Answer: If you have a positive and a negative, there is one dash left over, and the answer is negative.
Answer:
Postive plus negative equals negative
Step-by-step explanation:
An example is:
[tex]4-8=-4[/tex]
You see how it is a negative
Hope this helps
What is the first step in solving the equation ģx+3x+2 = 57
2
1
1
Subtract from each side of the equation.
Add 2 to each side of the equation.
Combine like terms.
Multiply each side of the equation by 5.
Answer:
its Combine like terms sorry the answer is kind of late
Step-by-step explanation:
The first step in solving the given equation is Combine the like terms.
What is an Equation?An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.
Given is an equation,
gx + 3x + 2 = 57
Like terms are terms which are having the same variable or they are constants.
Here gx and 3x are like terms since both of then has the variable x.
2 and 57 are constants.
gx + 3x + 2 = 57
Combine the like terms.
(g + 3)x = 57 - 2
(g + 3)x = 55
Hence the first step is combining like terms.
Learn more about Equations here :
https://brainly.com/question/8419857
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A model for a company's revenue is R = -12p2 + 240p + 10,000, where "p" is the price
in dollars of the company's product. Find the maximum revenue.
Answer:
Maximum revenue is 11200 at price p=10.
Step-by-step explanation:
If a quadratic function is defined by [tex]f(x)=ax^2+bx+c[/tex] and a<0, then it is maximum at [tex](\frac{-b}{2a},f(\frac{-b}{2a}))[/tex].
The revenue model of a company is
[tex]R=-12p^2+240p+10,000[/tex]
Here, [tex]a=-12, b=240,c=10000[/tex].
So,
[tex]-\dfrac{b}{2a}=-\dfrac{240}{2(-12)}=10[/tex]
It means, revenue is maximum at price 10.
Substitute p=10 in the revenue function.
[tex]R=-12(10)^2+240(10)+10000[/tex]
[tex]R=-1200+2400+10,000[/tex]
[tex]R=11,200[/tex]
Therefore, maximum revenue is 11200 at price p=10.
Vanessa has a piggy bank with 4 one-dollar bills and 3 five-dollar bills. She reaches in and randomly pulls out one of the one-dollar bills. Without putting it back, she takes out another bill.
Are these events dependent or independent?
A.
dependent
B.
independent
Answer:
A
Step-by-step explanation:
The second event is dependent on the first.
(3 * 2.50 + 8 * 1.25)d (use distributive property)
Answer:
Step-by-step explanation:
The distributive property of multiplication over addition can be used when you multiply a number by a sum. For example, suppose you want to multiply 3 by the sum of 10 + 2. 3(10 + 2) = ? According to this property, you can add the numbers and then multiply by 3.
30 points for the right answer! I really need help...
a. What is the estimate for the probability of selecting a blue crayon?
b. What is the estimate for the probability of selecting a brown crayon?
c. What is the estimate for the probability of selecting a red or yellow crayon?
d. What is the estimate for the probability of selecting a pink crayon?
e. If there are 300 crayons in the bag,how many will be red? Show your work.
Answer:
a) 1/6, b) 11/36, c) 1/4, d) 0, e) 50
Step-by-step explanation:
a. What is the estimate for the probability of selecting a blue crayon?
6/36= 1/6b. What is the estimate for the probability of selecting a brown crayon?
11/36c. What is the estimate for the probability of selecting a red or yellow crayon?
(6+3)/36=9/36=1/4d. What is the estimate for the probability of selecting a pink crayon?
0, there is no pinke. If there are 300 crayons in the bag,how many will be red? Show your work.
300*6/36=300/6=50Answer:
a) 1/6, b) 11/36, c) 1/4, d) 0, e) 50
Ellen purchased two binders for $1.25 each, two binders for $3.75 each, two packs of paper for $1.50 each, four packs of pens for $1.75 each, and four packs of pencils for $2.25 each. How much did Ellen spend on office supplies?
Answer:
$29
Step-by-step explanation:
2*1.25
2*3.75
2*1.5
4*1.75
4*2.25
multiply these and add them all up and you get 29
Answer:
$29.00
Step-by-step explanation:
you can solve this by writing a simple equation. (2 x 1.25) + (2 x 3.75) + (2 x 1.5) + (4 x 1.75) + (4 x 2.25) = Y. You can solve this by hand by following PEMDAS, or you could simply just plug it into a calculator.
