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Alenkinab [10]
2 years ago
6

6. Which of the following is true about the

Mathematics
1 answer:
Gnom [1K]2 years ago
5 0
C.
Y=mx + b is the formula (M being slope, and B being the y intercept) always start by going up or down by what the y-intercept number is, if it’s -9 you go down the y axis 9 numbers from the origin (0,0) and slope (m) is always better put in a fraction-5x is better put in -5/1x
Think of the top number of the fraction as ‘up/down’ and the bottom number as ‘over’ if the top number is negative you will go down from the y-intercept number that many times, the bottom number is how many spots you go over from that number , it is always to the right.
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What is the approximate length of arc s on the circle below? Use 3.14 for pi. Round your answer to the nearest tenth.
astraxan [27]

Answer:

B 6.3

Step-by-step explanation:

r = 8

l = 2*3.14*r

l = 50.24

s=l/360*45

s≈6.3

7 0
3 years ago
Read 2 more answers
1. SAT Math scores in recent years have had means around 490 and standard deviations
tatiyna

Answer:

´The variance is 10000

Step-by-step explanation:

The variance is defined as the square of standard deviation, consequently it is as follows:

σ^2=100^{2}

σ^2=10000

3 0
3 years ago
A package of colored markers has 8 markers. The graph below shows the total numbers of markers in different numbers of packages.
photoshop1234 [79]

Answer:

m= 8p

Step-by-step explanation:

you multiple 8 by the number of packages because there are 8 markers in each package.

5 0
3 years ago
Read 2 more answers
The equation x2 - 12x - 60 = -y2 - 4y describes a circle in the coordinate plane. find the radius of the circle and the coordina
34kurt

Answer:

r = 10 , centre = (6, - 2 )

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

given

x² - 12x - 60 = - y² - 4y ( add y² + 4y to both sides )

x² - 12x + y² + 4y - 60 = 0 ( add 60 to both sides )

x² - 12x + y² + 4y = 60

using the method of completing the square

add ( half the coefficient of the x and y terms )² to both sides

x² + 2(- 6)x + 36 + y² + 2(2)y + 4 = 60 + 36 + 4

(x - 6)² + (y + 2)² = 100 ← in standard form

with centre = (6, - 2 ) and r = \sqrt{100} = 10

8 0
2 years ago
The farmer brought 80 acorn squash to the market.
shepuryov [24]
The total number of acorn squash that the farmer brought to the market = 80
Percentage of acorn squash was less when the day ended = 35%
Then
The amount by which the
number of acorn squash decreased at the end of the day = (35/100) * 80
                                                                                             = 280/10
                                                                                             = 28
Then
The number of acorn squash left with the farmer = 80 - 28
                                                                               = 52
So from the above deduction, we can easily conclude that the farmer was left with 52 acorn squash at the end of the day.
4 0
3 years ago
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