Answer: Percent change = 20%
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Work Shown:
A = old value = 25 (last week's number)
B = new value = 30 (current week's number)
C = percent change
C = [ (B-A)/A ] * 100%
C = [ (30-25)/25 ] * 100%
C = [ 5/25 ] * 100%
C = 0.20* 100%
C = 20%
The percent change is 20%
The positive value of C indicates we have a percent increase.
factor 8a^3-64b^6 PLEASE HELP ASAP
Answer:
The answer is 8(a³ - 8b⁶)
Step-by-step explanation:
You have take out the common terms :
8a³ - 64b⁶
= 8(a³ - 8b⁶)
P.S.
a and b cannot be factorized because they are different terms.
4(x + 2) - 1/2x = 22 solve the equation
Answer:
x=4
Step-by-step explanation:
Answer:
[tex]x_{1} = \frac{7 - \sqrt{51} }{4} , x_{2} = \frac{7 + \sqrt{51} }{4} [/tex]
Step-by-step explanation:
attachment.
What type of triangle is formed with sides of length 11, 13, and 15?
Answer:
scalene triangle
Step-by-step explanation:
share 747 in the ratio 2:7
Answer:
Step-by-step explanation:
166:581
Hi Please can someone help me please ?????????
Answer:
z = 106
y = 20
Step-by-step explanation:
ILL MARK U BRAINLIEST HELP!!!
Answer: x= 14
Step-by-step explanation: look at transversal ED. Angle E and angle D are alternate interior angles of this transversal. Alternate interior angles are equal. Now we need to find angle measure of D to solve. The triangle angle sum theorem states that all interior angles of a triangle sum to 180 degrees. 50+ 48 + D =180.
Measure of angle D is 82. Now that we have the two alternate interior angles, we set them equal to each other to solve.
6x-2= 82. Add 2 to both sides. 6x = 84. Divide both sides by 6. X =14
Find the midpoint of the following
two coordinates
Please help!!
What is the value of -12/a if a = -4?
A: -3
B: -1
C: 3
D: 4
Anyone help please?
:(
Answer:
C
Step-by-step explanation:
-12
---- if a = -4
a
-12
-----
-4
= 3
The expression (x^13)(x^6) is equivalent to x^p. What is the value of p?
Answer:
p=19
Step-by-step explanation:
since the instructions say that ([tex]x^{13}[/tex])([tex]x^{6}[/tex]) is equivalent to [tex]x^{p}[/tex], we can make the equation:
([tex]x^{13}[/tex])([tex]x^{6}[/tex])=[tex]x^{p}[/tex]
now, apply the laws of exponents; [tex]a^{m} * a^{n} =a^{m+n}[/tex]
in that case, since we're multiplying x to the 13th power by x to the 6th, the result is [tex]x^{13+6}[/tex], which is [tex]x^{19}[/tex]
the equation now:
[tex]x^{19}[/tex]=[tex]x^{p}[/tex]
since the exponents are at the same base, we can solve the equation
19=p
so p is 19
hope this helps :)
y = -x +7
Find the slope any y intercept
Answer:
slope is -1, and y intercept is (0,7)
Step-by-step explanation:
The sum of exponents of the variables contained in the term Is ____
please help
Answer:
the degree
Step-by-step explanation:
????????????????????????
Answer:
um a
Step-by-step explanation:
I'm pretty sure (98%) it is A.
Let me know if I'm wrong.
(4 - 1+ 3/3) 15
What is the first operation you should do?
3 points
O (348/8)15
0 (4-1 4 1945
0 (4-14 8/40)
(4 - 1 + 818) x 5
Solve this expression
Please help what’s the answer??
Answer:
Its correct answer is sin65°/125.
Please explain and show work
Answer:
a. 1
b. any number to the zero power is just the product of no numbers at all, which is the multiplicative identity, 1
Step-by-step explanation:
Answer and explanation:
a) This value is equal to one because it is just the number divided by itself.
b) Since any number divided by itself is equal to 1, 6^3/6^3 also has to equal to one. This also means that when we bring the 6^3 up to the numerator, the equation 6^3-3, which simplifies into 6^0 also has to equal 1, because it is equivalent to being divided by itself.
Hope this helps!!
I just need help starting it off !
A sporting goods store is selling all their exercise equipment for 30% off.
The regular price for an exercise bicycle is $260. The regular price for a set of hand weights is $120.
Part A
Find 70,5,50,10? of the cost of the exercise bicycle. Multiply that amount by 30,260,3,10? to find 30% of the cost. Then x,/,-,+ the regular price to find the sale price.
