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3 years ago

The equation y-1=-7(x-3) is written in point-slope form. What is the y-intercept of the line?

Mathematics

2 answers:

ArbitrLikvidat [17]3 years ago

5 0

For this case we have that, the equation of the line in slope intercept form is given by:

$y = mx + b$

Where:

m is the slope

b is the cut point with the y axis

If we have:

$y-1 = -7 (x-3)$

We take it in the form $y = mx + b$ we have:

Knowing that $- * - = +$ and applying distributive property to the terms of the parenthesis:

$y = -7x + 21 + 1\\y = -7x + 22\\So,\ b = 22$

Answer:

Option D

Sphinxa [80]3 years ago

3 0

It's maybe 22 ,(-_-メ)

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In 2009, Usain Bolt set the world record for sprinting 100m in approximately 9 3/5 seconds.

Hitman42 [59]

Answer:

10 5/12 is the answer, hope this helps

4 0

3 years ago

Find the total surface area of the cylinder Leave the answer in terms of π. radius 3.5 height 6

sesenic [268]

Answer: 133/2π

Step-by-step explanation:

Area of ends:

Area of Circle = πr²

π3.5²=49/4π

There are two ends so you multiply that by 2 to get 49/2π

Area of Rest:

First, you need to find the circumference using the equation: πd

πx7=7π

Then to find the area you just need to multiply 7π by the height

7π x 6 = 42π

Total surface area

You now just need to add them together

49/2π + 42π = 133/2π

3 0

2 years ago

A park has 22 elm trees. Elm leaf beetles have been attacking the trees. After removing several of the diseased trees, there are

serg [7]

Answer: 9 elm trees were removed.

Step-by-step explanation:

Let x represent the number of elm trees removed.

The total number of elm trees in the park is 22. Elm leaf beetles have been attacking the trees. After removing several of the diseased trees, there are 13 healthy elm trees left. The equation to find the number of elm trees that were removed would be

x + 13 = 22

Subtracting 13 from the left hand side and the right hand side of the equation, it becomes

x + 13 - 13 = 22 - 13

x = 9

3 0

3 years ago

PLS HELP , ALGEBRA 2!! I WILL MARK BRAINLIEST

Oliga [24]

Answer:

1). no

2). no

Part 2

A) (3,-2)

B) (1,0),(-3,4)

C) (4,0)

D) (3,2)

Step-by-step explanation:

8 0

3 years ago

1. Find the value of 8.3 x 24.2 x 0.03. Round your answer to the nearest hundredth.

MrMuchimi

The rounded value is option B) 6.03 which is rounded to the nearest hundredth.

Step-by-step explanation:

To find the value of 8.3 x 24.2 x 0.03, we need to multiply the given numbers to get a decimal value.
And then, after getting the value of 8.3 x 24.2 x 0.03 it should be rounded to the nearest hundredth.

So, let's multiply the numbers first :

8.3 × 24.2 × 0.03 = 6.0258

The value is 6.0258

To round the value 6.0258 to the nearest hundredth :

The first number next to the decimal point represents the tenth.
The second number next to the decimal point is the hundredth.
The third number next to the decimal point is thousandth.

Therefore, to round the value to the nearest hundredth, look for the thousandth number is either less than 5 or greater and or equal to 5.

If, thousandth place is greater or equal to 5, then the hundredth number should be increased by 1.

The hundredth is 6.02 and the number in the thousandth place is 5. So add 1 to the hundredth place.

The value is rounded to 6.03 to the nearest hundredth.

5 0

3 years ago