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1 year ago

7

Christine wants to use the net below to create a three-dimensional design for art class.

1 answer:

NikAS [45]1 year ago

4 0

is it 46 ??? because i did the work and don't feel like explaining

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1. The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75

AlladinOne [14]

Answer:

b

Step-by-step explanation:

5 0

1 year ago

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Assume a team plays 6 games. If the team is equally likely to win as to lose each game, what is the probability that they win a

dedylja [7]

<span>There is 1 way to win 6 games in a row wwwwww There are 2 ways to win 5 games in a row wwwwwl, lwwwww There are 5 ways to win 4 games in a row llwwww, wwwwll, lwwwwl, wlwwww, and wwwwlw. There are 2^n to arrange 6 wins and losses which adds up to 2^(6) = 64 So the Probability they win all four games in a stretch is 5 + 2 + 1 ways = 8 ways. So the probability = 8/64 = 1/8</span>

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1 year ago

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Dustin is standing at the edge of a vertical cliff, 40 meters high, which overlooks a clear lake. He spots a fluffy white cloud

Licemer1 [7]

Answer:

53.33 meters

Step-by-step explanation:

Let AB represents the height of the cliff,

( where, A is top and B is bottom ),

Also, C and D represents the shadow of the cloud and cloud in the sky respectively,

Suppose E is a point in the segment CD,

Such that,

AB = DE = 40 meters,

According to the question,

$m\angle CAE = 30^{\circ}$

$m\angle EAD = 60^{\circ}$

Since,

$\tan =\frac{\text{Perpendicular}}{\text{Base}}$

$\implies \tan 60^{\circ}=\frac{DE}{AE}$

$\sqrt{3}=\frac{40}{AE}$

$\implies AE = \frac{40}{\sqrt{3}}$

Now,

$\tan 30^{\circ}=\frac{CE}{AE}$

$\frac{1}{\sqrt{3}}=\frac{\sqrt{3}CE}{40}$

$\implies CE = \frac{40}{3}$

Hence,

The height of the cloud above the lake = CE + ED

$=\frac{40}{3}+40=13.33+40 = 53.33\text{ meters}$

3 0

2 years ago

Caleb bought groceries and paid $1.60 in sales tax.the sales tax rate is 2.5% What was the price of Caleb’s groceries,before tax

Goryan [66]

Let price of the Caleb's groceries was $x.

Given that tax rate is 2.5% or 0.025

Then sales tax is given by product of 0.025 and x.

which is 0.025x.

Given that tax paid is $1.60 so both must be equal

$0.025x=1.6$

divide both side by 0.025

$x=1.6/0.025$

$x=64$

Hence final answer is $64.

7 0

1 year ago

a student says that if 5x2 = 20, then x must be equal to 2. do you agree or disagree with the student? justify your answer.

PtichkaEL [24]

To check if the student is correct, we are going to solve the equation step by step.

Step 1 divide both sides of the equation by 5:

$5x^2=20$

$\frac{5x^2}{5} =\frac{20}{5}$

$x^2=4$

Step 2 take square root to both sides of the equation:

$\sqrt{x^2} =(+/-)\sqrt{4}$

$x=(+/-)\sqrt{4}$

$x=2$ or $x=-2$

The equation has tow solutions, $x=2$ and $x=-2$ .

I disagree with the student because $x=2$ is just one solution and not the only one; $x=-2$ is also a valid solution of the equation.

5 0

2 years ago

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