3 years ago

Which of the summation properties or formulas require the lower index to be 1? Check all that apply.

Mathematics

1 answer:

Talja [164]3 years ago

3 0

Answer:

all but the fourth option

Step-by-step explanation:

pre-calc edg 2020

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10. Write an equation in point-slope form and slope-intercept form for the line.

olga2289 [7]

We can use the points (2, -2) and (4, -1) to solve.

Slope formula: y2-y1/x2-x1

= -1-2/4-(-2)

= -3/6

= -1/2

Point slope form: y - y1 = m(x - x1)

y - 2 = -1/2(x + 2)

Solve for y-intercept.

-2 = -1/2(2) + b

-2 = -1 + b

-2 + 1 = -1 + 1 + b

-1 = b

Slope Intercept Form: y = mx + b

y = -1/2x - 1

______

Best Regards,

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3 years ago

Evaluate x + 6 if x = 2

Andrews [41]

Answer:

2+6=8

x is replaced by 2 so 2+6=8

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3 years ago

Please explain how to do it I know the answer is 30%

Andrews [41]

To find this percentage, it will make it easier if it is worded differently. Put it "15 is what percent of 50?"

To find the percentage, simply divide 15 by 50 then multiply that quotient by 100.

15 / 50 = 0.3

0.3 x 100 = 30 = 30%

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3 years ago

How manny times does 3 go into 67

Gennadij [26K]

12 times with a remainder of 1

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2 years ago

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Math help please question in the picture

Kazeer [188]

This took me a while but I'm pretty sure the answer is
$y = - \frac{1}{3} x - 1$
I had to review perpendicular bisectors but yeah it has to do with the midpoint and point slope formula

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