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Yuki888 [10]
2 years ago
7

Someone help fast! please

Mathematics
1 answer:
Lera25 [3.4K]2 years ago
6 0

Answer:

48cm

Step-by-step explanation:

96/12=8

This means that 8 is the factor by which the diagram and the actual ramp vary

so then you multiply 8 times the height on the diagram to find the true height

8x6=48

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Afirm’s marketing manager believes that total sales X can be modeled using a normal distribution with mean m ¼ $2.5 million and
Ugo [173]

Answer: 0.0475

Step-by-step explanation:

Given :  A firm’s marketing manager believes that total sales X can be modeled using a normal distribution.

Where , Population mean : \mu=2.5\text{ million}=2.5\times1000000=2500000

Standard deviation : \sigma=300000

To find : Probability that the firm’s sales will exceed $3 million i.e. $ 3,000,000.

∵ z=\dfrac{x-\mu}{\sigma}

Then , for x= 3,000,000

z=\dfrac{3000000-2500000}{300000}=1.67

Then , the  probability that the firm’s sales will exceed $3 million is given by :-

P(z>1.67)=1-P(z

Hence, the probability that the firm’s sales will exceed $3 million = 0.0475

4 0
3 years ago
n example 3, your friend says that there is enough information to determine the numbers of solutions of the equations $3(5x+2)=1
mr_godi [17]

The number of solutions of the equations can't be determined.

<h3>How to illustrate the information?</h3>

It should be noted an equation shows the relationship between the variables. It should be noted that the question is to find the number of solutions.

From the information, 3(5x + 2) = 15x

15x + 6 = 15x

Collect like terms

15x - 15x = - 6

0 = -6

Therefore, it can be see that the friend is incorrect as the number of solutions of the equations can't be determined.

Learn more about equations on:

brainly.com/question/2972832

#SPJ1

6 0
1 year ago
WHICH EXPRESSTIONS ARE EQUIVILENT TO 4. (7.y)?<br><br> HURRY
diamong [38]
I think it’s 1,2, and 4
8 0
3 years ago
Solve the following problem first using a tape diagram and then using an equation: In a school choir, 1/2 of the members were gi
julsineya [31]

Answer: 9 boys remained in the choir.

Step-by-step explanation:

Let x be the number of of boys and y be the number of girls.

In a school choir, 1/2(half) of the members were girls.

i.e x=y  (1)

At the end of the year, 3 boys left the choir, and the ratio of boys to girls became 3:4.

\dfrac{x-3}{y}=\dfrac{3}{4}\\\\\Rightarrow\ 4(x-3)=3(y)\\\\\Rightarrow\ 4x-12=3y  

Put y= x from (1), we get

4x-12=3x\\\\\Rightarrow\ 4x-3x=12\\\\\Rightarrow\ x=12

Thus , the number of boys : x= 12

Boys remained in the choir = 12-3=9

6 0
3 years ago
what is an equation in point slope form of the line that passes through (-5, -4) and has a slope of 3
lisabon 2012 [21]

Answer:

y + 4 = 3(x + 5)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 3 and (a, b) = (- 5, - 4) , then

y - (- 4) = 3(x - (- 5) ) , that is

y + 4 = 3(x + 5)

4 0
3 years ago
Read 2 more answers
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