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Trava [24]
3 years ago
7

What is the area of the real object that the scale drawing models?

Mathematics
2 answers:
navik [9.2K]3 years ago
7 0
D 120

Since the ratio from model to the real object is 1:4 then you would multiply the area of 30 by 4 to get 120
LekaFEV [45]3 years ago
5 0

Answer:

The answer will be 120

Step-by-step explanation:

When you multiply the area of 30 by 4 you will get 120

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Subtract.<br><br>(–3f – 4g + 9) – (2 – 6f + 5g)
Tresset [83]

Answer:

3f  -9g +7

Step-by-step explanation:

(–3f – 4g + 9) – (2 – 6f + 5g)

Distribute the minus sign

(–3f – 4g + 9) – 2 + 6f - 5g

I like to line them up vertically

–3f – 4g + 9

+ 6f - 5g  -2

------------------------

3f  -9g +7

5 0
3 years ago
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BRIANLIEST Helpppppppppppppp
xxTIMURxx [149]

i am pretty sure the answer is <em><u>C. 13</u></em>

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3 years ago
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48% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually
oksian1 [2.3K]

Answer:

There is no sufficient evidence to support the executive claim

Step-by-step explanation:

From the question we are told that

     The  population proportion is  p =  0.48

      The  sample proportion is  \r p  =  0.45

       The sample  size is  n  =  300

       The  level of significance is \alpha  =  0.02

The null hypothesis is  H_o  :  p=  0.48

The  alternative hypothesis is  H_a  :  p \ne  0.48

   Generally the test statistics is mathematically evaluated as

           t =  \frac{\r p  -  p  }{ \sqrt{ \frac{p(1 -  p )}{n} } }

=>        t =  \frac{0.45   -  0.48   }{ \sqrt{ \frac{0.48 (1 -  0.48 )}{300} } }

=>       t =  -1.04

The  p-value is mathematically represented as

     p-value  =  2P(z  >  |-1.04|)

Form the z-table  

                 P(z  >  |-1.04|)  =   0.15

=>   p-value  =  2 * 0.15

=>   p-value  = 0.3

Given that  p-value  >  \alpha  we fail to reject the null hypothesis

   Hence we can conclude that there is no sufficient evidence to support the executive claim

5 0
3 years ago
Lance loaded 89 boxes into his delivery truck in the morning . At 2 o clock that afternoon he had 36 boxes left on the truck . H
zubka84 [21]

Answer:

53 boxes

Step-by-step explanation:

Subtract the end amount from the beginning amount to find the number of boxes already delivered.

89-36=53

4 0
3 years ago
HELP ASAP!!!<br> Find the missing value.<br> V=758.16 L=13 W=? H=7.2
ella [17]

Answer:  8.1

Step-by-step explanation:

758.16 ÷ 13 =58.32

58.32 ÷ 7.2 = 8.1

Check: 8.1 ×13 ×7.2=758.16

6 0
3 years ago
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