Answer:
-26
Step-by-step explanation:
-4(-2)^2 + 2(-2) - 6
-4(4) + -4 - 6
-16 -10
-26
The value of equation [tex]-4x^{2}+2x-6[/tex] is -26 when x = -2
What is equation?"An equation is a statement of equality between two expressions consisting of variables and/or numbers."
Substitute the value x = -2 in the given equation
[tex]=-4(-2)^{2}+2(-2)-6 \\=-4(4)-4-6\\=-16-4-6\\=-16-10\\=-26[/tex]
Hence, the value of the given equation is -26
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simplify a-(a+b)
(it's not b or a-b)
Answer:
-b
Step-by-step explanation:
a-(a+b)
a-a-b
-b
9+7x=4x-9 Solve for X.. Help?
Answer:
-6 srr if you get it wrong
Step-by-step explanation:
9 + 7x = 4x - 9
7x - 4x = - 9 + (- 9)
3x = -18
x = -6
Jesse looks at the prices of 5 guitars. The prices are $85,
$90, $88, $82, and $86. This data set does not contain an
extreme value.
Which measure of center should Jesse use to describe the prices?
A. Either the mean or the median. The values are about the same.
B. Mean absolute deviation (MAD)
C. Interquartile range (IQR)
D. Range
The answer is A. I did this test and it said it was A.
What is an equivalent ratio to 5:10?
Answer:
1:2
Step-by-step explanation:
Its just like fractions
You can simplify it.
In an endurance race, Alyson rode her bicycle 7 miles less than Jeff. Together they rode 39 miles. How far did Alyson ride?
Answer:
Distance cover by Alyson = 16 miles
Step-by-step explanation:
Given:
Distance cover together = 39 miles
Assume;
Distance cover by Jeff = a
Distance cover by Alyson = a - 7
Find:
Distance cover by Alyson
Computation:
a + (a - 7) = 39
2a - 7 = 39
2a = 46
a = 23
Distance cover by Alyson = a - 7
Distance cover by Alyson = 23 - 7
Distance cover by Alyson = 16 miles
What is 5 1/2 - 3 1/4=? Ty if you answer.
Answer:
2.25
Step-by-step explanation:
your welcome. oh and make it a improper fraction then subtract:)
Answer:
2 1/4
Step-by-step explanation:
or 3.25 in decimal form
Will mark BRAINLIEST! Show work
Answer:
15%
Step-by-step explanation:
1. Subtract final value from starting value
65 - 55.25 = 9.75
2. Divide 9.75 by original number
9.75/65 = 0.15
3. Multiply quotient by 100 to get percentage
0.15 x 100 = 15%
Rob is flying a kite with a string that makes a 70-degree angle with the ground. If the kite string is 27 meters long, how high is the kite above the ground?
(Please use the exact ratio to calculate the missing side and round your answer to the nearest hundredth.)
The kite is meters above the ground.
Answer:
25.37
Step-by-step explanation:
Use SOH or Sin∅=[tex]\frac{opposite}{hypotenuse}[/tex]
So Sin(70)= [tex]\frac{x}{27}[/tex]
Multiply both sides of the equation to end up with 27Sin(70)=x
Plug into your calculator in degrees and you get 25.37m
At a school bake sale, all of the pies were cut into 6 pieces, so each person who bought a piece got ⅙ of a pie. Each slice sold for $2. The were sold out. How much money did the kids make if there were 11 pies sold? B. How many slices were sold?
Answer:
They made 132$, and 66 slices were sold.
Step-by-step explanation:
If all of the pies were cut into six pieces, and each piece costed $2, then you can multiply 6 x 2 to determine how much each pie cost. ($12)
If each pie costed $12 and there were 11 pies sold in total, then you can multiply 12 x 11 to find out how much money they made.
And to find out how many slices they sold you just have to multiply the 11 total pies by 6 because each pie had six pieces.
For a school fundraiser, Jessica will make T-shirts. She will order T-shirts and print graphics on them. Jessica must spend $255 on a printing machine and
$6.80 per shirt for the blank shirts, Ink, and other supplies.
Part
What is the maximum number of T-shirts Jessica can make with a budget of $1,000?
Explain your answer or show your work:
solve the inequality -d ≥ 0.5
Answer:
d ≤ -0.5
Step-by-step explanation:
Multiply each term by -1
PLEASE HELP
is 18 35 and 53 going to make a right triangle
Answer:
No.
Step-by-step explanation:
53 + 35 = 88, add 18 = 106.
Answer:
no
Step-by-step explanation:
18x18 + 35 x35 = 53x53
324 + 1225 = 2809
1549 =\ 2809
Mrs.cooper painted 1/3 of her wall in 3/4 hour if she works at the same rate what portion of the wall will she paint in one hour
Answer:
Step-by-step explanation:
PLS HELP! I WILL GIVE BRAINLIEST TO BEST ANSWER! Just number 2. Pls exlpain your work. Doesn't have to be like an essay, just enough so I know that you know it's the right answer. TYSM!
PS: You may have to rotate the picture to read it.
Answer:
D
Step-by-step explanation:
If you solve you will find out that its D
18) PB = 8. Find PA.
Please I need help on these, dosent need to be right.
Answer:
Plug in the numbers in the table to find the pattern.