As part of the interview process for a position at a manufacturing company, candidates are asked to take an aptitude test and a personality test. The maximum score on the aptitude test is 120 and the maximum score on the personality test is 48.
Alan, a human resources employee, randomly selects test scores from 8 of the candidates. These scores are represented in the table shown.
Aptitude Test
107
98
102
97
85
104
95
89
Personality Test
40
42
37
30
39
44
46
33
a)What is the estimated mean score on the aptitude test for all candidates for a position at the manufacturing company?
Round your answer to the nearest whole number.
b)What is the estimated mean score on the personality test for all candidates for a position at the manufacturing company?
Round your answer to the nearest tenth.
Answer: a) 97
b) 38.9
Step-by-step explanation:
a) add all of the numbers from the aptitude test together and then divide that number by the number of scores recorded, so it would be 777/8 which equals 97
b) add all of the numbers from the personality test together and then divide that by the number of scores recorded, so it would be 311/8 which equals 38.9
i hope this helps.
I need the work and answer for this
Answer:
Step-by-step explanation:
h(x) = x² - 2x + 6
h(0) = 0 - 0 + 6 = 6
h(-2) = (-2)² -2*(-2) + 6
= 4 + 4 + 6
= 14
A rectangular prism has a surface area of 448 cm2. It’s length is 14 cm and it’s width is 6 cm. Find the height.
Given:
Length, l = 14 cmBreadth, b = 6 cmArea of rectangular prism ( cuboid ) = 448 cm²To find out:
Find the height, h ?
Formula used :
Area of rectangular prism ( cuboid ) = 2 ( lb + bh + hl )
Solution:
We know that that,
Area of rectangular prism ( cuboid ) = 2 ( lb + bh + hl )
=> 448 = 2 ( 14 × 6 + 6 × h + h × 14 )
=> 448 = 2 ( 84 + 6h + 14h )
=> 448 = 2 ( 84 + 20h )
=> 448 = 168 + 40h
=> 40h = 448 - 168
=> 40h = 280
=> h = 280/40
=> h = 7 cm
PLEASE HELP ANSWER WILL GET BRAINLIEST!!! What is the value of the expression (2 to the power of 4) squared.
Answer:
2^8 = 256
Step-by-step explanation:
(2^4)^2
We know that a^b^c = a^(b*c)
2^(4*2)
2^8
256
Answer:
256
Step-by-step explanation:
2^4 = 16
(2 x 2 x 2 x 2)
16^2 = 256
(16 x 16)
There are 15 m and ms that are peanut or small, 2 m and ms that are peanut and small, and 9 m and ms that are small. How many m and ms are peanut?
Answer:
8
Step-by-step explanation:
There are 15 -9 = 6 that are peanut and not small. Adding the 2 that are peanut and small, there are a total of 8 peanut M&Ms.
Answer:
8 peanut
Step-by-step explanation:
15 that are peanut or small
2 that are peanut and small
9 that are small
15 - 9 = 6
There are 6 that are just peanut
and there are 2 that are peanut and small
6+2 =8 that are in the peanut category
(b) A hairdryer connected to the mains supply takes a current of 5.5 A.
(i) Which of these fuses should be used with the hairdryer?
(1)
ВА
3 A
DB 5A
С
7 A
OD 13 A
(ii) Explain your answer.
Answer:
3a a hairdryer connected to the mains supply take a current of 5.5 A
answer by
Isha Pathak
3.
Evaluate |-x - 2y1 for x = -5 and y = 5.
Answer:
|-(-5)-2(5)|=|5-10|
=5
show the complete steps to change -x^2 + y^2 - 18x - 14y -132=0 to standard form.
Answer:
(x - 9)² + (y - 7)² = 262
Step-by-step explanation:
x² + y² - 18x - 14y - 132 = 0
Rearranging the equation:
y² - 14y + x² - 18x - 132 = 0
add 132 to both sides:
y² -14y + x² - 18x - 132 + 132 = 0 + 132
y² -14y + x² - 18x = 132
add to both sides the square of half of the coefficient of y (i.e (14/2)² = 49)
y² -14y + 49 + x² - 18x = 132 + 49
add to both sides the square of half of the coefficient of x (i.e (18/2)² = 81)
y² -14y + 49 + x² - 18x + 81 = 132 + 49 + 81
y² -14y + 49 - x² - 18x - 81 = 262
y² - 7y - 7y + 49 + x² - 9x - 9x - 81 = 262
y(y - 7) - 7(y - 7) + x (x - 9) -9(x - 9) = 262
(y - 7)(y - 7) + (x - 9)(x - 9) = 262
(y - 7)²+ (x - 9)² = 262
(x - 9)² + (y - 7)² = 262
Which equation in point-slope form contains the points (8, 10) and (–4, 2)?
