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swat32
4 years ago
14

Help Plzzzz

Mathematics
2 answers:
Mkey [24]4 years ago
4 0

Answer:

3.6 \:  \: cm

Step-by-step explanation:

area \\ 4.5 =  \frac{1}{2}(a + b ) \times h \\ 4.5 =  \frac{1}{2} (1 + 1.5) \times h \\ 4.5 =  \frac{1}{2}  \times 2.5 \times h \\ 4.5 =  \frac{2.5h}{2}  \\ 4.5 = 1.25h \\  \frac{4.5}{1.25}  =  \frac{1.25h}{1.25}  \\ h = 3.6 \: cm

hope this helps

brainliest appreciated

good luck! have a nice day!

denpristay [2]4 years ago
3 0

Answer:

3.6 cm

Step-by-step explanation:

The area of a trapezoid is found by

A = 1/2 (b1+b2)*h

We know the area of 4.5  and the top is 1 and the bottom is 1.5

4.5 = 1/2 (1+1.5) h

4.5 = 1/2 (2.5) h

4.5 =1.25h

Divide each side by 1.25

4.5/1.25 = 1.25h/1.25

3.6 =h

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Kobotan [32]

Answer:

rate of change: $0.35; initial value: $2.50; Equation: y= 0.35x + 2.50

Step-by-step explanation:

The rate of change is $0.35 because it's the one to change the total cost of the ice cream. If you get 3 toppings, you'll end up with 1.05 more dollars than if you had 0 toppings. And because of that, the initial value would also be $2.50, that's the minimum price you'll have to pay if you do want a sundae.

The equation is just restating all that, you start with the inital value b=$2.50, and the price will go up by 0.35 for every topping you add to the sundae.

Hope this helped :)

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3 years ago
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