Answer:
16 to the power of 1/2 is 8
Evaluate -9+5^2(2-1)
Answer:
16
Step-by-step explanation:
5^5=25
-9+25(2-1)
-9+25*1
-9+25=16
have a great day
Answer: Your answer would be 16.
g(x)=10-3x find x if g(x)=0
Answer:
The notation g(10) means g(x=10). So just set the x-value in g(x) equal to 10:
g(x) = -3x + 1
g(10) = -3*10 + 1
Can you finish it from here?
Step-by-step explanation:
help on math plz help
Answer:
1/6
Step-by-step explanation:
Select the correct answer. If A= and Ab= what is the value of matrix b
Answer: C. [tex]B=\left[\begin{array}{ccc}1\\3\\-5\end{array}\right][/tex]
Step-by-step explanation: I got this right on Edmentum.
Several operations such as addition, subtraction, multiplication, etc. can be performed on matrices. The value of matrix B is:
[tex]B =\left[\begin{array}{c}1&3&-5\end{array}\right][/tex]
Given that:
[tex]A =\left[\begin{array}{ccc}2&4&-2\\4&-5&7\\2&7&5\end{array}\right][/tex]
[tex]AB =\left[\begin{array}{c}24&-46&-2\end{array}\right][/tex]
Let matrix B be:
[tex]B =\left[\begin{array}{c}a&b&c\end{array}\right][/tex]
The product of A and B is as follows:
[tex]\left[\begin{array}{ccc}2&4&-2\\4&-5&7\\2&7&5\end{array}\right] \times\left[\begin{array}{c}a&b&c\end{array}\right][/tex]
Multiply the rows of A to the column of B. So, we have:
[tex]AB =\left[\begin{array}{ccc}2a+4b-2c\\4a-5b+7c\\2a+7b+5c\end{array}\right][/tex]
This means that:
[tex]\left[\begin{array}{ccc}2a+4b-2c\\4a-5b+7c\\2a+7b+5c\end{array}\right] = \left[\begin{array}{c}24&-46&-2\end{array}\right][/tex]
By comparison, we have:
[tex]2a + 4b - 2c = 24[/tex] --- (1)
[tex]4a - 5b + 7c = -46[/tex] --- (2)
[tex]2a + 7b + 5c = -2[/tex] --- (3)
Multiply (1) and (3) by 2
[tex]2a + 4b - 2c = 24[/tex] --- (1)
[tex]4a + 8b - 4c = 48[/tex] ----- (5)
[tex]2a + 7b + 5c = -2[/tex] --- (3)
[tex]4a + 14b + 10c = -4[/tex] ---- (6)
So, we have:
[tex]4a - 5b + 7c = -46[/tex] --- (2)
[tex]4a + 8b - 4c = 48[/tex] ----- (5)
[tex]4a + 14b + 10c = -4[/tex] ---- (6)
Make 4a the subject in each of the equations
[tex]4a = -46 + 5b - 7c[/tex]
[tex]4a = 48 - 8b + 4c[/tex]
[tex]4a = -4 - 14b - 10c[/tex]
[tex]4a = 4a[/tex]. So, we have:
[tex]-46 + 5b - 7c = 48 - 8b + 4c[/tex] and [tex]-46 + 5b - 7c = -4 - 14b - 10c[/tex]
Simplify both expressions
[tex]-46 + 5b - 7c = 48 - 8b + 4c[/tex]
[tex]5b + 8b - 7c - 4c = 48 + 46[/tex]
[tex]13b - 11c = 94[/tex]
[tex]-46 + 5b - 7c = -4 - 14b - 10c[/tex]
[tex]5b+14b - 7c + 10c = 46-4[/tex]
[tex]19b + 3c = 42[/tex]
Make c the subject
[tex]c = \frac{42 -19b}{3}[/tex]
Substitute [tex]c = \frac{42 -19b}{3}[/tex] in [tex]13b - 11c = 94[/tex]
[tex]13b - 11 \times (\frac{42 - 19b}{3}) = 94[/tex]
Multiply through by 3
[tex]39b - 11 \times (42 - 19b) = 282[/tex]
Open bracket
[tex]39b - 462 + 209b = 282[/tex]
Collect like terms
[tex]39b + 209b = 282+462[/tex]
[tex]248b = 744[/tex]
Solve for b
[tex]b = \frac{744}{248}[/tex]
[tex]b = 3[/tex]
Solve for c
[tex]c = \frac{42 -19b}{3}[/tex]
[tex]c = \frac{42 - 19 \times 3}{3}[/tex]
[tex]c = \frac{-15}{3}[/tex]
[tex]c = -5[/tex]
Solve for a in [tex]4a = -4 - 14b - 10c[/tex]
[tex]4a = -4 - 14 \times 3 - 10 \times -5[/tex]
[tex]4a = 4[/tex]
Divide by 4
[tex]a = 1[/tex]
Recall that matrix B is:
[tex]B =\left[\begin{array}{c}a&b&c\end{array}\right][/tex]
Hence, the value of matrix B is:
[tex]B =\left[\begin{array}{c}1&3&-5\end{array}\right][/tex]
Read more on matrix operations at:
https://brainly.com/question/16956653
what is 5/6 x 3 in fraction form?
