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yawa3891 [41]
4 years ago
8

What is the answer to 6-(2x)​

Mathematics
1 answer:
katovenus [111]4 years ago
3 0

Answer: -2(x-3)

Step-by-step explanation:

  • Rewrite 6 as 2 x 3
  • Factor out common term -2
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The mean height of the students in Marta's class is 60 in. There are 18 students in her class. Write and Solve and equation to f
Mashcka [7]

Solution: Let x be the height of a student in Marta's class.

The mean height of 18 students in Marta's class is 60 inches

We know that:

Mean = \frac{\sum x_{i}}{n}

60 = \frac{\sum x_{i}}{18}

60 \times 18 = \sum x_{i}

\sum x_{i} = 1080

Therefore, the total measure of all 18 student's heights is 1080 inches


6 0
3 years ago
Bob says that he can find the area of the triangle below using the formula: A = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D
Goryan [66]

Answer:

No.

Step-by-step explanation:

No, Bob is not correct.

The formula he's using is the following:

A=\frac{1}{2} ab\sin(C)

The important thing here is that the angle is between the two sides.

In the given triangle, 120 is not between 8 and 18. Therefore, using this formula will not be valid.

Either Bob needs to find the other side first or find the angle between 8 and 18.

8 0
3 years ago
Please help, im literally so lost
Helen [10]

Answer:

RP = 2.3

PQ = 1.0

RQ = 2.3

Step-by-step explanation:

The pictures says RP = RQ,

so:

3x - 0.4 = x + 1.4

this you can simplify to:

x = 0.9

Then fill x in:

RP = 3*0.9 - 0.4 = 2.3

PQ = 0.9 + 0.1 = 1.0

RQ = 2.3

8 0
3 years ago
What is the perimeter?
aev [14]

Answer:

38

Step-by-step explanation:

9²+10² = 38

5 0
3 years ago
2 runners are racing against other. Jeri graphs a equation for each runner that shows the runner's distance from the starting li
Basile [38]

Answer:

b

Step-by-step explanation:

4 0
2 years ago
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