2 years ago

Z2 - (y = 7, and z=10

Mathematics

1 answer:

Lyrx [107]2 years ago

7 0

Answer:

Step-by-step explanation:

You might be interested in

Solve the linear equation for x. –4.8(6.3x – 4.18) = –58.56

Mamont248 [21]

X=2.6

step by step explanation:

4 0

2 years ago

Find the equation of the line through the point (-2,-2) that is perpendicular to the line y=2x-1

Lerok [7]

A line perpendicular to y = 2x - 1 must have the slope -1/2 (negative reciprocal of 2).

Thus, the eq'n of the new line is y+2 = (-1/2)(x+2).

5 0

2 years ago

A simple random sample of 20 third-grade children from a certain school district is selected, and each is given a test to measur

ICE Princess25 [194]

Answer:

Option C) 5.62 points

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 20

Sample mean score = 64

Sample standard deviation, s = 12

Degree of freedom =

$=n-1\\=20-1\\=19$

We have to calculate margin of error for a 95% confidence interval.

Formula for margin of error:

$t_{critical}\times \displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.05} = \pm 2.093$

$2.093\times (\displaystyle\frac{12}{\sqrt{20}} )\\\\ =5.6161\approx 5.62$

Thus, the correct answer is

Option C) 5.62 points

4 0

3 years ago

Hafya measured the length of her room and found it was 4.5 yards long. About how many meters is the length of her room?

bezimeni [28]

Answer:

4.5

Step-by-step explanation:

1 yard = about 1 meter

8 0

2 years ago

Read 2 more answers

What is 6 over 9 and 11 over 88

TEA [102]

Answer:

6 over 9 = 6/9 11 over 88 = 11/88 6/9 = 0.6667(repeating) 11/88 = 0.125

P.S. Dont fall for those link scams! ;)

Hope this helped! If it did, please give me brainliest! It would help a lot! Thanks! :D

5 0

2 years ago

Z2 - (y = 7, and z=10​

Z2 - (y = 7, and z=10