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Stels [109]
3 years ago
7

What is the rate and unit rate for 420 miles in 7 hours

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
4 0
\frac{420mi}{7h}=\frac{420}{7}\ mi/h=60\ mph
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10 identical spheres of radius 7cm are to be painted. What is the total area of surface to be painted​
IgorLugansk [536]

Answer:

Surface area =  4 π r2 square units

Step-by-step explanation:

6 0
2 years ago
What is the slope of the line with the points (3,5) and (6,4)
Bumek [7]

Answer:

The slope is -1/3

Step-by-step explanation:

(y2-y1)/(x2-x1)

(4-5)/(6-3)

-1/3

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3 years ago
-4(3x-1)=12-8x and plz show how you got it
Inga [223]
Step 1:  -4(3x-1) becomes -12x+4
step 2: -12x+4=12-8x
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Find a polynomial f(x) of degree 4 that has the following zeros.<br> 0, -5, 8, -2
Roman55 [17]

Answer:

The polynomial of the function degree '4'

x⁴ - x³ -46 x² -80x =0

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given zeros are 0 ,-5,8,-2

x =0 , x=-5 ,x=8 and x=-2

(x-0) , ( x+5) , (x-8) and (x+2)

The polynomial function with degree '4'

(x-0)(x-(-5)(x-8)(x-(-2) =0

x ( x+5) (x-8) (x+2) =0

(x² +5x)(x-8)(x+2) =0

(x³ -8 x²+5x² -40 x)(x+2) =0

( x³ -3 x² - 40 x) (x +2) =0

x⁴ + 2 x³ - 3 x³- 6 x²-40 x²- 80 x =0

x⁴ - x³ -46 x² -80x =0

<u><em>Final answer:-</em></u>

The polynomial of the function degree '4'

x⁴ - x³ -46 x² -80x =0    

3 0
3 years ago
The Chic Boutique has a sale of school spirit clothing. The table shows the regular price, r, and the
maw [93]

Answer:

A

Step-by-step explanation:

I took the test

7 0
3 years ago
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