3 years ago

Which of the following can be used to describe the rectangle below?

Mathematics

1 answer:

bekas [8.4K]3 years ago

7 0

Answer:

a or b i think a!

Step-by-step explanation:

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State if each triangle with the following side lengths is 7, 8, 10 acute, obtuse, or right.

zhuklara [117]

Step-by-step explanation:

Compare the longest side to the other 2 shorter sides of the triangle:

10² : 7² + 8²

= 100 : 113

Since 7² + 8² > 10², it is an acute triangle.

4 0

3 years ago

Find the number to add to x^2-18x

pentagon [3]

Answer:

A. add 81; $(x-9)^2$

Step-by-step explanation:

The perfect square formula

$(a-b)^2=a^2-2ab+b^2$

Rewrite expression $x^2-18x$ as follows:

$x^2-2\cdot 9\cdot x$

So, to form a perfect square, $+9^2$ is missed.

When we add $9^2=81,$ we will get

$x^2-2\cdot 9\cdot x+9^2=(x-9)^2$

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3 years ago

A camera company routinely ships cameras that have 4 defective cameras for every 800 shipped. Bradley works at a photo shop that

garri49 [273]

From the information in the problem, the ratio of defective cameras to cameras shipped is $\frac{4}{800}$ . Reducing this ratio, we get the simplified form of

$\frac{4}{800}\div \frac{4}{4}= \frac{1}{200}$

which, incidentally, gives us our answer. We have 1 defective camera for every 200 cameras shipped.

6 0

3 years ago

Linear system <br>x-y=9<br>X+2y=27

Alexeev081 [22]

X=15 and y=6

15-6=9
15+2(6)=27
2(6)=12

7 0

3 years ago

A) (x + y + 4).(x + y –4)

miv72 [106K]

Answer:

if you want to factorise it answer will be : (x+y)^2 - 4^2

and if you have to expand it anwer will be x^2 + y^2 + 2xy -16

5 0

3 years ago