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3 years ago

HELP ME PLS ASAP !!!!!!!!!!!!!

Mathematics

1 answer:

Anestetic [448]3 years ago

4 0

Answer:

-58

Step-by-step explanation:

Im pretty sure hope it helps

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Below is a grid with four quadrants. Plot the following points, and connect them with line segments. Point A (-2,-4). Point B (3

Lena [83]

Answer:

i think the answer is b

Step-by-step explanation:

6 0

4 years ago

a contractor was paving a driveway he mixed 4/7 ton lf sand and 1/3 ton of concrete how much did the mixture weigh

NeTakaya

Answer: 19/21

Step-by-step explanation: find the same multiple for both so you can combine them

8 0

3 years ago

If you roll a single six-sided die, what is the probability of rolling an odd number? A. 1/6 B. 1/3 C. 1/2 D. 3

Leviafan [203]

Answer:

1/2

Step-by-step explanation:

there are exactly 50-50 chances of you rolling an odd since the die goes up to 6. there are 3 odd numbers in a 6-sided die, that over 6 is equal to 1/2.

3 0

3 years ago

33. Suppose that the scores on a statewide standardized test are normally distributed with a mean of 78 and a standard deviation

tino4ka555 [31]

Given the scores on a statewide standardized test are normally distributed

Mean = μ = 78

Standard deviation = σ = 3

Normalize the data using the z-score by using the following formula and chart:

$z=\frac{x-\mu}{\sigma}$

Estimate the percentage of scores of the following cases:

(a) between 75 and 81

so, the z-score for the given numbers will be:

$\begin{gathered} 75\rightarrow z=\frac{75-78}{3}=\frac{-3}{3}=-1 \\ 81\rightarrow z=\frac{81-78}{3}=\frac{3}{3}=1 \end{gathered}$

As shown, the percentage when (-1 < z < 1) = 68%

(b) above 87

$87\rightarrow z=\frac{87-78}{3}=\frac{9}{3}=3$

The percentage when (z > 3) = 0.5%

(c) below 72

$72\rightarrow z=\frac{72-78}{3}=\frac{-6}{3}=-2$

The percentage when (z < -2) = 0.5 + 2 = 2.5%

(d) between 75 and 84

$\begin{gathered} 75\rightarrow z=\frac{75-78}{3}=-\frac{3}{3}=-1 \\ 84\rightarrow z=\frac{84-78}{3}=\frac{6}{3}=2 \end{gathered}$

The percentage when ( -1 < z < 2 ) = 68 + 13.5 = 81.5%

3 0

1 year ago

(4.6•10^9)+ (1.7•10^7)

Gennadij [26K]

Answer:

4617000000

Step-by-step explanation:

10^9 = 1000000000

1000000000 x 4.6 = 4600000000

10^7 = 10000000

10000000 x 1.7 = 17000000

4600000000 + 17000000 = 4617000000

6 0

3 years ago