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2 years ago

HELPPPPPP ASAPPPPPPP!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Burka [1]2 years ago

4 0

Answer:

10(x+y)

Step-by-step explanation:

the sum is addition

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Rita ha decidido emprender un negocio de ventas de productos de protección personal, para lo cual tiene que inventir 1/3 de su d

d1i1m1o1n [39]

Answer:

3/10

Step-by-step explanation:

Subtract the sum of 1/3, 4/15 and 1/10 from 1:

10/30 + 8/30 + 3/30 = 21/30, or 7/10

Then: 1 - 7/10 = 3/10

6 0

3 years ago

PLEASE HELP PICTURE SHOWN CHECK ALL THAT APPLY

marusya05 [52]

To find the zeros set the factors on the numerator equal to zero and solve
(x - 1) = 0 x = 1
(x + 1) = 0 x = -1

5 0

3 years ago

A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c

allochka39001 [22]

Answer:

a) The test statistic is $z = -2.51$

b) The pvalue is 0.0060.

Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

$H_a: p_{B} - p_{NY} < 0$

While the null hypothesis is:

$H_0: p_{B} - p_{NY} = 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis and s is the standard error

pB = 0.581, pNY = 0.832

This means that $X = 0.581 - 0.832 = -0.251$

0 is tested at the null hypothesis:

This means that $\mu = 0$

Standard error = 0.1

This means that $s = 0.1$

Test statistic:

$z = \frac{X - \mu}{s}$

$z = \frac{-0.251 - 0}{0.1}$

$z = -2.51$

The test statistic is $z = -2.51$

Question b:

The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

The pvalue is 0.0060.

5 0

3 years ago

Which describes the slope of this line?

Artist 52 [7]

The slope of this line can be described as D. zero slope because there is no upward movement, so there is no slope, so it is zero.

Answer: D. zero slope

6 0

3 years ago

Read 2 more answers

You jogged 11 km at an average speed of 10 km per hour how long did you jog

Scilla [17]

1 hour and 6 minutes!

8 0

2 years ago