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brilliants [131]

2 years ago

6

What other expression(s) is/are equivalent to -10 + 4?Choose all that apply.A. -10 + (-4)B. 10 -(-4)C. -10 -(-4)D. -10 –4

1 answer:

Dennis_Churaev [7]2 years ago

5 0

Answer is C

Hope this helps :D

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If 6 out of 30 people over the age of 100 are male, how many are female

RoseWind [281]

The remainder of the thirty once you remove the 6 who are male.
30-6=24..

5 0

2 years ago

Charlie's garage has a rectangular floor space. Its length is 3 times its width. Charlie extends the width of his garage to 6 m,

MAXImum [283]

Answer:

The percentage change is 140%

Step-by-step explanation:

Given

$L= 3W_1$ ---- initial dimension

$W_2 = 6m$ --- new width

$A_2 = 45m^2$ --- new dimension

Required

The percentage increment

The length remains constant because only the width is extended.

The new area is:

$Area =Length * Width$

$A_2=L * W_2$

Make L the subject

$L = \frac{A_2}{ W_2}$

Substitute values for A and W

$L = \frac{45m^2}{6m}$

$L = \frac{45m}{6}$

$L = 7.5m$ --- this is the length of the garden

Calculate the initial width:

$L= 3W_1$

Make W1 the subject

$W_1 = \frac{1}{3} * L$

$W_1 = \frac{1}{3} * 7.5$

$W_1 = 2.5$

So, the initial area is:

$A_1 = L_1 * W_1$

$A_1 = 2.5 * 7.5$

$A_1 = 18.75$

The percentage change in area is:

$\%A = \frac{A_2 - A_1}{A_1}$

$\%A = \frac{45 - 18.75}{18.75}$

$\%A = \frac{26.25}{18.75}$

$\%A = 1.4$

Express as percentage

$\%A = 1.4*100\%$

$\%A = 140\%$

4 0

2 years ago

Help please !!!!!!!!!!!

morpeh [17]

Answer:

The third one is the answer

Step-by-step explanation:

the first number shows the distance along, and the second number shows the distance up or down. Begin at the point and follow a vertical line either up or down to the x-axis. There is your x-coordinate

8 0

2 years ago

What is negative square root 1.69

Vadim26 [7]

Your answer would be -1.3

6 0

2 years ago

Read 2 more answers

The finishing times, in minutes, for running marathons have an unknown distribution with mean 297 and standard deviation 32 minu

dangina [55]

Answer:

The mean for the sample mean distribution is 297 minutes.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , a large sample size can be approximated to a normal distribution with mean $\mu$ and standard deviation $\frac{\sigma}{\sqrt{n}}$ .

Using the Central Limit Theorem for Means, what is the mean for the sample mean distribution?

The mean is the same as the population mean, that is, 297 minutes.

7 0

3 years ago