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zvonat [6]
3 years ago
10

Which value of x makes this equation true? -12– 2(x+ 9) = 5(x + 4)

Mathematics
2 answers:
Virty [35]3 years ago
8 0

Answer:

x = -50/7

Step-by-step explanation:

telo118 [61]3 years ago
6 0

Answer:

The value of x that makes the equation true is -50/7

Step-by-step explanation:

-12 - 2(x+9) =5(x+4)

-12 - 2x - 18 =5x + 20

- 2x -12-18 = 5x + 20

-2x - 30 =5x + 20

-2x - 5x = 20+ 30

-7x = 50

x = 50/-7

x = -50/7

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3 years ago
Using suitable identity evaluate the following : 98^3
stiv31 [10]

941,192

Steps:

(a-b)^3=a^3-b^3-3a^2b+3ab

\begin{gathered} (98)^3=(100-2)^3 \\ (100-2)^{3\text{ }}=(100)^3-(2)^3-3\cdot(100)^2\cdot2+3\cdot100\cdot2^2\text{ } \\ (100)^3-(2)^3-3\cdot(100)^2\cdot2+3\cdot100\cdot2^2\text{ = 1,0}00,000\text{ - 3 - 60,000 +1,200} \\ \text{ 1,0}00,000\text{ - 3 - 60,000 +1,200 = 941,192} \end{gathered}

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1 year ago
Last question for Jim Thompson Geometry homework
Luba_88 [7]
<h3>Answers:</h3>
  • Reason 1:  <u>Given</u>
  • Reason 3: <u>Similar because of SAS</u>

==============================================

Explanation:

At the top of the proof, your teacher states "Given" followed by the relevant useful info. We simply repeat that info word for word as statement 1. This is how all proofs start out. We start with what we're given and try to build toward what we want to prove.

So this is why <u>reason 1 is "given"</u>. Reason 2 is "given" also. When your teacher gives multiple statements like this, it's handy to break them up into the smallest pieces possible.

--------------------

<u>For reason 3, we use the SAS Similarity</u> rule here because we have congruent angles LPN and LNM (both 90 degrees each) and the sides are proportional due to the statement \frac{PN}{NM} = \frac{LP}{LN}

Notice how statement 3 builds entirely off from what statements 1 and 2 set up.

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Step-by-step explanation:

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Answer:

The answer is B

Step-by-step explanation:

Hope this helps

8 0
2 years ago
Read 2 more answers
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