Answer:
8%
Step-by-step explanation:
$3.20/$40 = 0.08
0.08 = 8%
Sofia spent $157.25 to make facemasks. After selling 500 facemasks, her revenue was
estimated to be $364.43. Did Sofia make a profit or loss? How do you know? Explain.
Points will be given!!
Find the value of f(-6).
Answer:
f(-6) = 5
Step-by-step explanation:
We want to find the value of the graph when x = -6
Go to where x = -6 and the y value is 5
f(-6) = 5
PLS HELP ITS DUE TODAY!!
If you have 75 Dollars, then number of nickels, y
- y = 75 ÷ 20
- y = 20 x 75
- y = 20 ÷ 75
Answer:
y=20x75 is the answer
Step-by-step explanation:
You can basically eliminate other two choices since they are division
PLEASE HELP WILL GIVE BRAINLIEST IF CORRECT!!
find: x, y
Answer:
y=2
x=3
Step-by-step explanation:
I'm not sure, but considering that 3/2 = 1.5 I'm assuming that the rest is proportional as well. Therefore, making x=3 and y=2 (4/2=2 and 6/2=3)
Answer:
x = 3, y = 2
Step-by-step explanation:
the diagram shows two triangles that are similar (angle measures are equal and sides are proportional)
1.5 corresponds to 3; therefore, the ratio of sides is 1:2
'x' corresponds to 6 (x must be half of 6)
'y' corresponds to 4 (y must be half of4)
The lengths of the sides of a triangle are 3, 4, 5. Can the triangle be a right angle. Yes. No.
Answer:
Yes
Step-by-step explanation:
3 , 4 & 5 are Pythagorean Triplet numbers. When lengths of a triangle's 3 sides are Pythagorean Triplet , the triangle is a right angled triangle.
The triangle will be a right angled triangle only when the hypotenuse will have length of 5 and other 2 sides will have length of either 3 or 4.
Answer:
[tex]\boxed {\boxed {\sf Yes, \ the \ side \ lengths \ 3, \ 4, \ and \ 5\ can \ make \ a \ right \ triangle}}[/tex]
Step-by-step explanation:
If the triangle is a right triangle, then the sides will check out in the Pythagorean Theorem.
[tex]a^2+b^2=c^2[/tex]
Where a and b are the legs and c is the hypotenuse.
1. Define Sides
The legs are the 2 shorter sides and the hypotenuse is the longest.
The sides given are 3, 4 (shorter), and 5 (longest). Therefore:
[tex]a=3 \\b=4 \\c=5[/tex]
2. Check the Sides in the Theorem
Substitute the values into the theorem.
[tex](3)^2+(4)^2=(5)^2[/tex]
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Addition, and Subtraction.
Solve all of the exponents first.
(3)² = 3*3= 9 (4)²= 4*4= 16[tex]9+16=(5)^2[/tex]
(5)²= 5*5= 25[tex]9+16=25[/tex]
Add the numbers on the left side of the equation.
[tex]25=25[/tex]
This is true. 25 is equal to 25, so this triangle can be a right triangle.
Ava solved the compound inequality+7<-1 or 2x-129 for all possible values of x. Which graph represents
the solution set?
30 -24 -18
06 12
30 -24 -18 -2 -6 0 6 12
36 -30 -24 -18 -12 -6 06 12
-36 -30 -24 -18 -12 -6 0 6 12
Answer:
D
Step-by-step explanation:
To get the graph, we will need to solve each inequality differently
For the first one, we have that
x/4 < -1-7
x/4 < -8
x < -8 * 4
x < -32
For the second side;
2x-1 ≥ 9
2x ≥ 10
x ≥ 5
So we have two arrows facing different directions
On the left should be unshaded while the right hand side should be shaded
So, the correct answer here is the 4th option
Simplify the expression.
7y+6−1+12y =
Answer:
19+5
Step-by-step explanation:
7y+6-1+12y
Add common variables
19y+5
Can't be simplified any further without an answer to the equation
Hope this helps. Have a great day. May it be filled with joy and happiness
Answer:
24 x y2
Step-by-step explanation:
7+6=13
13-1=12
12+12=24
There is 2 Y's so you do y to the power of 2.
