Rosa throws a ball. The equation d = −t^2 + 4t + 5 represents the path taken by Rosa's ball where d is the height of the ball (in feet) after t seconds. How long was the ball in the air?
A. 1 second
B. 4 seconds
C. 5 seconds
D. 9 seconds
Answer:
B
Step-by-step explanation:
-t²+4t+5=0
t²-4t-5=0
t²-5t+t-5=0
t(t-5)+1(t-5)=0
(t-5)(t+1)=0
t=5,-1
when t=0,d=5
actual time it it is in air=5-1=4 seconds.
Evaluate each expression for the given variable.
(5) 3(x + 4) - x when x = 2
2
(6) 5p + 9 + 2p + 5 when p = 5
2 3
Step-by-step explanation:
1.) 3(x + 4) - x. when x - 23(2 + 4) - 2
3 × 6 - 2
18 - 2 = 16
2.) 5p+9+2p+5. when p - 55 × 5 + 9 + 2 × 5 + 5
25 + 9 + 10 + 5
49.
if Sonja makes $2100 interest after investing $15,000 at 2.8%, how many years did she invest for?
Answer:
Sonja invested for 5 years.
Step-by-step explanation:
First you have to find how much money she gets in one year.
To do this you would have to multiply 15,000 and 2.8.
15,000 x 2.8 = 42000
You move the decimal 2 spaces forward since there are 3 zeros in 15,000 and one decimal place in 2.8.
This gives you 420.
To find how many years it takes for her to make $2100 you have to divide
2,100/420.
This gives you 5, which means that she invested for 5 years.
What should be done to solve the following equation?
(7.5)x = 45
Subtract 0.5 from both sides, then divide each side by 7.
Divide each side by 7.5.
Divide each side by 45.
Multiply each side by 7.5.
Answer:
dived by 7.5
Step-by-step explanation:
Are the two outcomes listed are equally likely to occur. Give a reason for your answer.
Selecting the letter a or k from the word "TAKE"
Your answer:
Answer:
Yes. When looking at the word "TAKE" you can see that there are four letters. The probability of selecting the letter 'a' would be 1/4. The probability of selecting the letter 'k' would also be 1/4. This is because they are 1 out of 4 of the letters making up the word "TAKE". So, the outcomes are equally likely to occur.
Hope this helped.
Solve for X
3(x-4)=12.
Answer: x=8
Step-by-step explanation:
3(x-4)=12
Distribute the 3 into the parathesis'
3x-12=12
+12 +12 on each side
3x=24
Divide by 3 on each side
x=8
proof that ur lying.
Answer:
HELLOOOO
Step-by-step explanation:
JUST WANTED TO SAY THAT BTS IS THE BEST IN KPOP :)
Answer:
lolol
Step-by-step explanation:
Find the area of a circle whose circumference is 31.4 centimeters. (Pi form) {FREE BRAINLIEST]
A =
__
cm2
Answer:
78.46 cm^2
Use area formula
Answer:
78.5 cm²
Step-by-step explanation:
tell me if i got it wrong
Two interior angles of a triangle measure 64° and 81°.
What is the measure of the third interior angle of the triangle?
What is the slope of the line that goes through the points (-3, 8) and (0, 23)?
-5
-23/8
5
31/3
Answer:
5
Step-by-step explanation:
(-3, 8) and (0, 23)
m=(y2-y1)/(x2-x1)
m=(23 - 8)/(0+3)
m=(15)/3
m = 5
NEED HELP PLZ!!!!!!!!!
Answer:
y=25x-300
Step-by-step explanation:
We have to take the 300 out of the equation because that is getting taken away due to payment. She gains 25 per hour x being hours therefore being solved.
Vic has 3 pairs of pants, blue, brown and black. He has 2 dress shirts, white and striped. He can also wear a yellow or green tie. How many possible combinations of pants, shirt, and tie can Vic make?
PLEASE HELP I WILL GIVE BRAINLEST FOR RIGH ANSWER!!
Line A passes through the points (3,4) and (-1,2). Line B passes through the points (-12,0) and (-6,-4). At what point do the lines intersect?
The figure can be composed of different shapes.
What shape can be composed to find the area of the figure? What is the area?
A. square; 140 square inches
B. rectangle; 151.2 square inches
C. square; 151.2 square inches
D. rectangle; 140 square inches
The area of the composed figure will be 140 square inches. Then the correct option is D.
What is the area of the parallelogram?Let H be the height and W be the width of the parallelogram. Then the area of the parallelogram will be given as,
Area of the parallelogram = H × W square units
The figure can be composed of different shapes.
The composed figure is a parallelogram. The dimension of the parallelogram is 10 inches high and 14 inches wide base. Then the area of the parallelogram is calculated as,
A = 10 x 14
A = 140 square inches
The area of the composed figure that is a parallelogram will be 140 square inches.
The parallelogram is made from a rectangle. Thus, the correct option is D.
