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2 years ago

What are the m (slope) and b (y-intercept) of y = 3x - 2?

Mathematics

1 answer:

makkiz [27]2 years ago

5 0

Answer:

slope is 3 Y is -2

Step-by-step explanation:

Whenever a number is in "x" its slope. The number always after that is Y so slope is 3 and Y is -2

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two bags each contain blue marbles and black marbles. the first contains 4 blue marbles and 6 black marbles and the second bag c

amid [387]

There are two bags: a bag with 4 blue marbles and 6 black marbles and another one containing 6 blue marbles and <span>6 black marbles. the probability of getting a blue marble in the first bag is 6/10 or 3/5 while that on the second bag is 6/12 or 1/2. Hence the total probability of getting two marbles is c. 3/10. </span>

4 0

3 years ago

Which statements about finding the area of the equilateral triangle are true? Check all that apply.

lara31 [8.8K]

Answer:

The correct options are 1, 2 and 4.

Step-by-step explanation:

The given triangle is an equilateral triangle. All the sides of an equilateral triangle are same. All interior angles are equal with measure 60 degree.

The distance from the center of an equilateral triangle to the midpoint of a side is known as apothem. In the given figure letter a represents the apothem.

Point D is the midpoint of BC,

$b=\frac{BC}{2}=\frac{8.7}{2}=4.35$

Use Pythagorean theorem in triangle COD. So, option 1 is correct.

$OC^2=OD^2+DC^2$

$5^2=a^2+(4.35)^2$

$25=a^2+18.9225$

$a=\pm 2.46526$

$a\approx\pm 2.5$

The distance can not be negative, so the length of the apothem is approximately 2.5 cm. Option 4 is correct.

The line OC bisects the angle C.

$tan(30^{\circ})=\frac{a}{b}$

$\frac{1}{\sqrt{3}=\frac{a}{4.35}$

$a\approx\pm 2.5$

Therefore option 2 is correct.

The perimeter of an equality triangle is

$P=3a=3(8.7)=26.1$

Option 3 is incorrect.

$A=\frac{\sqrt{3}}{4}a^2=\frac{\sqrt{3}}{4}(8.7)^2=32.77$

Option 5 is incorrect.

Therefore options 1, 2 and 4 are correct.

3 0

3 years ago

Read 2 more answers

How can you write the improper fraction 263/10 as a decimal?

insens350 [35]

Answer:

263/10 as a decimal equals 26.3

Step-by-step explanation:

To write 263/10 as a decimal you have to divide numerator by the denominator of the fraction.

We divide now 263 by 10 what we write down as 263/10 and we get 26.3

hope this answer correct :)

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3 years ago

She has found that 5 out of 7 seeds produce corn. She wants to have 10,000 corn bearing plants. How many seeds should see plant

Anton [14]

It would take 70,000 seeds if five out of seven are good. So over a quantity of 50,000 plants desired, you would sow 70,000 seeds. As 20,000 would statistically fail.

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3 years ago

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blsea [12.9K]

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Answer A. (x<1)

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Answer A.

3.

Answer A. (x<0)

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Answer D. (x>2.5)

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3 years ago