Answer:
b= -8
Step-by-step explanation:
If f(x) = - 3x3 -- x2 +8
what is f(-2)?
Answer:
f(-2) = 28
Step-by-step explanation:
Given that,
[tex]f(x) = - 3x^3 -x^2 +8[/tex]
We need to find the value of f(-2). Put x = -2 in the given function. SO,
[tex]f(-2) = - 3(-2)^3 -(-2)^2 +8\\\\=24-4+8\\\\=28[/tex]
So, the value of f(-2) is equal to 28.
What is the slope of a line that passes through the two points (12, -18) and (11,12)
Wilbur won 98 super bouncy balls. He gave four to every student in his math class. He only has 10
remaining. How many students are in his class? Write an equation to represent the situation and solve.
Answer:
22
Step-by-step explanation:
The equation would be:
let s be the number of students
[tex]4s + 10 =98[/tex]
Solve:
[tex]4s+10=98\\4s = 88\\s = 22[/tex]
help please ty i will give brainliest
Answer:
c
Step-by-step explanation:
b^2-4*a*c
81-20*4*1 =1
so you can factorise it to
(p+5) ( p+4 )
What is the transformation shown?
Answer:
it moves up
Step-by-step explanation:
PLZ HELP ASAP
The circle is centered at the point (4,5), and the length of its radius is 3. what is teh equation of the circle?
a) (x-4)^2 + (y-5)^2 = 9
b) (x+4)^2 + (y+5)^2 = 3
c) (x-5)^2 + (y-4)^2 = 9
d) (x^2-4) + (y^2-5) = 3^2
Answer:
The answer is C.
Step-by-step explanation:
help me noww i neex helppppp
HELLOOOOOooOOOoOooOO
HELP MEEEEEEEEEEEEE
Answer:
it is axes
Step-by-step explanation:
Answer:
I guess its Axes and coordinate plane
Step-by-step explanation:
Which expression is equivalently to x^2 + 2x + 2?
Answer:
(x-1)^2 +1
Step-by-step explanation:
Answer:
(x + 1 - i ) (x + 1 + i)
Step-by-step explanation:
question 1. What will Amanda pay if she rents a truck and drives 45 miles and splits the total cost with two friends? Explain with details?
question 2. find the interpret the slope for the graph.
question 3. how much does it cost to rent a truck for a day?
please answer please I really need the answer asap
Answer:
A) Amanda will pay $47.5
B) 0.5
C) $120
Step-by-step explanation:
A) From the graph given, at 45 miles, the total cost of rentage = $142.50
She now splits this cost with 2 of her friends. Thus each of them will pay;
Amount = 142.5/3 = $47.5
So,Amanda will pay $47.5
B) To find the slope, we will pick two points on the graph and use their respective coordinates to find the slope.
Coordinates we pick are;
(0, 120) and (50, 145)
Thus, slope; m = (y2 - y1)/(x2 - x1)
m = (145 - 120)/(50 - 0)
m = 25/50
m = 0.5
C) The equation for the graph will now be; y = mx + c
Where m is slope and c is y - intercept.
Thus;
y = 0.5x + 120
Coincidentally, c = 120 will be the fixed price of the truck while 0.5x will be the variable cost depending on how many miles are driven.
Thus renting for a day is simply the fixed cost of $120
Can SOMEONE PLZ HELPPPP
Answer:
option D would be your answer
Step-by-step explanation:
[tex]y=\frac{-1}{2}[/tex]
Answer:
its -1/2 the last option
Step-by-step explanation:
13. A train travels 24 miles in 2 hours. How many miles per hour is the train traveling? *
Answer:
12 mph
Step-by-step explanation:
24/2 = 12
Answer:
48 miles per hour
Explanation:
24 x 2= 48
Show by parentheses that the sum of x and y is to be subtracted from 4 times the sum of x and y
Answer:
4(x+y)-(x+y)
Is that your answer
The measure of central angle RST is r radians.
What is the area of the shaded sector?
A. 41π units^2
B. 8π units^2
C. 16π units^2
D. 20π units^2
The area of the shaded sector of the circle is 16π units².
How to find the area of a circle?Suppose the circle has radius of 'r' units, then, its area is given as:
[tex]A = \pi \times r^2[/tex]
sq. units
Since radius of a circle is half of its diameter, so if diameter is of 'd' length, then r= d/2, thus, area can be rewritten as:
[tex]\pi \times (\dfrac{d}{2})^2[/tex]
sq. units
We are given that;
θ = r radians
r = 4 units
Now,
To convert radians to degrees, we use the formula:
Degrees = Radians × 180°/π
So,
θ = r × 180°/π
Substituting these values in the formula for area of a sector, we get:
Area of a sector = (r × 180°/π / 360°) × π(4)²
Simplifying, we get:
Area of a sector = r² units²
=16π units².
