3 years ago

Please , I didn't have time to study. god bless to all <3

1 answer:

3 0

This is the first half of the question.
Let's solve your equation step-by-step.5x=9x3+2x2−5x+4Step 1: Subtract 9x^3+2x^2-5x+4 from both sides.5x−(9x3+2x2−5x+4)=9x3+2x2−5x+4−(9x3+2x2−5x+4)−9x3−2x2+10x−4=0Step 2: Use cubic formula.x=−1.31953Answer:<span>x=<span>−1.31953

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The distance around a meteor crater is 9,799 ft. Find the diameter of the crater. Use 22 7 for π.

madam [21]

Answer:

3118.7ft

Step-by-step explanation:

Given data

Circumference= 9,799 ft

We want to find the diameter, but we need to get the radius

C= 2πr

9,799=2*22/7*r

9,799=2*3.142*r

9,799=6.284r

r=9,799/6.284

r= 1559.35

Hence the diameter is =1559.35*2

Diameter=3118.7ft

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3 years ago

HELP ME PLZ! :3

sveta [45]

Part A:
y=mx+b
621=83(7)+b

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2 years ago

The mean of four numbers is 7. Three of the numbers are 5,7 and 7. What is the fourth number?

Marrrta [24]

Answer:

fourth number is 9

Step-by-step explanation:

let 'x' equal the fourth number

(5+7+7+x)/4 = 7

cross-multiply to get:

19 + x = 28

x = 9

5 0

2 years ago

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a. True

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