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tiny-mole [99]
3 years ago
10

A number is added to 13. The result is then multiplied by 2 to give a new result of 52. What is the number ?

Mathematics
1 answer:
Andreyy893 years ago
5 0

Hi, so I first I divided 52 by 2 and ended up with 26. 26-13 is 13.

The answer is 13

Check my work 13+13 =26

26 times 2 is 52

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-3x^2 + 2y^2 + 5xy - 2y + 5x^2 - 3y^2<br><br> x = 2 , y = -1
rewona [7]
X=2 Y=-1 plug them into the equation
-3(2)^2 + 2(-1)^2 + 5(2)(-1) -2(-1) + 5(2)^2 -3(-1)^2

36+4-10+2+100+9

40-10+2+100+9

30+2+100+9

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141
5 0
3 years ago
If seven times a number is added to the squares of the number and the result is negative twelve, what are the numbers?
AleksAgata [21]
Let's name the number 'n'. Now write an equation. 7*n +n^2 =12Now you can form a quadratic. n^2 +7n-12=0. Now you can use a myriad of methods to solve it. If you still need help, just message me. 
6 0
3 years ago
How to factor -2 out of -6x+10
KIM [24]
Just divide -6x+10 by -2 and take out what's common.

-6x divided by -2 would be 3x.
10 divided by -2 would be -5.

So the answer is -2(3x-5).

\sf\ Answer: -2(3x-5)
5 0
3 years ago
Tylique ate 1/2 of a pizza. His friend Connor ate the same amount of a same-sized pizza. Connor’s pizza was cut into 10 slices.
arlik [135]

Answer:

5

Step-by-step explanation:

10*1/2=5

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3 0
3 years ago
Find the tangent of ∠I.
Nady [450]

Answer:

tanI = \frac{\sqrt{70} }{5}

Step-by-step explanation:

We require to calculate GH using Pythagoras' identity in the right triangle.

GH² + GI² = HI²

GH² + 5² = (\sqrt{95} )²

GH² + 25 = 95 ( subtract 25 from both sides )

GH² = 70 ( take square root of both sides )

GH = \sqrt{70}

Then

tanI = \frac{opposite}{adjacent} = \frac{GH}{GI} = \frac{\sqrt{70} }{5}

4 0
2 years ago
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