Answer:
Step-by-step explanation:
A 30-60-90 triangle is a special right triangle whose angles are 30º, 60º, and 90º. The triangle is special because its side lengths are always in the ratio of 1: √3:2
A department store buys 400 shirts at a cost of $7 200 and sells them at a selling
price of $20 each. Find the percent markup
The percent markup is % round to the nearest whole number as needed) .
Answer:
down below.
Step-by-step explanation:
20 × 400 = 8000
8000 - 7200 = 800
therefore the % mark up is 10%, because 10% of 8000 is 800.
800 + 7200 = 8000
Answer:
the answer is 11%
Step-by-step explanation:
hit me with praise and love this answer HAHA your welcome
At a concession stand, five hot dog(s) and four hamburger(s) cost $16.75; four hot dog(s) and five hamburger(s) cost $17.00. Find the cost of one hot dog and the cost of one hamburger.
Step-by-step explanation:
Let x and y denote the cost of one hot dog and the cost of one hamburger.
ATQ,
Five hot dog(s) and four hamburger(s) cost $16.75 and four hot dog(s) and five hamburger(s) cost $17.00
So,
5x+4y = 16.75 ....(1)
4x + 5y = 17 ....(2)
Multiply equation (1) by 4 and equation (2) by 5.
20x+16y = 67 ....(3)
20x+25y= 85 ....(4)
Subtract equation (3) and (4).
20x+16y-(20x+25y) = 67-85
16y-25y = -18
-9y = -18
y = 2
Put the value of y in equation (2).
4x + 10 = 17
4x = 7
x = 1.75
So, the cost of one hot dog is $1.75 and that of cost of one hamburger is $2.
An architect is designing square windows with an area of(x2 + 16x +64) ft?. The dimensions of the
windows are of the form ax +b, where a and b are whole numbers.
Part 1 out of 2
Find an expression for the perimeter of the windows.
The perimeter of the square is represented by
(x+
6 ft.
A) The dimensions are (x+10) by (x+10).
B) The perimeter is given by 4x+40.
C) The perimeter when x is 4 is 56.
The quadratic can be factored by finding factors of c, the constant, that sum to b, the coefficient of x. Our c is 100 and our b is 20; we want factors of 100 that sum to 20. 10*10=100 and 10+10=20, so those are what we need. This gives us (x+10)(x+10 for the factored form.
Since the dimensions are all (x+10), and there are 4 sides, the perimeter is given by 4(x+10). Using the distributive property we have 4*x+4*10=4x+40.
To find the perimeter when x=4, substitute 4 into our perimeter expression:
4*4+40=16+40=56.
Answer:
A) The dimensions are (x+10) by (x+10).
B) The perimeter is given by 4x+40.
C) The perimeter when x is 4 is 56.
Step-by-step explanation:
I filled two notebook papers to solve this
Find the slope of the line connecting these points. (8,3) and
(21,3)
Answer:
m=0
Step-by-step explanation:
3-3/21-8
0/21-8
0/13
0
Answer:
(8, 3) (21, 3)
slope = change in y divided by change in x
slope = (3 - 3) / (21 -8)
slope = 0 / 13
slope = 0
Step-by-step explanation:
If my teacher has 45 hair pieces and she cuts 38 how many does she have left
Answer:
45 you have and 38 is cutted down
then 45-38 = 7 hair piece
Which statement is correct?
A. Secant is the reciprocal of tangent.
B. Cosine is the reciprocal of cosecant.
C. Cotangent is the reciprocal of secant.
D. Cosecant is the reciprocal of sine.
Which expression is NOT equivalent to 8x ?
Answer:
B
Step-by-step explanation:
7x + 1 isn't equal to 8x
For example:
Addition. In this equation, you can add all of the coefficients (2, 5, and 4) because the variables are the same (a).
2a + 5a + 4a = 11a
Subtraction. In this equation, you can subtract all of the coefficients (11, 5, and 4) because the variables are the same (a).
11a – 5a – 4a = 2a
6. The octopus was swimming 3 feet below the surface. If the octopus swam up 3
feet? Represent the octopus location using an integer.*
Answer:
Octopus Location: 0
Step-by-step explanation:
If the octopus was swimming 3 ft below the surface, it's considered -3.
The octopus then swam up 3 feet, so we add 3 to the -3 from the previous statement.
