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Greeley [361]
3 years ago
12

The sum of two numbers is 100. Their difference is 30. Find the larger number.

Mathematics
1 answer:
Kisachek [45]3 years ago
3 0

Answer:

70

Step-by-step explanation:

I suppose its 70 because... 7 + 3 = 10

and 70 + 30 = 100...so the SUM is 100...yet minus 30 would be 70...so

70 is the bigger number...

please let me know if this was right...

hope I helped!

:)

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If a is positive, the parabola will open to the right, so the answer is C

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
Please need help in these 3 algebra questions !!!!
Marysya12 [62]

Answer:

\large\boxed{7.\ B.\ 8s^2+16s+1}\\\\\boxed{8.\ D.\ -15t^9u^{11}}\\\\\boxed{11.\ C.\ 3,\ -2}

Step-by-step explanation:

7.\\(3s^2+7s+2)+(5s^2+9s-1)=3s^2+7s+2+5s^2+9s-1\\\\\text{combine like terms}\\\\=(3s^2+5s^2)+(7s+9s)+(2-1)\\\\=8s^2+16s+1

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11.\\n-the\ number\\\\n^2=n+6\qquad\text{subtract}\ n\ \text{and}\ 6\ \text{from both sides}\\\\n^2-n-6=0\\\\n^2+2n-3n-6=0\\\\n(n+2)-3(n+2)=0\\\\(n+2)(n-3)=0\iff n+2=0\ \vee\ n-3=0\\\\n+2=0\qquad\text{subtract 2 from both sides}\\n=-2\\\\n-3=0\qquad\text{add 3 to both sides}\\n=3

4 0
3 years ago
Which expression can be used to find the volume of the sphere?
Kryger [21]

Answer:

They used 3.14 for pi:

V=\frac{4}{3} \pi r^3

V=\frac{4}{3} (3.14)(5)^3

Step-by-step explanation:

V=\frac{4}{3}\pi r^3 is the volume of a sphere with radius r.

I think that is the diameter given in the picture.

The radius is half the diameter.

So the radius is 5 since the diameter is 10.

Plug in this gives you:

V=\frac{4}{3} \pi (5)^3

4 0
3 years ago
Read 2 more answers
Round 1.595 to 2 decimal places
Karo-lina-s [1.5K]
1.595 to 2 decimal points is 1.60 because the second decimal place is nearest to 10.
3 0
3 years ago
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