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Assoli18 [71]
3 years ago
6

9th grade math please help

Mathematics
1 answer:
Leni [432]3 years ago
6 0

Answer:

Only:

B. x=7

D. x=0

Step-by-step explanation:

Substitute the answers in the formula and only 7 and 0 will work.

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3 0
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Please Solve for 3 of them
Furkat [3]

Answer:

13.  b.  4 + 5x = 29; $5.

14.  c.  74 + w = 3w + 6; 34 pounds.

15.  b.  $42.5.

Step-by-step explanation:

13. 4 + 5x = 29

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7 0
3 years ago
Anyone know how to do this?
lesya [120]

<u>To solve this, we need to use our trignometric functions</u>;

   ⇒ <em>look at the diagram attached</em>

<em />

<u>Let's examine what the problem wants</u>:

  • hypotenuse (<em>longest side)</em> of the triangle

<u>Let's examine what the problem gives us</u>:

  • side adjacent to the 45-degree angle
  • angle that has measure of 45-degrees

<u>Let's solve</u>:

   sin(45)=\frac{5}{x} \\5=x*sin(45)\\x = \frac{5}{sin(45)} \\x=7.07

<u>Answer: 7.1</u> (<em>rounded to nearest tenth)</em>

<em />

Hope that helps!

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2 years ago
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It means in one hour, the rocket travels

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2.8*10^4 *5 = 14*10^4 = 1.4* 10^5 km

8 0
3 years ago
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