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mina [271]
3 years ago
7

A group of students must collect at least $150 to organize a science fair. They have already collected $30. Which graph best rep

resents all remaining amounts of money, in dollars, that the students should still collect to organize the science fair?
Number line graph with closed circle on 120 and shading to the right.
Number line graph with closed circle on 30 and shading to the right.
Number line graph with closed circle on 150 and shading to the right.
Number line graph with closed circle on 180 and shading to the right.
Mathematics
1 answer:
nikdorinn [45]3 years ago
3 0
Number line graph with closed circle on 120 and shading to the right.

Since they need $150 in total and they already have $30 that means they need $120 or more to complete their $150. That means x = the amount of money they still need has to be greater than or equal to $120. The equation should be x >/= $120. Since a close circle means greater than or equal to and it matches that equation it means it that one. Also the circle has to be on 120 because it that the starting point of the amount they still need. And since they can get 120 or more it points to the right side.
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Find the volume of a sphere with a surface area of 2916 squared pi
Svet_ta [14]

Answer:

it would be somewhere around 29161231

Step-by-step explanation:

it is m8

6 0
3 years ago
Tim looks up at the top of a tree at an angle of elevation of 40 degrees. If heis 5 ft tall and 10 ft from the tree, how tall is
dolphi86 [110]
<h2>Answer:</h2>

13.391 ft

<h2>Explanations:</h2>

The schematic diagram of the given question is shown below;

The height of the tree is expressed as:

H = h +5

Determine the value of h using the SOH CAH TOA identity

\begin{gathered} tan\theta=\frac{opposite}{adjacent} \\ tan40^0=\frac{h}{10} \\ h=10tan40 \\ h=10(0.8391) \\ h=8.391ft \\  \end{gathered}

Determine the height of the tree

\begin{gathered} H=h+5 \\ H=8.391+5 \\ H=13.391ft \end{gathered}

Hence the height of the tree is 13.391ft

3 0
1 year ago
Simplify the expression. Write your answer as a power.
iVinArrow [24]

Answer:

The answer is 3⁴

Step-by-step explanation:

3² • 3² = 3²⁺² = 3⁴

Thus, The answer is 3⁴

<u>-TheUnknownScientist</u>

8 0
3 years ago
How did you decide which make a ten fact to use? Explain
s2008m [1.1K]
If you are asking when you divide ten into a number, remember this, anything that ends with a 0, it is divisible by 10.
8 0
3 years ago
There are four activities on the critical path, and they have standard deviations of 1, 2, 4, and 2. what is the probability tha
Sauron [17]
The expected completion time is μ = 40 weeks.
The random variable, X = 38 weeks (the probable time)

If the standard deviation is σ, then the z-score is z = (x - μ)/σ.

Let us test the given standard deviations.
When σ=1,
z = (38-40)/1 = -2
From standard tables,
P(x<=38) = P(z<=-2) = 0.0228 =2.3%

When σ=2,
z = (38*40)/2 = -1
P(x<=38) = P(z<=-1) = 0.1587 = 15.9%

When σ=4,
z = (38-40)/4 = -0.5
P(x<=38) = P(z<=-0.5) = 0.3085 = 30.9%

Answers:
z=1 => 2.3%
z=2 => 16% (approx)
z=4 => 31% (approx)

7 0
3 years ago
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