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3 years ago

Solve for x. x= ____

Mathematics

1 answer:

Alika [10]3 years ago

6 0

Maybe 193*? ((A^2)+(B^2))=C^2 so, (160^2)+(180^2)=37264....the square root of 37264 is rounded off to 193

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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 .

4 0

3 years ago

What is the simplified value of the expression below? 8.5+(12+4)x2-7

Lilit [14]

B. 33.5 is your answer
First you want to add 12+4 because it is in parentheses
8.5+16x2-7
Then you multiply 16 by 2
8.5+32-7
Then you add 8.5 to 32
40.5-7
Then you subtract 7 from 40.5 giving you your answer
33.5

7 0

3 years ago

Read 2 more answers

In the number 3,394,143 the 4 in the tens place is (blank) the value of the 4 in the thousands place.

cluponka [151]

it is 0.01 times the value because it is a hundreds time smaller than the other four.

5 0

3 years ago

Answer these two and get marked as barinliest!!!

pashok25 [27]

First one is $16 and the second is $276.25

4 0

2 years ago

Read 2 more answers

I need the answer please I don't know it

Vlad1618 [11]

Basically the question is asking you for the area of the triangle.
The formula to find the area of a triangle is base x height divided by 2.
So in this case you would do 27 x 15.5 = 418.5
Now you divide by 2 (209.25)
So the answer is D. Hope this helps!!

6 0

3 years ago