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Dmitry [639]
3 years ago
10

Which point on the number line represents Negative three-fourths? A number line going from negative 2 to positive 1 in increment

s of 1. There are 4 equal spaces between each number. Point A is 1 mark to the right of negative 2. Point B is 1 mark to the right of negative 1. Point C is 1 mark to the left of 0. Point D is 1 mark to the left of 1. A B C D
Mathematics
2 answers:
elena-s [515]3 years ago
7 0

Answer:

A, D, E

Step-by-step explanation:

trust me.

solong [7]3 years ago
5 0

Point B . 1 Mark to the right of negative 1

Step-by-step explanation:

The given number line starts from negative 2 to positive 1 in increments of 1.

Hence the four main divisions represent negative 2, negative 1 0 and positive 1

Also there are 4 equal spaces between each number. Hence each sub division between each number represents a quarter.

Point A is 1 mark to the right of negative 2. This would represent the number negative one and three quarter.  

Point B is 1 mark to the right of negative 1. This would represent the number negative three quarter.

Point C is 1 mark to the left of 0. This would represent the number negative one quarter.

Point D is 1 mark to the left of  1. This would represent the number positive three quarter.

Point B representing 1 mark to the right of negative 1 is the answer as it is equal to negative three quarter.

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Traveling with the current a certain boat went 16km/h. Against the same current it only went 6km/h. Find the current and the spe
Aloiza [94]

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b and c are the speeds of the boat in stool water, and current, respectively.

Going with the current, the boat travels b+c=16 km/h.

Going against the current, the boat travels b-c=6 km/h

add the equations together

b+c = 16

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4 0
3 years ago
In a population distribution, a score of x=57 corresponds to z=-0.25 and a score of x=87 corresponds to z=1.25. Find the mean an
Serggg [28]

Here is dependence between scores and x-values:

Z_i=\dfrac{X_i-\mu}{\sigma},

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1. When i=1, Z_1=-0.25,\ X_1=57, then

-0.25=\dfrac{57-\mu}{\sigma}.

2. When i=2, Z_2=1.25,\ X_2=87, then

1.25=\dfrac{87-\mu}{\sigma}.

Now solve the system of equations:

\left\{\begin{array}{l}-0.25=\dfrac{57-\mu}{\sigma}\\ \\1.25=\dfrac{87-\mu}{\sigma}.\end{array}\right.

\left\{\begin{array}{l}-0.25\sigma=57-\mu\\ \\1.25\sigma=87-\mu.\end{array}\right.

Subtract first equation from the second:

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Answer: the mean is 62, the standard deviation is 20.

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<em><u>Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!!</u></em>

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