-3 + 3 = 0
expand and simplify (x-2)(2x+3)(x+1)
pls help me frens......
Answer:
V= 8
x=4.5
BCF =48 CFE=132
V=352.8 =8.4x8.4x5
For the volume one i cant read the number but if the bottom number is 8 then V=803.84
if its 6 then v = 452.16
Step-by-step explanation:
v= 2x2x2 v = 8
x is 11x-9=7x+9 | 4x=18 | x=4.5
15x=180 x=12 | CFE = 11x12=132 | BCF = 4x12=48
The table shows the number of members at a gym each month from January to July
Answer: Please look at my work below!~
Step-by-step explanation:
Have a great rest of ur day!（＾∀＾●）ﾉｼ
help me pls i will give brainly
In two or more complete sentences, describe the transformation(s) that take place on the parent function, f(x) = log(x), to achieve the graph of g(x) = log(-2x-4)-1.
Answer:
In two or more complete sentences, describe the transformation(s) that take place on the parent function, f(x)… ... parent function, f(x) = log(x), to achieve the graph of g(x) = log(-2x-4) + 1. 2 ... Re-write the transformed function by taking -2 common,. Step 1 -. Shift 2 unit left i.e, f(x)→f(x+b) shifting left by b unit.
Step-by-step explanation:
Simplify and write answer in standard form.
Answer:
[tex]x^3+8x^2+2x+1[/tex]
Step-by-step explanation:
Combine like terms (terms with the same exponent).
[tex]x^3+(3x^2+5x^2)+(x+x)+1=x^3+8x^2+2x+1[/tex]
"Standard form" means to list terms so the exponents go from high to low (descending order).
3. ADD:
35 degrees 25 minutes 14 seconds
50 degrees 38 minutes 55 seconds
need help :( plsssssssssss
Answer:
The polygon is a triangle, and is not a regular polygon.
Step-by-step explanation:
The polygon is a triangle because of it's three sides. It's also a non regular polygon since it's no equilateral or equiangular.
quais as raízes de:
(x^2)-(2^x)-1=0
Answer:
Step-by-step explanation:
You and your friend decide to go to Red Robin to eat. You are both part of the rewards club and receive coupons in the mail. You have a coupon a coupon for 10% off the total bill. Your friend has a coupon for $5 off the total bill. Which coupon should you use to save the most money if the total bill was $29.90?
A. the $5 off coupon
B. the 10% off coupon
C. either one
D. cannot be determined
Answer:
B because if you use 10% off it would be less thN the 5% off one the other 2 answer make no sense
x2 - 3|x - 2| - 4x = - 6
Solve for x
Answer:
if that is x^2 -3|x-2|-4x=-6, then this should be the answer other wise it would be a biiiit diffrent
Step-by-step explanation:
Which of the following equations could be solved to determine the length of RS?
Answer:
[tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]
Step-by-step explanation:
Given:
S = 52.5°
s = QR = 7
Q = 80°
q = RS = ?
Required:
Equation that could be used to find the length of RS
Solution:
We would need the law of Sines which is given as:
[tex] \frac{Sin(A)}{a} = \frac{Sin(B)}{b} = \frac{Sin(C)}{c} [/tex]
Applying the Law of Sines, we would have the following equation:
[tex] \frac{Sin(Q)}{q} = \frac{Sin(S)}{s} [/tex]
Plug in the values
[tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]
Therefore, the equation that can be used to determine the length of RS is [tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]
HELP PLEASE BRAINLIEST AND ITS EASY\
What is the mean of the values in the dot plot?
Enter your answer in the box.
Answer: 2
Step-by-step explanation:
2+2+1+3=8/4=2
A group of nutritionists is hoping to show that a new soybean compound has more protein per gram than roast beef, which has a mean protein content of 20 grams. A random sample of 5 batches of a large supply of soy compound have been tested, producing protein contents of 15, 22, 17, 18, and 23 grams. Which of the following conditions have been met?
I. The data is a random sample from the population of interest.
II. The sample size is less than 10% of the population size.
III. The sample size is large.
a. I only.
b. I and II.
c. I, II and III.
d. II only.
e. III only.
