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2 years ago

Easy 15 points answer image

Mathematics

1 answer:

prohojiy [21]2 years ago

5 0

Answer:

(x+4)....................

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By what number would you multiply to solve 4/5 t = 36

mihalych1998 [28]

Answer:

Step-by-step explanation:

4/5 t = 36

Divide both sides by 4/5

4/5 / 4/5 t = 36/4/5

4/5 cancels 4/5

Also flip the divisor 4/5

t = 36x5 / 4

= 180/4

= 45

3 0

3 years ago

write quadratic equation whose roots are 4 and -3 and whose leading coefficient is 5 use the letter X to represent the variable

AlladinOne [14]

$5(x-4)(x+3)=\\
5(x^2+3x-4x-12)=\\
5(x^2-x-12)=\\
5x^2-5x-60$

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3 years ago

How many solutions does the nonlinear system of equations graphed below have?

saul85 [17]

Answer D zero there no solution

4 0

2 years ago

Read 2 more answers

Please help ASAP!!!!!

HACTEHA [7]

It’s D, y = 4.
have a good day :)

6 0

3 years ago

Read 2 more answers

In a survey of 603 adults, 98 said that they regularly lie to people conducting surveys. Create a 99% confidence interval for th

marysya [2.9K]

Answer:

The population proportion is estimated to be with 99% confidence within the interval (0.1238, 0.2012).

Step-by-step explanation:

The formula for estimating the population proportion by a confidence interval is given by:

$\hat{p}\pm z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}$

Where:

$\hat{p}$ is the sample's proportion of success, which in this case is the people that regularly lie during surveys,

$z_{\alpha /2}$ is the critical value needed to find the tails of distribution related to the confidence level,

$n$ is the sample's size.

<u>First</u> we compute the $\hat{p}$ value:

$\hat{p}=\frac{successes}{n}=\frac{98}{603}=0.1625$

<u>Next</u> we find the z-score at any z-distribution table or app (in this case i've used StatKey):

$z_{\alpha /2}=2.576$

Now we can replace in the formula with the obtained values to compute the confidence interval:

$\hat{p}\pm z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}=0.1625\pm 2.576\times\sqrt{\frac{0.1625\times(1-0.1625)}{603}}=(0.1238, 0.2012)$

5 0

3 years ago