25) The endpoints of the diameter of a circle are (6, 5) and (−2, 3). Which equation represents the circle? A) (x − 2)2 + (y − 4)2 = 9 B) ( x+ 2)2 + (y + 4)2 = 16 C) (x − 2)2 − (y + 4)2 = 16 D) (x − 2)2 + (y − 4)2 = 17
Answer:
Option D.
Step-by-step explanation:
It is given that the endpoints of the diameter of a circle are (6, 5) and (−2, 3). So, midpoint of these end point is the center of the circle.
[tex]Center=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
[tex]Center=\left(\dfrac{6+(-2)}{2},\dfrac{5+3}{2}\right)[/tex]
[tex]Center=\left(\dfrac{4}{2},\dfrac{8}{2}\right)[/tex]
[tex]Center=\left(2,4\right)[/tex]
So, center of the circle is (2,4).
Length of diameter of the circle is the distance between (6, 5) and (−2, 3).
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]d=\sqrt{(-2-6)^2+(3-5)^2}[/tex]
[tex]d=\sqrt{(-8)^2+(-2)^2}[/tex]
[tex]d=\sqrt{64+4}[/tex]
[tex]d=\sqrt{68}[/tex]
[tex]d=2\sqrt{17}[/tex]
So, radius of the circle is
[tex]r=\dfrac{d}{2}=\dfrac{2\sqrt{17}}{2}=\sqrt{17}[/tex]
Standard form of a circle is
[tex](x-h)^2+(y-k)^2=r^2[/tex]
where, (h,k) is center of the circle and r is radius.
Substitute h=2, k=4 and [tex]r=\sqrt{17}[/tex] in the above equation.
[tex](x-2)^2+(y-4)^2=(\sqrt{17})^2[/tex]
[tex](x-2)^2+(y-4)^2=17[/tex]
Therefore, the correct option is D.
The prime factorization of 36 is 4 • 3^2. True False
Answer:
False
Step-by-step explanation:
4 is not prime, it would be 2^2*3^2
A car averages 27 miles per gallon. If gas costs $4.04 per gallon, which of the following is closest to how much the gas would cost for this car to travel 2,727 typical miles? Individual Question $44.44 $109.08 $118.80 $408.04 $444.40
Answer: $408 04
Step-by-step explanation:
Average of the car = 27 miles per gallon
Petrol required to travel 2727 miles = 2727 / 27 = 101 gallons
Cost of petrol = 101 x 4.04 = 408.04
A 4 cup bottle of shampo costs 24.72 what’s the price per pint
Answer:
6.18
Step-by-step explanation:
4 cups ............... 24.72
1 cup ......................... x
x = 1×24.72/4 = 6.18
Marcia has two credit cards and would like to consolidate the two balances into one balance on the card with the lower interest rate. The table below shows the information about the two credit cards Marcia currently uses.
Card A
Card B
Amount
$1,389.47
$1,065.32
APR
16%
12%
Monthly Payment
$39.38
$28.05
After 4 years, approximately how much will Marcia have saved in interest by consolidating the two balances?
a.
$1,890.24
b.
$133.92
c.
$543.84
d.
$1,346.40
ANSWER IS B
Answer:
Option B ,$133.92 is correct
Step-by-step explanation:
By consolidating both balances in Card B,APR of 12% would apply to funds in card A as well
Let us approach the question by solving for monthly payment of Card A using 12% APR as follows while making use of excel pmt formula:
=pmt(rate,nper,-pv,fv)
rate is the monthly rate on the card which is 12%/12=1%
nper is the number of months of payment which is 12 months * 4 years=48
pv is the current balance in the card which is $1,389.47
fv is the total amount of monthly repayment which is taken as zero
=pmt(1%,48,-1389.47,0)=$ 36.59
Using 16% monthly payment is $39.38 which is given already
Total monthly payments for 16%=$39.38*48=$1890.24
Total monthly payments for 12% APR=$36.59*48=$1756.32
savings in total repayments=savings in interest=$1890.24 -$1756.32 =$133.92
Answer:
B. $133.92
Step-by-step explanation:
Just took the test and got it right
A circle has a radius of 5 ft, and an arc of length 7 ft is made by the intersection of the circle with a central angle. Which
equation gives the measure of the central angle, o?
theta= 5/7
theta= 7/5
theta= 7 + 5
theta= 7 • 5
Answer:
A circle with radius of 5 feet would have a circumference of
(2*5*PI) = 31.4159265359
This would mean the 7 foot arc would be (7 / 31.4159265359 ) or 0.2228169203 of the circle.
