All categories

3 years ago

What is the value of X?

Mathematics

2 answers:

musickatia [10]3 years ago

8 0

(1) x + 2y = 4

<span>(2) 5x + y + 15 = 3x - 3y + 23</span>

zhenek [66]3 years ago

7 0

Tough sorry wish I could help u can’t too hard but I think it is equivalent to the other triangle so I think it’s 31? I THINK

You might be interested in

What is the image of (-8,6) after a translation over the line y=-x

stira [4]

Answer:

(-6, 8)

Step-by-step explanation:

(x, y) --> (-y, -x)

(-8, 6) --> (-6, 8)

Therefore, (-6, 8)

I hope this helped and have a good rest of your day!

8 0

3 years ago

Help again for more points

daser333 [38]

Answer:

F) 1,325.4 in.

:D:D:D:D

4 0

3 years ago

16=5a+a<br> Helppp please

Nostrana [21]

A=8/3

5a+a= 6a

16/6a= 8/3

3 0

3 years ago

Please help its for a test and this is the only question im stuck on Tysm and have a great day.c:

Sonja [21]

Answer:

77.28

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Given a population mean of 53.7 with a standard deviation of 1.3 and a sample size

a_sh-v [17]

Answer: A. 0.4899 B. 14

Step-by-step explanation:

If X = random variable

then, the standard deviation of the sampling distribution of X = $\dfrac{\sigma}{\sqrt{n}}$

GIven: $\sigma= 1.2, \n= 6$

The standard deviation of the sampling distribution of X = $\dfrac{1.2}{\sqrt{6}}=0.4899$

B. Let n be the sample size,

$0.325=\dfrac{1.2}{\sqrt{n}}\\\\\Rightarrow\ \sqrt{n}=\dfrac{1.2}{0.325}\\\\\Rightarrow\ \sqrt{n}=3.69230769231\\\\\Rightarrow\ n= (3.69230769231)^2=13.6331360947\approx 14$

Hence, the required sample size = 14

3 0

2 years ago