, which is 9 cm.

$V = 49 * \frac{9}{3}$

Now solve.

V = 147 cubic cm.

4 0

3 years ago

What are supplemenatry angles

telo118 [61]

Answer:

Supplementary angles are two angles that add up to 180 degrees.

Step-by-step explanation:

They angles don't have to be next to each other to be supplementary, just so long as the total is 180 degrees. Examples: • 60° and 120° are supplementary angles.

<em>Hope I answered your question:)</em>

3 0

3 years ago