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3 years ago

Please Help! Answer Step By Step 2(5 + 8) = ????

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

6 0

Answer:

Step-by-step explanation:

2(5+8)

=2×(13)

=26

therefore 26 is the answer

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WHAT IS THE TOTAL SURFACE AREA OF THE SQUARE PYRAMID???? THIS IS THE LAST QUESTION AND I ONLY HAVE 13 POINTS SO PLEASE ANSWER CO

olganol [36]

Answer:

The answer is 203 cubed in

Step-by-step explanation:

7 x 11 = 77

77 x 2 = 154

7 x 7 = 49

154 + 49 = 203

6 0

3 years ago

Magma fills the gap between plates at ____________ boundaries.

fomenos

<span>divergent

I think... Hope this help!
</span>

4 0

4 years ago

Determine weather the statement is true or false. Justify your answer

topjm [15]

$\begin{gathered} \cos (-\frac{7\pi}{2})=\cos (\pi+\frac{\pi}{2}) \\ \cos (-\frac{7\pi}{2})=\cos (\frac{3\pi}{2}) \end{gathered}$

As we know:

$\begin{gathered} \cos (x)=0 \\ for \\ x=\pi n-\frac{\pi}{2} \\ n\in Z \end{gathered}$

For:

$\begin{gathered} n=2 \\ x=2\pi-\frac{\pi}{2}=\frac{3\pi}{2} \\ for \\ n=-3 \\ x=-3\pi-\frac{\pi}{2}=-\frac{7\pi}{2} \end{gathered}$

Therefore:

$\begin{gathered} \cos (-\frac{7\pi}{2})=0 \\ and \\ \cos (\frac{3\pi}{2})=0 \\ so\colon \\ 0=0 \\ This_{\text{ }}is_{\text{ }}true \end{gathered}$

Therefore, the statement is true

7 0

1 year ago

All diagonals of a regular polygon are equal. True or false. Please give a counterexample if it is FALSE

lorasvet [3.4K]

It is false
when you imagine or draw the picture of the polygon and try to cut into halves diagonally you'll get an uneven amount of piece
i hoped I helped and plz give me brainlist

5 0

3 years ago

Another KA question pls answer lol

FinnZ [79.3K]

Answer:

-40m + 24

Step-by-step explanation:

to answer this question you should distribute the -8 to all the digits

-8m + 24 -32m

then you can add like terms

-8m and -32m become -40m

-40m + 24 is the answer

4 0

2 years ago

Read 2 more answers