Answer:
The answer is 5/2
Step-by-step explanation:
5/6 times 3
15/6=
5/2
The fraction form of (5/6)×3 after simplification is 5/2.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, (5/6)×3.
= (5/6)×(3/1).
Now in fraction multiplication, we simply multiply the numerator with the numerator and the denominator with the denominator.
= (5×3)/(6×1).
= 15/6.
= 5/2.
learn more about fractions here :
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Factor this expression completely
x^3+1/8
WILL MARK BRAINLIEST
Answer:
i think the answer is (x+1/2) (x^2-x/2+1/4)
Step-by-step explanation:
Help!Write the equation in slope- intercept form of the line that passes through (−1, 11) and is parallel to the graph of y = −8x − 2
Answer:
y = -8x + 3
Step-by-step explanation:
plug in the point and the slope into the slope intercept formula (y=mx+b)
the slope will be the same since you want the line to be parallel
11 = -8(-1) +b now solve for b
11 = 8 + b
-8 -8
3 = b
now write the equation with only the slope and the y intercept
y = -8x + 3
The equation of a line that passes through (-1, 11) and is parallel to the line y = - 8x + c is y = - 8x + 3.
What is the slope intercept form of a line?The slope intercept form of a line is given by -
y = mx + c
m is the slope of line
c is the y - intercept
Given is a line that passes through (-1, 11) and is parallel to the line -
y = − 8x − 2.
Since, the line is parallel to the line → y = − 8x − 2, therefore, their slope will be same and is equal to m = - 8.
Now, in the slope intercept form, assume that the equation of line looks like -
y = - 8x + c
Now, the line passes through the point (-1, 11), we can write -
11 = -8 x -1 + c
11 - 8 = c
c = 3
Hence, we can write the equation of the line as -
y = - 8x + 3
Therefore, the equation of a line that passes through (-1, 11) and is parallel to the line y = - 8x + c is y = - 8x + 3.
To solve more questions on Straight lines, visit the link below-
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Danielle wants to paint her daughters room pink. She has two different plans: Plan A: Use 5 parts white and 2 parts red. Plan B: Use four parts white and 1 part red.
If "Danielle" needs a total of 3 gallons of paint, how much will need to be red and how much will need to be white to make the least red mix? Use the mix that you selected from part A. (DOK 3)
Answer:
If we are assuming that plan A produces a whole gallon then you would need 15 parts white and 6 parts red
Step-by-step explanation:
Hell
Me 9tt grade math please
Please HELP!!
Which linear inequality is represented by the graph
Answer:
The answer should be y ≤ 1/3x - 1 I believe
PLZ help ASAP PLEASE
PART 1
A jury wants to reward the defendant 5% of $788,116. How much money will be awarded in this court case?
A dress that cost $32 is on sale at 75% of its usual price. What is the sale price?
John notices that about 18% of the earnings from his job go to taxes. If he works 14 hours at $6.25 an hour, how much of his check will he get to keep?
Our town's present population is 4,800. The 1980 population was only 95% of this number. What was the population in 1980.
In the last school election, 452 students voted. Mary received 45% of the votes. How many students voted for Mary? (Round to the nearest whole number.)
The local sales tax on clothing is 7%. How much sales tax will Mrs. Eversole pay on purchases totaling $250?
There are 500 tickets on sale for the school's concert. Thirty-six percent of the tickets have already been sold. How many tickets have been sold?
An airline normally charges $350 for a plane trip from California to New York. Next month passengers can make the trip for 80% of the usual fare. What will the trip cost next month?
Part 2
At 3 P.M., a chimney casts a shadow that is 135% of its actual height. If the shadow is 37.8 ft, what is the actual height of the chimney?
Yesterday 294 books were checked out at the library. This is only 41% of the number usually checked out that day. How many books are usually checked out in a day?
Manuel sold 42 of his baseball cards at a collector's show. If this represented 12.5% of his total collection, how many baseball cards were in his total collection?
The only kind of rock that floats in water is pumice. Chalk although denser, absorbs more water than pumice does. If a piece of chalk absorbs 32% of its weight, how big is the piece of chalk that absorbed 1.7 ounces of water?
