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Romashka-Z-Leto [24]
3 years ago
9

Can someone answer these question pls

Mathematics
2 answers:
Firdavs [7]3 years ago
6 0
Y= 12 because anything to the 0 power is 1 so 4*1=4 * 3=12
Leya [2.2K]3 years ago
6 0
It’s y=12 hope this helped
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A teacher claims that the proportion of students expected to pass an exam is greater than 80%. To test this claim, the teacher a
erica [24]

Answer:

z=-1.591

Step-by-step explanation:

Null Hypotheses,

H_0 : p=0.8\\H_a: p>0.80

So we use z-test for one population proportion (right-tailed test)

According to this informaton, we defined that

\alpha=0.05

z_c=1.64 (critical value)

So our Rejection region is R={z:z>1.64}

z=\frac{\bar{p}-p_0}{\sqrt{p_0(1-p_0)/n}} = \frac{0.755-0.8}{\sqrt{0.8(1-0.8)/200}}=-1.591

Not rejection.

6 0
3 years ago
HELP I attracted a picture????
posledela

Answer:

D. 187 m²

Step-by-step explanation:

Alrighty, so this is a standard area problem, the formula for finding the area of a triangle is base x height ÷ 2  so:

34 x 11 ÷ 2 = 187

So the area of the triangle is 187 m²

hope this helps:)

6 0
3 years ago
What is the value of m+(6n-1) when m=3 and n=1?
joja [24]

Answer:

8

Step-by-step explanation:

you do the brackets first so (6n-1) would be 6-1 which equals 5

now we have m=5, m is 3 so 3+5=8

4 0
3 years ago
Read 2 more answers
Greg thinks of a number, multiplies it by 3, subtracts 5 and then multiplies by 2. His answer is 26. What number did Greg think
soldi70 [24.7K]

Answer:

x

3x

3x-5

2(3x-5)

so

2(3x-5)=26

3x-5=13

3x=18

x=6

he thought of 6

8 0
2 years ago
Multiply.<br><br> 0.0483 · 100 = _____
mash [69]
0.0483 multiplied by 100 equals 4.83
5 0
3 years ago
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