Answer:
A
Step-by-step explanation:
The velocity of a moving body is given by the equation:
[tex]v=t^2-5t+4 ,\, t\geq0[/tex]
Is the velocity is positive (v>0), then our object will be moving forwards.
And if the velocity is negative (v<0), then our object will be moving backwards.
We want to find between which interval(s) is the object moving backwards. Hence, the second condition. Therefore:
[tex]v<0[/tex]
By substitution:
[tex]t^2-5t+4<0[/tex]
Solve. To do so, we can first solve for t and then test values. By factoring:
[tex](t-4)(t-1)=0[/tex]
Zero Product Property:
[tex]t=1, \text{ and } t=4[/tex]
Now, by testing values for t<1, 1<t<4, and t>4, we see that:
[tex]v(0)=4>0,\, v(2)=-2<0,\,\text{ and } v(5)=4>0[/tex]
So, the (only) interval for which v is <0 is the second interval: 1<t<4.
Hence, our answer is A.
The temperature in Tampa increased from 4 a.m. to 4 p.m. on one day in February the tables of values below represents temperatures as a function of time
Answer:
from 6:53 a.m. to 8:53 a.m.
Step-by-step explanation:
:)
Divide. Give the Divide. Give the quotient and remainder.
254 divided 8
Quotient:
Remainder:
Step-by-step explanation:
254 = 8 * 30 + 8 * 1 + 6
= 8(30 + 1) + 6
= 8 * 31 + 6.
Hence the quotient is 31 and the remainder is 6.
Answer:
254/8=31.75
Step-by-step explanation:
The remainder of 254 divided by 8 is 6
Write -4.74 as a mixed number
Answer:
4.75 = 475/100 = 19/4 = 4 3/4
Approximate value(s):
4.75 =~ 4 (error = -15.789473%)
[tex] - 4.74[/tex]
[tex] = - 4 + 0.74[/tex]
[tex] = - 4 + \frac{74}{100} [/tex]
[tex] = - 4 + \frac{37}{50} [/tex]
[tex] - 4 \frac{37}{50} [/tex]
Javier is considering two options for college.
Option A: Complete the first two years of schooling at a community college
and then transfer to a university.
Option B: Complete all four years of schooling at the university.
Community College Financial Analysis
Costs per Year
Financial Aid Package per Year
Tuition & Fees
Scholarships & Grants
$3,000
$1,000
Room & Board
$1,000
University Financial Analysis
Costs per Year
Financial Aid Package per Year
Tuition & Fees
Scholarships & Grants
$10,000
$15,000
Room & Board
Work-Study
$11,500
$4,000
Which statement about the cost of the options is true?
Option B will save him $1,000.
Option B will save him $2,000.
Option A will save him $14,000.
Option A will save him $17,500.
Answer:
A
Step-by-step explanation:
I got it right in Edginuity.
Answer:
A
Step-by-step explanation:
HELP PLEAASE I AM GOING TO EXPLODE WITH SAD WILL GIVE BRAINLIEST
Answer:D
Step-by-step explanation:i don’t know I’m guessing
Two cars start from the same point and move in a straight line, one east at a speed of 60 km per hour and the other west at a speed of 80 km per hour. After what time will they live at a distance of 770 km?
Answer:
5.5 hours
Step-by-step explanation:
Given that :
Speed of A = 60 kmphr
Speed of B = 80 kmphr
After what time will distance = 770 km
Speed * Time = Distance
Let time = x
Distance A + Distance B = 770
(60 * x) + (80 * x) = 770
60x + 80x = 770
140x = 770
x = 770 / 140
x = 5.5 hours
Four points are labeled on the number line.Which point represents the value |-1 1/2|?
Answer: -1
Step-by-step explanation:
i really don't know but i was taking a test and i guessed it and it was right
Answer:
Point Q -0.5
Step-by-step explanation:
Negative 1/2 is equal to -0.5
A family on vacation traveled 180 miles in 3 hours. If their rate of speed was constant,
how many miles did they travel in one hour?
O 180 miles
O 540 miles
60 miles
54 miles
Answer:
Step-by-step explanation:
180/3=60
so 60 miles
Answer:
60 miles
Step-by-step explanation:
Since their speed is constant, you just do 180 miles divided by 3 hours to get 60 miles per hour.
On Saturday, Mrs. Colton buys 2
soda cans for $1.50. On Sunday.
she spends $2.52 on a 4-pack.
Which is a better deal?
