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Yakvenalex [24]
3 years ago
6

F(x) = -4x + 8 find f(-4)

Mathematics
1 answer:
harina [27]3 years ago
7 0

Answer:

f(-4)= 24

Step-by-step explanation:

-4(-4)+8 We need to multiply -4 and -4 and a negative times a negative is a     positive.

16+8 Now it's easy math and we just add them

This gives us 24.

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In a certain chemical, the ratio of zinc to copper is 4 to 9. A jar of the chemical contains 396 grams of copper. How many grams
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Answer:

176 grams of zinc.

Step-by-step explanation:

4/9 = x/396 where x = the number of grams of zinc.

Cross multiply:

9x = 4*396

x = 4*396/9

x = 176 grams.

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3 years ago
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Part A. 4d- the d is how many desserts will be made
part B. 6- 
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3 years ago
The Lappans buy three large sandwiches to serve at a picnic. Nine people come to the picnic. Show three different ways to cut th
Leya [2.2K]

Answer:

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Step-by-step explanation:


8 0
4 years ago
The Columbia Tower in Seattle is 954 feet tall. The Seafirst Tower is T feet tall and d feet away from the Colombia Tower. Find
Blababa [14]
You have to include a drawing that relates the distace between de towers and some angles.

I will use one that gives the angle from the base of Seafirst Tower to the top of Columbia tower as 53 degress.

This lets you calculate the distance between the towers, d, as

tan(53) = 954 / d => d = 954 / tan(53) = 718.89ft

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Tnen, tan(27) = height / d => height = d*tan(27) = 718.89*tan(27) = 366.29 ft

Answer: 366.29 ft


6 0
3 years ago
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