Step-by-step explanation:
why is no one helping me...i want a good grade but I need someone who is good with slope and is smarter than a 8th grader BUT NO no one wants to help me
Answer: what is the question
Step-by-step explanation:
Find the solution of the system of equations. -10x+8y= -44 4x+8y=40
Answer:
(6, 2)
Step-by-step explanation:
i hope this helps :)
Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school. If Angela works alone, it will take her five and a half hours. If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?
Answer:
3.08 hours
Step-by-step explanation:
Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.
If Angela works alone, it will take her five and a half hours.
If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?
This is calculated as:
The Number of hours they worked together = T
1/5.5 + 1/7 = 1/T
= 7 + 5.5/(5.5)(7)
= 12.5/38.5
1/T = 12.5/38.5
Cross Multiply
12.5T = 38.5
T = 38.5/12.5
T = 3.08 hours
The time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.
What is the relation between work and time?The total time taken is inversely proportional to the rate of work. If a unit of work is done in total n number of days, then the total work done in a day can is,
[tex]W_1=\dfrac{1}{n}[/tex]
In preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.
If Angela works alone, it will take her five and a half hours. The work done by Angela in one hour is,
[tex]A=\dfrac{1}{5.5}\\A=\dfrac{2}{11}[/tex]
If Brandon works alone, it will take him 7 hours. The work done by Brandon in one hour is,
[tex]B=\dfrac{1}{7}[/tex]
The work done in one hour, when the work together,
[tex]A+B=\dfrac{2}{11}+\dfrac{1}{7}\\A+B=\dfrac{14+11}{77}\\A+B=\dfrac{25}{77}\\A+B=\dfrac{1}{3.08}[/tex]
Thus, the time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.
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how many terms are in the given expression 7x+5w+23t+3
Answer:
4
Step-by-step explanation:
7x 5w 23t 3
find four numbers that are between 0.22 and 0.23, and put all numbers in order from least to greatest
60 degrees 30 degrees 72 degrees 46 83 97 215 457
9.
Evaluate f(x) = [tex]-x{2}[/tex] for x = –3.
A. –9
B. –8
C. 4
D. –4
1. Consumers who bought Silly Soup were naked to respond to an internet wurvey comparing,
the product to other cleaners. If 600 of the 800 people said they preferred Silly Swap, What
claim can the company make?
A3 out of 4 women prefer Silly Soap.
B. More people use Silly Soap than any other brand.
C. Any claim would not be accurate since it is likely that moa respondents were women,
D. Any claim would not be accurate since the survey was given to Silly Soap consumers.
The required claim can the company make is that 3 out of 4 women prefer Silly Soap. Option A is correct.
Given that,
Consumers who bought Silly Soup were placed to respond to an internet survey comparing,
The product to other cleaners. If 600 of the 800 people said they preferred Silly Swap.
To determine what claim can the company make.
The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
Here,
From given,
600 of the 800 people said they preferred Silly Swap.
implies,
Ratio = 600 / 800 = 3 / 4
Thus, the required claim can the company make is that 3 out of 4 women prefer Silly Soap. Option A is correct.
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what is the LCM of 5 and 7
Answer:
35
Step-by-step explanation:
Answer:
the answer is 35.
Step-by-step explanation:
Simplify: (4 – 5) – (13 – 18 + 2).
please & thank you!
Answer:
glad it helps
Step-by-step explanation:
(4-5)- (13-18+2)
(-1)-13+18-2
= 2
how do u solve rational exponent equations
Given Point A (3,-4) and Point B (8,6) on directed line segment AB, what is the y-coordinate of Point F
that partitions AB in the ratio of 3:2?
Answer:
(6,2) y-coordinate is 2
Step-by-step explanation:
The coordinates of the point F on directed line segment AB that partitions AB in the ratio 3 :2 are: (6, 2)
What is Coordinate geometry?The formula for finding the coordinates of a point that divides the line in ratio m:n are given by:
We are given that Point A (3,-4) and Point B (8,6) on directed line segment AB.
Here (x1,y1) and (x2,y2) are coordinates of the two points line passed through
(x1,y1) = A(-3,-4)
(x2,y2) = B(8,6)
Ratio: 3 : 2
m = 3
n = 2
Putting the values in the formula
( x, y) = (3 x 8 + 2 x 3 /5 , 3 x 6 + 2 x (-4) /5 )
( x, y) = (24 + 6 / 5 , 18 - 8 /5)
( x, y) = (30/5, 10/5)
( x, y) = (6, 2)
Hence,
The coordinates of the point F are: (6, 2)
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please help, giving brainliest, thanks!
Answer:
Please look at the image.
I solved this by the information of 6 pages in 12 minutes which means 0.5 or half a page per minute.
Now you know you read half a page in a minute
5 pages in 10 minutes because:
10 × 0.5 = 5
8.5 pages in 17 minutes because:
17 × 0.5 = 8.5
Leon has $50 in a savings account that earns 10% interest, compounded annually. To the nearest cent, how much interest will he earn in 2 years?
Answer:
$10.50
Step-by-step explanation:
Interest = future value - amount saved
The formula for calculating future value:
FV = P (1 + r)^n
FV = Future value
P = Present value
R = interest rate
N = number of years
$50 x (1.1)^2 = $60.50
Interest = $60.50 - $50 = $10.50