Answer:
R = - 4
Step-by-step explanation:
5 r + 6r - 2 = - 46
11 r - 2 = - 46
11 r = - 46 + 2
11 r = - 44
r = - 4
PLEASE LOOK AT ATTACHMENT-25 POINTS
Answer:
Step-by-step explanation: 10/2 = 5
20^2= x^2 + 5^2
400=x^2+25
x^2=375
x= 19.4
Answer:
h = 19.36 cm
Step-by-step explanation:
using Pythagorean theorem
20^2-5^2 = h^2
h^2 = 375
h = 19.36 cm
Will give, Branliest.
Answer:
24
Step-by-step explanation:
x * 5 - 17 = 103
x * 5 = 120
x = 24
Answer:
s=24
103+17=120
120÷5=24
making the answer 24
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PLEASE HELP PLEASEEEEE
Answer:
Answer:
5.46π cm³
Step-by-step explanation:
Volume of sphere= 4/3πr³
= 4/3×π×(1.6)³ cm³
=5.46π cm³
hope this helped you!
NEED HELP ASAP
A car is purchased for 32,000. The value of the car depreciates by 3% per year.
A. Write an exponential function to model the value of the car after t years?
B. What is the value of the car 6 years after it is purchased?
Answer:
A) car one is linear because it decreases the same amount every year.
car two decreases by the same ratio so it's exponential.
B) for car one y = -6,000x + 38,000 (y is the value after x years, -6,000 is what it changes by every year, and 38,000 is the amount of year 0)
for car two y = (44,000) (17/20)x-1 (y is the value after x years, 44,000 is the amount on year 0, and 17/20 is the ratio)
C) after 5 years car one will be 8,000
after 5 years car two will be about 16,860
I need help with number 9
Answer:
D
Step-by-step explanation:
We can safely assume we are dealing with an arithmetic scale because the type of scale isn't mentioned anywhere. The more right a point is on the scale, the higher its value is. We are given two points of the scale: 3 and 4. Because the scale is arithmetic, we know that 3.8 must lie on 4/5s of the length between 3 and 4 to the right of 3, which is exactly where point D is.
PLEASE HELP MEEE !!!!
Answer:
Step-by-step explanation:
Lets find out first the Area of the rectangle building
A=50*100=5000 ft^2
we have 2 circles with the radius of 42 ft, r=21ft
Acircle=3.14*(21)^2=1384.74
Area of 2 circles=2*1384.74=2769.48
What is not covered by the rings is
5,000.00-2769.48=2230.52, rounded is 2231
Choice A
I’m struggling with this could you help me pls
Step-by-step explanation:
a) x=0, y=6
x=1, y=4
x=2 , y=2
x=3, y=0
x=4, y= -2
y= 6-2x
b) look at the attachment.
c)
6-2x=3
-2x=-3
x=3/2
Which graph represents the function f(x)=-3^x+1+2
Answer:
You did not provide an image for the graph, but the graph that would represent your function would look like this:
Answer:
it should be letter A
Step-by-step explanation:
help me out man i’ll give a crown to the smart one
Answer:
angle 4
its on the outside and it is alternate
Answer:
d
Step-by-step explanation:
A cash register contains only five dollar and fifty dollar bills. It contains five times as many five dollar bills as fifty dollar bills and the tital amount of money in the cash register is $2925. How many fifty dollar bills are in the cash register?
Out of the 100 cells shown how many are in the process of dividing?
she has 7 large dogs and 7 small dogs. please help
Answer:
21 small dogs, 42 total dogs
Step-by-step explanation:
7×3=21
7+7=14
14×3=42
If f(x) = x², then f(2 – 3i) equals
A. -5
B. -5 – 12i
C. 13 – 12i
D. 13
Answer:
A
Step-by-step explanation:
f(2 – 3i) = (2 – 3i)^2
f(2 – 3i) = (2)^2 + (-3i)^2
f(2 – 3i) = 4 + (9)(-1)
f(2 – 3i) = 4 - 9
f(2 – 3i) = -5
These are functions in another function. The result of the function f(2-3i) is -5-12i
Composite functionsThese are functions in another function. Given the function shown below;
f(x) = x²
In order to determine f(2 – 3i), you will replace as 2 - 3i to have:
f(2 - 3i) = (2 - 3i)²
Expand
f(2 - 3i) = 2² - 12i + 9i²
f(2 - 3i) =4 - 12i - 9
f(2 - 3i) = -5-12i
Hence the result of the function f(2-3i) is -5-12i
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The line models the cost of renting a bike. It costs $2 per hour plus a $4 deposit. Write an equation in slope-intercept form for the line where x is the number of hours a bike is rented and y is the total cost of renting a bike. How much does it cost to rent a bike for 3 hours?
Answer:
Step-by-step explanation:
2 votes
x - 2y = 8
3x = 19 + 4y
how to answer this through elimination or substitution method?
Answer:
The solution of the given equations
x = 3 and y =-2.5
Step-by-step explanation:
Step(i):-
x - 2y = 8 ..(i)
3x = 19 +4y ..(ii)
By using substitution method
substituting x = 2y +8 in equation (ii)
⇒ 3( 2y +8) = 19 +4y
⇒ 6y +24 = 19 +4y
⇒ 6 y - 4y = 19 - 24
⇒ 2 y = -5
[tex]y = \frac{-5}{2} = -2.5[/tex]
Step(ii):-
Substitute 'y' = -2.5 in equation (i) , we get
x - 2y = 8
⇒ x - 2( [tex]\frac{-5}{2}[/tex]) =8
⇒ x = 8 -5
x = 3
Final answer:-
The solution of the given equations
x = 3 and y =-2.5
If the area of a square with side x is equal to the area of a triangle with base x, then find the altitude of the triangle.
Answer:
[tex]h= 2x[/tex]
Step-by-step explanation:
Given
Square
[tex]Side = x[/tex]
Triangle
[tex]Base = x[/tex]
[tex]Altitude = h[/tex]
Required
Find h, if both shapes have the same area
The area of the square is:
[tex]Area = x * x[/tex]
[tex]Area = x^2[/tex]
The area of the triangle is:
[tex]Area = \frac{1}{2} * Base*Height[/tex]
[tex]Area = \frac{1}{2} * x*h[/tex]
Equate both areas
[tex]x^2 = \frac{1}{2} * x*h[/tex]
Divide both sides by x
[tex]x = \frac{1}{2} *h[/tex]
Multiply both sides by 2
[tex]2*x = \frac{1}{2} *h*2[/tex]
[tex]2x = h[/tex]
[tex]h= 2x[/tex]
Please help with this i will give brainliest
Answer:
15.5 meters of wood.
Step-by-step explanation:
Find the perimeter of the box.
2(1.50)+2(6.25)=15.5
Answer:
15.5 m of wood
Step-by-step explanation:
The perimeter of this 1.5 m by 6.25 m frame is a measure of the length of wood needed. Here P = 2(1.5 m) + 2(6.25 m) = 3 m + 12.5 m, or 15.5 m
if the simple interest on $5000 for 5 years is $1500 then what is the interest rate?
Answer:
6%
Step-by-step explanation:
Simple interest: A = P(1 + rt)
Solve for r: r = (1/t)((A/P) - 1)
Given:
A = $1500 + $5000 = $6500
P = $5000
t = 5 yrs
r = (1/5)((6500/5000) - 1)
= (1/5)(0.3)
= 0.06
0.06 = 6%
Please help. i not smart
Answer:
It is hard to see the numbers.
But I am pretty sure it is 6x+6.
Step-by-step explanation:
Hope this helps! :D
PLEASE HELP ANYONE.....
John needs 48 stamps to complete his stamp collection. He has 30 stamps so far. What equation could you use to solve the number of stamps John needs?
A. 48 + 30 = s
B.30 + s = 48
C.30 - s = 48
D.48-s = 20
Answer:
the awnser should have is. b
To investigate water quality, the Columbus Dispatch took water specimens at 16 Ohio State Park swimming areas in central Ohio. Those specimens were taken to laboratories and tested for E. Coli, which are bacteria that can cause serious gastrointestinal problems. For reference, if a 100 100 -milliliter specimen (about 3.3 3.3 ounces) of water contains more than 130 130 E. Coli bacteria, it is considered unsafe. Here are the E. Coli levels per 100 100 milliliter found by the laboratories:
Answer:
mean=56.28ml
The mean is greater than most of the observations because of the two outliers
Step-by-step explanation:
mean=56.28ml
The mean is greater than most of the observations because of the two outliers.
help me asap please!!!!
Isabella flew 720 miles in 120 minutes. How many miles per minute did
she fly?
Answer:
6 miles per minute.
Step-by-step explanation:
All you need to do is, divided 720 into 120, and you will get your answer. :)
Which is a reasonable domain for the function f(x)=10x+8
Answer:
(-∞,∞)
Step-by-step explanation:
The domain is all possible x values of the function
There are no constraints or holes for this and therefore the domain is all real numbers
A function is a relationship between inputs where each input is related to exactly one output.
x values can be ........-5,-4,-3,-2,-1, 0, 1, 2, 3, 4, 5, 6,.........
The reasonable domain for the function f(x) = 10x + 8 is (-∞, ∞).
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
f(x) = 10x + 8
We can have any real values of x.
f(-2) = -20 + 8 = -12
f(-1) = -10 + 8 = -2
f(1) = 10 + 8 = 18
f(2) = 20 + 8 = 28
f(3) = 30 + 8 = 28
.
.
.
x values can be ........-5,-4,-3,-2,-1, 0, 1, 2, 3, 4, 5, 6,.........
So,
The domain of the function f(x) = 10x + 8 is -∞ to ∞.
We can write as an interval as,
(-∞, ∞).
Thus,
The reasonable domain for the function f(x) = 10x + 8 is (-∞, ∞).
Learn more about functions here:
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Solve the system by substitution.
y = 10x
Y = -3x + 39
Answer:
x=3
Step-by-step explanation:
y=10x
y=-3x + 39
10x = -3x + 39
+3x (to both sides)
13x = 39
Divide by 13
x=3
Find the measure of the angle.
5. Find m2 1.
6. Find m26.
1 2
3 4
7. Find m25.
8. Find m2 3.
5 6
750°
PLEASE GIVE ALL FOUR ANSWERS!! WILL GIVE BRAINLIEST
Answer:
hope this is what u want
and u find it helpful
If j // l, m<1 = 135, m<2 = 55, and m<3 = 45, list all other parallel lines. Justify your answers. Show work if any.
Answer:
Step-by-step explanation:
The supplement to ∠1 = 180°-135° = 45° = ∠3, so m is parallel to j and l.
∠2 ≠ 45° and ∠2 ≠ 135°, so k is not parallel to j, l, or m.
Find the value of x.
Answer:
x = 3.5
Step-by-step explanation:
[tex]\frac{4}{7}[/tex] = [tex]\frac{2}{x}[/tex]
4x = 14
x = 3.5
pls i will give brainliest
solve the equation: 3x^3-x^2=x^2
Answer:
x = 0 , 2/3
Step-by-step explanation:
3x^3-x^2=x^2
3x^3-2x^2=0
x^2(3x-2)=0
Now split into two equations:
1)
x^2=0
x=0
2)
3x-2=0
3x=2
x=2/3
A poster has a rectangular printed area 100 cm by 140 cm and a blank strip of uniform width around the edges. The perimeter of the poster is 1 2 3 times the perimeter of the printed area. What is the width of the blank strip
Answer:
90 cm
Step-by-step explanation:
Given that :
Perimeter of a rectangle = 2(Length + Width)
Perimeter of print area = 2(100 + 140) = 480cm
Perimeter of entire poster :
Let uniform width of blank strip = x
x on each of the 4 sides side ;
2(2x + 100 + 2x + 140)
2(4x + 240)
8x + 480
Perimeter of poster = 1 2/3 perimeter of print area
8x + 480 = 5/2(480)
8x + 480 = 1200
8x = 1200 - 480
8x = 720
x =. 720 / 8
x = 90 cm