Answer:
y = 9
Step-by-step explanation:
y-y1 = m(x-x1)
m is the slope =y2-y1/x2-x1=9-9/-2-3=0
pick any number out of the given two for (x1, x2)
y-9 = 0*(x-3) so
y-9 = 0 add 9 to both sides
y = 9
The length of a rectangle is 4 yd less than three times the width, and the area of the rectangle is 55 ya? Find the dimensions of the rectangle. Length: Width :
Answer:
length = 11 yard
width = 5 yard
Step-by-step explanation:
Area of a rectangle = L W
where A = 55 yard
L = 3W - 4
find: Length
width
solution:
A = L W
55 = (3W - 4) W
55 = 3W² - 4W
3W² - 4W - 55 = 0
use quadratic equation to solve for W:
W = - (-4) ± √(-4)² - 4(3)-55
2(3)
W = 5, W = -11/3
substitute W=5 to equation L = 3W - 4 to solve for L
L = 3W - 4
L = 3(5) - 4
L = 15 - 4
L = 11
therefore, the dimensions of a rectangle:
length = 11 yard
width = 5 yard
Sally went to the clearance rack at a department store and found a shirt she wanted to buy. The shirt was $36.00 and is on sale for $24.00. What is the percent of the decrease?
Answer:
33.34%.
Step-by-step explanation:
Given that,
The actual price of the shirt = $36
Price on sale = $24
We need to find the percent of the decrease. The formula for the percentage is given by :
[tex]\%=\dfrac{|\text{actual value-estimated value}|}{\text{actual value}}\times 100[/tex]
Putting all the values,
[tex]\%=\dfrac{24-36}{36}\times 100\\\\=33.34\%[/tex]
So, the percentage decrease in the price of the shirt is 33.34%.
Please Help ASAP - 10 Points!
What is the value of f(g) at f(21)?
Answer:
46.2
Step-by-step explanation:
if you plug the value given for g into g in the equation, it should look like
2.2(21) which you multiply the two together. and you get 46.2.
hope this helps you...sorry just seen your question now.
Jared just started a Tennis School. He found an online store selling racquets for $30 each. Write the rule to represent how much Jared spent on a set of racquets for his school.
PLEASE HELP ME ASAP!!
which ordered pair is a solution to the equation y=3x-10
Answer:
(4,2)
As you plug the coordinates into an equation and it equals
(3x4)-2= 12-2 =10
Have a beautiful day! v(⌒o⌒)v♪
The times for Erin’s five laps around the track were 56.6 seconds, 57.9 seconds, 57.5 seconds, 65.3 seconds, and 65.7 seconds. Using rounding to the nearest whole second as the only estimation technique, what is the total estimated time for Erin’s five laps in seconds?
300
303
304
320
Answer:
the correct answer should be c, 304
Answer:
c or 304
Step-by-step explanation:
i took the quiz on edge
how would I go about Simplify 2⁵ ÷ 2³
Answer:
2^8
Step-by-step explanation:
Write an equation of a parabola with a vertex at the origin and the focus at (0,3). Please helpppp meeee???!!
Answer:
y= [tex]\frac{1}{12}[/tex] · x²
Step-by-step explanation:
[tex]\frac{1}{4 times P}[/tex] ·x²
p=3
[tex]\frac{1}{4times3}[/tex] ·x²
I’m looking for x can someone help me
Answer:
x = 30°
Step-by-step explanation:
Since m and n are perpendicular, then
y + 70° = 90° ( subtract 70° from both sides )
y = 20°
thus 40 + y = 40° + 20° = 60°
Then
x + 60° = 90° ( subtract 60° from both sides )
x = 30°
9. Consider f(x) = x³+x¹. Would the function be even, odd, neither, or not enough information to determine? A. even B. Odd C. Neither D. Not Enough Information
The function is odd, since
f(-x) = (-x)³ + (-x)
… = (-1)³ x³ - x
… = -x³ - x
… = -(x³ + x)
… = - f(x)
so the answer is B.
A rectangle is 12 feet long and 5 feet wide. If the length of the rectangle is increased by 25% and the width is decreased 20%, what is the change in the area of the rectangle?
Answer:
36 ft squared
Step-by-step explanation:
12*5=60 Original Size
12+25% of 12= 16
5+ 20% of 5= 6
6*16=96
The difference between the two:
96-60=36 ft squared difference
Whats 1+1 please help Idk What to do im gona fail. please Help IM timed
Answer:
11
Step-by-step explanation:
1+1=11
Answer:
2 because its simple
use the lists of common factors to answer the question
FACTORS OF 9: 1,3,9
FACTORS OF 15: 1,3,5,15
FACTORS OF 21: 1,3,7,21
FACTORS OF 40: 1,2,4,5,10,20,40
Which pairs of numbers are relatively prime? check all that apply.
