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OLga [1]
3 years ago
13

Help! I need this really quick here!!!!!!

Mathematics
1 answer:
Vilka [71]3 years ago
3 0
(negative infinity , 0] I believe I'm not 100%
You might be interested in
(-30(-7))-(210(-3))=
Vlad [161]

Answer:

840

Step-by-step explanation:

(−30)(−7) − (210)(−3)

=210 − (210)(−3)

=210 − (−630)

=840

Hope this helps!

brainliest?

:)

3 0
3 years ago
Read 2 more answers
A can do a piece of work in 4 hours and B can do it in 6 hours. How much time would they take working together to finish the wor
Kipish [7]

Answer:

2.4 hours

Step-by-step explanation:

Let total work = X

Rate of work done = X ÷ time

Rate of A = X/4

Rate of B = X/6

If they work together, rate is the sum of their individual rates, i.e.

X/4 + X/6

= (3X + 2X)/12 (taking LCM)

=5X/12

Rate = X/time

5X/12 = X/time

time = X÷(5X/12)

time = X × 12/(5X)

time = 2.4 hours

Shortcut:

Product of individual times/sum of individual times

= (4×6)/(4+6)

=24/10

=2.4 hours

8 0
4 years ago
Read 2 more answers
Compare and contrast the absolute value of a real number to that of a complex number.
sveticcg [70]
The absolute value of a real number is a positive value of the number. Which means that the absolute value is the distance from zero of the number line. However, that of the complex numbers is the distance from the origin to the point in a complex plane. 
4 0
3 years ago
Read 2 more answers
The endpoints of a side of rectangle ABCD in the coordinate plane are at A(3,7) and
shusha [124]
A if you multiply the divide the. Subtract the add the. Iudjnff
6 0
3 years ago
Please help!
agasfer [191]
Ok im not sure the answer yet so ima work on it at the same time while im explaining it. (The answer will probably be near the end)

We can use the elimination method to eliminate y out. To do that we multiply the first equation by 3.

6x+3y=-12

Now just subtract it from the other equation.

6x+3y=-12
5x+3y=-6

***x=-6***

Usually after doing the elimination method you will have to solve for x but in this case its already solved for you. If you want to find y now you just take the first equation and fill x with -6 and solve for y.

2(-6)+y=-4
-12+y=-4
y=8

Brainliest my answer if it helps you out?
4 0
4 years ago
Read 2 more answers
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