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Dmitry [639]
3 years ago
14

I'm not sure how to solve the systems of equations problem below

Mathematics
1 answer:
Viefleur [7K]3 years ago
3 0
Solve the lower equation first

+12 on each side
7x=51
divide by 7
x=51/7

then use that to solve the upper equation
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What are the 3 parts of a number which is written in scientific notation ​
nekit [7.7K]

Answer:

0.000 000 000 1 metres wide! Numbers in scientific notation are made up of three parts: coefficient, base and exponent.

Step-by-step explanation:

Idk if you are looking for this ans.

5 0
4 years ago
What is the answer for 6r^2-10r-24
FrozenT [24]
6r^2-10r-24 =0\\ \\a=6, \ b= -10, \ c= -24 \\ \\ \Delta =b^2-4ac =  (-10)^2 -4\cdot6\cdot  (-24) =  100+576 = 676 \\ \\ r_{1}=\frac{-b-\sqrt{\Delta }}{2a}=\frac{10-\sqrt{676}}{2\cdot 6 }=\frac{ 10-26}{12}= \frac{-16}{12}=- \frac{4}{3} \\ \\r_{2}=\frac{-b+\sqrt{\Delta }}{2a}= \frac{10+\sqrt{676}}{2\cdot 6 }=\frac{ 10+26}{12}= \frac{36}{12}=3\\ \\   6r^2-10r-24  = 6(r+\frac{4}{3})(r-3)=(6r+8)(r-3)\\ \\ \\ Answer : \ 6r^2-10r-24 =(6r-8)(r-3)
8 0
4 years ago
I need Help Plssss!!!♥
nata0808 [166]

Step-by-step explanation:

such a rectangular prism is in that sense like a cube (or die) : it has 6 sides or surface areas. top, down, front, back, left, right.

to get the total surface area we need to calculate each individual side area and sum all 6 of them up.

since it is a rectangular shape, there are 3 pairs of equal side areas, so, we really need to calculate only 3 different ones :

front and back : each is

10×9 = 90 in², both together are 180 in²

left and right : each is

8×9 = 72 in², both together are 144 in²

top and bottom : each is

10×8 = 80 in², both together are 160 in²

the total surface area of the prism is

180 + 144 + 160 = 484 in²

7 0
3 years ago
Write an expression using the distrubtive property that can be used to find the quotient 56÷4
Sergio039 [100]
56/4 divided by 2 » (56/4) ÷ 2 » 14 ÷ 2 = 7
7 0
3 years ago
100 POINTS
labwork [276]
Simple.....

using \frac{ y_{1}- y_{2}  }{ x_{1}- x_{2}  }

--->>>

Take any of the points on the line-->> (0,0) and (15,5)

\frac{0-5}{0-15} = \frac{-5}{-15} = \frac{1}{3}

This is your slope-->>\frac{1}{3}

To check it..go one up then three over...does it hit the coordinates? Yes.

Thus, your answer, D.
3 0
3 years ago
Read 2 more answers
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