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Setler [38]
3 years ago
9

Need help with these 2 problems on my homework.

Mathematics
1 answer:
poizon [28]3 years ago
4 0
4. 55 + 0.65*55 =  $90.75

5. 90.75 * 0.25*90.75 = $113.44

6. 113.44 - 0.33*113.44 = $76.00
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Hal forgot the number of people at the basketball game. He does remember that the number had four digits and a 3 in the tens pla
neonofarm [45]
He could be thinking of 5,637 people at the game
7 0
3 years ago
Answer please. If you answer, you get 44 points. I don't use the points here. So answer please. I want full work.
ra1l [238]

Answer: you simplfy the two equations already there then plug them in to find factors

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
In a recent survey, 10 percent of the participants rated Pepsi as being "concerned with my health." PepsiCo's response included
hichkok12 [17]

Answer:

The statistic for this case would be given by:

z=\frac{0.18 -0.1}{\sqrt{\frac{0.1(1-0.1)}{100}}}=2.67  

Step-by-step explanation:

Infromation provided

n=100 represent the random sample selected

X=18 represent the people who rates Pepsi as being "concerned with my health"

\hat p=\frac{18}{100}=0.18 estimated proportion of people who rates Pepsi as being "concerned with my health"

p_o=0.1 is the value that reference to compare

z would represent the statistic

Hypothesis to test

For this case we can assume that the interest is check if the proportion of people who rates Pepsi as being "concerned with my health" is equal to 0.1 or not , then the system of hypothesis are:

Null hypothesis:p=0.1  

Alternative hypothesis:p \neq 0.1  

The satistic for this one sample proportion test is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.18 -0.1}{\sqrt{\frac{0.1(1-0.1)}{100}}}=2.67  

7 0
3 years ago
Use distributive law to factor the given expression: 3+21a+15b
Reil [10]

Answer:

3(1+7a+5b)

Step-by-step explanation:

The distributive law states that

a\cdot (b+c)=a\cdot b+a\cdot c.

The expression 3+21a+15b consists of three terms:

  1. 3=3·1;
  2. 21a=3·7a;
  3. 15b=3·5b.

You can see that 3 is the common factor of these three terms, thus

3+21a+15b=3(1+7a+5b).

6 0
3 years ago
Sean needs to figure out how much paint he needs in order to cover all of the sides of his ramp. what is the surface area of the
Savatey [412]

Answer:

210

Step-by-step explanation:

find the area of each rectangle and add it to the area of both the triangles

9(6) +5(9) +9(7)+(6(8))/2 + (6(8))/2

4 0
3 years ago
Read 2 more answers
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