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LUCKY_DIMON [66]

2 years ago

11

Jenna often babysits to earn extra money. On Friday night, she made $42 for babysitting 3 hours. On Saturday night she made $63

for babysitting 4.5 hours

1 answer:

Tresset [83]2 years ago

5 0

Answer:

4 hours

Step-by-step explanation:

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Write the equation of the line given the slope 2 and one point on the line (2, -4)

ELEN [110]

Point Slope Form:
$y - ( - 4) = 2(x - 2)$
Slope-intercept Form:
$y = 2x$

6 0

3 years ago

A student answers a multiple-choice examination question that offers four possible answers. Suppose the probability that the stu

Salsk061 [2.6K]

Answer:

The value is $P(A | W) = 0.941$

Step-by-step explanation:

From the question we are told that

The probability that the student knows the answer to the question is $P(A) = 0.8$

The probability that that the student will guess is $P(G) = 0.2$

The probability that that the student get the correct answer given that the student guessed is $P(W /G) = 0.25$

Here W denotes that the student gets the correct answer

Generally it a certain fact that if the student knows the answer he would get it correctly

So the probability the the student got answer given that he knows it is

$P(W | A) = 1$

Generally from Bayes theorem we can mathematically evaluate the probability that the student knows the answer given that he got it correctly as follows

$P(A | W) = \frac{ P(A) * P(W | A )}{ P(A) * P(W | A) + P(G) * P(W| G)}$

=> $P(A | W) = \frac{ 0.8 * 1}{ 0.8 * 1+ 0.2 * 0.25}$

=> $P(A | W) = 0.941$

4 0

3 years ago

I need help solving quadratics

jolli1 [7]

Quadratic equations are the equations that can be re arranged in the linear or the standard form.

<u>Explanation:</u>

In algebra, a quadratic equation is any condition that can be adjusted in standard structure as where x speaks to an unknown, and a, b, and c speak to known numbers, where a ≠ 0. On the off chance that a = 0, at that point the condition is straight, not quadratic, as there is no term.

Quadratic equations are really utilized in regular day to day existence, as while ascertaining regions, deciding an item's benefit or figuring the speed of an article. Quadratic conditions allude to conditions with in any event one squared variable, with the most standard structure being ax² + bx + c = 0.

8 0

2 years ago

1.)The ratio of the number of boys and girls in class is 10:7. If there are 35 girls, find the number of boys.

mestny [16]

Answer:

There are 50 boys.

Explanation:

Basic calculation: $\frac{35}{7} * 10$ → 50 boys.

3 0

2 years ago

Read 2 more answers

(3x3 - 2x2 - 7x + 6) = (x + 1) synthetic division

ValentinkaMS [17]

Answer:3/2

3x3-2x2-7x+6=x+1(Multiply the numbers)

9-4-7x+6=x-1(Calculate)

11-7x=x-1(Move the terms)

-7x-x=-1-11(Collect like terms&calculate)

-8x=-12(Divide both sides by -8)

x=3/2

7 0

3 years ago