one+four+three=eight pens.
Two pens are selected without replacement.
Need probability of selecting two black pens.
Probability of selecting first black pen is four out of eight, 4/8
Probability of selecting second black pen is three remaining black pens out of the remaining 7 pens = 3/7
Probability of both events happening is the product of the two probabilities, according to the multiplication rule.
Therefore probability of selecting two black pens out of the initial eight pens
=(4/8)(3/7)=3/14=0.2143 (to the ten-thousandth).
Rounding to the hundredth will give you the required answer.
Answer:
Sue
Step-by-step explanation:
Sue will charge for the first hour and 9 additional hours, for a total of ...
$15 +9·10 = $105
Vic's charge for 10 hours will use the formula for x≥8, so will be ....
9.5(10) = 95 . . . dollars
For 10 hours' babysitting, Sue will charge more.
Answer:
80-24=56
28 multiplied by 2=56
Step-by-step explanation:
Answer <u>(assuming it can be in slope-intercept form)</u>:
Step-by-step explanation:
1) First, find the slope of the line by using the slope formula, . Substitute the x and y values of the given points into the formula and solve:
So, the slope is .
2) Now, use the point-slope formula to write the equation of the line in point-slope form. Substitute real values for the , , and in the formula.
Since represents the slope, substitute in its place. Since and represent the x and y values of one point the line intersects, choose any one of the given points (either one is fine, it will equal the same thing at the end) and substitute its x and y values into the formula as well. (I chose (0, -7), as seen below.) Then, isolate y to put the equation in slope-intercept form and find the following answer:
Answer:
tens place and a ones place it even says it ;-;
Step-by-step explanation: