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solmaris [256]
4 years ago
13

What is the value of x A. 20 B. 34 C. 60 D. 69

Mathematics
1 answer:
Grace [21]4 years ago
4 0

Answer:

A

Step-by-step explanation:

The given angles are vertical and thus congruent, so

3x = x + 40 ( subtract x from both sides )

2x = 40 ( divide both sides by 2 )

x = 20 → A

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What is the solution of sqrt2x+4=15
melomori [17]

Answer:

x = 126

Step-by-step explanation:

Square both sides of the equation. (sqrt2x+4)^2 = 16^2

2x+4 = 256

Then you should solve for x. (First Subtract 4 from both sides; Then simplify; Next divide both sides by 2; Finally, simplify once more)

This should give you your answer. (x = 126)

Hope this helps! ^-^

7 0
3 years ago
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Subtract. Write your answer using scientific notation
denis-greek [22]

Answer: The correct answer is D

8.4282 * 10⁸

Step-by-step explanation:

(8.47 * 10⁸) - ( 4.18 * 10⁶)

= (8.47 * 10⁸) - (0.0418 * 10⁸)

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8 0
3 years ago
20z-8 please helpppp
Anika [276]

Answer:  4(5z−2)

Step-by-step explanation: Brainliest pls

3 0
3 years ago
Which system of equations can be graphed to find the soultion(s) to x^2=2x+3
Elanso [62]

Answer:

\left \{ {{y=x^2} \atop {y=2x+3}} \right.

Step-by-step explanation:

The system would be:

\left \{ {{y=x^2} \atop {y=2x+3}} \right.

And I attached the graph. The system will have 2 solution (The 2 intercepts between the curves)

3 0
4 years ago
What is the next odd number after 160 to which 9 would divide without a reminder
ale4655 [162]
Ok so one way is to list the multiplues of 9 close to thtat
first use a caltulator to find out how much more we need
160/9=17.777777
that is 17.7777 nine's
so round up
18
18 is even
odd times even=even
18 must be odd
18+1=19
9 times 19=171
the answer is 171
7 0
3 years ago
Read 2 more answers
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