Use your answers from Part A to find the sale price for the exercise bicycle. Enter your answer in the box.
___________
What is the sale price of the hand weights?
A.114
B.36
C.84
D. 380
Answer:
c. 84
Step-by-step explanation:
120 times .70 = 84
Solve for unknown quantity.
1 = 4
- -
K 20
Answers :
A. 4
B. 5
C. 6
D. 17
Pls help me
Answer:
dive by 5 take 20 if 4×5 give u 20 the 20/4 will give you 5
The difference between half of a certain number and seven is the same as with adding two to that number...Find the number
Answer:
x = - 18
Step-by-step explanation:
Let certain number = x
The difference between half of a certain number and seven
x/2 - 7
is the same as
=
with adding two to that number
x + 2
Find the number
x/2 - 7 = x + 2
x - x/2 = - 7 - 2
( 2x - x ) / 2 = -9
2x - x = -18
x = - 18
What is the relationship between sin x and cos y?
Answer:
It's graph is symmetric to the origin. Cos (x) on the other hand is an even function cos (-x) = cos (x), and its graph is symmetric to the y-axis. Notice also that the graphs are exactly the same shape but horizontally shifted /2 units. They are related by: sin (x) = cos (x - /2) and cos (x) = sin (x + /2).
Step-by-step explanation:
Jack chooses two numbers between 50 and 150
The two numbers have a Lowest Common Multiple (LCM) of 420
They have a Highest Common Factor (HCF) of 28
Work out what the two numbers are.
Answer:
84 and 140
Step-by-step explanation:
Jack chooses two numbers between 50 and 150
The two numbers have a Lowest Common Multiple (LCM) of 420
Factors of 420 between 50 to 150
= 60, 70, 84, 105, 140
We are also told that:
They have a Highest Common Factor (HCF) of 28
Hence, we find out of the factors above, which numbers can be divided by 28 without having any remainder.
60/28 = 2.1428571429
70/28 = 2.5
84/28 = 3
105/28 = 3.75
140/28 = 5
Therefore, the two numbers are
84 and 140
Find the solution to the system of equations.
Can someone please help me plz
Answer:
a) 25%
b) 29 - 7 = 22
c) 21
d) 26 - 15 = 11
e) 75%
Step-by-step explanation:
Can someone pls help meee
11.1 x 0.8 x 1.16 x 0.4
Cassidy the Clown does face painting at the city carnival. She paints 8 faces every 21 minutes. Write an equation that related the number of faces she paints (y) and the time she spends painting (x)
ANSWER WITH A PICTURE ASAP
Answer:
8y=21x
Step-by-step explanation:
i'm not sure how to draw this out in a picture but the equation is above.
like the question states, Cassidy paints 8 faces in every 21 minutes. the amount of time she spends painting one face would be figured out by dividing 21 by 8 giving you 2.625minutes so i would just say around 3 minutes. so to draw a picture maybe just draw 8 faces and then circle them and say 21 minutes and then put x (to show the time she spent painting each face) under the faces in the picture and then show your work solving this.
in order to find out the ratio of time spent drawing one person's face we have to take the information given and divide the total of 21 minute span by the 8 different faces she painted in order to find how long she spends on 1 face.
hope this helps, if it did please make sure to leave a like, rate, and give me the brainliest if possible!
thanks have a great day!
GUYS I NEED HELP PLEASE 20 POINTS ASAP
Answer:
58.28 Sq in
Step-by-step explanation:
Area of the composite figure
=Area of trapezoid + Area of semicircle
[tex] = \frac{1}{2} (15 + 11) \times 4 +\frac{1}{2} \times 3.14\times 2^2 \\ \\ = 26 \times 2+6.28 \\ \\ = 52+6.28=58.28 \: {in}^{2} [/tex]
Find the length of the third side of a triangle that has a hypotenuse of 15m and a leg of 12m
Answer:
9m
Step-by-step explanation:
A $100 pair of headphones is marked down by 10% and you also have a 20% off coupon. What is the final price, before tax?
Answer:
$72
Step-by-step explanation:
100 - 10% = 90
90 - 20% = 72
Write the equation of the line in slope-intercept form
with a slope of – 2/3and passes through the point
(6,-4).
Answer: Y = 7/8x+ 2.25
Step-by-step explanation:
you would subtract both y 7 subtract both x -8 y=7/8x+b 3= 7/8 x-2 +b 3 = 1.75 + b -1.75 -1.752.25 = b