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Jobisdone [24]
3 years ago
11

Can someone help me please i don’t understand it i really need too finish it by tonight

Mathematics
1 answer:
guajiro [1.7K]3 years ago
6 0

Don't mind me, I just need points haha

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Need help please explain w answer if you can.
uranmaximum [27]
Start by looking at the components of the line, basically the legs if you were to make it a right triangle.
components = < x1 - x2,  y1 - y2 >
< 10-5 , 12-4 > = < 5 , 8 >
So the line starts at A and goes right 5 then up 8 to point B.

We need a point 3:1 distance which means that if X is our new point, length AX is 3 times length of XB.

3+1 = 4 parts total
Point X will be 3/4 distance

3/4 the components
< 5(3/4) , 8(3/4) > = < 15/4 , 6 >
Add these to point A to go right and up to the new point X.

(5 + 15/4 , 4 + 6) = (35/4 , 10)
35/4 = 8 3/4
so the first one is correct.

7 0
3 years ago
Which phase best describes the transition from the graph y=2x^2 to the graph of y2x^2+5?
Gre4nikov [31]

Answer:

Anything after x determines if it goes up since it's a positive 5 it's 5 units up

8 0
3 years ago
In an accounting class of 200 students, the mean and standard deviation of scores was 70 and 5, respectively. Use the empirical
lina2011 [118]

Answer:

a. About 64

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 70

Standard deviation = 5

Use the empirical rule to determine the number of students who scored less than 65 or more than 75?

65 = 70 - 5

So 65 is one standard deviation below the mean

75 = 70 + 5

So 75 is one standard deviation above the mean.

By the Empirical Rule, 68% of the students scored between 65 and 75. The other 100-68 = 32% scored less than 65 or more than 75.

Out of 200, that is

0.32*200 = 64

So the correct answer is:

a. About 64

5 0
3 years ago
Show all work to multiply quantity 3 plus the square root of negative 16 end quantity times quantity 6 minus the square root of
Veseljchak [2.6K]

Plus means addition and square root means √

3 plus the square root of negative 16: 3 + √-16

Minus means subtraction and square root means √

6 minus the square root of negative 64: 6 - √-64

Its asking you to multiply both quantities.

(3 + √-16) * (6 - √-64)

Best of Luck!

6 0
3 years ago
Read 2 more answers
A rectangular garden has length twice as great as its width. A second rectangular garden has the same width as the first garden
stiks02 [169]
Use the information to write the dimensions of each rectangle in terms of w, the width of the 1st one.

1st rectangle;
l = 2w
w = 2

2nd rectangle:
w = w 
l = 2w + 4

If the area of the 2nd rectangle is 70 square meters, you will use the area formula to write an equation that you will solve using the factoring.

A = lw
70 = w(2w + 4)
70 = 2w^2 + 4w
0 = 2w^2 + 4w -70
0 = 2 (w^2 +2w - 35)
0 = 2 (w + 7) (w - 5)

To get zero, the width would need to be -7 or 5.  Because it is a distance, it has to be 5 meters.

The width of both rectangles is 5 meters.

6 0
3 years ago
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