i think it would be -8x - 10.
a chimp is taking a multiple-choice test. of course the chimp can't read and is guessing for every question. if there are 4 choices for each question, and there are 84 questions on the test, how many questions can we expect the chimp to answer correctly? (hint: there is a 25% chance that the chimp will guess correctly)
Answer:
21 because there is a 1/4 chance and there are 84 questions, so 1/4 (25%) of 84 is 21.
Step-by-step explanation:
what is half of 1/4?
Answer:
It is 1/8
Step-by-step explanation:
If you split 1/4 into another half you will get 1/8
This is true because if you add 1/8 and 1/8 you get 2/8 which simplified is 1/4
Find the volume of the cone. Round your answer to the nearest tenth. Use 3.14 for n.
11 cm
16 cm
The volume is about
1 cm²
Step-by-step explanation:
use formula
volume of cone =1/3 πr²h
expressions that are equivalent to b×b
Answer:
b^2
Step-by-step explanation:
2) Dan pays $42.95 per month for his cell phone. At
this rate, what will his cell phone cost for a year?
Please help !
Answer:
$515.40
Step-by-step explanation:
Dan pays $42.95 per month for his cell phone. There are 12 months.
m=months
($42.95m) (12) = $515.40
Can someone PLEASE help me with this question?
9514 1404 393
Answer:
11
Step-by-step explanation:
The future value of the account is given by the formula ...
A = P(1 +r/12)^(12t) . . . . principal P invested at rate r for t years
Solving for t, we find ...
A/P = (1 +r/12)^(12t) . . . . . . . . . . . divide by P
log(A/P) = 12t·log(1 +r/12) . . . . . . take logs
Divide by the coefficient of t, then fill in the numbers.
t = log(A/P)/(12·log(1 +r/12)) = log(202800/93000)/(12·log(1 +.068/12))
t ≈ 11.497
It will take about 11 years for the account balance to reach the desired amount.
Solve: 4n - 6 = 12
O n = 4
O n = -4
O n = 4.5
O n=-4.5
Answer:
4.5
Step-by-step explanation:
4n - 6 = 12
add +6 to both sides
4n = 18
divide by 4
4/4n = 18/4
n = 4.5
Mary has 3636 flower pots. She plants daisies in \frac{2}{3} 3 2 of her flower pots. In how many flower pots does Mary plant daisies? Use paper to show your work. Enter your answer in the box.
Answer: 24
Step-by-step explanation:
Number of flower pots = 36
Since she plants daisies in 2/3 of her flower pots, the number of flower pots that Mary plant daisies will be:
= 2/3 × 36
= 2 × 12
= 24
She plants daises in 24 flower pots
Find x y and ABHG for brainliest
Answer:
because AB//EF//CD, using thales theorem in ABEF, we have:
[tex]\frac{12}{21}=\frac{15}{y}\\\\<=>y=\frac{15.21}{12}=26.25[/tex]
we also have: CD//EF//GH => using thales theorem in CDGH:
[tex]\frac{21}{x}=\frac{y}{10}\\\\<=>x=\frac{210}{y}=\frac{210}{26.25}=8[/tex]
with y = 26.25 => AB = 26.25 - 14 = 12.25
x = 8 => GH = 5.8 - 3 = 40 - 3 = 37
+) the perimeter of ABHG = AB + AC + CE + GE + GH + HF + DF + BD
= 12.25 + 12 + 21 + 8 + 37 + 10 + 26.25 + 15
= 141.5
Step-by-step explanation:
Pls, answer for 20 points asap. I really need this
Its B then A
Step-by-step explanation:
Answer:
You helped me so it's B and A mark me brainliest please
Step-by-step explanation:
There are 18 girls on the swim team and 12 boys on the swim team what percent of the team is made up of boys
Answer:
40%
Step-by-step explanation:
So add 18 and 12 makes 30. Then divide 30 with a common factor say 6. so there is 5 6s in 30 so each 6 is equivalent to 20 percent there are 2 6s in 12 so it is 40 percent
What is the pattern for solving Benchmark Percentages of 100% ?
Answer: divide by 100 then times result by x
Step-by-step explanation: hope it helps
thx for points gl :)
Danny has 11 1/4 cups of chocolate syrup. He is going to make chocolate sundaes for his friends. Each sundae will have 3/4 cup of chocolate. How many sundaes can Danny make?
Answer: Danny can make 15 sundaes from 11 1/4 cups of chocolate
Step-by-step explanation:
number of cups of chocolate syrup= 11 1/4 cups
For ever sundae, he decides to make, it will require 3/4 cup of chocolate
Number of sundae , Danny can make = number of cups of chocolate syrup /3/4 cup of sundae
= 11 1/4 / 3/4
45/4 x 4/3= 15 sundaes
Therefore, Danny can make 15 sundaes from 11 1/4 cups of chocolate
A variable needs to be eliminated to solve the system of equations
below. Choose the correct first step.
–9x – 10y = -42
-9x + 7y = 60
Answer:
The first step would be to subtract the two equations.
Multiply. 5 x 1 1/3
Answer with a mixed number in simplest form.
Answer:
6 2/3
Step-by-step explanation:
5/1 * 4/3 = 20/3
20/3 = 6 with a remained of 2
I needdddddd hellpppp it’s due TODAYyYYyY
can somebody please help i’ve posted this 1 time and people just used it for points
326 is 28% of what number
Answer:
1164.29
Step-by-step explanation:
divide 326 by 28 then times by 100 to get 100% of the number
The temperature on Monday in Alaska is -24ºF. On Tuesday, the temperature rises 24ºF.
