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3 years ago

Question 22 of 25

Mathematics

2 answers:

Akimi4 [234]3 years ago

6 0

Answer:

The answer is B

Step-by-step explanation:

YEAH its is, And god is GIOD

mote1985 [20]3 years ago

5 0

Answer

Step-by-step explanation:

Is the answer !

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Round 7.04 to the nearest tenths

Strike441 [17]

Answer:

it's 10 I think lol.....

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3 years ago

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there are 3 slices of pie left, and the angle measurement is 72 degrees, how many slices was the pie cut in to

Daniel [21]

15; this is because 3 pies make up 72
with this you can make it so that 3x=72
After this you need to find x which is a single pie
so; (3x/3)=(72/3)
x= 24
Since you know a circle is 360 degrees all around the center
You can do 360/24 making it 15 pies.

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3 years ago

Solve both by substitution method (algebra 2) and show work please -2x-7y=22 -7x-5y=-1

Alex17521 [72]

$\bf \begin{cases}
-2x-7y=22\\
-7x-5y=-1
\end{cases}\qquad \textit{let's solve the \underline{second one} for "x"}
\\\\\\
-7x-5y=-1\implies -7x=5y-1\implies x=\cfrac{5y-1}{-7}
\\\\\\
\boxed{x=\cfrac{1-5y}{7}}\impliedby \textit{now, let's substitute it in the \underline{first one}}
\\\\\\$

$\bf -2\left( \frac{1-5y}{7} \right)-7y=22\implies \cfrac{10y-2}{7}-7y=22
\\\\\\
\textit{now, let's multiply both sides by 7, to toss the denominator}
\\\\\\
7\left( \cfrac{10y-2}{7}-7y \right)=7(22)\implies 10y-2-49y=154
\\\\\\
-39y=156\implies y=\cfrac{154}{-39}\implies \boxed{y=-4}
\\\\\\
\textit{now, let's use that in the \underline{first one}}
\\\\\\
-2x-7(-4)=22\implies -2x+28=22\implies 6=2x\implies \cfrac{6}{2}=x
\\\\\\
\boxed{3=x}$

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3 years ago

Simplify the expression. ( 5 x 2 − 3 x ) − ( 5 x 2 − 3 x + 1 )

iren [92.7K]

Answer:

-1

Step-by-step explanation:

Following PEMDAS The answer equals to -1

*plssss make me brainlist*

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Question 9 (5 points)

ElenaW [278]

Answer:

The Answer is $4 or option (A)

Step-by-step explanation:

I took the test :)

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3 years ago