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Harman [31]
3 years ago
9

Using this formula, calculate the value of the z-statistic. Round your answer to the tenths place.

Mathematics
2 answers:
Nitella [24]3 years ago
7 0

Answer:

z= -2.5

Step-by-step explanation:

morpeh [17]3 years ago
4 0

Answer:

-2.5

Step-by-step explanation:

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What is value of x?<br> Enter your answer in the box.
marin [14]

Answer:

x \ = \ 10

Step-by-step explanation:

Let point D be the point where the straight line drawn from point A meets the straight line BC, it is evident that \triangle ABD and \triangle ACD is similar given that both triangles share the same angle, \angle BAD \ = \ \angle DAC. Hence, the ratio of the sides of each triangle is the same. Specifically,

                                              \displaystyle{\frac{x+4}{8} \ = \ \frac{2x+1}{12}}.

Performing cross multiplication yields

                                           12\left(x+4\right) \ = \ 8\left(2x+1\right) \\ \\ \rule{0.15cm}{0cm}12x+48 \ = \ 16x+8 \\ \\ \rule{1.1cm}{0cm} 4x \ = \ 40 \\ \\ \rule{1.3cm}{0cm} x \ = \ 10.

8 0
2 years ago
I need help with this question please
Marina86 [1]

Answer:

Step-by-step explanation:

√14 cannot be rewritten as the ratio of two integers and thus is irrational.

Similarly, √99 is irrational; √99 = √9√11 is irrational even though √9 is not.

3 0
3 years ago
Help quickly please!!!
vagabundo [1.1K]

Answer:

1/3 B h

1/3(50.24)(10)

plug in into a calculator

6 0
4 years ago
Please help me with this math problem.
NARA [144]
WHERE IS THE MATH PROBLEM

5 0
4 years ago
In △ ABC and △DEF, AC = DF, AB = DE and &lt; A = <br><br> Pls help dont scam me pls....
zysi [14]

Answer:

∠A = ∠D  (**but very important Δ ABC has to be congruent to Δ DEF)

Step-by-step explanation:

It will help if you draw the triangles out and label the same sides. Then according to the side-angle-side (SAS) rule, ∠A should be equal to ∠D

5 0
3 years ago
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