Algebra
f(4.5)=8.5
Plug in x as 4.5 and multiply it with 3. Then subtract 5 from the remaining result.
Answer:
f(4.5) = 8.5
Step-by-step explanation:
f(4.5) = 3x - 5
f(4.5) = 3(4.5) - 5
f(4.5) = 13.5 - 5
f(4.5) = 8.5
Hope that helped! You have to substitute x with 4.5 and then solve.
Part A
Select all true statements about rectangles.
A rectangle always has:
0
A
4 sides
В.
4 angles
C. all sides equal in length
D. all right angles
E opposites sides parallel
Part B
Answer:
A rectangle always has... 4 sides, 4 angles, all right angles, and opposite sides parallel
Answer:
A, B, D, E
Step-by-step explanation:
A 4 sides
В. 4 angles
D. all right angles
E opposites sides parallel
-12x2x-1
pls tell noob nerds sssssssssssssssssssssssssssss
[tex]\sf\purple{24}[/tex] ✅
Step-by-step explanation:-
[tex] - 12 \times 2 \times - 1 \\ = 24[/tex]
Note:-
[tex]( - \times - ) = + [/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]
Determine the Sum of the first 20 terms in the sequence: 3 + 7 + 11 + 15 ....
Answer:
820
Step-by-step explanation:
A normal distribution has a mean of 15 and a standard deviation of 2. Find the value that corresponds to the 75th percentile. Round two decimal places
Answer:
16.35
Step-by-step explanation:
Using an inverse normal distribution, we can calculate the z score given the percentile, which can then be used to find our value.
First, we can use an inverse normal distribution calculator to figure out that the z score given the 75th percentile is 0.674.
Next, we know that the z score is (observed value - mean) / standard deviation. We can plug our values in to get
[tex]\frac{x-15}{2} = z\\\frac{x-15}{2} = 0.674\\x-15 = 0.674 * 2\\x = 0.674 * 2 + 15\\x= 16.348[/tex]
Rounding, we get x = 16.35 as our answer
PLEASE HELP WHAT IS THIS PKLEASE :
x/12 = -2
Answer:
x= -24
Step-by-step explanation:
multiply both sides by 12, then you'll have x= -24
If a = -9 and b= -4, what is the value of a + b? -5, 5, -13, 13.
Answer:
-13
Step-by-step explanation:
simply add
Answer:
Step-by-step explanation:
a+b
-9+(-4)
-9-4
-13
Find the value of x. Round to the nearest tenth.
Answer:
10.
Step-by-step explanation:
According to Pythagoras,
14^2 = 10^2 + x^2
196 = 100 + x^2
x^2 = 196-100
x^2 = 96
x = 9.8
x = 10 (nearest tenth)
Hope, this will help and please mark me as brainliest.
The cost of a Kit-Kat is $0.04 more than the cost of a Snickers. If you buy 4 Kit-Kats and 8 Snickers, the total cost is $12.76. How much does the Snickers cost?
Answer:
Step-by-step explanation:
go to the back of the book
Daniella has $1,425 in her bank account and a car worth $3,200. She still owes $1,350 on the car and
$825 on her student loans. She has 6 months left on her apartment lease, which charges $140 per month
in rent. What is her net worth?
Answer:
$1,610 is Daniella's Net Worth
Step-by-step explanation:
1,425 + 3,200 – 1,350 – 825 – 6×140 = 1,610
can someone pls pls help me ?
Answer:
a = 9
Step-by-step explanation:
this shape is an isosceles trapezoid where the pair of non-parallel sides are equal; therefore we can set up this equation to find 'a'
P = a + a + 2 + 8
28 = 2a + 10
18 = 2a
a = 9
Check:
9(2) + 2 + 8 = 28
18 + 10 = 28
28 = 28
help finding the area
Answer:
[tex]112m^{2}[/tex]
Step-by-step explanation:
formula L * H =A
8*14=112
please somebody else help me to do . I will mark the correct answer as a brainiest
there is your answer follow and mark me as brainliest
BONUS QUESTION ISTG I PROMISE LAST ONE I NEED HELP WITH
=========================================================
Explanation:
The volume of any block is V = L*W*H where L,W,H represents length, width and height respectively. The order of multiplication doesn't matter.
