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2 years ago

The difference of a number x and 1/2

Mathematics

1 answer:

blondinia [14]2 years ago

4 0

X is the answer and one half is part of the answer

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The value of y is directly proportional to the value of x. Given y = 25 when x = 150.

Tcecarenko [31]

Answer:

please mark as brainlist answers

8 0

2 years ago

Read 2 more answers

Based on the pattern shown, what is 46? 41 = 4 42 = 16 43 - 64

Tomtit [17]

Answer: 44 equals 128

Step-by-step explanation: This is because you do 16 times 4 to get 64, then you double that to 8, so you do 16 times 8 and get your answer 128

HOPE IM RIGHT!

8 0

3 years ago

Walter pays $2.53 to ship a package

Ivan

Answer:

what is the rest of the equation?

Step-by-step explanation:

7 0

2 years ago

Test the claim that the proportion of people who own cats is larger than 40% at the 0.025 significance level. The null and alter

Alecsey [184]

Answer:

H 0 : p ≤ 0.4 H a : p > 0.4

And based on the alternative hypothesis we can conclude that we have a right tailed test

Step-by-step explanation:

Data given

n=300 represent the random sample size

$\hat p=0.45$ estimated proportion of people with cats

$p_o=0.40$ is the value that we want to test

$\alpha=0.025$ represent the significance level

z would represent the statistic

$p_v$ represent the p value

Null and alternative hypothesis

We want to test if the true proportion of people with cats is higher than 0.4, so then the best alternative is:

Null hypothesis: $p\leq 0.4$

Alternative hypothesis: $p > 0.4$

H 0 : p ≤ 0.4 H a : p > 0.4

And based on the alternative hypothesis we can conclude that we have a right tailed test

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.45 -0.4}{\sqrt{\frac{0.4(1-0.4)}{300}}}=1.768$

5 0

2 years ago

Which expression is equivalent to 5y^3 over (5y)-^2

Flura [38]

Answer:

$125y^5$

Step-by-step explanation:

$\mathrm{Factor}\:\left(5y\right)^{-2}:\quad 5^{-2}y^{-2}$

$\mathrm{Cancel\:}\frac{5y^3}{5^{-2}y^{-2}}:\quad 5^3y^5$ $=5^3y^5$

$5^3=125$

Hope this helps!!!

3 0

2 years ago