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2 years ago

Six times the sum of nine and a number

Mathematics

2 answers:

shepuryov [24]2 years ago

6 0

Answer:

6(9+x)

Step-by-step explanation:

Zolol [24]2 years ago

5 0

Answer:

$6(x + 9)$

mmm it's according to me

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If x + 10 = 70, what is x? Α. 40 B. 50 C. 60 D. 70 E. 80

Helen [10]

Answer:

C.60

x + 10 = 70

x = 70 -10

x =60

4 0

2 years ago

Read 2 more answers

when you go to answer this, can someone please give me the steps on how to do it, because I think I'm doing it wrong

leva [86]

Answer:

TUA=123

Step-by-step explanation:

so first we find <TUS in terms of x

so 180-11x-2

178-11x

so now we can use the sum of a triangle's angles which is always 180 to find the angles in triangle TUS

178-11x+5x+10+58=180

178-6x=112

take 178 from both sides

-6x=-66

x=11

so we can do 11x11+2=TUA

TUA=123

6 0

2 years ago

3. Find the value of x. 4 3 6

tester [92]

Answer:

Step-by-step explanation:

x in (-oo:+oo)

(x/4)/3 = 6 // - 6

(x/4)/3-6 = 0

1/12*x-6 = 0 // + 6

1/12*x = 6 // : 1/12

x = 6/1/12

x = 72

5 0

2 years ago

Please help asap!! What is the measure of angle A?

ozzi

Answer:

Step-by-step explanation:

because it is vertically opposite angles

3 0

2 years ago

Construct the 95% confidence interval for the population mean using the appropriate distributions. a. A random sample of 50 peop

SSSSS [86.1K]

Answer: 95% confidence interval would be (26.01,29.39).

Step-by-step explanation:

Since we have given that

n = 50

Mean = 27.7

Standard deviation = 6.12

We need to construct 95% confidence interval for the population.

so, z = 1.96

So, it becomes,

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=27.7\pm 1.96\times \dfrac{6.12}{\sqrt{50}}\\\\=27.7 \pm 1.69\\\\=(27.7-1.69,27.7+1.69)\\\\=(26.01,29.39)$

Hence, 95% confidence interval would be (26.01,29.39).

4 0

3 years ago