What is the temperature on Tuesday, in degrees Fahrenheit?
Answer:
0 degrees
Step-by-step explanation:
-24 + 24 = 0
Answer:
Wouldn't the answer be 0 degrees Farenheit?
Step-by-step explanation:
-24 + (+24)=0
Spencer has a bank account with a balance. Of. $75.Spencer owes$30 to her credit card and she owes $50 for a LCD tv.What would spencers bank balance be,if both debits were paid.
Answer: $-5
Step-by-step explanation:
From the question, we are informed that Spencer has a bank account with a balance of $75.
We are further told that Spencer owes $30 to her credit card and she owes $50 for a LCD tv.
The amount on Sencers bank balance if both debits were paid would be:
= $75 - ($30 + $50)
= $75 - $80
= $-5
the width if a rectangular room is 1 less than twice the length if the perimeter is 196 feet how long is the length
Answer:
l = 33 feet
Step-by-step explanation:
Let length be l.
Width, b = 2l-1
Perimeter of the room, P = 196
We know that the perimeter of the rectangle is given by :
P = 2(l+b)
196=2(l+2l-1)
98=3l-1
Adding 1 both sides.
98+1=3l-1+1
3l=99
l = 33 feet
So, the length of the room is 33 feet.
Can someone please help me with this??
9514 1404 393
Answer
a) correct
b) (30, 100) would mean an area of 100 square feet is enclosed when the width is 30 feet. (Kristina's vertex coordinates are incorrect.)
Step-by-step explanation:
a) The derivation and expression for A(w) are correct
__
b) Kristina made a mistake in using her graphing calculator to find the vertex. The actual vertex is (27.5, 756.25). The coordinates of the vertex are (w, A(w)). The vertex (w, A(w)) means that the area of the enclosed space is A(w) when the width of the enclosure is w.
If Kristina's vertex coordinates were correct (which they are not), they would tell you the enclosed area is 100 square feet when the width of the enclosure is 30 feet.
A.The original price of a sofa is $500. Answer the following questions. If the sofa price decreased by 20%, what is the new price?
B. The company can’t sell the sofa after 3 weeks so they reduce the price to $320. What is the percent decrease?
Answer:
A. 25
B. 0.64
Step-by-step explanation:
Sorry there is no Step-by-Step explanation to this equation as I have generated an answer from my system.
--
Use: Division.
Use: PEMDAS
--
#LearningFromHome
Answer:
-36% decrease
Step-by-step explanation:
320-500=-180
-180/500=.36*100=-36%
A person places $3610 in an investment account earning an annual rate of 6.6%, compounded continuously. Using the formula V = Pe^{rt}V=Pe rt , where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 18 years.
Answer:
11842.6541≈11842.65
Step-by-step explanation:
The amount of money to the nearest cent in the account after 18 years is
$11842.75.
What is Continuous compounding?Continuous compounding is the mathematical limit that compound interest can reach if it's calculated and reinvested into an account's balance over a theoretically infinite number of periods. While this is not possible in practice, the concept of continuously compounded interest is important in finance. It is an extreme case of compounding, as most interest is compounded on a monthly, quarterly, or semiannual basis.
A = P × [tex]e^{rt}[/tex]
where,
A = Amount of money after a certain amount of time
P = Principle or the amount of money you start with
e = Napier’s number, which is approximately 2.7183
r = Interest rate and is always represented as a decimal
t = Amount of time in years
Given here,
Principal amount (P) = $3610,
Interest rate (r) = 6.6% = 6.6/100 = 0.066
Amount of time (t) = 18 years
Therefore, Amount after 18 years will be A = P × [tex]e^{rt}[/tex]
A = $3610 × [tex]2.7183^{0.066 *18}[/tex]
A = $3610 × 3.2805
A = 11.842.7482
A = $11842.75
Hence, The amount of money to the nearest cent in the account after 18 years is $11842.75
Learn more about continuous compounding here:
brainly.com/question/30033245
#SPJ5
Please help, if you get right, you will get a brainlst.
Answer:
from left to right
-8
-9
-10
-11
1. expand 4³
2.find the square of 49
3.list factors of 16
4.draw an array for the square number 16
5.calculate 6²
6.calculate 1⁴+2²=
7.calculate 2²+3²
here are my questions please help
Answer:
1. 64
2. 7
3. 1, 2, 4, 8, 16
4.
5. 36
6. 5
7. 13
7(2x+5) = 11x-9-x
How would you verify or check your answer when x=-11 pls HELP]
9514 1404 393
Answer:
put the value into the equation and do the arithmetic
Step-by-step explanation:
As with any checking, you put the value where the variable is and do the arithmetic.
7(2x +5) = 11x -9 -x
For x = -11
7(2(-11) +5) = 11(-11) -9 -(-11)
7(-22 +5) = -121 -9 +11
7(-17) = -119
-119 = -119
The value x = -11 makes the equation true.
Please help this is hard.
The value of a boat is $36,450. It loses 10% of its value every year. Find the approximate monthly percent decrease in value. Round your answer to the nearest hundredth of a percent.
Answer:
0.8%
Step-by-step explanation:
Answer:
3,645 per year
Step-by-step explanation:
10% of 36,450 = 3645
It loses 3,645 every year
If $8,000 is invested at 5 % annual interest compounded
semiannually, how much will the investment be worth in 6 years? Give
your answer to the nearest dollar.