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gavmur [86]
3 years ago
14

-7(5-3x)=-35 what is the x in the problem

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0

Answer:

x = 0

Step-by-step explanation:

-7(5-3x)=-35

Divide by -7

-7/-7(5-3x)=-35/-7

5 -3x = 5

Subtract 5 from each side

5-3x-5 = 5-5

-3x=0

Divide by -3

x=0

givi [52]3 years ago
4 0

Answer: x = 0

Step-by-step explanation: Start by distributing the -7 through the parenthses on the left side of the equation.

-7(5) is -35 and -7(-3x) is 21x.

So we have -35 + 21x = -35.

Next, isolate the x term by adding 35 to both sides.

When we do this, we get 21x = 0.

Now divide both sides by 21 and <em>x = 0</em>.

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On a recent quiz, Jan got 48 questions correct out of 60. What percent did she get correct?
Maru [420]

Answer:

80%

Step-by-step explanation:

\frac{48}{60} =0.8=\\ 80%

Hope this helps!

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7 0
3 years ago
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What is the exact value of cos 112.5°?
ikadub [295]
We have 112.5 = 225/2; cos112.5 < 0 because 90 < 112.5 < 180;
cos 112.5 = cos(225/2);
We use the trigonometric formula: cos(x/2) = - \sqrt{ \frac{1+cosx}{2} };
Then, cos(225/2) = - \sqrt{ \frac{1+cos225}{2} };
We have the formula: cos(270 - x) = -sinx (because cos(a-b) = cosacosb + sinasinb);
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3 0
3 years ago
1)
LUCKY_DIMON [66]

Answer:

answer is .A

Step-by-step explanation:

8 0
3 years ago
Two solutions of the polynomial equation are given. Use synthetic division to find any remaining solutions.
liubo4ka [24]

Answer:

The remaining solutions are -7 and 3.

Step-by-step explanation:

The synthetic division is shown in the attachment. After dividing the first two found factors from the polynomial, the remaining quadratic is ...

x^2 +4x -21 = 0

Its rational roots will be factors of -21, and the sum of their opposites will be 4. Knowing that 21 = 3·7, we can guess that the remaining roots are -7 and 3. The synthetic division confirms that. (A graph also confirms it.)

8 0
3 years ago
Can someone help me with this problem
fredd [130]
So a triangle angles must add up to 180. You would subtract 180 by the two known angle which are 90 and 30. Then if you subtract them you would get 60. The final answer is 60
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3 years ago
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