Answer:
1) [tex]-10x^2[/tex]
2) [tex]64x^2[/tex]
Step-by-step explanation:
First question:
-2x . 5x = [tex]-10x^2[/tex]
Second question:
[tex](8x)^2=8x.8x= 64x^2[/tex]
James and Bethany Morrison are celebrating their 10th anniversary by having a reception at a local reception hall. They have budgeted $2500 for their reception. If the reception hall charges a $80 clean up fee plus $35 per person, find the greatest number of people that they may invite and still stay within their budget.
Micah jogged 8/10 of a mile. Sarah jogged 3 times this distance. How far did Sarah jog? Explain
Answer:
2.4 miles or 12/5 miles
Step-by-step explanation:
well if we take the amount Micah jogged (8/10 miles) and we multiply that by 3 in order to get Sarah's distance
it leaves us with
24/10 and that simplified will be
12/5 miles
in decimals that would be
2.4 miles
Find 9079 + 1232 + 9786.
What is 9/10 x 12/6=
Answer:
1.8
hope this is right
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=101 and σ=24. (a) what proportion of children aged 13 to 15 years old have scores on this test above 83 ? (note: please enter your answer in decimal form. for example, 45.23% should be entered as 0.4523.)
Answer:
a) 0.7734
Step-by-step explanation:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
[tex]\mu = 101, \sigma = 24[/tex]
(a) what proportion of children aged 13 to 15 years old have scores on this test above 83 ?
This is 1 subtracted by the pvalue of Z when X = 83. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{83 - 101}{24}[/tex]
[tex]Z = -0.75[/tex]
[tex]Z = -0.75[/tex] has a pvalue of 0.2266
1 - 0.2266 = 0.7734
The answer is 0.7734
One number is five less than three times another number. If the sum of the numbers is 3, find the numbers.
Answer:
1 and 2
Step-by-step explanation:
1 is 5 less than 3 times 2
3*2= 6
6-5= 1
1+2=3
2 1/8x+3/4x+1/6-7/12x+5 2/3
Answer:
5/24(11x+28)
Step-by-step explanation:
The bill at a restaurant is $160. You leave a 20% tip. What is your total restaurant bill, including the tip? 20 points!
Answer:
$192
Step-by-step explanation:
Bill: $160.00
Tip: 20%
To figure out 10%, you need to move the decimal point over to the left one place: $16.00
10%: $16.00
16 times 2= $32.00
160.00+32.00= $192.00
what is the difference between multiplying fractions and adding/subtracting fractions? complete sentances pleaseo
Answer:
See explaination for answer! Hope this helps!
Step-by-step explanation:
When multiplying and deviding, you are raising them or lowering them by a certain degree, but adding or subtractions is just combining two fractions.
Just to quickly explain the "combining" aspect, during subraction, you are combining a positive with a negative.
convert 3.9/4 into decimals
Answer:
.975
Step-by-step explanation:
2(2x+2) ????????????????????????
Answer:
4x+4
Step-by-step explanation:
2(2x+2)
Distribute the first 2 to each term inside the parentheses
2 * 2x + 2 *2
4x+4
Answer:4x+4
Step-by-step explanation:
Multiply the numbers in the parentheses by 2
2 times 2x=2x+2x=4x
2 times 2=4
So....4x+4 is the answer
5 ways to get points
Answer:
um answer questions and answer questions and answer questions and answer questions and answer questions
Step-by-step explanation:
Eight bricks are laid end to end along the edge of a flower bed. Each brick is inches long. How long is the row of bricks, in inches?
Eight bricks are laid end to end along the edge of a flower bed.
Each brick is 11/2 inches long. How long is the row of bricks, in inches?
11/2 inches
A average row of bricks is 7-1/2 inches
11/2 x 7-1/2 = 38
38 inches
Answer:
1.5 times 8 equals 12. The row of bricks is 12 inches long
1. The L.C.M. of x and 12 is 36.
Answer:
36
Step-by-step explanation:
An account earns annual simple interest. Find the balance of the account.
$5,000 at 6% for 9 months.
Answer:
$7700
Step-by-step explanation:
As the account earns 6% interest, if we find 6% of $5000 we get $300, the interest is simple and given every month, meaning you get $2700 in interest as $300 x 9 months = $2700
$5000 initial + $2700 interest = $7700
EDIT:
It could be that the interest is 6% yearly, which means that yearly you get 6% interest, and the answer is $5225.
6% interest is $300 per year
$300÷12= $25 per month
$25 x 9 months = $225
$5000 initial plus $225 interest = $5225 total
PLS HELP Does the following table of values represent an exponential function?
What is the present value of an investment that will be worth $6000 at the end of five years? Assume an APR of 6% compounded monthly. (Round your answers to the nearest cent.)
