3 years ago

What is the distance between point A (−1, 3) and point B (−7, 3) ?

Mathematics

1 answer:

malfutka [58]3 years ago

8 0

Answer:

Step-by-step explanation:

I used the formula d=√((x_2-x_1)²+(y_2-y_1)²), plugged in the numbers and solved and got 6 units.

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Do these ratios form a proportion?

Georgia [21]

Answer:

Yes these ratios do form a proportion :)

Step-by-step explanation:

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3 years ago

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qaws [65]

-4/5

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3 years ago

In a school, the ratio of musicians to athletes is 3 : 1. The number of musicians is how many times the number of athletes?

Flura [38]

In a school, the ratio of musicians to athletes is 3 : 1. The number of musicians is how many times the number of athletes?

Answer:

3 times as many as the athletes

Hope that helps and good luck

~May

8 0

3 years ago

Find two complex numbers that have a sum of 10i, a difference of -4 and a product of -29

HACTEHA [7]

Let these two numbers be $z$ and $w$ . Their sum is $10i$ , their difference is -4, and their product is -29:

$z+w=10i$

$z-w=-4$

$zw=-29$

Add the first two equations together to eliminate $w$ :

$(z+w)+(z-w)=10i-4\implies 2z=-4+10i\implies z=-2+5i$

Then

$w=10i-z\implies w=10i-(-2+5i)=2+5i$

Just to confirm this is correct, check their product:

$(-2+5i)(2+5i)=-4+25i^2=-4-25=-29$

5 0

3 years ago

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey a

Harman [31]

Answer:

2.4 hours

Step-by-step explanation:

Because 1 hour Randy clean 1/4 of the room and Trey is 1/6. So we add both together and get that they clean 5/12 of the office in one hour. So 2.4 hours is the greatest amount of time it would take them to clean offices together

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2 years ago