Fifty-six percent of the free-throws Wanda shot went in. If Wanda made 14 baskets, how many did she shoot?
Father is driving from Newmark to Briton and has already driven 160 miles. This is 85% of the total trip. How far is it from Newmark to Briton?
Miguel correctly answered 24 questions on his science test and earned 80%. How many questions were on the test?
Part 3
In the 2001-2002 NBA season Anfernee Hardaway of the Phoenix Suns attempted 191 3-point shots and made 155. What percent of the his three-point shots did he miss? (Round to the nearest whole number)
In a poll of 225 students, 36 said that their favorite Thanksgiving food was turkey, and 56 said their favorite was stuffing. What percent of students liked turkey the best?
In 2001, Barry Bonds reached a base on 342 of 644 time up at bat. What percent of the time did he reach the base?
Twenty-three of the twenty-five students in our math class passed the test on proportions. What percent of the class passed the test?
Thirty-two of forty students in our class participate in glee club. What percent of the class belongs to the glee club?
Answer:
Part 1
1. The amount of money that the jury will award the defendant is $39,405.80.
2. The sale price of the dress is $24.
3. John will keep $71.75 of his check.
4. The population of the town in 1980 was 4,560.
5. 203 students voted for Mary.
6. Mrs Eversole will pay $17.50.
7. 180 tickets have been sold.
8. The trip will cost $280 next month.
Part 2
9. The actual height of the chimney is 28 ft.
10. The number of books that are usually checked out in a day is 717.
11. Manuel's baseball cards' total collection will be 336.
12. The chalk will be as big as 5.31 ounces.
13. Wanda shoots are 25.
14. From Newmark to Briton will be about 188 miles.
15. There were 30 questions on the test.
Part 3
16. Anfernee Hardaway missed 19%.
17. The percentage of students that liked turkey the best is 16%.
18. The percentage of the time, Barry reached the base is 53%.
19. The percentage of the class that passed the test is 92%.
Step-by-step explanation:
a. 5% of $788,116 = $39,405.80
b. 75% of $32 = $24
c. John's earnings = $6.25 * 14 = $87.50
Taxes = 18%; therefore, take home = 82% (100 - 18)
He will keep 82% of $87.50 = $71.75
d. Population in 1980 = 95% of 4,800 = 4,560
e. 45% of 452 = 203
f. Mrs Eversole will pay $250 * 0.07 = $17.50
g. 36% of 500 = 180
h. 80% of $350 = $280
i. Actual height = 37.8/135 * 100 = 28 ft
j. If 41% = 294, then 100% = 294/41 * 100 = 717
k. Manuel's total collection = 42/12.5% * 100% = 336
l. If 32% = 1.7 ounces, then the chalk will be 1.7/32% * 100 = 5.31 ounces.
m. If 56% = 14, then Wanda shot 14/56% * 100% = 25
n. Newmark to Briton will be 160/85% * 100 = 188 miles
o. If 80% = 24, then the number of questions = 24/80% * 100 = 30
p. Anfernee missed 36 shots = 19% (36/191 * 100)
q. 36/225 * 100 = 16%
r. The percentage of the time, Barry reached the base is 342/644 * 100 = 53%
s. 23/25 * 100 = 92%
A $230 suit is marked down by 10%. Find the sale price.
The sale price is $
(Round to the nearest dollar as needed.)
Answer:
$207
Step-by-step explanation:
Divide 230 by 10= $23
Subtract $23 from the original price which equals 207 dollars
Find the slope and the y-intercept of the graph of the linear equation y=−1/7x+2.
HELP THIS IS SO IMPORTANT I DONT HAVE MUCH TIME! D:
Answer:
slope equals negative 1/7 and the y inter is 2
(-7,4), (11, -14)
write and equation of a line given two points. identify the slope and y intercept.
help plz
WHO EVER DOES THIS GETS BRAINLIST PLUS 33 COINS
Tangent Property
Solve the following problems. Remember that all reasoning must be explained, and all steps of math work must be shown!
Answer:
see below
Step-by-step explanation:
1) Length of side OQ can be solved by using Pythagorean
OQ² = 3² + 4²
= √25
= 5
2) Length of side PQ can be solved by using Pythagorean
13² = 5² + PQ²
PQ² = 13² - 5²
= √144
= 12
3) Length of side RS and SQ can be solved by using Pythagorean
RS² = 13² - 6²
= √133
= 11.5
SQ² = 8² - 6²
= √28
= 5.3
9514 1404 393
Answer:
OQ = 5.0PQ = 12.0RS = 11.5, SQ = 5.3Step-by-step explanation:
A tangent meets the radius at right angles at the point of tangency. The triangles here are all right triangles, so the Pythagorean theorem can be used to find the missing side lengths.
