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4 years ago

How can you use a right angle to decide how to name another angle

1 answer:

5 0

You can see if the other angles add up to 180 or 360 degrees (depending on shape) then add them to make it the number, for example, if a triangle has a right angle, then the other 2 angles are 45 degrees, knowing that EVERY triangle's angles add up to 180 degrees.

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Graph the exponential function g(x)=(3/5) ^x To graph the function plot the points on the graph with the x values -2 , -1,0,1 an

Bad White [126]

Answer:

so you plug in the numbers you were given (-2, -1, 0, 1, 2) into the x value one at a time and you will get the other point for that pair so (3/5)^-2 and whatever number you get is the 2nd number to that ordered pair

7 0

3 years ago

What is 7/3×5/8×6/7=

Rzqust [24]

The answer to this problem should be 1.25

5 0

3 years ago

Read 2 more answers

A consulting company keeps 50 staff members in their local office between Monday and Friday, but only 15 on Saturday and Sunday.

Ludmilka [50]

Answer:

Step-by-step explanation:

The consulting company keeps 50 staff members in their local office between Monday and Friday.

Again it is given that the company keeps only 15 staff on Saturday and Sunday.

Therefore, the average number of staff members in the office per day will be $\frac{\textrm{Total number of staff for all the days}}{\textrm{Total number of days}}$

= $\frac{50 + 50 + 50 + 50 + 50 + 15 + 15}{7}$

= $\frac{280}{7}$

= 40 (Answer)

3 0

4 years ago

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Can someone help me please!!!

STALIN [3.7K]

9514 1404 393

Answer:

1.048

Step-by-step explanation:

The generic form of the exponential model is ...

y = a·b^x

Filling in the given values, we have ...

100 = a·b^6

184 = a·b^19

Dividing the second equation by the first gives ...

184/100 = (a·b^19)/(a·b^6)

1.84 = b^13 . . . . . simplify

b = 1.84^(1/13) ≈ 1.048022 . . . . find the 13th root

The growth factor is about 1.048.

8 0

3 years ago

City health officials will conduct a two-sample t-test for a difference in means to investigate whether

Anvisha [2.4K]

Answer:

The calculated value t = 2.366 > 2.0301 at 0.05 level of significance

The null hypothesis is rejected

There is a difference between the means

Step-by-step explanation:

Step(i):-

Given that the first sample size 'n₁' = 22

Given that the mean of the first sample x₁⁻ = 120

Given that the standard deviation of the sample (s₁) = 20

Given that the mean of the second sample x₂⁻ = 100

Given that the standard deviation of the second sample (S₂) = 30

Step(ii):-

T-test statistic

$t = \frac{x^{-} _{1} -x^{-} _{2} }{\sqrt{S^{2} (\frac{1}{n_{1} }+\frac{1}{n_{2} } ) } }$

where

$S^{2} = \frac{n_{1} S_{1} ^{2}+n_{2} S_{2} ^{2} }{n_{1} +n_{2}-2 }$

$S^{2} = \frac{22( 20)^{2}+ 15(30) ^{2} }{22 +15-2 }$

S² = 637.1428

S = √637.1428 = 25.24168

The standard deviation of the sample 'S' = 25.24168

Step(iii):-

Null Hypothesis:H₀:

There is no difference between the means

Alternative Hypothesis:H₁:

There is a difference between the means

T-test statistic

$t = \frac{x^{-} _{1} -x^{-} _{2} }{\sqrt{S^{2} (\frac{1}{n_{1} }+\frac{1}{n_{2} } ) } }$

$t = \frac{ 120 -100 }{\sqrt{637.14 (\frac{1}{22 }+\frac{1}{15 } ) } }$

t = 2.366

Degrees of freedom

γ = n₁+n₂ -2 = 22+15-2 = 35

t₀.₀₅ = 2.0301

The calculated value t = 2.366 > 2.0301 at 0.05 level of significance

The null hypothesis is rejected

There is a difference between the means

3 0

3 years ago

Read 2 more answers