Answer:
-20
Step-by-step explanation:
-2x - 2
-2(9) - 2
-18 - 2
-20
PLEASE HELP
If x = 3x + 4 - 1 , then what does -x equal?
Answer:
-4/5 = x
Step-by-step explanation:
Answer:
3/2
Step-by-step explanation:
x = 3x + 4 - 1
we can subtract 1 from 4
x = 3x + 3
subtract 3x from both sides
-2x = 3
divide both sides by -2
x = -3/2
so -x would equal -(-3/2) = 3/2
If y = 56 when x = 49 find,
y when x = 81
Answer:
step by step explanation
y= 56 x=49
y= 8x
=8*7
=56
then
y= 8x
= 8*9
= 72
x= 9²
= 81
Mojave art club is selling t shirts for a fundraiser. A local company charges $35 to set up the logo and $4.25 per t shirt if x t shirts are printed by the business.
If the art club charged $10 per shirt how many shirts would need to be sold to cover their costs?
function C(x)=35+4.25x/x
Answer:
At least 7 shirts would need to be sold to cover their costs
Step-by-step explanation:
Cost of producing x t-shirts.
The cost of producing x t-shirts is a flat fee of 35 plus 4.25 per t-shirt. So
[tex]C(x) = 35 + 4.25x[/tex]
Earnings of selling x t-shirts:
Charges $10 per t-shirt, so it earns 10 for each t-shirt it sells.
[tex]E(x) = 10x[/tex]
How many shirts would need to be sold to cover their costs?
To cover the costs, we need that the earnings are equal or higher than the costs. So
[tex]E(x) \geq C(x)[/tex]
[tex]10x \geq 35 + 4.25x[/tex]
[tex]5.75x \geq 35[/tex]
[tex]x \geq \frac{35}{5.75}[/tex]
[tex]x \geq 6.09[/tex]
Since we cannot sell a decimal part of a shirt, at least 7 shirts would need to be sold to cover their costs
What is the angle of elevation from point A to point C?
Answer: b
Step-by-step explanation:
By the alternate interior angles theorem, the angle of elevation and the angle of depression have the same measure.
The measure of angle A is 32 degrees or the measure of the angle of elevation is 32 degrees option (b) 32 degrees is correct.
What is trigonometry?Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
It is given that:
The right-angle triangle is shown in the picture.
The right-angle triangle is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.
The trigonometric ratio is defined as the ratio of the pair of a right-angled triangle.
As the two lines are parallel to each other and a transversal is intersect the parallel lines so the angle would be same as 32 degrees
The angle A = 32 degrees
Thus, the measure of the angle A is 32 degrees or the measure of the angle of elevation is 32 degrees option (b) 32 degrees is correct.
Learn more about trigonometry here:
brainly.com/question/26719838
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You are making an audience selection. The first selection narrows your audience of 240,000 by 25% and the next selection narrows that audience 40%. What is the size of your resulting audience?
Answer:
the answer is c. 108,000
Step-by-step explanation:
240,000×25%=60,000
240,000-60,000=180,000
180,000×40%=72,000
180,000-72,000=108,000
your answer is 108,000
Answer:it’s c
Step-by-step explanation:
108,000
How many ways are there to select 15 cookies if at most 2 can be sugar cookies and at least 3 must be chocolate chip
Answer:
A cookie store sells 6 varieties of cookies. It has a large supply of each kind. How many ways are there to select 15 cookies if at most 2 can be sugar cookies?
T-Shirt Costs 275 Total Cost Number of T-Shirts The cost of t-shirts varies directly with the number of t-shirts. The data is shown in the graph. If x = is number of t-shirts, and y = the cost which equation models of great varlation
Plz help will give brainliest answer
Answer:
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Answer:
8 -4
Step-by-step explanation:
help me please thank you in advance
Answer:
Fourth option) (x-4.5)^2=16.25
Step-by-step explanation:
It's the same
Two sheets of plastic have a combined thickness of 1.08 centimeters. One sheet is 0.675 centimeters thick. What is the thickness of the other sheet? Answer with supporting work:
Answer:
1.08
Step-by-step explanation:
that is super long but easy
A national rental car company purchased compact and midsize cars.
The company budgeted $14,000,000 to buy a minimum of 650 cars altogether.
The company did not exceed their budget.
The company paid an average of $13,000 for each compact car and $28,000 for each midsize car.
Which system of inequalities represents all possibilities for the number of compact cars,c, and the number of midsize cars, m, that could have been bought?
{c+m≥65028,000c+13,000m≤14,000,000
{m+c≥65028,000m+13,000c≤14,000,000
{m+c≤65028,000m+13,000c≥14,000,000
{c+m≤65028,000c+13,000m≥14,000,000
Answer:
B
Step-by-step explanation: 100%
WILL GIVE BRAINLIEST!!!!!!!
what's 1+1? ;)
Answer:
2!! :DDD
Step-by-step explanation:
HAVE A GOOD DAYYYY :]
i kinda need your help.. pls help me...
