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3 years ago

11

What is the slope of this problem?

1 answer:

maksim [4K]3 years ago

6 0

Answer:

The slope of the problem is 4.

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X^2+10x-y+15=0 what is the vertex of this parabola?

LuckyWell [14K]

$\displaystyle\bf\\x^2+10x-y+15=0\\\\y=x^2+10x+15\\\\\Delta=b^2-4ac=10^2-4\cdot15=100-60=\boxed{\bf40}\\\\Vertex~is~~V\Big(x=\frac{-b}{2a};~~y=\frac{-\Delta}{4a} \Big)\\\\\\V_x=\frac{-b}{2a}=\frac{-10}{2}=\boxed{\bf-5}\\\\\\V_y=\frac{-\Delta}{4a}=\frac{-40}{4}=\boxed{\bf-10}\\\\\\\implies~\boxed{\boxed{\bf~V\Big(-5;~-10\Big)}}$

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3 years ago

In a certain city, the monthly cost of residential electric service is given by the function C = 0.08n + 12, where n is the numb

Anarel [89]

Answer:

be able to make it to the meeting tonight but I can tomorrow if you have time can you come to my house and I will be there

3 0

3 years ago

the accumulated at 4/5 inch/hour if the snow continues at this rate for 10 hours, how much snow will accumulate

vichka [17]

Answer:

8 inches

Step-by-step explanation:

4/5 * 10/1 = 40/5 = 8inches

7 0

3 years ago

Please help me with algebra part B and C. attachment below. Will mark as brainslist. 25 points.

miv72 [106K]

Answer:

C. $(-7x+60)(x+4)$

Step-by-step explanation:

Consider the expression $-7x^2+32x+240.$

First, note that

$a=-7\\ \\b=32\\ \\c=240$

Find the discriminant

$D=b^2-4ac=32^2-4\cdot (-7)\cdot 240=1,024+6,720=7,744\\ \\\sqrt{D}=\sqrt{7,744}=88$

Now,

$x_1=\dfrac{-b+\sqrt{D}}{2a}=\dfrac{-32+88}{2\cdot (-7)}=-4\\ \\x_2=\dfrac{-b-\sqrt{D}}{2a}=\dfrac{-32-88}{2\cdot (-7)}=\dfrac{60}{7}$

Write the factored form:

$-7x^2+32x+240=-7(x-(-4))\left(x-\dfrac{60}{7}\right)=(x+4)(-7x+60)$

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3 years ago

Please help I don’t know how to-

aivan3 [116]

Answer:

y is going back by 3's x is going back one

Step-by-step explanation:

3 0

3 years ago