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4 years ago

Please Help!!! 30 Points

Mathematics

1 answer:

Alona [7]4 years ago

8 0

Answer:

c lololololo

Step-by-step explanation:

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7x-4y=-7 what is x and y

Drupady [299]

Answer = x=-1+4/7y ......... I hope correct answer

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3 years ago

What is the slope of a line parallel to 5x-3y=-10

Llana [10]

For parallel lines, slopes are equal.
5x - 3y = -10
3y = 5x + 10
y = 5/3 x + 10/3

Required slope = 5/3

7 0

3 years ago

I need help please and thank you

vivado [14]

Step-by-step explanation:

diameter i.e. d = 12ft

radius i.e r= 6ft

Area of the circle is given by,

$\pi {r}^{2} = 3.14 \times {(6)}^{2}$

$= 3.14 \times 36 = 113.04 \: \: {ft}^{2}$

8 0

4 years ago

Explain how you can use fraction strips or number lines to show that three fourths and six eighths are equivalent.

Aneli [31]

Answer:

Step-by-step explanation:

Put two rectanagles on top of each other

Divide one into fouth equal peices and one into eight equal peices.

Color 3 peices into the 4 peice shape

Color 6 peices into the 8 peice shape.

The 3/4 peices should be the same length of the 6/8 peices.

5 0

3 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