Therefore, by the area of a circle the answer will be 16π units².
Learn more about area of a circle here:
https://brainly.com/question/13004063
#SPJ5
The dimensions of Tommy's living room are 15 feet by 12.5 feet tommy wants to buy a rug for the living room that is 8 feet by 10 feet which equation can be used to determine a the area of the living room that is not covered by the rug
Answer: (15*12.5)-(8*10)
107.5 is the area not covered by the rug
Step-by-step explanation:
help also use GEMDAS OR PEMDAS brainlest might be given
Answer:
10
Step-by-step explanation:
6(10) ÷ 3(2) = 10
60 ÷ 6 = 10
10 = 10
Which expression is equivalent to -3(1 - y) ?
0-31 - 3y
0-32 + 3y
0-32 - 4
0 -3.2 + y
Answer:
Whichever one equals 3y - 3
Step-by-step explanation:
I went through your answer choices and they don't really make sense. But if one of these equals 3y-3 then that's your answer.
PLEASE HELPPPP! 50 points, my brain has been doing homework all night and this is simple math ;-; I just cant think rn its 7th grade math. Thanks a million!
Jamal reads every day. He read 55 pages on Tuesday, which is 25% less than what he read on Monday. How many total pages did Jamal read on Monday and Tuesday? Write solution as a mixed number.
Answer:
68/.75
an angle is 22 degrees smaller than a second angle. the two angles are complementary. what is the measure of the smaller angle?
Let the first angle be x°.
Then the second angle shall be (x - 22)°.
The two angles are complementary. Hence their sum shall be 90°.
First angle + second angle = 90°
=> x° + x° - 22° = 90°
=> 2x° = 112°
=> x° = 56°
Hence first angle = x° = 56°.
Second angle = (x - 22)° = 34°.
Theo bought a pair of shoes on sale for 20% off the regular price. A
6.50 sales tax was added to the price of the shoes. Which expression
represents the total cost of the shoes with original price s?
A) (0.2s)1.065
B) (0.8s)1.065
C) 0.83 + 1.065s
D) 0.2s + 1.0655
Answer:
c
Step-by-step explanation:
i think soo
plz help,i'll give brainlliest
Base ten numeral
What is Two and four hundred fifty eight thousandths?
Answer:
2.458
Step-by-step explanation:
Answer:
2.458
Step-by-step explanation:
It’s basically Place Values, 2 is in the ones, 4 is in the tenths, 5 is in the hundredths and 8 is in the thousandths.
are -3.5, √16, 3π rational or irrational?
Answer:
-3.5 is rational,[tex]\sqrt{16}[/tex] is rational, and 3π is irrational
Step-by-step explanation:
-3.5, and [tex]\sqrt{16}[/tex] is rational because it can be expressed as a fraction or part of a whole number. 3π is irrational because these numbers cannot be expressed as a fraction or ratio of two integers.
In the expression 9z + 3 - 2z + z - 2, how many terms are there
Answer:
5
Step-by-step explanation:
A scientist completed
1
3
page of a report each hour. The report was 5 pages long. How long did it take the scientist to complete the report?
A.
1
8
hour
B.
1
15
hour
C.
8 hours
D.
15 hours
Answer:
D 15
Step-by-step explanation:
it takes her an hour for 1/3 of a page. 1/3 x 3 = 3. 3x5 = 15
Help pls I’ll give 5.0/5 and crown to first right answer
Answer:
the first option is the correct answer
x^2-2/7x+7
Step-by-step explanation:
what is the circumference of a DVD disc?
Help me pleaseeee:
Find the value of a and b when x=10
a = 5x (squared) ÷ 2
b = 2x (squared) (x-5) ÷ 10x
Can someone plz help me with this one problem plz!!!!
Answer:
x y
0 10
1 13
2 16
3 19
Step-by-step explanation:
y = 3x + 10
Let x = 0 and evaluate the expression.
y = 3(0) + 10 = 0 + 10 = 10
Let x = 1 and evaluate the expression.
y = 3(1) + 10 = 3 + 10 = 13
Let x = 2 and evaluate the expression.
y = 3(2) + 10 = 6 + 10 = 16
Let x = 3 and evaluate the expression.
y = 3(3) + 10 = 9 + 10 = 19
x y
0 10
1 13
2 16
3 19
Can someone please help me solve #6
I’ll give brainiest to the first answer
Answer: It's either 278 or 178
Step-by-step explanation: I didn't know what equation the question wants you to use so for the first equation it showed I did (10^2+24+10+144) and got 278. For the second equation I did 24+10+144 and got 178. Considering it gave you ax+b as an area equation I just added them (same with the other equation). I don't know whether those are correct of not though.