0.2228169203 * 360 = 80.2140913183 degrees
80.2140913183 degrees = 1.4 radians
and 7/5 = 1.4
Therefore the answer is the second one 7 / 5
Step-by-step explanation:
Answer:
The answer to this question is
2. B) Theta = Seven-fifths
The answers to the entire test (except for the ones i got wrong and don't know) are
1. B) pi/4 * 180/pi
2. B) Theta = 7/5
3. B) r = 14/6
4. ? (I know that it is not B) 45 * 180/pi)
5. C) 60°
6. D) 4pi
7. B) 19.1 in.
8. D) 7.1 cm
9. C) 150°
10. ? (I know that it is not C) 3pi/10, pi/2, 2pi/3, 60°, 255°)
Step-by-step explanation:
Just took it. Edg 2021. Hope this helps :) (smiley's name is George, George says hi)
please answer this please
Answer: A
Step-by-step explanation: Range is the distance between one point to the next. That would make A the correct answer.
Three interior angles of a quadrilateral measure 55° 117° and 120° what is the measure of the fourth interior angle.
68 degrees
78 degrees
88 degrees
98degrees
Answer:
[tex] \boxed{x \degree = 68 \degree} [/tex]
Given:
Measure of three interior angles of a quadrilateral is 55° , 117° and 120°
Step-by-step explanation:
Let the fourth interior angle be 'x'
The Interior Angles of a Quadrilateral add up to 360°
[tex] = > x \degree + 55 \degree + 117 \degree + 120 \degree = 360 \degree \\ \\ = > x \degree + 172 \degree + 120 \degree = 360 \degree \\ \\ = > x \degree + 292 \degree = 360 \degree \\ \\ = > x \degree = 360 \degree - 292 \degree \\ \\ = > x \degree = 68 \degree[/tex]
Please help with this
Answer:
It is D.
Step-by-step explanation:
having an issue with these 3 parts. I am on my last try.
Answer:
1.mi^3,cubic inches, m^3
2. a)24 b)72
3) 34/3pi meters
Step-by-step explanation:
any thing to the ^3 measures vo;ume
2. a) 4*6=24 b) 24*3=72
3. volume is πr2h
3
Select the equivalent expression.
Answer:
D.
Step-by-step explanation:
When you exponent a exponent, you multiply the 2 exponents together.
Answer:
The Answer is D
Step-by-step explanation:
When there is a fraction with exponents in parentheses that has an exponent, you multiply the outer exponent to the inner ones
Anton's mechanic charged $75 for a radiator and $50 per hour for labor. The total cost to install the radiator was $325.
Approximately how long did it take the mechanic to install the radiator?
Answer:
5 hours because 50 multiply by 5 is 250 and more 75 for radiator
What is the vertex of the graph of y = x2 + 2x + 1? (0, 1) (−1, 0) (−2, 1) (1, 4)
Answer:
(-1,0)
Step-by-step explanation:
the vertex is the highest or lowest point of a function where both lines meet and since (-1,0) is the lowest point and the next 2 are above it, so that makes (-1,0) the vertex.
Hope it helps the explanation is a little poor but I tried my hardest.
I attached a photo and if you look you can kind of see what I'm saying.
Explain what other reasons might slow or speed up the spread of the virus in any school.
Answer:
Sports, Class, Bathrooms
Step-by-step explanation:
When playing sports it is near impossible to social distance. Tackling contact, you name it. Sitting in class, sharing desks with the classes that come before. Especially that student that hides gum under the table. Everyone shares bathrooms. It can't be cleaned as soon as someone uses it. All of these are reasons for the virus to spread.
Answer:
A large body of students could prove to be very dangerous, given how contagious the virus in question is. Students and teachers make contact with each other constantly, and that will surely infect nearly 70% of the facility's occupants.
45% of 40 is 18% of what number?
Answer:
45
Step-by-step explanation:
40 is 18% of 45
The number that equals 18 is 45.
Answer: 45
Hope this helps.