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3 years ago

A line has a slope of 2 and a y-intercept of 7. What is its equation in slope-intercept form? *

Mathematics

1 answer:

Debora [2.8K]3 years ago

4 0

Answer:

y=2x+7

Step-by-step explanation:

Slope intercept form is y=mx+b

m is the slope

b is the y-intercept

To put the equation into slope intercept form take the numbers you were given for the slope and y-intercept and pug them into the spot in the equation for them. In this problem that gives you y=2x+7.

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Solve the linear equation. X + 5 = -2

Vladimir79 [104]

Answer:

$x=-7$

Step-by-step explanation:

So we have the equation:

$x+5=-2$

To solve, subtract 5 from both sides. This is the subtraction property of equality:

$(x+5)-5=(-2)-5$

The left side cancels:

$x=(-2)-5$

Subtract on the right.

$x=-7$

So, our answer is -7.

7 0

3 years ago

Read 2 more answers

In China, where many couples were allowed to have only one child, the probability of a baby being a boy was 0.545. Among six ran

wariber [46]

Answer: 0.9738

Step-by-step explanation:

This is solved by the probability distribution formula for random variables where probability of determining random variable X is given by

P(X=r) = nCr * p^r * q^n-r

Where n = number of sample = 6

p = probability of success = 0.545

q = 1-p = 0.455

r = possible outcome from number of sample.

If 6 random births are chosen, Probability that at least 1 of them is a girl = 1 -[probability that none of them is a girl] = 1 - [probability that all 6 kids are boys]

Probability that all 6 kids are boys = 6C6 * 0.545^6 * 0.455^0 = 0.0262

Probability that at least one is a girl = 1 - 0.0262 = 0.9738.

6 0

3 years ago

Writing an Equa

kakasveta [241]

Answer:

Step-by-step explanation:

(3,1) lies below the vertex, so the parabola opens downwards.

Equation for a down-opening parabola with vertex (2,3):

y = a(x-2)² + 3, a<0

Plug in (3,1) and solve for a:

1 = a1² + 3

a = -2

y = -2(x-2)² + 3

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3 years ago

Please help me with this

Darina [25.2K]

The picture is blank for me. Please take clearer pictures leveled with the question! :)

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3 years ago

• Chandra bought a 2-liter bottle of

frosja888 [35]

Answer:

Step-by-step explanation:

1 liter = 33.8 fl oz

Hence

2 liter = 33.8 * 2 = 67.6 fl oz

Now, we need to determine, how many 8 fl oz glasses can be filled with 67.6 fl oz of juice. For that, we need to divide total amount of juice (in fl oz) by 8. We will get:

$\frac{67.6}{8}=8.45$

So there is enough juice to fill around 8.5 glasses, but we need to know how many FULL GLASSES can be filled, NOT PARTIAL.

Thus, we can say:

8 glasses max can be filled with 2 Liters of juice

Answer choice D is right

3 0

3 years ago