Answer:
4448.23
Step-by-step explanation:
[tex]AV=PV(1+\frac{i}{n})^{nt}\\\\6000=PV(1+\frac{.06}{12})^{5*12}\\\\6000=PV*1.3488\\\\PV= 4448.23[/tex]
The present value of an investment that will be worth $6000 at the end of five years is, $4448.23
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Annual value = $6,000
Time = 5 years
Rate = 6%
Hence, We get;
A = P (1 + r/n)ⁿˣ
Substitute all the values, we get;
⇒ 6000 = P (1 + 0.6/12)⁶⁰
⇒ 6000 = P × 1.3488
⇒ P = $4448.23
Thus, The present value of an investment that will be worth $6000 at the end of five years is, $4448.23
Learn more about the mathematical expression visit:
brainly.com/question/1859113
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Determine the AMPLITUDE and the MIDLINE of the sine function below.*
1 poin
y = – 3sin(2x) - 5
a. Amplitude = -3, Midline = -5
b. Amplitude = 3, Midline 5
c. Amplitude = 3, Midline - 5
d. Amplitude = 2, Midline = – 3
O a.
Step-by-step explanation:
Amplitude of the sine function is 1.
So if its multiplied by -3, its amplitude is 3 (its always positive).
The midline of sin x is 0.
The midline of sin 2x is also 0.
The midline of -3*sin 2x is also 0.
So if you subtract this function by 5, then the new midline is -5.
The interval(s) for which the function shown below is increasing
Answer:
everywhere except between 2 and 5
(between -inf and 2 and between 5 and inf)
Step-by-step explanation:
pls brainlist
A function assigns the value of each element of one set to the other specific element of another set. The interval for which the given function is increasing is (-2,0).
What is a Function?
A function assigns the value of each element of one set to the other specific element of another set.
A function from a set X to a set Y allocates precisely one element of Y to each element of X. The set X is known as the function's domain, while the set Y is known as the function's codomain.
The given function is increasing only when the slope of the function is positive and when the value of x is increased from -2 to 0. Therefore, it can be concluded that the interval for which the given function is increasing is (-2,0).
Learn more about Function here:
https://brainly.com/question/5245372
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The area of a bathroom floor measures 6 feet by 9 feet and each custom tile that makes up the flooring is 1 1/2 square feet. How many tiles are needed to cover the floor?
pls help me
Answer:
Around 9.8 tiles
Step-by-step explanation:
The formula is x = (6*9)/5.5.
In a population of 2000 students, 230 are left-handed. A random sample of size
50 is selected and the number of left-handed students is recorded. If we
collected many more samples, which of the following could describe the
sampling distribution?
P + 1/4 (is greater than or equal to) 2
Answer:
P + 1/4 (is greater than or equal to) 2
p<or =2-1/4=7/4
ASAP BE||CD. Find the value of x and AC.
I don’t understand
#6 pls I’ll give brainliest to whoever replies first
Answer:
y=3x
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
0 goes from 0 to three 3 so the constant rare is the and the linear equation would be y = 3x
A football player completes a pass 67.9% of the time.Find the probability that the first pass he completes is the second pass.
Answer:
0.2587 = 25.87% probability that the first pass he completes is the second pass.
Step-by-step explanation:
Probability that the first pass he completes is the second pass.
Misses the first, with a 100 - 67.9 = 38.1% = 0.381 probability.
Completes the second, with 0.679 probability. So
0.381*0.679 = 0.2587
0.2587 = 25.87% probability that the first pass he completes is the second pass.
What is the solution of the system of equations shown on the graph?
176
12
O (5, -1)
o (-4,-3)
O (3,-4)
o (-4,3)
Answer: 3, -4
Step-by-step explanation: gust look harder
I need help plz due in 20 min
Answer:
No, because 2(3x-5)=6x-10, and 6x-10 is not equal to 6x-8
Step-by-step explanation:
help me with this please it's important pleaseeeeeeeeeeeeeeeeee frindes
Answer:
27-64
Step-by-step explanation:
cheating in tests are bad, searching for answers in tests is also bad
but the range is 27-64
If you averaged 400 miles per day, about how many days would a trip of 1990 miles take?
Answer:
4 days
Step-by-step explanation:
you would divide 1990 by 400 to get the answer.
Selena earned $4,283.30 last month. She used of her earnings to pay her bills. With the remaining money, she
bought two shirts for $19.99 each and a pair of sunglasses for $12.99. How much money does Selena have left from last
month's earnings?
Answer:
$4,256.31
Step-by-step explanation:
4,283.30 - 2(19.99) + 12.99 = x
Initial value (last month's earnings) - the two shirts, which were both 19.99 and the pair of sunglasses, which were 12.99.
4256.31 = x