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3 years ago

Use the Distributive Property and mental math to find the product. 7(28) I need this quick.

Mathematics

1 answer:

Luda [366]3 years ago

8 0

Answer:

196

Step-by-step explanation:

196

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I need someone to solve this problem for me please

Amiraneli [1.4K]

First, solve the area of the entire large rectangle (28)(45) = 1260
Next, find the area of the chunk that is cut out (11)(15) = 165
- we know the width is 15 because 45 - 6 - 24
Subtract the cut out piece from the overall rectangle 1260 - 165 = 1095

7 0

3 years ago

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Expand.<br> (x^2)(x^2-6)

Liono4ka [1.6K]

Answer:

This can be expanded to x⁴ - 6x²

Step-by-step explanation:

$x^2(x^2 - 6)\\= x^4 - 6x^2$

5 0

3 years ago

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Find the percent of increase to the nearest whole from 12 to 20

ankoles [38]

Answer:

The answer is

Step-by-step explanation:

To find the percentage increase we use the formula

<h3> $Percentage \: change = \frac{change}{original \: \: quantity} \times 100\%$ </h3>

From the question

The original value = 12

To find the change we subtract the smaller value from the larger one

That's

Change = 20 - 12 = 8

So the percentage increase is

<h3> $\frac{8}{12} \times 100 \%\\ = \frac{2}{3} \times 100\% \\ = 66.67\%$ </h3>

We have the final answer as

$67\%$ to the nearest whole number

Hope this helps you

3 0

3 years ago

Round .1325 to the nearest thousandths

faltersainse [42]

0.133 because 5 mean you have to round up so it is 0.133

3 0

4 years ago

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Write a quadratic function with zeroes 0 and 8.

Jlenok [28]

Answer:

$x^2-8x=0$

Step-by-step explanation:

the quadratic function should be as follows:

$x^2-8x=0$

Now let's confirm that the zeros of the function are 0 and 8

$x^2-8x=0=x(x-8)=0$

Therefore we can see that if x = 0

$0^2*8*0=0\\0=0$

the equation is fulfilled

And we also have $(x-8)$

for this expresion to be equal to zero:

$x-8=0\\x=8$

thus, if x = 8

$8^2-8*8=0\\64-64=0\\0=0$

the equation is also fulfilled

The zeros of the quadratic function $x^2-8x=0$ are 0 and 8.

3 0

3 years ago