The graph of an exponential function is given. Which of the following is the correct equation of the function?
y = [tex]2.4^x[/tex]
y = [tex]0.31^x[/tex]
y = [tex]0.45^x[/tex]
y = [tex]1.8^x[/tex]
Answer:
[tex]y = 2.4^x \\ from \: intercepts \: using \: natural \: log( ln)[/tex]
Answer:
2.4
Step-by-step explanation:
How we can differentiate between direct proportion and inverse proportion?
Answer:
Please check explanations for answer
Step-by-step explanation:
Here, we want to differentiate between inverse and direct proportion
Let x and y be two quantities
If they are directly proportional;
x/y = k
x = ky
where k is proportionality constant
If inversely;
xy = k
In verbal terms;
For direct proportionality, when one value increase, the other too does so and vice versa
For inverse, when one value inverse, the other decrease
Geoffrey used 7 out of his 20 tokens on one game at the arcade. What is this fraction written as a decimal?
Answer:
0.35
Step-by-step explanation:
[tex]\frac{7}{20}[/tex]
20 ) 7 ( 0.35
0
70
60
100
100
0
Answer:
7\20 as a decimal is
0.35
Cassandra has a loan of $35,720. This loan has a simple interest rate of 4% per year.
What is the amount of interest Cassandra will pay on this loan at the end of two years?
$2,857.60
$38,577.60
$1,428.80
$5,715.20
formula of pythagorean identity
Answer:
\sin ^{2} \theta+\cos ^{2} \theta=1
Step-by-step explanation:
Simplify to create an equivalent expression.
2 – 4(5p + 1)
Answer:
A. -20p - 2
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
2 - 4(5p + 1)
Step 2: Simplify
Distribute -4: 2 - 20p - 4Combine like terms: -20p - 2Answer:
Step-by-step explanation:
Apply the distributive property
2-20p-4
Simplify expression
-20p-2
Answer choice A is correct
Choose all the factors of 12. (Check all that apply.)
1
5
8
7
6
3
12
11
4
2
10
9
plz help me
Answer:
1,2,3,4,6,12
Step-by-step explanation:
12•1= 12
2•6= 12
3•4= 12
What does 2x + 3x + 4x simlify to?
Answer:
9x does
Step-by-step explanation:
hope it helps
remind me if its wrong
At the store Brand P potato chips were $19.00 for 5 bags. Brand Q potato chips were $13.17 for 3 bags. Which brand has the cheaper price?
Answer:
Brand P has the cheaper price
Step-by-step explanation:
Brand P: $19.00 / 5 bags = $3.80 per bag
Brand Q: $13.17 / 3 bags = $4.39 per bag
In this multiplication problem every O stands for some odd digit and every E stands for some even digit. What is the product of the multiplication equal to?
Using multiplication rules, it is found that the product of the multiplication if an even digit.
What is the multiplication rule?The rule is that a multiplication involving an even number will always result in an even number.
In this problem,two even numbers are multiplied, as they both finish with even digits, hence the result is also an even number, as evidenced by the fact that it finishes with an even digit.
You can learn more about multiplication rules of odd and even numbers at https://brainly.com/question/24657250
Hello! Could you please help with these? It was due quite a long time ago. I have a D in this class and need to get my grades up.
Answer:
16. [tex]y=7x[/tex]
17. [tex]y=0.5x[/tex]
18. [tex]y=3x[/tex]
19. [tex]y=2x[/tex]
Step-by-step explanation:
Equation is [tex]y=kx[/tex] where k is a constant of proportionality.
16.
[tex]\frac{y}{x}=\frac{10.5}{1.5}=\frac{14}{2}=\frac{24.5}{3.5}=\frac{35}{5}=7[/tex]
So, equation is [tex]y=7x[/tex]
17.
[tex]\frac{y}{x}=\frac{1}{2}=\frac{2}{4}=\frac{2.5}{5}=\frac{3.5}{7}=\frac{1}{2}=0.5[/tex]
Equation is [tex]y=0.5x[/tex]
18.
[tex]\frac{y}{x}=\frac{6}{2}=\frac{9}{3}=\frac{15}{5}=\frac{18}{6}=3[/tex]
Equation is [tex]y=3x[/tex]
19.
[tex]\frac{y}{x}=\frac{4}{2}=\frac{8}{4}=\frac{14}{7}=\frac{18}{9}=2[/tex]
Equation is [tex]y=2x[/tex]
MATH PLEASE HELP!