__
1. a² = 3² +4² = 25
a = √25 = 5 = OQ
__
2. 5² +a² = 13²
a² = 13² -5² = 144
a = √144 = 12 = PQ
__
3. a = √(13² -6²) = √133 ≈ 11.5 = RS
b = √(8² -6²) = √28 ≈ 5.3 = SQ
can someone help me real quick
It costs $4 to enter the fair. each ride costs $2.50. you have $21.50. how many rides can you go on
Answer: 7 rides
Step-by-step explanation:
Since it takes $4 to enter the fair, you have
$21.50 - $4 = $17.50 left to spend on rides
$17.50/$2.50 = 7 rides
hope this helps!
i have many questions and please do not answer unless your absolutely sure!
1.
5/6➗1/2
2.
7/8➗2/3
3.
9/10➗ 3/4
4.
3/4➗9
5.
6/9➗6/7
6.
5/6➗3/10
7.
5/6➗3/4
8.
5/8➗3/5
9.
21/32➗7/8
please and thank you!
1. 5/3
2. 21/16
3. 6/5
4. 1/12
5. 7/9
6. 25/9
7. 10/9
8. 25/24
9. 3/4
I put all of this in exact form.
Mrs. Miner has a coupon for a 30 percent discount on any electronic item. she wants to buy an Xbox one s. The original amount of the item is $250. How much will she pay if she uses the 30 percent off coupon A. $75.00 B. $175.00 C. $220.00 D. $325.00 HELP ASAP I WILL GIVE OUT BRAINLYIST
Answer:
B. $175.00
Step-by-step explanation:
Since the coupon is 30% off, to find how much it costs after the coupon, use the opposite: 70%
Which equals 0.7
Multiply that by 250:
250 × 0.7 = 175
So the answer will be $175.00
Hope this helped!
Several pennies are tossed in the air. Twelve land heads up and fifteen land tails up. Which of the following ratios are correct?
Answer:
the ratio is 4/5
Step-by-step explanation:
27 pennies all together. just divide the number of each group by the same thing till you no longer get a whole number. like 3÷12 and 3÷15. Do it till you get the smallest whole number for each
What is the slope of the line
Answer:
-3/1 or -3
Step-by-step explanation:
you have to go down three from where the line crosses at a point then move over one to get to the next crossing point and that's the answer
Answer:
-3/1
Step-by-step explanation:
i think thats the answer
¯\_(ツ)_/¯
...........
Answer:
:)
Step-by-step explanation:
:)
1.Find the standard deviation of the data.
2.Explain what the mean and standard deviation tell you about the data you
collected
PLEASE HELP QUICK ILL MARK BRAINLIEST‼️
Answer:
1.33
Step-by-step explanation:
I used a standard deviation calculator
Ill edit once i figure it out
in a sample 3/15 of the computers were defective which of thr following anwer choices represents 3/15 as a decimal
Answer:
.20
Step-by-step explanation:
3/15 -- lets simplify
3/15 = 1/5, which is 20% or .20
Write the equation in slope- intercept form
4x+2y=12
Thanks!
what is $220 marked up 60%
Answer:
352
Step-by-step explanation:
220 ÷ 100 = 2.2
2.2 x 60 = 132
132 + 220 = 352
I hope this helps, have a good day and stay safe! if this is right can i get a brainiest? :3
Floyds employer purchased a health insurance plan that cost $825 per month. Floyd pays $105 toward the plan each month. What is the annual value of the employer's contribution?
A. $1260.00
B. $9900.00
C. $8640.00
D. $7160.00
which equation describes the line that passes through (2, 1) (0, -5?
Answer:
well, you probably have options that you didn't include, but..
(-5 -1)/ 0-2
4/ -2
-2 is the slope of the line
and an option of what the equation is:
y - 1 = -2( x - 2)
y -1 = -2x +4
y = -2x +5
Step-by-step explanation:
What is the answer to this problem?
Answer:
B
Step-by-step explanation:
You can knock out A, because this isn't talking about temperature, and C and D are proven untrue by the data. The only one left is B, which if you check, is also consistant with the data.
Write a rule for the transformation of triangle RST. (x,y) --> ( , )
Answer:
A rule for the transformation of triangle RST is (7, -3)
Kenton has read 48 pages of his book. If this is equal to 40% of his book, how many pages is the entire book?
Answer:
120
Step-by-step explanation:
We know that 40% of x is 48, we can set this porportion (is that what it is called?).
48/x=40/100Cross multiply, 4800=40xDivide, 120=xCheck your work:
40/100=4/10=2/548/120=4/10=2/5Answer:
120
Step-by-step explanation:
because i had it on a dca