The volume of the block on top is 16*4*4 = 256 cubic feet. The "16" is from the fact we subtract the 20 ft and 4 ft.
The volume of the block underneath is 10*4*4 = 160 cubic feet
Add the two volumes to get the final answer: 256+160 = 416 cubic feet.
We can abbreviate "cubic feet" into "ft^3" without quotes.
using quadratic equation...help me
Answer:
HELLO I am tried to solve your question and I found 2 answer
Step-by-step explanation:
firstly we need discriminant to find x values.
you know we use b²-4ac formule to find discriminant
and this value (-3)²-[4*√2*(-2√2)]=-7 this means X hasn't reel value. let's continue.. if we want to find x value we use disc. and [-b±√∆]/2a one x value is [3+√7i]/2√2. and other is [3-√7i]/2√2
Answer:
x=0.94280
Step-by-step explanation:
see the photos it will explain how I got the answer
Given that a : b= 8:5 and 6: c= 3: 4,
find the ratio a : 6:c
Give your answer in its simplest form.
(3 marks)
Find SR
A) 4
B) 5
C) 7
D) 9
9514 1404 393
Answer:
C) 7
Step-by-step explanation:
We have ...
TS +SR = 19
SR +RQ = 13
Adding these two equations together, we have ...
TS +2·SR +RQ = 19 +13 = 32
We also have ...
TS +SR +RQ = 25
Subtracting this from the equation above, we have ...
(TS +2·SR +RQ) -(TS +SR +RQ) = 32 -25
SR = 7
The area of a rectangular fountain is (x^2+ 13x + 22) ft. The width is (x + 2) ft.
a. Find the length of the fountain.
Drink sales for an afternoon at the school carnival were recorded in the table below.
What is the experimental probability that the next drink is a small coffee? Enter your
answer as a simplified fraction.
Given:
The table that represents the drink sales for an afternoon at the school carnival.
To find:
The experimental probability that the next drink is a small coffee.
Solution:
From the given table it is clear that,
The total number of drinks sold = 72+99+63+68+47+58
= 407
The number of small coffee sold = 63
Now, the experimental probability that the next drink is a small coffee is:
[tex]\text{Probability}=\dfrac{\text{Number of small coffee sold}}{\text{Total number of drinks sold}}[/tex]
[tex]\text{Probability}=\dfrac{63}{407}[/tex]
It cannot be simplified further.
Therefore, the experimental probability that the next drink is a small coffee is [tex]\dfrac{63}{407}[/tex].
a man in a boat rowing from lighthouse whose height is 200m it takes 2 minutes to change the angle of elevation of 60 degree to 45 degree find speed of boat
Answer:
Step-by-step explanation:
I attached a picture below of what this situation looks like. As you can see, it is a right triangle problem. In order to solve for the speed of the boat, we first need to find out the difference between his distances when the angle is 60 and when it is 45. That's the same thing as finding x and y then subtracting. To find x:
[tex]sin60=\frac{200}x}[/tex] so
x = 231 meters (I rounded to the nearest whole numbers in this problem.
To find y:
[tex]sin45=\frac{200}{231+y}[/tex] so
[tex]y=\frac{200}{sin45}-231[/tex] and
y = 52.
The distance between the angles 60 and 45 as 52 meters, and it took him 2 minutes to travel that 52 meters. Assuming that his rate doesn't change, he can travel 52/2 meters per minute, or 26 meters per minute.
What is the slope of the line on the graph?
Which is equivalent to a+(-a)
Answer:
Step-by-step explanation:
a+(-a)
=a-a
=0
90°
30
x help me with this work
Answer:
90°
Step-by-step explanation:
[tex]x + 90 \degree = 180 \degree \\ (linear \: pair \: \angle s) \\ \therefore \: x = 180 \degree - 90 \degree \\ x = 90 \degree [/tex]
Please answer these 2 questions for me!!
Answer: number 1: 7/14
number 2: 16/24
Step-by-step explanation:
Ricardo has 32 books to put on for shelves you put the same number of books on each shelf how many books does Ricardo put on a Shelf
Answer: Ricardo put 8 books on each shelf.
