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3 years ago

PLEASE HELP! I HAVE A TIME LIMIT AND IM BEHIND

Mathematics

1 answer:

Kipish [7]3 years ago

3 0

Answer:

Part A none

Part B drawn

Step-by-step explanation:

Suppose the transversal intersects a pair of parallel lines it creates two pairs of alternate exterior angles.

Now if we look at the first figure we find that the alternate exterior angle 1 and 4 are equal . Also 3 and 2 are equal.

But <1 and < 2 are not equal . They are supplementary angles. Their sum is equal to 180 degrees.

Similarly angles 3 and4 are supplementary angles.

This situation does not support Ricky's claim. So you will select none in part A.

Now in part B we see that angle 5 &8 are equal and 6 & 7 are congruent.

This refutes Ricky's claims and this can be proved mathematically.

Angles 5 & 6 are supplementary angles. Similarly 7 & 8 are supplementary therefore they cannot be equal as they are unequal and a transversal is drawn not a perpendicular.

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luda_lava [24]

We write the equation in terms of dy/dx,
y'(x)=sqrt (2y(x)+18)
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Separating the variables in the equation, we will have:
1/sqrt(y + 9) dy= sqrt(2) dx 

Integrating both sides, we will obtain
2sqrt(y+9) = x(sqrt(2)) + c 
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4 years ago

The graph shows two lines, A and B. A graph is shown with x- and y-axes labeled from 0 to 6 at increments of 1. A straight line

maxonik [38]

there will be one solution because the lines intersect at exactly one set of points.

(0,6)(6,3)
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6 = -1/2(0) + b
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(0,0)(6,6)
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3 years ago

The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.

valina [46]

Answer:

A sample of 179 is needed.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.85}{2} = 0.075$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

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Now, find the margin of error M as such

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In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

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This means that $\sigma = \sqrt{1.69} = 1.3$

If they are using a 85% level of confidence, how large of a sample is required to estimate the mean usage of water?

A sample of n is needed, and n is found for M = 0.14. So

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$\sqrt{n} = \frac{1.44*1.3}{0.14}$

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Rounding up

A sample of 179 is needed.

7 0

3 years ago

Which system of inequalities represents reglon Z? 6

yKpoI14uk [10]

Answer:

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Step-by-step explanation:

step 1

Find the equation of the solid blue line

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y=mx+b

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Let

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y=mx+b

we have

m=-1/5

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substitute

y=-(1/5)x+2 -----> equation of the dashed red line

The solution of the inequality is the shaded area below the dashed line

therefore

The second inequality is

y<-(1/5)x+2

The system of inequalities is

y\geq 3x-2

y<-(1/5)x+2

3 0

3 years ago

Draw 3 rows with 2 counters

Volgvan

Answer

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Example-

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