I'm really not good at math pls... answer it or pls explain me how do I do this??? how can I multiply or divide this????? PLS HELP ME
What is the angle of elevation of the sun when a 42-ft mast casts 16 ft shadow?
thanks
Answer:
Heres how you do it
Step-by-step explanation:
10+2 =12 which means 72
Hi, I need help asap thx u
Hi can somebody pllsss tell me the answer
Answer:
choice 3
Step-by-step explanation:
Answer:
Fourth Option
Step-by-step explanation:
The perimeter of a shape is all sides added. So, if you do 2x + 2x + (x+1) + (x+1), you would get 6x+2. To get the answer to the question, you verify to see which one of the options equal to 6x+2.
First option:
2x(x+1) and 2(2x) + 2(x+1). You find what this equals. 2x(x+1) = 2x^2+2x so we can automatically elimate this one.
Second option:
2x(x+1) and 2x+2x+2x+1. Here again you see 2x(x+1) which equals 2x^2+2x and is not correct so we eliminate this.
Third option:
4x(2x+2) and 2x(x+1) + 2x(x+1). Once more you see 2x(x+1) but added to 2x(x+1) which would basically equal 2x^2+2x *2. Therefore, it's not this one.
Fourth option:
6x+2 and 2x+(x+ 1) +2x + (x+ 1). Now this one looks right because we already got 6x+2 and this is the only option that presents that but also because we initially solved 2x + 2x + (x+1) + (x+1) and this equals 2x+(x+ 1) +2x + (x+ 1).
I guess you don't really have to solve each of them you can kinda see and tell that the last one seems right but if you're not sure you should use the process above.
I hope this helped!
16. J.D. opened a savings account with $425. After
2 years, the total interest he earned was $10.20.
What was the annual interest rate?
Answer:
1.2%
Step-by-step explanation:
Solving our equation
r = 10.2 / ( 425 × 2 ) = 0.012
r = 0.012
converting r decimal to a percentage
R = 0.012 * 100 = 1.2%/year
The interest rate required to
accumulate simple interest of $ 10.20
from a principal of $ 425.00
over 2 years is 1.2% per year.
Which set of ordered pairs is made up of points on the graph of the function below?
y = -4x + 8
A. (12,-1), (8,0), (4,1), (0,2)
B. (-1,12), (0,8), (1,4), (2,0)
C. (12,-1), (8,0), (1,4), (2,0)
D. (-1,12), (8,0), (1,4), (0,2)
Answer:
a
Step-by-step explanation:
d
an aircraft flew 5 hours with the wind. the return trip took 6 hours against the wind. if the speed of the plane in still air is 220 miles per hour more than the speed of the wind, find the wind speed and the speed of the plane in still air
I need help on this please.... It would be highly appreciated!
Answer:
Equation to find area: l*w
Unknown measurement: w = 4,700/94 = 50
Equation to find perimeter: l+l+w+w or l*2+w*2
Perimeter: 288
Hope this helps :)
what is the greatest common factor of 75 120 90?
Answer:
15
Step-by-step explanation:
Which is more, 7 grams or 6,999 milligrams?
Answer:
7 grams
Step-by-step explanation:
cause 1 gram is 1000 milligrams and therefore 7 grams is more than 6,999 nilligrams
As shift manager at a local fast food place, you are responsible for ensuring quality control. You do not want to weigh all the frozen hamburger patties that get delivered by your supplier to make sure they weigh four ounces on average, so you choose 100 patties at random. You calculate that the sample mean weight of patties is 2.6 ounces and the standard deviation of the weight of hamburger patties to be 0.4 ounces.
Required:
a. Test the hypothesis that the population mean weight of patties is equal to 4 ounces.
b. You are particularly concerned about the population weight being under 4 ounces, is there any reason for concern? Explain using the concept of a confidence interval.
Answer:
Kindly check explanation
Step-by-step explanation:
xbar = 2.6
Sample size, n = 100
s = 0.4
Mean, μ = 4
The test statistic :
(xbar - μ) ÷ s/sqrt(n)
(2.6 - 4) ÷ 0.4/sqrt(25)
1.4 ÷ 0.08
= −17.5
Critical tvalue for 95% confidence interval :
df = n - 1 = 25 - 1 = 24
Tcritical at 0.05/2; df
Tcritical = ±2.064
Since, Tstatistic value does not fall within the Tcritical value ±2.064, we reject the Null
Using the p value from Tstatistic calculator :
P value at t = - 17.5 at 0.05 < 0.000001
Since p value is < 0.05, we reject H0.
What is the coefficient for x in the equation below?
7x + x = 14
a 7
b 1
c 2
d 10
can someone please help me with question number 5 please
Ana is using a photocopier to make
315 copies of a poster. It takes 3
minutes to print the first 63 posters.
.
If the photocopier continues to print
at the same rate, how many more
minutes will it take to complete the
job?
Answer:
4
Step-by-step explanation:
Which pair of triangles can be proven congruent by SAS?
AA
Solve the equation:
8x + 6 – 9x = 2 - X + 4
Can somebody please help me I really wanna go to sleep :(
1024 by 2x10
I hate math
Calculate the input when the output is n
Answer:
You didn't post an image.
Step-by-step explanation: