Answers
Answer:
[tex](x-5)(x+8)=x^2+3x-40[/tex]
Step-by-step explanation:
So we have the expression:
[tex](x-5)(x+8)[/tex]
To multiply, distribute the left to the terms on the right:
[tex]=(x-5)(x)+(x-5)(8)[/tex]
Distribute:
[tex]=(x^2-5x)+(8x-40)[/tex]
Combine like terms:
[tex]=(x^2)+(-5x+8x)+(-40)[/tex]
Simplify:
[tex]=x^2+3x-40[/tex]
Therefore:
[tex](x-5)(x+8)=x^2+3x-40[/tex]
Answer:
Step-by-step explanation:
x^2 + 8x - 5x - 40
x^2 + 3x - 40
Related Questions
bob makes $6 dollars and hour. write an expression that will represent his total pay for h hours of work
Answers
Answer:
y = 6x
Step-by-step explanation:
pay = $6 per hour
y = 6x
Answer:
total pay = 6h
Step-by-step explanation:
total pay = pay per hour *hours worked
total pay = 6h
2ab - ab + 2a + 3b + 2ab
what is this simplified ?
Answers
Answer: The answer is 3ab + 2a + 3b.
Step-by-step explanation:
So we are given this equation:
2ab - ab + 2a + 3b + 2ab
First we have to add like terms:
2ab + 2ab - ab + 2a + 3b
4ab - ab + 2a + 3b
3ab + 2a + 3b
Here is your answer!
ab + 2ab = 3ab
3ab + 2a + 3b is the answer
In the formula d = r x t, d is the distance traveled and t is the time traveled. If d = 63 and t = 9, then r =
Answers
Answer:
7
Step-by-step explanation:
D=r*t
r=d/t
r=63/9
r=7
C. Write the value of the expression on the blank.
1. 1-561 =
2. I+181 =
3. 1+751 =
4. I+311 =
5. 1+571 =
6. I+831 =
7. 1-3451 =
8. 1-5981 =
9. l-1121 =
10. I-1431 =
Answers
Answer:
1. = -560
2. = I181
3. = 752
4. = I311
5. = 572
6. = I831
7. = -3450
8. = 5980
9. = -I1121
10. = -I1431
Which expressions are equivalent to 4(4a+5
Answers
Answer:
4(4a+5) = 16 a + 20 = True
Step-by-step explanation:
evaluate zx-xy-7 use x=-3, y=8, and z=-9*
Answers
Answer:
44
Step-by-step explanation:
1. substitute variables with their constants
(-9)(-3) - (-3)(8) - 7
2. multiply all like terms
(27) - (-24) - 7
3. Combine all like terms
27 + 24 - 7
51 - 7
= 44
Answer:
44
Step-by-step explanation:
Evaluate z x - x y - 7 where x = -3, y = 8 and z = -9:
z x - x y - 7 = -9 (-3) - -3×8 - 7
Hint: | Multiply -9 and -3 together.
-9 (-3) = 27:
27 - -3×8 - 7
Hint: | Multiply -1 and -3 together.
-(-3) = 3:
27 + 3×8 - 7
Hint: | Multiply 3 and 8 together.
3×8 = 24:
27 + 24 - 7
Hint: | Evaluate 27 + 24 using long addition.
| 1 |
| 2 | 7
+ | 2 | 4
| 5 | 1:
51 - 7
Hint: | Subtract 7 from 51.
| 4 | 11
| 5 | 1
- | | 7
| 4 | 4:
Answer: 44
two complementary angles have a difference of 36°. Find the measure of each angle. (Complementary angles are angles that add up to 90°) Show ur work
Answers
Answer:
27°,63°
Step-by-step explanation:
Let the two angles be a and b.
They are complementary, meaning they add up to 90. Thus:
[tex]a+b=90[/tex]
And we are told their difference is 36. Therefore:
[tex]a-b=36[/tex]
Solve for the system of equations. Add b to both sides in the second equation:
[tex]a=b+36[/tex]
Substitute this into the first:
[tex](b+36)+b=90[/tex]
Combine like terms;
[tex]2b+36=90[/tex]
Subtract 36:
[tex]2b=54[/tex]
Divide by 2:
[tex]b=27[/tex]
So, b is 27 degrees.
Use the second equation again:
[tex]a-b=36[/tex]
Now that we know b is 27, substitute:
[tex]a-27=36[/tex]
Add 27 to both sides:
[tex]a=63[/tex]
So, a is 63 degrees.
And we're done :)
Answer:
27 and 63
Step-by-step explanation:
x - y = 36
x + y = 90
add the equations together
2x = 126
x = 63
substitute x for x in the first equation
63 - y = 36
y = 27
Write an expression to represent the product of -3 and the square of a number decreased by 8.
How many terms are in your expression?
4
3
2.
1
Answers
Answer:2
Step-by-step explanation:
The expression contains two terms .
What is expression?An expression is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.
According to the question
The product of -3 and the square of a number decreased by 8
i.e ,
Let square number = [tex]x^{2}[/tex]
=> -3[tex]x^{2}[/tex]-8
Hence, The expression contains two terms -3[tex]x^{2}[/tex] and -8 .
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Fractions: three oil tankers together contain 37 5/7 litres of oil. If two tankers have 11 3/14 litres and 12 3/7 litres of oil. Find the oil in the third tanker
Answers
Step-by-step explanation:
It is given that, three oil tankers together contain 37 5/7 litres of oil.
Total volume of oil is [tex]\dfrac{264}{7}\ L[/tex]
If two tankers have 11 3/14 litres and 12 3/7 litres of oil.
Oil in first tanker is [tex]\dfrac{157}{14}\ L[/tex]
Oil in second tanker is [tex]\dfrac{87}{7}\ L[/tex]
Oil in first and second tanker is :
[tex]\dfrac{157}{14}\ L+\dfrac{87}{7}\ L=\dfrac{331}{14}\ L[/tex]
Noo, oil in the third tanker = total volume - (Oil in first tanker + second tanker )
[tex]=\dfrac{264}{7}\ L-\dfrac{331}{14}\ L\\\\=\dfrac{197}{14}\ L[/tex]
Hence, this is the required solution.
Find the volume of the cone.
Either enter an exact answer in terms of or use 3.14 for radius is 6 height is 8
Answers
Answer:
Hey there!
Cone formula: [tex]\pi[/tex]hr^2/3
Plugging in the values, we get the volume is 301.59
Let me know if this helps :)
Answer:
96π
301.59
Step-by-step explanation:
The volume of a cone can be calculated using the following formula:
[tex]V=\frac{1}{3}bh[/tex]
b is the base and h is the height. The base formula for a circle (area):
[tex]b=\pi r^2[/tex]
Insert this value into the formula:
[tex]V=\frac{1}{3}\pi r^2h[/tex]
Simplify the formula:
[tex]V=\frac{\pi r^2h }{3}[/tex]
Now insert the known values:
[tex]V=\frac{\pi(6)^2(8) }{3}[/tex]
Simplify:
[tex]V=\frac{\pi*36*8 }{3}\\\\V=\frac{288\pi }{3}\\\\V=96\pi[/tex]
The volume is 96π units³ or 301.59 units³.
:Done
ng
In 40 baseball games, Juan's team has
scored 50 runs. If the team continues at
this rate, how many runs could the team
expect to score in 180-game season?
II
Answers
Answer:
225 runs
Step-by-step explanation:
180/40 = 4.5
50 × 4.5 = 225
50/40 = 1.25
It’s an average of 1.25 run per game
1.25 x 180 games
= 225 runs
Anyone up? 10 points for anyone that can help on this PRE-ALGEBRA question. see attachment below
Answers
Answer:
1. I= $36, NB = $336
2. R = 5%, NB = $517.50
3. T= 5 YEARS, NB = $612.50
4. P= $675, NB = $783
Step-by-step explanation:
1. p= 300, r=3% t=4year
I= p*r*t
i= 300 * (3/100) * 4
i = 300 * 0.03 * 4
i = 36
New Balance = 300+36 = $336
2. r = (i*100)/(p*t)
= (67.50*100)/(450*3)
= 6750/1350
= 5%
New Balance =450+67.50 = $517.50
3. t= (i*100)/(p*r)
= (112.50*100)/(500*4.5)
= 11250/2250
=5
New Balance = 500+112.50 =$612.50
4. p= (i*100)/(r*t)
= (108*100)/(8*2)
= 10800/16
= $675
New Balance = $675+$108 = $783
Jane Had 3777 apples she added 3997 apples
Answers
Answer:
7774
the answer for the problem you are stuck in
Point estimate is Select one: a. A statistical that estimates a population parameter b. A range of possible values for a population parameter. c. Always equal to the number or samples d. Equal to the population mean
Answers
Answer:
a. A statistical that estimates a population parameter
Step-by-step explanation:
A point estimate is a mathematical or statistics term that describes that is used as a means of revealing an estimated value of some parameter. It utilizes a single value, which can sometimes be the statistic mean to carry out the process of point estimation.
Hence, in this case, the correct answer is Option A: A statistical that estimates a population parameter
PLEASE HELP!!! WILL MARK BRAINLIETST!!! THANK YOU SO MUCH!!!!
Answers
Answer:
1. x=2 2. x=23
Step-by-step explanation:
1: 7(x+3) = 39-2x
7x+21 = 39-2x
9x=18; x=2
2. 2x-5 = 1/2(3x-13)
2x-5 = 1.5x-13/2
0.5x=11.5; x=23
Use the diagram below to find the value of x
{NO} =17
{NP} =5x-6
Answers
Answer : The value of 'x' is 8.
Step-by-step explanation :
As we are given that :
NO = 17
NP = 5x - 6
From the given diagram we conclude that NO and OP are equal and RO and OQ are equal. That means,
NO = OP and RO = OQ
That means,
NO = OP = 17
And we know that:
NP = NO + OP
So,
5x - 6 = 17 + 17
5x - 6 = 34
5x = 34 + 6
5x = 40
x = 8
Thus, the value of 'x' is 8.
Given the function f(x) = -x^2 +7x + 6, find the interval(s) in which f(x) is decreasing.
Answers
Answer:
Step-by-step explanation:
f'(x)=-2x+7
f(x) is decreasing if '(x)<0
so -2x+7<0
or 7<2x
or 2x>7
or x>7/2
including end points f(x) is decreasing in [3/2,∞)
D is the midpoint of AB. If AD=2x+11 and DB=4x-5, find the value of x and AB
Answers
Answer:
x = 8
AB = 54
Step-by-step explanation:
AD = DB
2x+11 = 4x-5
11 = 2x - 5
16 = 2x
8 = x
2(8) + 11 =
16 + 11 = 27
−18+p=18 what property would be used for this
Answers
Answer:
addition property of equality
Step-by-step explanation:
−18+p=18
Add 18 to each side using the addition property of equality
−18+18+p=18+18
p = 36
Simplify the expression 9/(-3)+4/(-8)
Answers
Answer:
21/(-6)
Step-by-step explanation:
9/(-3) + 4/(-8) [find the common denominators]
72/(-24) + 12/(-24)
84/(-24) [simplify]
21/(-6)
Jenna calculated several numbers in her calculator. The result displayed 1.8E-4 on the calculator screen. Which equivalent number(s) does this represent? Select all that apply.
-0.00018
1.8 × 10 -4
18 × 10 4
0.00018
1800
Answers
Step-by-step explanation:
It is given that the result displayed on the calculator screen is [tex]1.8E 10^{-4}[/tex]. We need to say out of all options, which options represent the equivalent number.
[tex]1.8\times 10^{-4}=\dfrac{1.8}{10^4}\\\\=\dfrac{1.8}{10000}[/tex] .....(1)
Option (2) is correct i.e. [tex]1.8E10^{-4}=1.8\times 10^{-4}[/tex]
From eq2uation (1)
[tex]\dfrac{1.8}{10000}=\dfrac{18}{100000}\\\\=0.00018[/tex]
Option (4) is correct.
What is the difference between (-5) to the second power to -5 to the second power
Answers
Answer:
the negative
Step-by-step explanation:
if you do -5 to the second power it will give you -25 and if you do (-5) it will give you 25.
Translate and solve:
The product of a number
and -8 is more than 64
Answers
Answer:
x < -8
Step-by-step explanation:
Step 1: Translate
Product = multiplication = -8(x)
More than = >
64 = 64
Step 2: Write out inequality
-8x > 64
Step 3: Solve
x < -8
What is the value of x in the equation below? Negative 3 minus (negative 8) minus (negative 2) = x –13
Answers
please make me as brainliest
Answer:
A
Step-by-step explanation:
What does n equal in the equation that I've typed out 5n+21?
Answers
Answer:
n does not have a defined value, but it has only one value, it is only possible to determined it in an equality let's say that 5n+21=26 there n =1
but we don't know the value
so it stays as 5n+21
5n=-21
n=-21/5 or n=-4.2
-7 – 9x = -61
please help solve and show your work. thank you.
Answers
Answer:
Step-by-step explanation:
-7 - 9x = -61
-9x = -54
x = 6
Which number has a thousands digit that is ten times greater than the hundreds digit?
A. 134,561
O B. 367,244
O C. 552,673
D. 706,623
please help
Answers
Answer:
B
Step-by-step explanation:7 is greater than 2
The correct answer is 367,244.
What is number system?Number System is a method of representing Numbers on the Number Line with the help of a set of Symbols and rules. These symbols range from 0-9 and are termed as digits. Number System is used to perform mathematical computations ranging from great scientific calculations to calculations.
Positive Numbers: Numbers that are represented on the right side of the zero are termed as Positive Numbers. The value of these numbers increases on moving towards the right. Positive numbers are used for Addition between numbers. Example: 1, 2, 3, 4, …
Negative Numbers: Numbers that are represented on the left side of the zero are termed as Negative Numbers. The value of these numbers decreases on moving towards the left. Negative numbers are used for Subtraction between numbers. Example: -1, -2, -3, -4, …
as per the situation given,
we have number has a thousands digit that is ten times greater than the hundreds digit.
So, the number is 367244 because 7 is 5 greater than 2.
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How many solutions does this equation have? -3 – 7t = -7t - 3
1)no solution
2)one solution
3)infinitely many solutions
Answers
Answer:
3)infinitely many solution
Step-by-step explanation:
-3 - 7t = -7t - 3
-7t + 7t = -3 + 3
0 = 0
if there is same number on both side it have infinitely many solution.
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What are the coordinates of point F?
D
3
B
2
С
--4
- 3
-2
-1
0
2
3
4
-1
- 2
-3
-4
Answers
Answer: Point F is at location (-4, -5)
The x and y axis meet at the origin (0,0)
Start at the origin and move 4 units to the left. This means the x coordinate is x = -4
Then move 5 units down so the y coordinate is y = -5
Put together (x,y) = (-4, -5) describes where point F is located.
Answer:
(-4-5)
Step-by-step explanation:
Solve 9/11 + 3/13 × 26/33 - (21/121÷ 71/111
Answers
refer to the attached image
The value of the give expression is, 6260/8591
What is expression?An expression in maths is a sentence with a minimum of two numbers or variables and at least one maths operation.
Given an expression, 9/11 + 3/13 × 26/33 - (21/121÷ 71/111)
9/11 + 3/13 × 26/33 - (21/121÷ 71/111) =
= 9/11+3x2/33-(21/121x111/71)
= 9/11+6/33-2331/8591
= 9/11+2/11-2331/8591
= 1-2331/8591
= 6260/8591
Hence. the value of the give expression is, 6260/8591
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