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3 years ago

What is 10 times as much as 130

Mathematics

1 answer:

Rasek [7]3 years ago

5 0

10 times as much as 130 is 1300

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The diagonals of a parallelogram are perpendicular to each other. The perimeter of the parallelogram is 48 feet. Find the length

iVinArrow [24]

We know that a parallelogram has two pairs of congruent sides. If we know that the diagonals are perpendicular and the perimeter is 48 feet, we can solve is using the area of parraleogram formula: with that we get the answer of 5, and 9

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3 years ago

Public opinion in the large city of Bedrock is that 60 percent of the residents are in favor of increasing taxes to fund alterna

uysha [10]

Answer: 0.8461

Step-by-step explanation:

Let p be the proportion of residents are against the increase of taxes to fund alternatives to drug addiction treatment.

As per given , we have p=0.40

A random sample is taken with size : n= 400

Expecting sample proportion : $\hat{p}=\dfrac{150}{400}=0.375$

Now , the probability that more than 150 of the residents surveyed will be against increasing taxes if a random sample of 400 residents are surveyed will be :

$P(p>0.375)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.375-0.40}{\sqrt{\dfrac{0.40(0.60)}{400}}})$

$=P(z>\dfrac{0.375-0.40}{\sqrt{\dfrac{0.40(0.60)}{400}}})\ \ [\because\ z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}]$

$=P(z>-1.02)=P(z-z)=P(Z$

$\approx0.8461$ [By z-table]

Hence, the approximate probability that more than 150 of the residents surveyed will be against increasing taxes if a random sample of 400 residents are surveyed is 0.8461 .

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3 years ago

14. Molly puts two shapes together to make a new shape. The new shape has 6 sides and 6 vertices. Which two shapes did she use?

olganol [36]

She used two trapezoids.

She put one trapezoid on top and one on the bottom.

The shape she ends up making is a hexagon.

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3 years ago

Line CD contains points A (4, −7) and B (4, 8). The slope of line CD is

Fofino [41]

Answer:

Undefined

Step-by-step explanation:

Slope of CD

$= \frac{8 - ( - 7)}{4 - 4} = \frac{8 + 7}{0} = \infty \\$

Hence, Slope of CD is undefined.

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3 years ago

Help me plz I’ll give brainliest

gladu [14]

Answer:

It is the top left one

Step-by-step explanation:

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2 years ago