Answers
76% , trust me i got it right
Related Questions
You are given the function h(t)=t2+2t+1. Find h(−2). h (-2)=
Answers
Answer:
h(-2) = 1
Step-by-step explanation:
h(t)=t^2+2t+1
h(-2) = (-2)^2 +2(-2) +1
= 4 -4 +1
= 1
Answer:
-12
Step-by-step explanation:
3√81\125 simplyfy these
Answers
Answer:
[tex]\frac{27}{125}[/tex] or 0.216
Step-by-step explanation:
Assuming you meant 3 × (√81) ÷ 125 =
3 × 9 ÷ 125 =
27 ÷ 125 = [tex]\frac{27}{125}[/tex] = 0.216
Which shape has only acute angles?
Answers
Answer:
Triangle
Step-by-step explanation:
Pls mark as brainliest
Answer:
triangle
Step-by-step explanation:
The rectangle and arrow both have right angles, so they are crossed out. The pentagon has obtuse angles, so it is also not the answer
ignore circled one and work it out please
Answers
Answer:
a. [tex]\frac{(x-7)}{x^2+x-30}[/tex]
Step-by-step explanation:
[tex]\huge \frac{x^2-3x-28}{(x^2+10x+24)(x-5)} \\\\\huge {=\frac{x^2-7x+4x-28}{(x^2+6x+4x+24)(x-5)}}\\\\\huge {=\frac{x(x-7)+4(x-7)}{\{x(x+6)+4(x+6)\}(x-5)}}\\\\\huge {=\frac{(x-7)(x+4)}{(x+6)(x+4)(x-5)}}\\\\\huge {=\frac{(x-7)}{(x+6)(x-5)}}\\\\\huge {=\frac{(x-7)}{x^2+(6-5)x+6(-5)}}\\\\\huge {=\frac{(x-7)}{x^2+x-30}}[/tex]
Amber's mean mark on five tests is 80.
Her marks on four of these tests are 68, 81, 74 and 89.
Work out her mark on the fifth test.
Answers
Answer:
The answer is 88.
Step-by-step explanation:
68+81+74+89+x/5=80
312+x/5=80
312+x=80*5
312+x=400
x=400-312
x=88
Answer:
88
Step-by-step explanation:
The mean is the total sum of all the marks divided by how many there are.
68+81+74+89=312 Total of 4 tests
80×5 = 400 Total marks on 5 tests
400-312 = 88 Total marks on 5 tests - Total marks on 4 tests = 1 test
68+81+74+89+88 = 400
The function F is defined by f(x) = 3x-5 over x+6 find f(5x)
Answers
Answer:
[tex]\frac{15x-5}{5x+6}[/tex]
Step-by-step explanation:
Given
f(x) = [tex]\frac{3x-5}{x+6}[/tex]
To evaluate f(5x) substitute x = 5x into f(x)
f(5x) = [tex]\frac{3(5x)-5}{5x+6}[/tex] = [tex]\frac{16x-5}{5x+6}[/tex]
Paul is looking at a detailed plan showing the layout of the extension with the new equipment, He knows the new oven will be 1.5 meters wide and on the plan it measures 7.5 centimeters.
What scale is used on the plan?
Answers
Answer:
Scale = 1/200 = 1 : 200
Therefore, 1 centimeter on the plan represent 200 centimeters on the original length.
Step-by-step explanation:
Scale is the ratio of the original object to the drawn plan.
Scale = plan : original
Scale = plan length ÷ original length
Plan length = 7.5 centimeters
Original length = 1.5 meters = 1,500 centimeters
Substituting the values;
Scale = 7.5/1500 = 1/200
Scale = 1 : 200
Therefore, 1 centimeter on the plan represent 200 centimeters on the original length.
Mario earns money mowing his neighbors' lawns.
The revenue for mowing x lawns is (X) = 25x.
Mario's cost for gas and the mower rental is (x) = 6x + 15.
His profit from mowing x lawns is p(x) = (r- c)(X). What is p(x)?
A. p(x) = 31x+15
B. p(x) = 19x - 15
C. p(x) = 19x+ 15
O D. p(x) = 31x- 15
SUBMIT
Answers
Answer:
His profit from mowing x lawns is 19x-15
Step-by-step explanation:
Revenue for mowing x lawns = 25x
Cost for gas and the mower rental = 6x+15
We are supposed to find His profit from mowing x lawns
p(x) denotes His profit from mowing x lawns
Profit = Revenue - Cost
So,p(x)=25x-(6x+15)
p(x)=25x-6x-15
p(x)=19x-15
So, Option B is true
Hence His profit from mowing x lawns is 19x-15
What is the equation of the parabola with focus (-2, 2) and directrix y = -1?
Answers
Answer:
(x+2)^2=6(y-1/2)
Step-by-step explanation:
What is the volume, in cubic in, of a cylinder with a height of 8in and a base radius of 2in, to the nearest tenths place?
Answers
Answer:
Step-by-step explanation:
volume of cylinder =[tex]\pi r^{2} h[/tex]
=3.14 * 2*2*8
=3.14*32
=100.48 cubic in
hope it helps .....
The volume in cubic in, of a cylinder when a height of 8in and a base radius of 2in should be 100.48 cubic inches.
Calculation of the volume:Since the height of 8in and a base radius of 2in,
So here the following formula should be used
We know that
Volume of the cyclinder
[tex]= \pi r^2h\\\\= 3.14\times 2\times 2\times 8\\\\[/tex]
= 100.48 cubic inches.
hence, The volume in cubic in, of a cylinder when a height of 8in and a base radius of 2in should be 100.48 cubic inches.
Learn more about volume here: https://brainly.com/question/14010084
A bolt is to be made 2.0 cm long with a tolerance of 4%. Set up an equation to solve for the shortest and longest bolt length. Show your original equation and the process used to find the shortest and longest bolt length.
Answers
Answer:
The equations are:
[tex]\text{shortest} = \text{length} - \frac{\text{tolerance}}{100}*\text{length}\\\text{shortest} = 2 - \frac{4}{100}*2 = 1.92\\\text{longest} = \text{length} + \frac{\text{tolerance}}{100}*\text{length}\\\text{longest} = 2 + \frac{4}{100}*2 = 2.08\\[/tex]
Step-by-step explanation:
The ideal length of the bolt is 2.0 cm, since it has a tolerance of 4%, this means that length values between [tex]2 + \frac{4}{100}*2[/tex] and [tex]2 - \frac{4}{100}*2[/tex] are acceptable, because by those expressions the length of the bolt will be 4% higher or lower than it's original length. With this in mind let's find it's values:
[tex]\text{shortest} = \text{length} - \frac{\text{tolerance}}{100}*\text{length}\\\text{shortest} = 2 - \frac{4}{100}*2 = 1.92\\\text{longest} = \text{length} + \frac{\text{tolerance}}{100}*\text{length}\\\text{longest} = 2 + \frac{4}{100}*2 = 2.08\\[/tex]
Tia measured the daily high temperature in Kats, Colorado for each of the 30 days in April. She then created both a dot plot and a box plot to display the same data (both diagrams are shown below). Which display makes it easier to see that the third quartile is 14 degrees C
Answers
Answer:
A box plot would make it easier to see that the third quartile is 14 degrees C.
Step-by-step explanation:
On a box plot, the right end of the box gives the exact value of the third quartile. On a dot plot, you would have to identify the value based on the number of dots shown.
Answer:
Box plot and dot plot
Step-by-step explanation:
Because I checked.
Follow me
get me to brainliest
Peace out
Plzzzz help
Plzz help
Answers
Answer: It starts at 2.5, and ends at 8.5.
Step-by-step explanation:
Answer:
range = 6
Step-by-step explanation:
The range = maximum value - minimum value
maximum value = 8.5 and minimum value = 2.5 ( indicated by the dots )
range = 8.5 - 2.5 = 6
8. If Rocky Massimo's credit card has a $1,329.64 balance and he charged $528.44 in new purchases, what is the new
balance?
A $1,972.32
B $1,867.45
C$896.45
D$1,858.08
NEED ANSWERS
Answers
Answer:
D: $1,858.08
Step-by-step explanation:
if u add $1,329.64 and $528.44 then you get $1,858.08
Marie dreamed of chocolate, but it lacked $10. Vaso also dreamed of a chocolate, but he lacked $1. Children decided to buy at least one chocolate for two, but they still need $1. What is the cost of the chocolate?
Answers
Answer:
10$
Step-by-step explanation:
math
Answer:
10
Step-by-step explanation:
because i know
ONE HUNDRED POINTS AND BRAINIEST! The table shows the grades earned by students in Mr. Rawson class on a math test.
Test grades
---------------------------------------------------------------
| 75.8 | 80.5 | 85.6 | 90.1 | 78.2 |
---------------------------------------------------------------
| 81.6 | 89.9 | 84.2 | 74.1 | 92.5 |
----------------------------------------------------------------
| 97.3 | 72.2 | 96.5 | 80.8 | 88.3 |
-----------------------------------------------------------------
| 94.0 | 87.9 | 76.9 | 93.7 | 73.5 |
-----------------------------------------------------------------
| 84.5 | 86.1 | 88.3 | 83.7 | 85.4 |
-----------------------------------------------------------------
A. Should the data be shown as a bar graph or a histogram?
B. Make an appropriate graph for the data. Be sure to label your graph.
Answers
Answer:
Histogram
Step-by-step explanation:
A histogram because it's more appropriate to calculate numbers like these. Unfortunally I can't make a whole graph for you tho but if you want an example of histogram this is one
Which table has a constant of proportionality between y and x of 4?
Answers
Answer:
Answer A
Step-by-step explanation:
16 / 4 = 4
36 / 9 = 4
64 / 16 = 4
Note that the symbol / is the equivalent of the division sign in math.
Answer:
A <3
Step-by-step explanation:
The table shows the proportional relationship between the time in hours (h) Sara babysits and the amount in dollars (a) Sara earns babysitting.
h a
2 8
3 12
4 16
5 20
The equation a = 5h shows the relationship between the amount in dollars (a) Abbey earns babysitting and the time in hours (h) Abbey babysits.
Which statement correctly identifies who earns more and how much more she earns?
A
Sara earns $1 more per hour than Abbey.
B
Sara earns $4 more per hour than Abbey.
C
Abbey earns $1 more per hour than Sara.
D
Abbey earns $5 more per hour than Sara.
Answers
Answer:
C
Step-by-step explanation:
The table shows that Sara earns 4 dollars per hour. The equation shows that Abbey earns 5 dollars per hour.
I hope that helps. If there are any questions left, just comment:)
Please mark me brainliest (it gets you 10 points back btw)
which solid does the net form? picture below
A hexagonal prism
B hexagonal pyramid
C rectangular prism
D rectangular pyramid
Answers
Answer:
B
Step-by-step explanation:
hexagonal pyramid
6 SIDES,
A PYRAMID
Lina owns 300 shares of General Motors Company. She receives annual dividends of $0.54 per share. How much will she received in dividend payments? *
Answers
Answer:
The total payment is $162.00
Step-by-step explanation:
Take the number of shares time the amount per share
300 * .54
162
The total payment is $162.00
Help please with questions 1-2
15 points
Answers
Answer:
1) C)[tex]\sqrt{149}[/tex]
2) A) Yes
Step-by-step explanation:
FInd the legth of side AB. Give your answer to 1 decimal place
Answers
Answer:
Hey love, be sure to add a photo! i will edit my answer once you do so :D
Please help with this simple attachment Extremely Easy!
Answers
Answer:
[tex]\frac{1}{16}[/tex]
Step-by-step explanation:
[tex]1/12 \times 3/4[/tex]
[tex]3/48[/tex]
[tex]=1/16[/tex]
1/16 ft^2
please see the attached picture for full solution
hope it helps
Good luck on your assignment
Which of the following was a key cause of World War II?
O A. The establishment of alliances between Japan, Russia, and Great
Britain
O B. The dangerous and aggressive expansion of totalitarian nations
O C. The Soviet Union's efforts to spread communism around the world
D. The assassination of Archduke Franz Ferdinand by Serbian
nationalists
SUBMIT
Answers
Answer:
c. the dangerous and aggressive expansion of totalitarian nation
Step-by-step explanation:
Please use a system of equations to solve this problem. I already know how to solve this, but I want to know how to solve it using a system of equations!!! A writing workshop enrolls novelists and poets in a ratio of 5:3. There are 24 people at the workshop. How many novelists are there and how many poets are there?
Answers
Answer:
[tex]\boxed{\sf \ \ \ 15 \ \ novelists \ \ and \ \ 9 \ \ poets \ \ \ }[/tex]
Step-by-step explanation:
hello,
let's note a the number of novelists and
b the number of poets.
we know that a = 5/3 b as "enrolls novelits and poets in a ratio of 5:3"
it comes 3a=5b which is the first equation
and we know that a + b = 24 "there are 24 people"
we we have two equations
(1) 3a - 5b = 0
(2) a + b = 24
let's multiply (2) by 3 it comes 3a + 3b = 24*3 = 72
let's do 3*(2) - (1) it comes
3a + 3b -3a + 5b = 72 - 0 = 72
so 8b = 72
so b = 9
and then we replace b in (2) it comes
a = 24-9 = 15
hope this helps
Evaluate t - u/v when t = -1, u = -3, and v = 1/2.
P.S. it’s not multiple choice.
Answers
The answer would be 5.
To subtract fractions, find the LCD and then combine.
Hope this helps !
Answer:
5
Step-by-step explanation:
Oscar walked at the same rate for 10.5 miles. He
completed his walk in 3 hours. What was Oscar's
rate, in miles per hour, during his walk?
Answers
Answer:
Oscar walked at the same rate for distance D = 10.5 miles.
He completed his walk in time T = 3 hours.
=>Oscar's rate, in miles per hour, during his walk:
R = D/T = 10.5/3 = 3.5 (mile/hour)
Hope this helps!
:)
If you have how many miles he walked and the time he completed it in; you can just divide the miles by the time to get the rate of how fast he walked those miles. This is because you have an overall mile rate and time you just need to figure out how many miles per hour which is why you divide. Think of it as a ratio 10.5:3 vs 3.5:1. Try to get the right side of the ration down to 1 by dividing both sides by the right side.
Hope this helps, sorry I’m bad at explaining
Which is the graph of the function f(x) = x3 – x2 – 17x - 15?
Answers
Answer with Step-by-step explanation:
We are given that a function
[tex]f(x)=x^3-x^2-17x-15[/tex]
We have to find the graph of the given function.
y-intercept:It is that value of y where the graph cut the y- axis.
Let
[tex]y=f(x)=x^3-x^2-17x-15[/tex]
Substitute x=0
Then, we get
[tex]f(0)=-15[/tex]
y-intercept of the graph=-15
x- intercept: It is that value of x where the graph cut the x- axis.
Substitute y=0
[tex]x^3-x^2-17x-15=0[/tex]
Substitute x=-1
[tex]-1-1+17-15=0[/tex]
Therefore,x=-1 is a solution of given equation.
[tex](x+1)(x^2-2x-15)=0[/tex]
[tex](x+1)(x^2-5x+3x-15)=0[/tex]
[tex](x+1)(x(x-5)+3(x-5))=0[/tex]
[tex](x+1)(x+3)(x-5)=0[/tex]
[tex]\implies x=-1,-3,5[/tex]
Hence, the x-intercept are
-3,-1 and 5
Answer:b on edg 2020
Step-by-step explanation:
Al uses a box in the shape of a rectangular prism as shown in the diagram to for his coin collection.
What is the volume of the box?
192in³
275in³
37512 in³
425in³
Answers
Multiple the base (12.5) by the width (8.5) by the height (4)
Answer:
425 in.^3
Step-by-step explanation:
volume = length * width * height
Change all mixed numerals into decimals.
volume = 12.5 in. * 8.5 in. * 4 in.
Now use a calculator to multiply the three numbers together.
volume = 425 in.^3
What is the value of x in the equation 2.5-0.25x=-3?
-22
-1.1
1.1
22
Answers
The value of X is 22
look at the attached picture
Hope it will help you
Good luck on your assignment
The value of x in the equation is 22.
What is the value of x?In order to determine the value of x in the equation, take the following steps:
Combine similar terms: 2.5 + 3 = 0.25xAdd similar terms: 5.5 = 0.25xDivide both sides of the equation by 0.25: 5.5 / 0.25 = 22To learn more about addition, please check: https://brainly.com/question/349488