Step-by-step explanation:
Given: Number of books = 32
Number of shelves = 4
We use division operation to divide an amount into different sections equally.
By division operation,
The number of books put on each shelf = (32) ÷ 4
i.e. The number of books put on each shelf = 8
Therefore, Ricardo puts 8 books on each shelf.
During the kickoff at a local high school football game, a football is placed onto a tee to a height of 0.125 feet above the ground. The football is kicked with an initial velocity of 80 feet per second. If the ball is caught at a height of 5 ft, approximately how long did it remain in the air? Round to the nearest hundredth of a second. Answer the question and make an equation
Answer:
Time in air is 7.5 s.
Step-by-step explanation:
initial height, h = 0.125 feet
initial velocity, u = 80 ft/s
final height, h' = 5 ft
acceleration due to gravity, g = 32 ft/s^2
Let the time is t to reach the maximum height.
v = u - gt
0 = 80 - 32 t
t = 2.5 s
Let the time is t' from top to ground.
[tex]s = u t + 0.5 gt^2\\\\5 = 80 t - 16 t^2\\\\16 t^2 - 80 t + 5 = 0 \\\\t = \frac{80\pm\sqrt{6400 - 320}}{32}\\\\t = \frac{80\pm78}{32}\\\\t = 5 s or 0.0625 s[/tex]
So the tie is 5 s
The time in air is
T = 2.5 + 5 = 7.5 s
when
[tex] {x}^{3} + a {x}^{2} + 5x + 3[/tex]
is divided by
[tex]x + 2[/tex]
the remainder is b. Determine the value of b
x³ + ax² + 5x + 3. x + 2 = 0
x = -2
(-2)³ + a(-2)² + 5(-2) + 3 = 0
-8 + 4a - 10 + 3 = 0
4a - 15 = 0
4a = 15
a = 15/4
Solve please 4 terms??
Answer:
a1 = 4
a2 = 40
a3 = 400
a4 = 4000
Step-by-step explanation:
First substitute n with 1.
1. 4 ⋅ 10^1 - 1
4 ⋅ 10^0
4 ⋅ 1 = 4
Second substitute n with 2.
2. 4 ⋅ 10^2 - 1
4 ⋅ 10^1
4 ⋅ 10 = 40
Next substitute n with 3.
3. 4 ⋅ 10^3 - 1
4 ⋅ 10^2
4 ⋅ 100 = 400
Finally, substitute n with 4.
4. 4 ⋅ 10^4 - 1
4 ⋅ 10^3
4 ⋅ 1000 = 4000
It's simple. Just plug in 1, 2, 3, and 4 into n and solve the equation.
a 24-ounces box of cornflakes cost 3.12 what is the unit rate
Answer:
.13 dollars/ ounce
Step-by-step explanation:
Take the prices and divide by the number of ounces
3.12 dollars/ 24 ounces
.13 dollars/ ounce
Answer:
3.12 divided by 24 will tell you how much it cost per ounce
Step-by-step explanation:
10 Points I beg you help explain
Function f is an exponential function. It predicts the value of a famous sculpture, in thousands of dollars, as a function of the number of years since it was last purchased.
What equation models this function?
Enter your answer in the box.
f(x) = (box)
Answer:
The graph is incorrect
The form has to be
f(x) = [tex]a^{x}[/tex]
So, according to the graph, when y = 1 x = -5
This is not possible
Are you sure that the graph is correct?
Step-by-step explanation:
Hope this helps
Find the value of 2abcosC.
Answer:
7
Step-by-step explanation:
a=2
b=2
c=1
2ab cos C=a²+b²-c²=2²+2²-1²=4+4-1=7
Answer:
C
Step-by-step explanation:
Given
a² + b² - 2abcosC = c² ( subtract c² from both sides )
a² + b² - c² - 2abcosC = 0 ( add 2abcosC to both sides )
a² + b² - c² = 2abcosC
Here a = 2, b = 2, c = 1 , then
2² + 2² - 1² = 2abcosC
4 + 4 - 1 = 2abcosC , then
2abcosC = 7 → C