Answer:
The data is a random sample from the population of interest and The sample size is less than 10% of the population size. ( b )
Step-by-step explanation:
roasted beef protein = 20 grams ( mean value )
sample size of soybean compound = 5
mean value of their protein = ( 15 + 22 + 17 + 18 + 23) / 5 = 19
The conditions that have been met are :
The data is a random sample from the population of interest. and
we can say the sample size is less than 10% of population size because we do know the population size is a large supply
If θ is an angle in standard position and its terminal side passes through the point (5,-12), find the exact value of sinθ in the simplest radical form. need answer, please
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Answer:
sin(θ) = -12/13
Step-by-step explanation:
The distance from the origin to the given point is ...
r = √(5² +(-12)²) = √169 = 13
For point (x, y) ⇔ (r; θ), recognize that (x, y) = (r·cos(θ), r·sin(θ)). This translates to ...
sin(θ) = y/r
sin(θ) = -12/13
Help and explain
I have been here for a month and going back to the video and not understand
Answer:
The surface area of the composite figure is 1108 square inches.
Step-by-step explanation:
The surface area of the composite figure ([tex]A_{T}[/tex]) is equal to the sum of external faces of the rectangular and triangular prisms, all measured in square inches:
[tex]A_{T} = 20\,in \times 12\,in + 2\times 5\,in \times 12\,in + 2\times 20\,in \times 5\,in + 2\times 20\,in \times 11\,in + 2\times \frac{1}{2}\times 12\,in \times 9\,in[/tex]
[tex]A_{T} = 1108\,in^{2}[/tex]
The surface area of the composite figure is 1108 square inches.
Which of the following fractions is nearest to 1/2
1) 3/5 2)12/25 3)27/50
You must show all your working.
Answer:
12/25
Step-by-step explanation:
1/2 = 25/50
1) 3/5 = 30/50
2) 12/25 = 24/50 (closest to 25/50)
3) 27/50
2 1/3 x 4 4/5as a fraction
Answer:
11 1/5
Step-by-step explanation:
2 1/3 × 4 4/5
=7/3 × 24/5
=56/5
=11 1/5
Pls help me solve this
Lin got a $50 gift card to an online music store. She uses the gift card to buy an album for $9.99. She also wants to use the gift card to buy some songs. Each song costs $1.29.
Which of these inequalities describes the situation, where n is the number of songs Lin wants to buy.
9.99+1.29n greater and equal to 50
9.99+1.29 less than and equal to 50
9.99-1.29n less than or equal to 50
9.99-1.29n greater than or equal to 50
Answer:
b) 9.99 + 1.29n ≤ 50
Step-by-step explanation:
I think, this question is incomplete., may be there is typo. To complete the question, it's suppose to be like this
a)9.99 + 1.29n ≥ 50
b)9.99 + 1.29n ≤ 50
c)9.99 − 1.29n ≤ 50
d)9.99 − 1.29 n ≥ 50
well, we have to figure out the information given
price of the album: $9.99
each song cost : $1.29
gift card: $50
number of songs : n
The answer is b) 9.99 + 1.29n ≤ 50 , because the sum of the price of the album ($9.99) and the songs ($1.29 n) must be less or equal to the value of the gift card ($50). Fore sure it 's correct.....
exponential function models the annual rate of increase. Find the monthly and quarterly rates
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Answer:
1. monthly: 0.25%; quarterly: 0.75%
2. monthly: ≈ 0.45833%; quarterly: 1.375%
Step-by-step explanation:
In each case, the base of the exponential term is the annual growth factor. The annual growth rate (interest rate) is ...
growth rate = growth factor - 1
Then the monthly rate is ...
monthly rate = growth rate/12
and the quarterly rate is ...
quarterly rate = growth rate/4
__
1. monthly rate = (1.03 -1)/12 = 0.03/12 = 0.0025 = 0.25%
quarterly rate = (1.03 -1)/4 = 0.03/4 = 0.0075 = 0.75%
__
2. monthly rate = (1.055 -1)/12 = 0.055/12 ≈ 0.0045833 = 0.45833%
quarterly rate = (1.055 -1)/4 = 0.055/4 = 0.01375 = 1.375%
ppppppppppppppppppppppppppppllllllllllllllllllllllllllllllllllllllllllllllllllllllllllzzzzzzzzzzzzzzzzzzz hheellpp
Answer:
12 because imagine 40 / 3 ok? now what makes 160 40 x 4 so you do that for the button 4 x 3 please put heart