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Crank
3 years ago
14

Chuck drops a rock from a height of 70 m. How long will it take the rock to hit the ground? Use the formula h(t)=−4.9 t 2 + v o

t+ h o , where v o is the initial velocity and h o is the initial height. Round to the nearest tenth of a second.

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
7 0
That's the best I could do. I hope it helped

storchak [24]3 years ago
7 0

Answer: 3.8

Step-by-step explanation:

your suppose to round (btw do u have the rest of this test answers yet because i need them too)

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Question is below (wasn't sure about the answer)
Paha777 [63]

Answer: Choice A)

H = \frac{SA}{2(L+W)} - \frac{LW}{L+W}\\\\

=================================================

Work Shown:

SA = 2(LW + LH + HW)\\\\2(LW + LH + HW) = SA\\\\LW + LH + HW = \frac{SA}{2}\\\\LH + HW = \frac{SA}{2} - LW\\\\H(L + W) = \frac{SA}{2} - LW\\\\H = \frac{\frac{SA}{2} - LW}{(L + W)}\\\\H = \frac{SA}{2(L+W)} - \frac{LW}{L+W}\\\\

This is not the only way to solve for H.

3 0
2 years ago
12.2​z ​+ 19.4 = -2.7​z​ + 93.9
Digiron [165]

Answer:

z=5

Step-by-step explanation:

12.2z​+ 19.4 = -2.7​z​ + 93.9

14.9z=74.5

z=5

3 0
3 years ago
Read 2 more answers
What’s the slope to (3,5) and (-3,-5)
Firlakuza [10]
5/3 is the simplified slope.
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3 years ago
Example 2: Combining Use of the Multiplication and Addition Rules
bulgar [2K]

Answer:

The probability of getting 6's on both cubes is \frac{1}{36}.

The probability that the total score is at least 11 is \frac{1}{12}.

Step-by-step explanation:

Consider the provided information.

A red cube has faces labeled 1 through 6, and a blue cube has faces labeled in the same way.

Part (A) Both cubes show 6’s.

Probability of getting 6 on red cube is \frac{1}{6}

Probability of getting 6 on blue cube is \frac{1}{6}

Thus, the probability of getting 6's on both cubes is:

P(\text{Both 6's})=\frac{1}{6}\times\frac{1}{6}=\frac{1}{36}

Hence, the probability of getting 6's on both cubes is \frac{1}{36}.

Part (B) The total score is at least 11.

The possible number of outcomes in which total score is at least 11 is:

Red shows 6 and Blue shows 5.

Blue shows 6 and Red shows 5.

Blue shows 6 and Red shows 6.

Thus, the probability of total score is at least 11.

P(\text{Total is at least 11})=\frac{1}{6}\times\frac{1}{6}+\frac{1}{6}\times\frac{1}{6}+\frac{1}{6}\times\frac{1}{6}\\P(\text{Total is at least 11})=\frac{1}{12}

Hence, the probability that the total score is at least 11 is \frac{1}{12}.

3 0
3 years ago
ANSWER NEEDED QUICKLY, RIGHT ANSWER WILL RECEIVE BRAINLIEST ♦️
Oksi-84 [34.3K]

111km

the ratio is 1:15 so you do 7.4×15

7 0
3 years ago
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