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2 years ago

Solve. 164+56-[3+4+1]=

Mathematics

1 answer:

alukav5142 [94]2 years ago

3 0

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Help please I need this ASAP

seropon [69]

Ohhhh I know it’s the second one hope that helps

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2 years ago

10# A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like

ella [17]

ANSWER:

104

STEP-BY-STEP EXPLANATION:

Given:

Standard deviation (σ) = 700

Confidence level = 95%

Mean error (Eμ) = 135

We have for a confidence level of 95%:

$\begin{gathered} \alpha=100\%-95\%=5\%=0.05 \\ \\ \alpha\text{/2}=\frac{0.05}{2}=0.025 \\ \\ \text{ The corresponding Z value for \alpha/2 = 0.025 is as follows:} \\ \\ Z_{\alpha\text{/2}}=1.96 \end{gathered}$

Now, we calculate the minimum value of the sample size as follows:

$\begin{gathered} n=\left(\frac{Z_{\alpha\text{/2}}\cdot\sigma}{E}\right)^2 \\ \\ \text{ We replacing:} \\ \\ \:n=\left(\frac{1.96\cdot 700}{135}\right)^2 \\ \\ \:n=103.2858\cong104 \end{gathered}$

The minimum sample size needed is 104

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8 months ago

EXPERTS/ACE/GENIUSES PLZ HELP

Anna71 [15]

I believe it's 8 because it's scale is 4 times bigger.
2×4=8

6 0

2 years ago

Read 2 more answers

How many equal line segments are needed to make a row of 35 squares?

kotykmax [81]

Answer:

each pair of distinct vertices we connect them up with

a line segment. There are (8 2 )=28 such line segments.

Step-by-step explanation:

5 0

2 years ago

Help me pleasee asap !!

Alik [6]

Answer:

F = 110°

I'm not sure, but since no one answered, here it goes...

Step-by-step explanation:

∵ FD = FE (Given in Diagram)

∴ ΔDFE is isosceles , ∴m∠E = m∠D

1 ) 3x + 14 = 5x

14 = 5x - 3x

14 = 2x

14 / 2 = x

7 = x

m∠E = 3*7 + 14 = 35°

m∠D = 5*7 = 35°

m∠F = 180 - (35+35)

m∠F = 110°

3 0

2 years ago