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sp2606 [1]
2 years ago
11

Mark is building a scale model of his car as shown in the diagram. The actual car has a height of 10 feet and the model has a he

ight of 1 foot at the same place.A. What is the actual length of the car?
Mathematics
1 answer:
malfutka [58]2 years ago
6 0

Answer:

A- 12.5

Step-by-step explanation:

(I used the formula a.bc X de = f X g = ft of car)

1.25x10=12.5X1=12.5ft

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3 years ago
I have no idea how to do this, it is due in two days. Hopefully someone sees this before then.
elena-14-01-66 [18.8K]

Hello,

m\ \widehat{ABC}=x\\m\ \widehat{BAC}=2*x\\\\So:\\ x+2x=90^o\\x=30^o\\

cos(30^o)=\dfrac{\sqrt{3} }{2} \\

In the triangle ABC,

cos(30^o)=\frac{BC}{BA} \\\\BA=\dfrac{cos(30^o)}{BC} \\\\BA=\frac{\dfrac{\sqrt{3} }{2} }{24} =16*\sqrt{3} \\\\

sin(30^o)=\dfrac{1 }{2} =\dfrac{AC}{AB} \\\\AC=\dfrac{1}{2} *16\sqrt{3} =8\sqrt{3}

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6 0
2 years ago
Henry ate 3/8 of a sandwich. Keith ate 4/8 of the same sandwich. How much more of the sandwich did Keith eat than Henry?
ludmilkaskok [199]
4/8-3/8=1/8more

Therefore Keith at 1/8 more of the sandwich than Henry.
6 0
3 years ago
In the year 1987, an investment was worth $29,800. In the year 1997, this
Veseljchak [2.6K]

Answer:

a) 46.98%

b) increasing rate of change

Step-by-step explanation:

In year 1987, investment worth $29800

In year 1997, investment worth $43800

Rate of change = 1997investment - 1987investment / 1987investment × 100

Rate of change = 43800 - 29800/29800 × 100

= 14000/29800 × 100

= 0.46979 × 100

= 46.98%

Therefore, the rate of change of the investment during the time period is 46.98%.

b) The rate of change of the investment is increasing. This is as a result of the following reasons. First, the value of rate of change is positive. Second, there is no value for rate of change for period before the time period so we cannot compare rate of change.

8 0
3 years ago
Jeremiah work 5 days a week.if he earned $225 a day, how much does he earn per day?
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Uh do you mean he earned $225 per week?
If yes, then he earned 45 per day.
7 0
3 years ago
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