Help me I am stuck ❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❕❗️
Answer:
8. x=-5 and y=7
9. x=-2 and y=0
10. x=-6 and y=-10
11. x=8 and y=-4
12. x=9 and y=-9
13.x=4 and y=10
14. x=5 and y=-7
Step-by-step explanation:
Answer:
8. x=-5 and y=7
9. x=-2 and y=0
10. x=-6 and y=-10
11. x=8 and y=-4
12. x=9 and y=-9
13.x=4 and y=10
14. x=5 and y=-7
Step-by-step explanation:
In the expression -3g + 12, how many terms are in the expression? *
1
2
3
4
Which expression has three terms? *
5x + kr
3ab
6 + x - 2y
4p + 2
Answer:
There are 1 terms.
5x+kr has 3 terms
Step-by-step explanation:
-3g has 1 term. 12 has none. so it is 1
5x has 1 term and kr has 2 terms and 2+1 is 3 terms.
Determine whether each sequence is arithmetic, geometric, or neither. Then find a formula for the nTh term of the sequence 2/5,3/6,4/7,5/8
Step-by-step explanation:
3/6 - 2/5 = 0.1
4/7 - 3/6 = 0.071
5/8 - 4/7 = 0.053
Since there is no common difference d, the sequence is not arithmetic.
(3/6) / (2/5) = 1.25
(4/7) / (3/6) = 1.14
(5/8) / (4/7) = 1.09
Since there is no common ratio, the sequence is not geometric.
Hence the sequence is neither an AP or GP.
Formula for nth term: (n + 1)/(n + 4).
Answer:
Try!
Step-by-step explanation:
10 x 1/2+(-6)(-3) simplified in steps
Answer:
23
Step-by-step explanation:
Remember PEMDAS/order of operations (Parentheses, exponent, multiplication, division, addition, subtraction)
10*1/2+(-6)(-3)
10*1/2+18
5+18
23
Determine the x-intercept of the line whose equation is given: Y = 4x + 2
a. (0, 2)
b. (-2, 0)
c. (0, - 1/2
d. (- 1/2, 0)
Answer:
d
Step-by-step explanation:
Your boss sends you an email and explains that your fourth location is to Ellis Island to visit the Statue of Liberty. She emails you a scale drawing that one of the architectures in Spain created. On the scale drawing, a scale of 1/61 <—(a fraction) (inches to feet) was used, the height of the statue was 5 inches. How tall is the Statue of Liberty?
(Please explain thoroughly step by step on how you solved the problem.If you can,please provide an image on how you solved the problem.)
Answer:
305 feet
Step-by-step explanation:
We can name the actual height x so we get the equation [tex]\frac{1}{61}x = 5[/tex]. Multiply both sides by 61 to get [tex]x=305[/tex]. The answer would be feet because it wouldn't make sense if the statue of liberty was 305 inches
I GIVEEEEEE BRAINLILSTER
Answer:
D 54 I did this
Step-by-step explanation:
Identify whether each phrase is an expression, equation, or inequality
Answer:
Top stays the same
Middle and bottom switch
Step-by-step explanation:
Which statement is true about the value of 1-512
It is the distance that -5 is from 0 on the number line,
It is the distance that -5 is from 5 on the number line.
O It is less than 5.
It is greater than 5.
Answer:
It is the distance that -5 is from 0 on the number line
Step-by-step explanation:
I learned this last month
Hope this helps
Answer:
A. It is the distance that -5 is from 0 on the number line.Step-by-step explanation:
The question should read:Which statement is true about the value of |-5| ?SolutionThis is about absolute value. It is always positive. The choices:
A. It is the distance that -5 is from 0 on the number line.
Correct, the distance 0 to -5 is actually 5 and its true.B. It is the distance that -5 is from 5 on the number line.
Incorrect, it would make 5 - (-5) = 10 unitsC. It is less than 5.
Incorrect, its exactly 5D. It is greater than 5
Incorrect, its exactly 5.drag the dot (-5,-9),amd then select its location on the coordinate plane .
Answer:
The diagram is attached below which shows the location of the point (-5, -9)
Step-by-step explanation:
Given the point
(-5, -9)The location of the point (-5, -9) can be determined by locating the point at x=-5 and y = -9.
Please check the attached diagram where I located the point (-5, -9).
From the attached diagram, it is clear that:
Moving 5 units to the left from the origin (0, 0) and then moving 9 units down would get us to the location x = -5 and y = -9.
The diagram is attached below which shows the location of the point (-5, -9)
what is the diameter of a circle of area 3850 m square
Answer:
70.01
steps by-step explanation:
What is the awnser please!! -5r + 6 < -5(r + 2)
Fran used a graphics program to reduce a
digital image. The original dimensions of the
image were 20 cm wide by 12 cm long. She
used a scale factor of 0.6. What are the
dimensions of the reduction?
Answer:
The reduced dimensions are:
Width = 12 cm
Length = 7.2 cm
Step-by-step explanation:
Original dimensions of Image:
Width = 20 cm
Length = 12 cm
Fran reduced the dimensions using a scale factor of 0.6
We need yo find dimensions of reduction.
