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3 years ago

What is the equation of the graphed linear model? y = ? x + ?

Mathematics

1 answer:

miss Akunina [59]3 years ago

5 0

Use slope intercept form for equation, which is y = mx +b. m is slope and b is the y-intercept.

Find slope by change in y over change in x. So pick two points, for example (0, 24) and (2, 20). Slope (m) will be
(y2-y1)/(x2-x1)
= (24-20)/(0-2)
= 4/-2
m = -2

Y-intercept is 24.

Equation is y = -2x + 24

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If a day was a year, how many does it take to make a million years?

Tasya [4]

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1,000,000 divided by 365.

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3 years ago

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The dual bar chart shows the hair colour of boys and girls in a year group. What fraction of the students are girls? Give your a

Tems11 [23]

Answer:

5/11

Step-by-step explanation:

Black= 22 b+17 g

Brown= 4 b +18 g

Blonde= 25 b+ 10 g

Red= 21 b+ 15 g

Total number= 22+17+4+18+25+10+21+15= 132

Number of girls= 17+18+10+15= 60

Girls are 60/132= 2 × 2 × 3 × 5/ 2 × 2 × 3 × 11= 5/11 of all students

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3 years ago

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Leviafan [203]

Answer:

[-11/5,∞)

Step-by-step explanation:

1. Add 4 to both sides: 7x-4+4≥-15+2x+4

2. Simplify: 7x≥2x-11

3. Subtract 2x from both sides: 7x-2x≥2x-11-2x

4. Simplify: 5x≥-11

5. Divide both sides by 5: 5x/5≥-11/5

6. Simplify: -11/5

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3 years ago

20 PTS IF WRONG 1 STAR, IF RIGHT 5 STARS, THANKS, AND BRAINLIEST

Tema [17]

i think its D, (change my mind)

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3 years ago

Math hw graded on accuracy pls help!!

lubasha [3.4K]

Answer:

see below

Step-by-step explanation:

Putting n=1 into the formulas eliminates the first two choices, since they evaluate to 3.57 and 0.85, respectively, not 4.2.

Putting n=2 into the formula eliminates the third choice, because you know that 4.2(0.15) < 3.57 without even using a calculator.

The only viable choice (and the correct choice) is the last one.

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4 years ago