1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melisa1 [442]
3 years ago
9

Any of these will help???? Please help me

Mathematics
1 answer:
alexandr402 [8]3 years ago
6 0
1= 70
2= 320
3= 50

I can't do the others I'm sorry but I hope that I helped
You might be interested in
Find the distance between (1, 4) and (-2, 0)
Vanyuwa [196]

Answer:

\boxed {d = 5}

Step-by-step explanation:

Use the <u>Distance Formula</u> to help you determine the distance between two given points:

d = \sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2}}

First point: (x_{1}, y_{1})

Second Point: (x_{2}, y_{2})

-Apply the two given points onto the formula:

First point: (1, 4)

Second point: (-2, 0)

d = \sqrt{(-2 - 1)^{2} + (0 - 4)^{2}}

-Solve for the distance:

d = \sqrt{(-2 - 1)^{2} + (0 - 4)^{2}}

d = \sqrt{(-3)^{2} + (-4)^{2}}

d = \sqrt{9 + 16}

d = \sqrt{25}

\boxed {d = 5}

Therefore, the distance is 5.

4 0
2 years ago
The test statistic of zequals2.32 is obtained when testing the claim that pgreater than0.3. a. Identify the hypothesis test as b
Sonja [21]

Answer:

a) We need to conduct a hypothesis in order to test the claim that the true proportion p is greatr than 0.3, so then the system of hypothesis are.:  

Null hypothesis:p \leq 0.3  

Alternative hypothesis:p > 0.3  

Right tailed test

b) p_v =P(z>2.32)=0.0102  

c) So the p value obtained was a very low value and using the significance level given \alpha=0.1 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 1% of significance the proportion of interest is higher than 0.3

Step-by-step explanation:

Part a: Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the true proportion p is greatr than 0.3, so then the system of hypothesis are.:  

Null hypothesis:p \leq 0.3  

Alternative hypothesis:p > 0.3  

Right tailed test

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

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

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

Calculate the statistic  

For this case the statistic is given by z_{calc}= 2.32

Part b: Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The next step would be calculate the p value for this test.  

Since is a right tailed test the p value would be:  

p_v =P(z>2.32)=0.0102  

Part c

So the p value obtained was a very low value and using the significance level given \alpha=0.1 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 1% of significance the proportion of interest is higher than 0.3

6 0
3 years ago
Expand the following:<br> a) 3(x + 5)<br> b) 4(x-4)<br> c) 2(5x + 1)<br> d) 7(x-9y)
Tema [17]

Answer:

<h3>a. 3x+15</h3><h3>b. 4x-16</h3><h3>c. 10x+2</h3><h3>D. 7x-63y</h3>

solution,

a. \: 3(x + 5) \\  \:  \:  = 3 \times x + 3  \times 5 \\  \:  \:  = 3x + 15

b. \: 4(x - 4) \\  \:  \:  = 4 \times x - 4 \times 4 \\  \:  \:  = 4x - 16

c. \: 2(5x + 1) \\  \:  = 2 \times 5x + 2 \times 1 \\  \:  \:  = 10x + 2

d . \: 7(x - 9y) \\  \:  = 7 \times x - 7 \times 9y \\  \:  \:  = 7x - 63y

Hope this helps..

Good luck on your assignment..

8 0
3 years ago
Read 2 more answers
What is the solution of this equation 10.25 ( 3x-4) + 18.2=1434/4
Dvinal [7]
I got 6 if that helps i dont know if thats right or not




4 0
3 years ago
The butter distributor charges $4.50 per pound, but there is a handling fee of $8.50 per order. Free shipping for orders between
kykrilka [37]

Answer:

14.00

Step-by-step explanation:

add

subtract

divide

multiple

4 0
2 years ago
Other questions:
  • David is buying a new car for 21,349.00 Heplains to make a down payment of 3,000.00. If he's to make monthly payments of $345 fo
    7·1 answer
  • What is 5/12th plus 1/6th
    10·2 answers
  • The CEO of a large electric utility company claims that 80 percent of his 1,000,000 customers are very satisfied with the servic
    6·1 answer
  • Question 1
    5·2 answers
  • Help me ! Please I’m trying to get pass this !
    14·2 answers
  • For what period of time during the dive is the diver's center of mass higher than the diving board, which is 6 feet above the wa
    5·1 answer
  • Cesar bought lunch at school. He had a sandwich and a drink that cost ​$12. His drink cost ​$3.50. Solve the equation 12=s+3.50
    5·1 answer
  • Solve for x i need help
    11·1 answer
  • Hey.... what's <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B343%7D%20" id="TexFormula1" title=" \sqrt[3]{343} " alt
    13·2 answers
  • Which graph can be used to find the solution to the system of equations below? 2x + y = -4 - 3y = 2x + 12 2 -4-3-2-1 -1 1 2 3 5
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!