We would multiply the original dimensions by 0.6 to find the new dimensions.
So, Width = 20 * 0.6 = 12
length = 12 * 0.6 = 7.2
So, the reduced dimensions are:
Width = 12 cm
Length = 7.2 cm
the standard ratio of a photo's width to it's length is 2/3. what is the length of a photo that has a width of 14 inches?
A. 9.3
B. 17
C. 20
D.21
Answer:
The answer is D.21.
Step-by-step explanation:
You have to divide 14 by 2/3 and you get 21.
PLZ mark me Brainliest!
geometry help please!!
Answer:
a. 75°
Step-by-step explanation:
[tex] m\angle A = m\angle C... (given) [/tex]
[tex] (2x+15)\degree = (3x - 15)\degree [/tex]
[tex] 2x+15 = 3x - 15 [/tex]
[tex] 2x - 3x=-15-15[/tex]
[tex] - x=-30[/tex]
[tex] x=30[/tex]
[tex]\because m\angle A = (2x+15)\degree [/tex]
[tex]\therefore m\angle A = (2\times 30+15)\degree [/tex]
[tex]\therefore m\angle A = (60+15)\degree [/tex]
[tex]\therefore m\angle A = 75\degree [/tex]
Simplify to create an equivalent expression6(7-3y)+6(y+1)
Answer:
48-12y
Step-by-step explanation:
6(7-3y) + 6(y+1)
distribute the 6 on both parentheses
42-18y+6y+6
combine like terms
42-12y+6
combine like terms again
48-12y
The probability of selecting 3 female employees and 7 male employees to win a promotional trip a company with 10 female and 50 male employees would best be modeled with the _______.
Answer:
The best model is hypergeometric distribution.
Step-by-step explanation:
The probability would be best modeled with hypergeometric distribution.
Hypergeometric distribution is a discrete probability distribution that describes the probability of successes in draws, without replacement, which is often employed in random sampling for statistical quality control.
The hypergeometric distribution differs from the binomial distribution in the lack of replacements.
Thus, the best model is hypergeometric distribution.
Given ΔMNO, find the measure of ∠MNO.
Triangle MNO with segment LM forming a straight angle with segment MO and segment OP forming a straight angle with segment MO, the measure of angle NOP is 104 degrees, and segment MN and NO are marked congruent.
28 degrees
38 degrees
52 degrees
76 degrees
I know the answer is 28 degrees , I just am not sure how to work out this problem .
Answer:10907
Step-by-step explanation 10907
Answer:
The answer is 28
Step-by-step explanation:
Hope this helps,
have a great day
John runs a computer software store. Yesterday he counted 137 people who walked by the store, 56 of whom came into the store. Of the 56, only 25 bought something in the store.
A) Estimate the probability that a person who walks by the store will enter the store.B) Estimate the probability that a person who walks into the store will buy something.C) Estimate the probability that a person who walks by the store will come in and buy something.D) Estimate the probability that a person who comes into the store will buy nothing.
Answer:
John's Computer Software Store
A) Probability that a person who walks by the store will enter the store:
= 41%
B) The probability that a person who walks into the store will buy something:
= 45%
C) The probability that a person who walks by the store will come in and buy something:
= 18%
D) The probability that a person who comes into the store will buy nothing:
= 55%
Step-by-step explanation:
a) Data and Calculations:
Number of people who walked by the store yesterday = 137
Number of those who came into the store = 56
Number of people who came into the store and bought something = 25
Number of people who came into the store and bought nothing = 31 (56 - 25)
A) Probability that a person who walks by the store will enter the store:
= 56/137
= 0.4087
= 0.41
= 41%
B) The probability that a person who walks into the store will buy something:
= 25/56
= 0.4464
= 0.45
= 45%
C) The probability that a person who walks by the store will come in and buy something:
= 56/137 * 25/56
= 0.41 * 0.45
= 0.1845
= 0.18
= 18%
D) The probability that a person who comes into the store will buy nothing:
= 31/56
= 0.5536
= 0.55
= 55%
Find the distance between the points (-12.3, 15.1) and (17.5, 2). Round your answer to the
nearest hundredth.
Answer:
32.55
Step-by-step explanation:
d = 32.552266
For:
(X1, Y1) = (-12.3, 15.1)
(X2, Y2) = (17.5, 2)
Distance Equation Solution:
d=(17.5−(−12.3))2+(2−15.1)2−−−−−−−−−−−−−−−−−−−−−−−−−√
d=(29.8)2+(−13.1)2−−−−−−−−−−−−−−−√
d=888.04+171.61−−−−−−−−−−−−−√
d=1–√059.65
d=32.552266
could be confusing.
Maya's penny bank is 3/4 full. After she removes 280 pennies, it is 1/2 full. How many pennies can Maya's bank hold?
Answer:
1120
Step-by-step explanation: