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gogolik [260]
3 years ago
9

11+4 (x+7) 2nd power when x=2

Mathematics
2 answers:
monitta3 years ago
6 0
<span>11+4 (x+7)^2
Substitue 2 for x
</span><span>11+4 (2+7)^2
Multiply the numbers inside of the parenthesis by the exponent
11+4 (4+49)
Add 4 to 59
11+4 (54)
Add 4 to 11
15(54)
Multiply
Final Answer: 810</span>
Svetllana [295]3 years ago
5 0
First you follow PEMDAS, doing the parentheses first. Inside the parenthesis, there is 9. 9^2 is 81. Then you multiply 15 by 81, and you get 1215. Final answer 1215
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Orlov [11]
First let’s express the total number of marbles as such:
y(yellow marbles) + r(red marbles)=23; y+r=23

now let’s express the relation of yellow marbles to red marbles:
y=2r(2 times red marbles) - 4(4 less marbles); y=2r-4

since we figured out what y equals, we can plug into the first equation we created:
(2r-4)+r=23

now solve for r:
2r-4+r=23
combine like terms
3r-4=23
add 4 to both sides
3r=27
divide both side by 3
r=9

plug r back into first equation and solve for y:
y+9=23
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y=14

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3 years ago
in triangle TVY the measure of angle T is 20 The measure of angle V is 25 The measure of angle W Is 135 what is combined measure
Akimi4 [234]

Answer:

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Step-by-step explanation:

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3 years ago
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Alika [10]
<span>✡ Answer: 9000 </span><span>✡

- - Solve:

If your 3 numbers to the right (in this problem its 3) are 499 or less, you round down, if its 500 or up, you round up.

In this case, round up.

- - Solve furthermore:
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</span>
✡Hope this helps<span>✡</span>
4 0
3 years ago
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Law Incorporation [45]

Answer:

B. 11

Step-by-step explanation:

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