A square field has an area of 479² ft What is the approximate length of a side of the field? Give your answer to the nearest foot. Explain your response.
Answer:
≈ 22 ft
Step-by-step explanation:
The area (A) of a square is calculated as
A = s² ( where s is the side length )
Given A = 479, then
s² = 479 ( take the square root of both sides )
s = [tex]\sqrt{479}[/tex] ≈ 22 ft ( to the nearest foot )
Answer:
A = 479 sq ft
479 = x²
square root of 479 = square root of x²
21.89 = x
rounded= 22 ft
Find the coordinates of the points of intersection of the parabola y=x^2+3x-4 and the line y=2x+2
tan2A - sin2A =sin2Atan2A
Step-by-step explanation:
[tex]\tan^2\alpha-\sin^2\alpha=\sin^2\alpha\tan^2\alpha\\\\LS=\left(\dfrac{\sin\alpha}{\cos\alpha}\right)^2-\sin^2\alpha=\dfrac{\sin^2\alpha}{\cos^2\alpha}-\dfrac{\sin^2\alpha\cos^2\alpha}{\cos^2\alpha}\\\\=\dfrac{\sin^2\alpha-\sin^2\alpha\cos^2\alpha}{\cos^2\alpha}=\dfrac{\sin^2\alpha(1-\cos^2\alpha)}{\cos^2\alpha}=\dfrac{\sin^2\alpha\sin^2\alpha}{\cos^2\alpha}\\\\=\sin^2\alpha\cdot\dfrac{\sin^2\alpha}{\cos^2\alpha}=\sin^2\alpha\left(\dfrac{\sin\alpha}{\cos\alpha}\right)^2=\sin^2\alpha\tan^2\alpha=RS[/tex]
Used:
[tex]\tan x=\dfrac{\sin x}{\cos x}\\\\\left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\\sin^2\alpha+\cos^2\alpha=1\to \sin^2\alpha=1-\cos^2\alpha\\\\\text{distributive property}\ a(b+c)=ab+ac[/tex]
Plz answer quickly will mark brainless
Answer:
She must read more than 5 hours
Step-by-step explanation:
equation 12h+10>70
12h>60
h>5
So she must read more than 5 hours
(can I get brainliest now)
Answer:
She must read more than 5 more hoursD.12h+10=512x5=60+10=70 pages.
She reads 12 pages per hour, so if she read for 5 hours, she would have read 60 pages. She has already read 10 pages, so that would equal 70 Pages.
I need help thank you
Answer:
C. none of the above
Step-by-step explanation:
-6 + 4q -6q
-2q - 6
Answer
C.
Step-by-step explanation:
sorry im late again
Evaluate 18y when y
= 2/3
Answer:
12
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
18y
y = 2/3
Step 2: Evaluate
Substitute in y: 18(2/3)Multiply: 12Answer:
The answer (rounded) is 12.
Step-by-step explanation:
2/3=0.66666666666
18x0.666666666=11.999998 or 12
I know its a little confusing with the decimals but I can't solve problems with fractions, I have to convert them to decimals. XD
Evan is making fruit punch. He adds 3 scoops of fruit punch mix to a pitcher containing 5 cups of water. Evan wants to use a larger pitcher, and he does not want to change the flavor of his fruit punch.
How many scoops of fruit punch mix should Evan add to 15 cups of water?
solve for x parallel lines
please answer this....................................
Answer:
Step-by-step explanation:
YET it was a rahi that had a chart of a rahi in her own words that 66inches the heights in cm and the same were all her friends hy 6AM 66inches ir and a great amount
Guys plz help me I need the answer fast.
Answer:
can you put the problem and the answer choices in the ch.at or something so i can answer, or just the problem
Step-by-step explanation:
HELP
If you don’t know it then please don’t answer.
the answer is 4.8. Your welcome
What is the solution to the system below?
3x + y = 11
y = x + 3
Answer:
x = 2
y = 5
Step-by-step explanation:
3x + y = 11 equation (1)
-x + y = 3 multiply this equation by -1
x - y = -3 equation (2)
by adding 2 equations
4x = 8
x = 2
by sub. in Equation (2)
2 - y = -3
y = 2+3
y = 5