Answer:
Width=9.5, Length=32.5
Step-by-step explanation:
Let x be the width of the rectangle,
The length is 4 feet more than 3 times the width,
The length= 3x+4
The perimeter is
2(x)+2(3x+4)=84
2x+6x+8=84
8x=76
x=76/8
x=9.5
The Width=9.5
Length= 3(9.5)+4=32.5
If sinx=(-15)/17 with π≤x≤3π/2 and cosy=3/5 with 0≤y≤π/2, find the exact value of cos(x-y)
Answer:
sin(x)=(-15)/17cos(x)=(-8)/17cos(y)=3/5sin(y)=4/5[tex] →\cos(x - y) = \cos(x)\cos(y) + \sin(x) \sin(y) \\ =(\frac{ - 8}{17}\times \frac{3}{5}) +(\frac{ - 15}{17} \times \frac{4}{5}) \\ = \frac{ - 24}{85} + \frac{ - 60}{85} \\ = \frac{ (- 24) + ( - 60)}{85} \\ = \boxed{ \frac{ - 84}{85} }✓[/tex]
(-84)/85 is the right answer.Is this correct if not can someone help me ?
Answer:
you are correct
Step-by-step explanation:
Because c is more than 60
Any help truly appreciated.
Answer:
x= -2 y= 6
x= 0 y= 0
x= 2 y= 10
B. Orange
Step-by-step explanation:
2(-2×-2)+-2=6
2(0×0)+0=0
2(2×2)+2=10
This is for my little sister so halp .-_-.
Answer:
1x3=3
0.4x3=1.2
0.5x1=0.5
0.4x0.5=0.2
Step-by-step explanation:
_____________
3 ! 0.5
______________
1.2 ! 0.2
______________
Harold splits 1 7/8gallons of lemonade evenly among 5 cups. How many gallons of
lemonade does Harold pour into each cup?
Answer:
3/8 of a gallon
Step-by-step explanation:
1 7/8 divided by 5 = 3/8
8 - (-2) =
how do you rewright this as a addition problem
Answer:
8+2=10
Step-by-step explanation:
A negative minus a negative equals a positive. So 8-(-2) would go to 8+2
Answer:
8+2
Step-by-step explanation:
when you multiply a negative by another negative inside of the paranthesies it creates a positive
Samantha bought the fruit shown in the
table below
Plz help get the right answer
Answer:
7x^(2)+4x-11
Step-by-step explanation:
please help i will mark branliest
Answer:
b-14.99=40.01
Step-by-step explanation:
He used 14.99 dollars so you have to subtract that from the total.
Answer:
Hi! The correct answer is b-14.99=40.01 and b=$55
Step-by-step explatnation:
~Move all terms not containing b to the right side of the equation~
If the sales tax rate is 8.25% how much would pay for an item that costs $24.00?
Answer:
$25.98
Step-by-step explanation:
8.25% of 24 = 0.0825 × 24 = 1.98
1.98 + 24 = 25.98
f(x) = 3x2 + 4x – 6
g(x) = 6x3 – 5x2 – 2
Find (f + g)(x).
Answer:
B
Step-by-step explanation:
(f+g)(x) = f(x) + g(x) = [tex]3x^{2} +4x-6+6x^3-5x^{2} -2[/tex] = [tex]6x^{3}-2x^{2} +4x-8[/tex]
Does anyone know what this is?
Answer:
45°
Step-by-step explanation:
90÷2 = 45
Plz help 13 points
The image won't load for some reason
Answer:
she used 2,500 beef and she also had a lot of left over
Does the system shown always, sometimes, or never have a solution when a > b?
ax + y = 8
bx + y = 5
Answer:
always have a solution
Step-by-step explanation:
A linear equation in standard form is given by:
Ax + By = C, where A,B, C are real numbers and A,B is not equal to zero.
Two linear equations with equations Ax + By = C and Dx + Ey = F
Therefore the first equation becomes: (A/B)x + y = C/B and the second equation becomes (D/E)x + y = F/E ]
Both equations are said have a solution if A/B ≠ D/E, they have no solution if A/B = D/E and they have infinite solutions if A/B = D/E, C/B = F/E.
Given that:
when a > b
ax + y = 8
bx + y = 5
Since a ≠ b, but a > b, the system has a solution
Factor. (GCF)
24a + 12b - 30
6(4a + 2b - 5)
3(4a + 2b-5)
2(4a + 2b - 5)
All of the above.
Simplify the expression?
Answer:
D. (13 + 18t)
Step-by-step explanation:
(4-t)(2+5t) =
13 + 18t
Best answer is the last one.
Find the value of the following: 11!8!/12!6!
If your answer is not an integer, write it as an exact fraction.
Answer:
14/3
Step-by-step explanation:
[tex]\frac{11*10*9*8*7*6*5*4*3*2*8*7*6*5*4*3*2}{12*11*10*9*8*7*6*5*4*3*2*6*5*4*3*2}[/tex]
You have this huge fraction and basically what you do is you cancel out all the numbers that are on the top and the bottom so it would be:
[tex]\frac{7*8}{12}[/tex]
Now, you can just simplify this: 56/12 = 14/3
A theatre has 1200 seats. Each row has 20 seats. Write and solve an equation to find the number of rows in the theatre
need help a lot of points
If a rectangle FGHI is dialted by a scale factor of 0.5 and the origin as it's center, what would be the corrdiants of F'?
A.(4,4)
B.(1,1)
C.(10,10)
Answer:
A
Step-by-step explanation:
i got (4,4) so it may be A hope it help.
answer and i mark brainliest ok !!
Answer: Both
Step-by-step explanation:
WILL MARK AS BRAINLIEST FOR CORRECT ANSWER PLSSS
A bag contains only red marbles and blue marbles in the ratio of 3 red to 2 blue.
If there are 24 red marbles, how many blue marbles are there?
Answer:
16
Step-by-step explanation:
let the ratio be 3x and 2x
3x=24
x=8
then we have the value of x
2x
2×8
16
how do I do number 1
Answer:
move each point (vertex) 2 units to the left and 1 unit up
20 pts
Given this diagram, find the value of n and m.
Answer:
n is 23 and m is 45
Step-by-step explanation:
Find the unknown side length x. Write your answer in simplest radical form.
Answer:
The answer is 40. The answer to the question provided is letter b.
-
Step-by-step explanation:
☆Solve using the pythagorean theorem.
[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {x}^{2} + {30}^{2} = {50}^{2} \\ {x}^{2} + 900 = 2500 \\ \frac{ \: \: \: \: \: \: \: - 900 = - 900}{ {x}^{2} = \sqrt{1600} } \\ x = 40[/tex]
Mia's cat Boots just gave birth to a
litter of kittens. 1 of the kittens are
black and of the kittens are tabby.
What fraction of the kittens are
black or tabby? (Simplify your
answer and write it as a proper
fraction or a mixed number.)
I need to know how many kittens there are sorry
please help it would mean so much! Which of the following linear equations passes through points (-1, 5) and (1, -5)?
y = -5x
y = 5x + 10
y = -2x + 3
None of these choices are correct.
can anyone answer 5+2(5x-7)+x and show the work please
Answer:
11x-9
Step-by-step explanation:
5+2(5x-7)+x=5+10x-14+x
= 11x-9
Answer:
-9+11x
Step-by-step explanation:
5+2(5x-7)+x
multiply (5x-7) by 2
5+ 10x-14+x
add like terms
-9+11x
PLEASE ANYBODY HELP ME PLEASE I BEG OF YOU!!
Randall is saving money to buy a bicycle. He has 37.80 in his savings account and saves 20% of his paper route earnings each week. After 10 weeks, he has $87.80 in his savings account. How much does Randall earn each week from his paper route
in 10 weeks he saved: 87.8-37.8= $50
so each week he saves 50/10= $5
So every week he earns 5*100 / 20= $25
A movie theater sends out a coupon for 25% off the price of a ticket. Write an equation for the situation, where y is the price of the ticket with the coupon, and x is the original price of the ticket. Use pencil and paper. Draw a graph of the equation and explain why the line should only be in the first quadrant.
The equation is y =__
(Use integers or decimals for any numbers in the expression).
Answer:
Step-by-step explanation:
x-the original price
y- the discounted price
y= the original price - 25 % discounted from x = x- (.25*x) = x( 1-.25) = .75x
equation is y= .75x
The equation should only be in the first quadrant because the prices can only be positive numbers.
A lifegaurd recieved 15 hours of training 10 hours of first aid trainning and 10 cardioplumary resurection what is the ratio
Answer:
10/15 ten over 15 like a fraction you need to simplify that to 2/3 two over threep explanation:
