Answer:
63 students
Step-by-step explanation:
84*75%=63
The graph models the height h, in meters, of a hot air balloon, t minutes after beginning to descend. How high was the balloon when it began its descent?
Answer:65
Step-by-step explanation: idek i just had this question & that’s the right answer <33
Can some one please help with this question
Answer:
5x + 9
Step-by-step explanation:
f(x) = 3x+4
g(x) = 2x + 5
(f+g)(x)
(3x+4) + (2x + 5)
= 5x + 9
// however I'm unsure
Determine if triangle XYZ with coordinates x (1, 1), y (5,6) and z (6,2) is a right triangle
Answer:
No(im not totally sure though because its slanted.)
Step-by-step explanation:
desmos.
which expression is the sun of cubes?
Answer:
Step-by-step explanation: We have been given 4 expressions. We are asked to choose the expression that represents sum of cubes.
We know that sum of cubes is in form .
We can see that 1st and 2nd option has a negative sign. Therefore, these options cannot be sum of cubes.
Let us check 3rd and 4th options one by one.
We can rewrite our expression by writing terms as cubes:
Therefore, expression is a sum of cubes.
In 4th expression, we can see that . We cannot represent it as a cube. Similarly, we cannot represent as a cube. Therefore, 4th expression is not correct.
WILL GOVE BRAINIEST Kim and Tegan train for the iron man on the weekend. They bike at a constant rate of miles per hour. The tables below show Kim and Tegan’s total (distance) for biking a given amount of time. Find the missing value in the chart. (highlighted yellow)
Answer:
C 210
Step-by-step explanation:
To solve this, First we must take 42/3, Since it equals 14, we take 15x14 and find 210
(edit: to solve for Kim's missing values, you do the same with 2 and 32)
Elias’s teacher has given him a rectangle that is 15 feet by 20 feet. She has asked him to create a new rectangle using a scale factor of 8/3. Elias says that will be a reduction because the scale factor is a fraction. Is he correct? Explain.
Answer:
17.68 feat long
Step-by-step explanation:
Answer:
17.68 feet
Step-by-step explanation:
If the mFT 3x - 2 and the mFE = 5x + 1, Find x and mTE. (GT is median)
Please get back to me soon, I'll give Brainliest!
Answer:
x = 5
TE = 13
Step-by-step explanation:
Since GT is the median, then 2*(FT) = FE.
FE = 5x + 1
FT = 3x - 2
Therefore:
2*(3x - 2) = 5x + 1 (substitution)
6x - 4 = 5x + 1
Collect like terms
6x - 5x = 4 + 1
x = 5
TE = ½*(FE)
TE = ½*(5x + 1)
Plug in the value of x
TE = ½*(5(5) + 1)
TE = ½(25 + 1) = ½(26)
TE = 13
A bacteria triples its original population in 25 hours (A=3A0). How big will its population be in 100 hours?
Answer:
81 times the original size.
Step-by-step explanation:
AA0ktA=3A0=?=?=25hours=A0ekt
Substitute the values in the formula.
3A0=A0ek⋅25
Solve for k. Divide each side by A0.
3A0A0=e25k
Take the natural log of each side.
ln3=lne25k
Use the power property.
ln3=25klne
Simplify.
ln3=25k
Divide each side by 25.
ln325=k
Approximate the answer.
k≈0.044
We use this rate of growth to predict the number of bacteria there will be in 100 hours.
AA0ktA=3A0=?=ln325=100hours=A0ekt
Substitute in the values.
A=A0eln325⋅100
Evaluate.
A=81A0
At this rate of growth, we can expect the population to be 81 times as large as the original population.
Answer:
81
Step-by-step explanation:
Which of these are factors of this polynomial -3x^3+15x^2+3x-15 (x+5) 3x (3x-1) (x+1) (x- 5) (x-1) -3
Answer:
Step-by-step explanation:
x - 5
x + 1
x - 1
-3
My calculator does this. Factoring might also work.
-3x^2x ( x - 5) + 3(x - 5)
(-3x^2 + 3) ( x - 5)
-3(x^2 - 1) (x -5)
-3(x - 1)(x+1)(x - 5)
ryan has $0.75 worth of pennies and nickels. He has 3 more nickels than pinniped. Determine the number of pennies and the number of nickels that ryan has
Answer:
Ryan has 10 pennies and 13 nickels.
Step-by-step explanation:
Let the number of pennies be p and the number of nickels be n.
We have two unknowns, the number of pennies and the number of nickels, so we need two equations. One equation will deal with the value of the coins. The other equation will deal with the number of coins.
Value of coins:
1 penny is worth $0.01; p pennies are worth 0.01p.
1 nickel is worth $0.05; n nickels are worth 0.05n.
The total amount the coins are worth is
0.01p + 0.05n
The coins are worth $0.75, so we have our first equation.
0.01p + 0.05n = 0.75 Equation 1
Number of coins:
He has p pennies.
The number of nickels is 3 more than the number of pennies.
Since the number of pennies is p, then the number of nickels is p + 3.
That gives us our second equation.
n = p + 3 Equation 2
System of equations:
Now we have a system of two equations in two unknowns:
0.01p + 0.05n = 0.75
n = p + 3
Since the second equation is already solved for n, we can use the substitution method.
Replace n in the first equation with p + 3.
0.01p + 0.05n = 0.75
0.01p + 0.05(p + 3) = 0.75
Distribute the 0.05
0.01p + 0.05p + 0.15 = 0.75
Combine like terms on the left side.
0.06p + 0.15 = 0.75
Subtract 0.15 from both sides.
0.06p = 0.6
Divide both sides by 0.06.
p = 0.6/0.06
p = 10
Now we substitute 10 for p in the second equation to find the value of n.
n = p + 3
n = 10 + 3
n = 13
He has 10 pennies and 13 nickels.
Check:
A) 13 - 10 = 3 He does have 3 more nickels than pennies.
B) $0.01(10) + $0.05(13) = $0.10 + $0.65 = $0.75
The number of coins and the value of the coins both check out, so our answer is correct.
Answer: Ryan has 10 pennies and 13 nickels.
PLZ HELP MEEEE!!!
Hannah is trying to figure out how tooth size is determined in two different wolves. In wolf 1, the copies of the gene are different from each other. In wolf 2, the copies of the gene are the same as each other. How does this affect how many types of proteins there are in each tooth cell?
a
Wolf 1 has one type of protein for the tooth size feature. Wolf 2 has one type of protein for the tooth size feature.
b
Wolf 1 has two types of protein for the tooth size feature. Wolf 2 has one type of protein for the tooth size feature.
c
Wolf 1 has two types of protein for the tooth size feature. Wolf 2 has two types of protein for the tooth size feature.
d
It is impossible to say anything about proteins from the given information.
Answer:
It is impossible to say anything about proteins from the given information.
Step-by-step explanation:
Give 5 numbers that are divisible by 4. Show the process
Answer:
8, 12, 16, 20
Step-by-step explanation:
8/4 = 2
12/4= 3
16/4= 4
20/4= 5
I need help on number 6 cuz I’m saying it’s F while my friend is saying that it’s H ♀️
Answer: You are correct, the answer if F. If I got it correct, can you please tell me?
To make cranberry jam you need 12 cups of sugar for every 16 cups of cranberries. Find the amount of sugar needed for 4 cups of cranberries.
Answer:
It would be three cups
Step-by-step explanation:
16/12=4/x
Divide 16 by 4 to get 4 cups of cranberries, and do the same to the sugar
3=x
Which of the following phrases could represent the expression k - 4?
four less a number
a number less than four
a number decreased by four
a number subtracted from four
Answer:
a number decreased by four
Step-by-step explanation:
20 POINTS
All side lengths in quadrilateral PQRS measure 6 units. A transformation maps
PQRS to P'Q'R'S'. All sides of P'Q'R'S' measure 3 units. Is the mapping isometric?
Explain.
An isometric transformation is a transformation that preserves the distance and angles between a pre-image and its image. Examples are: translation, reflection, rotation.
Answer:
No, the side lengths are not preserved.
This is a non isometric transformation.
Tip of 20% on a $5 meal
Answer:
$1
Step-by-step explanation:
20% of $5 = 0.20*5 = $1.00
5.2 cm ×2+
7.7 cm ×2=
Answer:
25.8
Step-by-step explanation:
5.2 cm ×2+7.7 cm ×2
=10.4+15.4
=25.8
Dale made a model of a using a scale of 4 inches=50 feet. If the lighthouse is 120 feet tall, how tall is the model?
What is the area of the pyramid square base
Answer:
25 cm^2
Step-by-step explanation:
the area of 1 triangle is 20, so the missing length of the triangle is 5. 5x5=25
80-64=
what you get divide by 8
If there are 8 pair of green shoes sold for every 12 pair of black sneakers sold you have sold 60 pair of black sneakers how many green sneakers were sold
Can someone help please i'll get grounded for a month.
Answer:
5·8÷2+9=29
23+14÷7-20=5
[tex]9^{2}[/tex]-4·8+26=75
There you go. Hope you didn't get grounded before I answered.
President Andrew Jackson replaced a number of government workers with his opponents. neighbors. family members. supporters.
Answer:
supporters.
Is the correct answer.
Answer:
D
Step-by-step explanation:
Good luck, this is the correct answer
The height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 241 cubic units.
What is the height of the cylinder?
2 units
4 units
6 units
8 units
Answer: 6 units
Step-by-step explanation:
Find the missing length for the pair of similar figures
Answer:
Bb
Step-by-step explanation:
Answer:
B. 4.5 mStep-by-step explanation:
Corresponding sides have same ratio:
4/9 = 2/aa = 2*9/4a = 4.5 mCorrect option is B
I need help its hard plz I'm trying to do a test and I need help plz I will give u 5 stars and a heart plz I have asked 6 times starting at sea level, a submarine descended at a constant rate to a depth of −3/4 mile relative to sea level in 5 minutes.
What was the submarine's depth relative to sea level after the first minute?
Enter your answer in the box as a fraction in simplest form.
Answer:
-6.8 becauseyou would divide -34 by 5.
A designer determined the annual profit in dollars from selling t-shirts using p(n) = 10n - 50, where n is the number of t-shirts sold. What is the
annual profit if the designer sells 100 t-shirts?
O $950
O $1,000
$10,000
O $8,050
Solve the following
a) 2x + 3) = x-4
Answer:
x=-7
Step-by-step explanation:
2x+3=x-4
2x-x=-4-3
x=-7
If Toni is trying to calculate her net worth, which of the following items would go on the liabilities list? *
A. Original sale price of her car
B.Her Mortgage
C.Savings account balance
D. Value of her 401(k) plan
Answer:
B.Her Mortgage
Step-by-step explanation:
The net worth is the value that left after deducting the liabilities from the assets
Here as per the given options, the original sale price of the car, saving account balance and the value of her 401(k) plan is an asset
While the liabilities is the mortgage that took by her as she has to repay the amount taken by the financial insititution. It is her responsibility to pay back all the dues to the bank
Therefore the option B is correct
Question 12
What is 62% of $10.50
Answer:
6.51 US$
Step-by-step explanation:
62% of 10.50 is 6.51