9 and 15
9 and 40
9 and 21
15 and 21
21 and 40
Answer:
9 and 40
21 and 40
Step-by-step explanation:
I just did the test on edg. 2020
Factors of 9:
1,3,9
Factors of 15:
1,3,5,15
Factors of 21:
1,3,7,21
Factors of 40:
1,2,4,5,8,10,20,40
We have to find the pairs of numbers which are relatively prime.
Relatively prime number: The numbers in which gcd 1 are called relative prime numbers.
a.9 and 15
GCD(9,15)=3
9 and 15 are not relatively prime.
b.9 and 40
GCD(9,40)=1
Hence, 9 and 40 are relatively prime.
c.9 and 21
GCD(9,21)=3
9 and 21 are not relatively prime.
d.15 and 21
GCD(15,21)=3
15 and 21 are not relatively prime.
e.21 and 40
GCD(21,40)=1
21 and 40 are relatively prime.
Can someone one at least help me with Part A?
laptop has a listed price of $879.95 before tax. If the sales tax rate is 8.5%, find the total cost of the laptop with sales tax included Round your answer to the nearest cent, as necessary.
Answer:
It would be $954.75
Step-by-step explanation:
Simplify -8xy + 7xy
is the answer xy?
-8 + 7 = -1
so the answer would be:
-xy or -1xy
Answer:
-xy
Step-by-step explanation:
Add -8xy and 7xy= -xy
Hope this helped! :)
May i have brainliest!
A manufacturer wants to construct a box whose base length is 4 times the base width. The material to build the top and bottom cost 8 dollars per ft.2 and sides 5 dollars per ft.2. If the box must have a volume of 72 ft.3, determine the dimensions that will minimize cost.
Answer:
width = 1.77845 ft
length = 7.1138 ft
height = 5.691 ft
total cost = $759.09
Step-by-step explanation:
volume = length x width x height
length = 4 width
base of the rectangle = 4 x 1 w = 4w²
72 (volume) = 4w²h
18 = w²h
f(c) = (2 x 4w² x $10) + (2 x wh x $5) + (2 x 4wh x $5)
f(c) = 80w² + 10wh + 40wh
f(c) = 80w² + 50wh
since we need only 1 variable (width), we have to substitute h:
h = 18/w²
f(c) = 80w² + 50w(18/w²) = 80w² + 900/w
f'(c) = 160w + 900/w²
0 = (160w³ + 900)/w²
0 = 160w³ + 900
0 = 20(8w³ + 45)
0 = 8w³ + 45
8w³ = -45
w³ = -45/8
w = ∛-45/8 = -1.77845 and 1.77845
since w cannot be negative, then it must be 1.77845
Which statement is true about the sign of a quotient? Check all that apply.
A. The quotient of two negative fractions is negative.
B. The quotient of one negative fraction and one positive fraction is negative.
C. The quotient of two positive fractions is negative.
D. The quotient of two positive fractions is positive.
E. The rules for the signs of quotients are the same as the rules for the signs of products.
Answer:
Step-by-step explanation:
B, D, E
because you have a quotient when you divide and has the same rules as multiplication
Question on pictures ^^^^^^^^
Answer:
y=35 x=145
Step-by-step explanation:
y is equivalent to 35
180-35=145
Answer:
x = 145
y = 35
Step-by-step explanation:
x and the 35 degree angle are supplementary angles, so x + 35 = 180.
solve for x, x = 145. the 35-degree angle and angle Y are corresponding angles, so the value of y will be 35.
A passenger train has 12 cars with a total of 204 people on it. How many people per car?
Answer:
17
Step-by-step explanation:
204 / 12 = 17
please help me and pls do both
Answer:
7/36
Step-by-step explanation:
find the LCD write all the numerators above the least common denominator
LCD is 36
4 +3 /36 =7/36
94.89 x 3.11 ≈
What is the answer?
Answer:
295.1079
Step-by-step explanation:
Average score in the first 7 tests is 82. How much do you need to score to get an average of 85?
X+X+X+X+X+X+X/7=82
X+X+X+X+X+X+X+X/8=85
X+X+X+X+X+X+X=574
X+X+X+X+X+X+X+X=680
X=106
You need to score 106
Hope this helps :D
you have been saving money to buy a new pair of shoes. Three different stores are having sales on them. Which store has the best deal. Order from lowest price to the highest price.
Original Price $70
Take 10% off
Then take 10% off that price
Original Price $80
Take 15% off
Then take 10% off
Original Price $90
Take 10% off
Then take $25 of
Answer:
Store 1 has the best deal at $56.70. The order goes as shown below!
Step-by-step explanation:
Store 2 - $61.20
Store 3 - $60.75
Store 1 - $56.70
Hope this helped :)
Please help me!!
REALLY FAST PLEASE
Answer:
I would say that the percentage is 2 since
90=100\%(1)
x=95\%(2)
x=85.5
so the answer for this equation is 2% of percentage tax
and will save 85.5
What is the value of x in the equation 5(3x + 4) = 23?
start fraction 43 over 15 end fraction
start fraction three over 15 end fraction
start fraction 15 over 43 end fraction
start fraction two over five end fraction
Answer:
5(3x+4)=23
5*3=15 5*4=20
15x+20=23
-20=-20
15x=3
divide by 15 from both sides
x=0.2
Step-by-step explanation:
Answer:
5(3x+4)=23
5*3=15 5*4=20
15x+20=23
-20=-20
15x=3
divide by 15 from both sides
x=0.2
Explanation: In a fraction, the number of equal parts being described is the numerator (from Latin: numerātor, "counter" or "numberer"), and the type or variety of the parts is the denominator (from Latin: dēnōminātor, "thing that names or designates"). As an example, the fraction 8/5
amounts to eight parts, each of which is of the type named "fifth". In terms of division, the numerator corresponds to the dividend, and the denominator corresponds to the divisor.
Informally, the numerator and denominator may be distinguished by placement alone, but in formal contexts they are usually separated by a fraction bar. The fraction bar may be horizontal (as in 1/3), oblique (as in 2/5), or diagonal (as in 4⁄9). These marks are respectively known as the horizontal bar; the virgule, slash (US), or stroke (UK); and the fraction bar, solidus, or fraction slash. In typography, fractions stacked vertically are also known as "en" or "nut fractions", and diagonal ones as "em" or "mutton fractions", based on whether a fraction with a single-digit numerator and denominator occupies the proportion of a narrow en square, or a wider em square. In traditional typefounding, a piece of type bearing a complete fraction (e.g. 1/2) was known as a "case fraction", while those representing only part of fraction were called "piece fractions".
Please at least help me cause I have no idea
Solve for v2
[tex]a \: ave = \frac{v2 - v1}{t2 - t1} [/tex]
Answer:
Solving the given formula for v2 gives us:
[tex]a(t_2-t_1)+v_1 = v_2[/tex]
Step-by-step explanation:
Solving an equation for a particular variable means that the variable has to be isolated on one side of the equation.
Given equation is:
[tex]a = \frac{v_2-v_1}{t_2-t_1}[/tex]
Multiplying both sides by t2-t1
[tex](t_2-t_1) . a = \frac{v_2-v_1}{t_2-t_1} . (t_2-t_1)\\a(t_2-t_1) = v_2-v_1[/tex]
Adding v1 to both sides of the equation
[tex]a(t_2-t_1)+v_1 = v_2-v_1+v_1\\a(t_2-t_1)+v_1 = v_2[/tex]
Hence,
Solving the given formula for v2 gives us:
[tex]a(t_2-t_1)+v_1 = v_2[/tex]
Francis is 9 years older than Vincent. Francis is 17 years old. Let v represent how old Vincent is.
Which equation shows an equality between two different ways of expressing how old Francis is?
A. v + 9 = 17
B. v – 9 = 17
C. v x 9 = 17
D.
Answer: A
Step-by-step explanation:
Francis = v+9
17 = v +9 so A
Answer:
it would be a
18) If Holstein cows produce milk that is on average 3.66% butterfat and Jersey
cows produce milk that is on average 4.5% butterfat, how many gallons of Jersy milk
should be added to every 100 gal of Holstein milk to have milk that is 4% butterfat?
Guys please help me with this question I’m using all my points for this please just help me
Answer:
68 gallonsStep-by-step explanation:
Milk of Holstein cows ⇒ 3.66% butterfatMilk of Jersey cows ⇒ 4.5% butterfatIf we add x gal of 4.5% milk, then we have below equation:
100*0.0366 + x*0.045 = (100 + x)*0.043.66 + 0.045x = 0.04x + 40.045x - 0.04x = 4 - 3.660.005x = 0.34x = 0.34/0.005x = 68 gal