More about the area of the parallelogram link is given below.
https://brainly.com/question/16052466
#SPJ3
Use the formula to calculate the number of diagonals in a 88-gon.
Answer:
Eh cafe donete mal reo jama kolotake? 24 eh moi -09....? kelare mei osaje.
car`e 3,000 = 2458.0? maro et
Step-by-step explanation:
Number of diagonals in a 88-gon = 3740
Step-by-step explanation:
Number of diagonals of a polygon
(where 'n' is the number of sides)
[tex] = \frac{n \times (n - 3)}{2} [/tex]
[tex] = \frac{88 \times (88 - 3)}{2} [/tex]
[tex] = \frac{88 \times (85)}{2} [/tex]
[tex] = \frac{7480}{2} [/tex]
[tex] = {3740} [/tex]
The original price of a pair of jeans was $40. The price was marked down to $35. What is the percent of decrease in the price?
Answer:
8 procent
Step-by-step explanation:
first i did 40/8=5 .
and then 40-5=35
I. You withdraw $17 from your account.
II. A running back loses 17 yards in a game.
III. The temperature rises 17 degrees
The integer -17 would BEST represent which of these events?
A)I only
B)III only
C)I and II only
D)II and III only
Answer:
Step-by-step explanation:
Answer:
b
:[] yup this ia s rjkd. skd
A toy store owner tracking how much kids spend each month on toys. Which choice best represents a population?
explain how to find the slope of a line through two points on a table
Answer:
you use slope formula m=y2-y1/x2-x1
m=21-11/5-3=15.8
Step-by-step explanation:
so the 3 points you have are (-1,-9) (3,11) (5,21)
so i'm going to choose (3,11) and (5,21) 3 is x1 11 is y1
5 is x2 11 is y2
m=y2-y1/x2-x1
m=21-11/5-3=15.8
good luck :)
hopefully, this helps
have a great day !!
Suppose a different student reaches in the bag, randomly selects their twenty chips, and estimates that 60% of the students are male. Based on this sample, what is a good estimate for the number of enrolled university students that are female?
Addison wants to ride her bike more than 80 miles this week. She has already ridden her bike 18 miles, which inequality could be used to determine the number of miles,m, she would need to ride her bike for the 6 more days to achieve her goal.
Answer:
she should ride her bike 3 miles for 6 days to reach her goal
Step-by-step explanation:
HELPPPP PLS
A fair coin is flipped 20 times. If the coin lands on
heads 13 times, which statement is true?
A. The coin lands on heads 3 less times than
expected.
B. The coin lands on heads 3 more times than
expected.
C. The coin lands on heads 5 less times than
expected.
D. The coin lands on heads 5 more times than
expected.
What is the answer I need help I tried 49 time and I said it was wrong help
Answer:
1530
Step-by-step explanation:
I believe that is the answer
u just divide the 3rd column by 3 thats how I did it
hope this helped :)
im stuck on these 2 questions
Answer:
In the first question it is the 2nd table. On the second it is : No, the xost of the 9 shirts is incorrect
Answer:In the first question it is the 2nd table
Step-by-step explanation:
I’ll give brain list
Answer:
i hope i dont have to learn that sh*t
Step-by-step explanation:
common sense
Which of the following images has an angle highlighted in red?
Figure A
Figure B
Figure C
Figure D
Answer:
Figure B
Step-by-step explanation:
Hope this is right! Let me know !
Thanks!
2. After conducting an experiment, a science student found that the force, y,
exerted by a hanging object increased as the mass of the object, X,
increased. Which scatterplot could represent the results of the experiment?
I need help the answers for each answer are in the drop-down menu
Answer:
they are supplementary
corresponding
alternate exterior
vertical
alternative interior
help plsssssssssssssssssssssssssssssssssssssss
Answer:
I believe they are not.
Step-by-step explanation:
The reason for this is that in the first algebraic expression there are parentheses which means you must do anything inside the parentheses first. On the other hand, the second expression doesn't have parentheses so you'll end up subtracting 3 from x, also not 100% sure!!
Answer: no answer but I talk too u on here tho
Step-by-step explanation:
Andre is waiting for the schoo! bus. He knows that 2 out of 6 cars in his town are white. He wants to determine the probability that at least two white cars drive by in a row. He uses a number cube as a
simulation. He lets the numbers 1 and 2 represent a white car and lets all other numbers represent a car that is not white. He rolls the number cube 6 times and records the outcomes in the table below.
Trial Number Outcome
| 4, 3, 6, 1, 2, 4
5,5, 1,3,6,6
1
2
3
2,5,4,4, 1,3
4
6.1.5.6.6.4
5
2. 1, 2, 6, 4,5
6
3. 3. 1.4.2.6
7
1.5.6.2.2.3
8
3.6. 4. 3.4.4
9
1. 1. 2. 1.5.6
10
4.3.3. 1,5,2
Based on the data, what is the probability that at least 2 white cars drive by in a row?
Answer:
2 x 6 =12
Step-by-step explanation: