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Goryan [66]
3 years ago
15

30 POINTS OFFERED Twenty-five percent of 34 is

Mathematics
2 answers:
Svetach [21]3 years ago
6 0

Answer:

8.4

Step-by-step explanation:

skad [1K]3 years ago
3 0

25% is 25/100 or 1/4 = 0.25

so 0.25•34=8.5

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Lesson 2-3<br> 21. 6 - 2(x + 6) = 3x + 4
PolarNik [594]
Step by step:
6 - 2(x + 6) = 3x + 4
6 - 2x -12 = 3x + 4
6 - 12 = 5x + 4
-6 = 5x + 4
-10 = 5x
-2 = x

So, x = -2
4 0
3 years ago
A video screen is 16 in. by 12 in. tall. What is the width of the largest complete image possible for a photograph that is 8 in.
Leni [432]
16 inches, and 10 inches tall.

So because, they are asking the largest image for the photograph,
so 8 * 2 = 16
and 10 * 2 = 20 but 20 can't go into 12.

So the answer?
16 inches and 10 inches tall.
7 0
4 years ago
Read 2 more answers
A publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is
nexus9112 [7]

Answer:

z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933  

p_v =2*P(z  

Step-by-step explanation:

Information given

n=370 represent the sample selected

\hat p=0.4 estimated proportion of  readers owned a laptop

p_o=0.45 is the value that we want to test

z would represent the statistic

p_v represent the p value

Creating the hypothesis

We need to conduct a hypothesis in order to test if the true proportion of readers owned a laptop is different from 0.45, the system of hypothesis are:  

Null hypothesis:p=0.45  

Alternative hypothesis:p \neq 0.45  

The statistic is:

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

Replacing we got:

z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933  

Calculating the p value  

We have a bilateral test so then the p value would be:

p_v =2*P(z  

8 0
3 years ago
Perform the indicated operation (3 - 5i) - (-2 +11i)​
dalvyx [7]

Answer:

5 - 16i

Step-by-step explanation:

combine like terms:

3 - (-2) = 5

(-5i) - 11i = -16i

<em>5 - 16i</em>

<em></em>

7 0
3 years ago
Write the integers -7, 4, -2 and 5 in order from least to greatest. Explain how you decided.
Dafna11 [192]

Answer:

-7, -2, 4, 5

Step-by-step explanation:

Integers with a dash in the front of them signify a negative. With negative numbers, the higher the value of the accompanying number, the lower value it has as a negative number, so, of course the negative integers would go from the "least" end of the spectrum. Because 7 has a higher positive value than 2, it has a lower negative value, putting -7 on the lower end, following it with the -2. As 5 has a higher positive value than 4, 5 is put on the highest end on the spectrum, with 4 right behind it. With all of these integers settled, we can organize the numbers in the order of -7, then -2, then 4, then 5.

6 0
3 years ago
Read 2 more answers
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