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2 years ago

Help please I’ll mark brainliest

Mathematics

2 answers:

Finger [1]2 years ago

8 0

No because you can’t divide the numerator by the same number as the denominator and get the same thing
if you divide the denominator by 2 you get the second denominator

for the numerator...you can’t divide that by 2 so it isn’t proportional

yanalaym [24]2 years ago

5 0

Answer:

Cross multiply:

7x4=8x2

Simplify:7*4=2*8

Multiply 7*4:

28=8*2

Multiply:8*2

28=16

Solving 28=16

4:4

Step-by-step explanation:

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Suppose the U. S. president wants an estimate of the proportion of the population who support his current policy toward revision

xxMikexx [17]

Answer:

Step-by-step explanation:

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8 0

2 years ago

The profits of life insurance companies A and B are normally distributed with the same mean. The variance of company B's profit

Lerok [7]

Answer:

23.58-th

Step-by-step explanation:

The standard deviation of company B's profit is:

$\sigma_B=\sqrt{2.25}\sigma_A$

Let X be the profit correspondent to the 14th percentile of company A's profit.

The z-score for 14th percentile of a normal distribution is roughly -1.08.

The z-scores for X in companies A and B are:

$-1.08 = \frac{X-\mu}{\sigma_a} \\z_B = \frac{X-\mu}{\sqrt{2.25}*\sigma_a}\\z_B=\frac{-1.08}{\sqrt{2.25}}\\z_B = -0.72$

The z-score for X in company B's profit distribution is -0.72, which corresponds to the 23.58-th percentile.

8 0

2 years ago

10. angle GHI is an isosceles triangle with GI HI. IF GH is three more than x, HI is 17 less than four

svp [43]

Answer:

GH = 17 units

GI = 39 units

HI = 39 units

Step-by-step explanation:

We are given the following information in the question:

Triangle GHI is an isosceles triangle.

$GI = HI$

The measures of side are:

$GH = 3 + x\\HI = 4x-17\\GI = 6x - 45$

It is given that

GI = HI

$4x - 17 = 6x -45\\6x - 4x = 45-17\\2x = 28\\x = 14$

Thus, the measures of three sides are:

$GH = 3 + x=14+3 = 17\\HI = 4x-17 = 4(14)-17 = 39\\GI = 6x - 45=6(14) - 45 = 39$

7 0

3 years ago

Find the slope of the line 8x – 4y = 8\ (hint: find 2 points; then use the slope formula)

vodka [1.7K]

Or you can do the easy way

convert to slope intercept
y=mx+b
m=slope

get 1y all by itself

8x-4y=8
minus 8x both sides
-4y=-8x+8
divide both sides by -4
y=2x-2
y=mx+b
slope is 2

the hack way is
for an equatoin in standard form
ax+by=c
slope=-a/b

slope=2

if you want to graph 2 points and do it the long way, here it is
if x=0, y=-2
if y=0, x=1
(0,-2) and (1,0)
slope=(y2-y1)/(x2-x1)
slope=(0-(-2))/(1-0)=2/1=2

slope is 2

8 0

3 years ago

Which statement compares the shape of the dot plots?

Alex

Answer: C - Only the fifth-grade data points are distributed fairly evenly.

Step-by-step explanation: Just took the test and that is the right anwser.

6 0

2 years ago

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