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Nitella [24]
3 years ago
8

Select ALL the correct answers. Select all of the equations with a solution

Mathematics
1 answer:
DedPeter [7]3 years ago
4 0

Answer:

B, C

Step-by-step explanation:

Plug in the x value for each x, and solve. Make sure that the two sides are equal to one another before verifying that it is true.

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Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.
makkiz [27]

Let

x------> the number of multiple choice question

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we know that

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-----> equation B

Substitute equation B in equation A

Find the value of x

therefore

the answer is

the number of multiple choice question are

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3 0
2 years ago
WILL GIVE BRAINLIEST
cricket20 [7]

Answer:(–4.5, –2.5)

(4.5, 6)

(1.3, 3.5)

Step-by-step explanation:

6 0
3 years ago
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10. Given a = 7, b = 6, and c = 10, use the Law of Cosines to solve for A. Round your answer to the nearest degree.
tia_tia [17]

Answer:

10) 44° (nearest degree)

11) 136.6 units² (nearest tenth)

12) 47.8 units² (nearest tenth)

Step-by-step explanation:

Please see the attached pictures for the full solution.

6 0
3 years ago
Cos x = sin 34°<br> What is the value of x?<br> Enter your answer in the box.
vredina [299]

\bf \textit{Cofunction Identities} \\\\ sin\left(90^o-\theta\right)=cos(\theta) \qquad cos\left(90^o-\theta\right)=sin(\theta) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ cos(x)=\stackrel{90-56}{sin(\stackrel{\downarrow }{34^o})}\implies cos(\stackrel{\downarrow }{x})=sin(90^o-\stackrel{\downarrow }{56^o})\implies cos(56^o)

3 0
3 years ago
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2. Which of the following is frue about the solution to the system of equations below? 2x + 4y = 9 2x + 4y = -9 A. The system ha
Lubov Fominskaja [6]

Answer:

Step-by-step explanation:

B. The system has infinitely many solutions. The system has one solution.

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2 years ago
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