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Stels [109]
4 years ago
9

Can someone please help me?

Mathematics
1 answer:
Reil [10]4 years ago
3 0

Okay so I would make sure you do that, but then make sure you add the numbers so it can have a fraction, then simplify. Heres the formula you need to know

x= a^2 x 3y

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2. A football is kicked in the air and its height, in metres, is given by the function h(t)=−4.9t^2+19.6t+1 , where t is measure
Rus_ich [418]

Answer:

27

Step-by-step explanation:

3 0
3 years ago
THIS IS AN EMERGENCY PLEASE HELP MEE!!!!!! I NEED HELP!!!
sertanlavr [38]

Answer:

19 percent i believe

Step-by-step explanation:

4 0
3 years ago
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Given the line below.
Grace [21]

Answer:

y+2=(x+2)

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

step 1

Find the slope

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

(-2,-2) and (2,2)

substitute the values

m=\frac{2+2}{2+2}=1

step 2

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=1\\(x1,y1)=(-2,-2)

substitute

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3 0
3 years ago
Define multiple of 10. Give an example of a multiple of 10
marysya [2.9K]

A multiple is a number that can be gotten from multiplying a number by any number. For example, a multiple of 3 would have to be something that you can count by threes to get to. The same applies to 10, if you count by tens, any of those numbers that you get while counting by tens would be a multiple of 10.

5 0
4 years ago
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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
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