All categories

3 years ago

90 POINTS! PLEASE HELP!

Mathematics

2 answers:

Anuta_ua [19.1K]3 years ago

7 0

x=-4 hope it helps! good luck

Sliva [168]3 years ago

3 0

Answer:

yay

Step-by-step explanation:

You might be interested in

Math problem giving brainlist and 15 points

zaharov [31]

Answer:

pic is block

Step-by-step explanation:

4 0

4 years ago

Solve the equation. 7-4(2w + 1) = 9w-49+ w) EEE. W= (Simplify your answer.)

tatiyna

$7 - 4(2w + 1) = 9w - 49 + w \\ 7 - 8w - 4 = 10w - 49 \\ 10w + 8w = 7 - 4 + 49 \\ 18w = 52 \\ w = \frac{52}{18} \\ w= 2.88$

I hope I helped you^_^

8 0

3 years ago

4) A (3,6) B (7,2) what is the bisector

xxMikexx [17]

The bisector should be (5,4)

4 0

3 years ago

a random sample of n=24 data from a normal distribution with unkown variance produced x=42.5 and s=26 what is the 95 confidence

iogann1982 [59]

Answer:

95% of confidence intervals are

(31.5215 , 53.4785)

Step-by-step explanation:

Explanation:-

Given sample size 'n' =24

Mean of the sample x⁻ = 42.5

Standard deviation of the sample 'S' = 26

95% of confidence intervals are determined by

$(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} + t_{0.05} \frac{S}{\sqrt{n} })$

Degrees of freedom

ν =n-1 = 24-1 =23

$t_{0.05} = 2.0686$

95% of confidence intervals are

$(42.5 - 2.0686 \frac{26}{\sqrt{24} } , 42.5+ 2.0686 \frac{26}{\sqrt{24} })$

( 42.5 -10.9785 ,42.5 +10.9785)

(31.5215 , 53.4785)

3 0

3 years ago

Kailey plays video games for x hours a month. Trent plays video games four hours more than Kylie and Megan plays two times more

Mazyrski [523]

Answer:

8 + 2x

Step-by-step explanation:

Given that :

Kyle's game time = x

Trent's game time = 4 hours more than Kylie = 4 + x

Megan's game time = 2 times more than Trent ; this equals ; 2 * (4 + x) = 2(4 + x) = 8 + 2x

7 0

3 years ago