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Anastaziya [24]
3 years ago
7

Which equations can be used to solve for acceleration? Select four options.

Mathematics
1 answer:
sweet [91]3 years ago
3 0

Equations for the acceleration: a=\frac{v-u}{t}, v=u+at

Step-by-step explanation:

The acceleration of a body is the rate of change in velocity of the body; it is given by

a=\frac{v-u}{t}

where

v is the final velocity

u is the initial velocity

t is the time taken  for the velocity to change from u to v

The equation can be also written as

v=u+at

Therefore, these two equations can be used to find the acceleration.

Learn more about acceleration:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

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Which number should each side of the equation 2/3x=10 be multiplied by to produce the equivalent equation of x = 15?
skelet666 [1.2K]
\dfrac23x=10
\dfrac32\times\dfrac23x=\dfrac32\times10
x=\dfrac{30}2=15
7 0
4 years ago
The U.S census bureau reported that 9 out of every 20 joggers at female. On a trail there were 230 joggers on July 4. Approximat
hodyreva [135]

Answer:

Approximately 104 joggers are female

Step-by-step explanation:

The U.S census bureau reported that 9 out of every 20 joggers at female.

Let x be the number of females out of 230 joggers.

Rewrite it as

\begin{array}{cc}\text{Female}&\text{All joggers}\\9&20\\x&230\end{array}

Now we can write a proportion:

\dfrac{9}{x}=\dfrac{20}{230}

Cross multiply:

20x=9\cdot 230\\ \\2x=9\cdot 23\ [\text{Divided by 10}]\\ \\x=\dfrac{9\cdot 23}{2}=\dfrac{207}{2}=103.5\approx 104

7 0
3 years ago
A set of computer science exam scores are normally distributed with a mean of 71.33 point, and a standard deviation of 3 points.
Bess [88]

Answer: 0.86 of the exam scores are between 68 and 77.99 points

Step-by-step explanation:

Since the set of computer science exam scores are normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = computer science exam scores .

µ = mean score

σ = standard deviation

From the information given,

µ = 71.33 points

σ = 3 points

We want to find the proportion of the exam scores are between 68 and 77.99 points. It is expressed as

P(68 ≤ x ≤ 77.99)

For x = 68,

z = (68 - 71.33)/3 = - 1.11

Looking at the normal distribution table, the probability corresponding to the z score is 0.13

For x = 68,

z = (77.99 - 71.33)/3 = 2.22

Looking at the normal distribution table, the probability corresponding to the z score is 0.99

P(68 ≤ x ≤ 77.99) = 0.99 - 0.13 = 0.86

5 0
3 years ago
Three times the square root of a number is the same as 4 less than the number. find the number
Tresset [83]
The problem is asking you to find x in this equation: 3×√x = x-4   I guessed and checked for this problem with numbers that were perfect squares like 4,9,16 etc. The number you are looking for is x=16 The square root of 16 is 4. 4x3=12 and 16-4 is 12. 
Hope I helped!
7 0
3 years ago
Help me find the mean
Dima020 [189]

3.8+7.6+9.3+31+43+54+62+89+107+119+123+127=775.7

775.7/12=64.64166666666667

So the mean is 64.64

3 0
4 years ago
Read 2 more answers
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