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3 years ago

X- (5-3x)<=2x-1 solve

Mathematics

1 answer:

kkurt [141]3 years ago

7 0

Answer:

x<=2

Step-by-step explanation:

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If the following fractions were converted to decimals, which one would result in a repeating decimal? A. 1/9 B. 3/4 C. 5/11 D. 3

Liono4ka [1.6K]

All of these fractions except $\frac{3}{4}$ become repeating decimals.

$\frac{1}{9}$ - 0.11111111....
$\frac{3}{4}$ - 0.75
$\frac{5}{11}$ - 0.454545454....
$\frac{3}{7}$ - 0.42857142857...

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4 years ago

Piper works at a camera store. He is paid an hourly rate 16% commission on everything he sells. One week, he is paid $365 for wo

ValentinkaMS [17]

Answer:

His hourly rate is B. $13.75

Step-by-step explanation:

7 0

3 years ago

The head circumference is measured for 25 girls and their younger twin sisters. The mean of the older twin girls was 50.23 cm an

frosja888 [35]

Answer:

Step-by-step explanation:

The data for the test are the differences between the head circumferences of the older twin girls and that of their sisters

μd = mean head circumferences of the older twin girls minus the mean head circumferences of the sisters

For the null hypothesis

H0: μd ≥ 0

For the alternative hypothesis

H1: μd < 0

It is a left tailed test

The distribution is a students t. Therefore, degree of freedom, df = n - 1 = 25 - 1 = 24

The formula for determining the test statistic is

t = (xd - μd)/(sd/√n)

Where

xd = difference in sample means

μd = difference in population means

sd = standard deviation of the difference

From the information given,

xd = 50.23 - 49.96 = 0.27

t = (0.27 - 0)/(1/√25)

t = 1.35

We would determine the probability value by using the t test calculator.

p = 0.095

Since alpha, 0.05 < than the p value, 0.095, then we would fail to reject the null hypothesis.

Therefore, at 5% significance level, the difference is not significant

8 0

3 years ago

8pq + 20qr – 16s factorise plz

Dafna1 [17]

Answer:

4(2qp + 5qr - 4s)

Step-by-step explanation:

8pq + 20qr – 16s

we can use 4 as a common factor between these numbers.

8/4 = 2

20/4 = 5

16/4 = 4

4(2qp + 5qr - 4s) is the most factorized answer we can get

8 0

3 years ago

MARKING BRAINIEST!! A wheelchair ramp is 10 feet long. the ramp sits up on a 2 foot platform. How far is it from the end of the

irina [24]

Answer:

The distance between the end of the ramp and the bottom of the platform is about 9.8 feet

Step-by-step explanation:

use the pythagorean theorem (a²+b²=c²) to solve

a and b are the legs, c is the hypotenuse

plug in given values:

2² + x² = 10²

solve for x:

x² + 4 = 100

x² = 96

x ≈ 9.80

4 0

3 years ago