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devlian [24]
3 years ago
9

A jet travels 500 miles in 5 hours. What is the ratios of miles to hours?

Mathematics
1 answer:
tia_tia [17]3 years ago
3 0

Answer:

different answers in step-by-step

Step-by-step explanation:

100 mph

100mi:1hr

100mi/1hr

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Write the equation of the sphere in standard form. x2 + y2 + z2 + 8x − 6y + 4z + 20 = 0
Nuetrik [128]

Answer:

(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0


Step-by-step explanation:

You have to find a, b, c, r so that the polynomial expands to match the given equation.

(x-a)^2 + (y-b)^2 + (z-c)^2 - r^2 =\\x^2-2ax+a^2+\\y^2-2by+b^2+\\z^2-2cz+c^2-r^2 =\\ x^2 + y^2 + z^2 + 8x - 6y + 4z + 20

(a^2+b^2+c^2-r^2-20)+\\x(-8-2a)+y(6-2b)+z(-4-2c)=0

-8-2a=0, 6-2b=0, -4-2c=0\\a=-4, b=3, c=-2

(-4)^2+3^2+(-2)^2-r^2-20 = 0

16+9+4-20=r^2

r^2=9

r=3

(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0



5 0
3 years ago
Which inequality is true
yarga [219]

The inequality that is true is 7π > 21

<h3>How to determine the inequality that is true?</h3>

To do this, we simply test the given inequalities (starting from the first)

The first inequality is represented as

7π > 21

Divide both sides of the inequality by 7

So, we have:

7π/7 > 21/7

Evaluate the quotient of 21 and 7

So, we have:

7π/7 > 3

Evaluate the quotient of 7π and 7

So, we have:

π > 3

The above inequality is true.

This is so because π = 3.14 and 3.14 > 3

Hence, the inequality that is true is 7π > 21

Read more about inequality at

brainly.com/question/24372553

#SPJ1

6 0
1 year ago
Find the value of n in each equation. Then name the property that is used in each step. 7 + 1.5 = n + 1.5
zalisa [80]
7 + 1.5 = n + 1.5  \text{Cancel 1.5 on both sides}

n=7 \text{Solution}
8 0
3 years ago
"per month" means: ADD
Effectus [21]
Per month means multiply
Total means the amount your ending with but for this you could say add
Final answer f = 4.75 + 10m
3 0
2 years ago
700 is 2 parts in the ratio 3:2, how much would 3 parts be?
Ad libitum [116K]

answer:

3 parts will be 420

explanation:

total ratio: 3 + 2 = 5

5 ➳ 700

1 ➳ 700/5

1 ➳ 140

solve for 3 : 2

3 ➳ 140 * 3 = 420

2 ➳ 140 * 2 = 280

5 0
2 years ago
Read 2 more answers
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