Answer:
− 2 a 4 − 5 a + 1
Step-by-step explanation:
Answer:
-2a^4 - 5a +1
Step-by-step explanation:
I dunno if this is right but i got this.
URGENT PLZ HELP!
Find the value of x so that the points
(x, 2) and (-5, 8) lie on a line with a slope
of -1.
9514 1404 393
Answer:
x = 1
Step-by-step explanation:
The slope formula can be useful here.
m = (y2 -y1)/(x2 -x1)
-1 = (8 -2)/(-5 -x)
5 + x = 6 . . . . . . . . multiply by (-5-x)
x = 1 . . . . . . . . subtract 5
Tom painted 3 times as many chairs as Louis. Louis painted 5 chairs less than Fred. Altogether they painted 35. How many did Fred paint?
a) 6
b) 11
c) 18
d) 1
Answer:
11
Step-by-step explanation:
11 fred
6 louis
18 tom
please mark me as brainliest!!<3
Answer:
Fred Painted 11 chairs. B
Step-by-step explanation:
Let Tom = T
Let Louis = L
Let Fred = F
Formulas
T = 3*L
F = L + 5
T + L + F = 35 Subtitute for Fred and Tom
Solution
3*L + L + L+5 = 35 Combine like terms
5L + 5 = 35 Subtract 3 from both sides
5L = 35 - 5
5L = 30 Divide by 5
L = 30/5
L = 6
Fred Painted 5 more than Louis.
That makes Fred = 11
5x -9y =-26
-2x +3y =11
Answer:
(-7, -1)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
5x - 9y = -26
-2x + 3y = 11
Step 2: Rewrite Systems
-2x + 3y = 11
Multiply everything by 3: -6x + 9y = 33Step 3: Redefine Systems
5x - 9y = -26
-6x + 9y = 33
Step 4: Solve for x
Elimination
Combine 2 equations: -x = 7Divide -1 on both sides: x = -7Step 5: Solve for y
Define equation: 5x - 9y = -26Substitute in x: 5(-7) - 9y = -26Multiply: -35 - 9y = -26Add 35 on both sides: -9y = 9Divide -9 on both sides: y = -1Answer:
x= -7
y= -1
Step-by-step explanation:
5x-9y= -26..............(1)
-2x+3y= 11...............(2)
5(-2x+3y= 11)
-10x +15y = 55................(3)
2(5x-9y= -26)
10x-18y= -52.....................(4)
Add equation 3&4
-10x+15y= 55
10-18y= -52
-3y= 3
y= -1
put y= -1 into equation ............(3)
-10x+15y= 55
-10x+15(-1)= 55
-10x-15 = 55
-10x= 55+15
-10x= 70
x= -7
Therefore;
x= - 7 and y= - 1
What classes should I take as a freshman in high school
math, science, social studies,elcteives, English,
Answer:
Depends on what you what to do in the future. But u should take math, science and english (those are the main important classes)
Step-by-step explanation:
Sean has to face a big problem but he becomes stronger as a result which saying best summarizes the change in Sean?
A.A switch in tie saves nine
B.be careful what you wish for
C.pride comes before a fall
D.every cloud has a silver lining
Please help me I WILL give brainless <33
Answer:
D.) Every cloud has a silver lining!
Step-by-step explanation:
Hope this helps!
A single card is drawn at random from a standard 52 card deck.
Work out the following probabilities in their simplest form:
P(8)
=
P(not 8)
=
Answer:
Step-by-step explanation:
P(8)
There are 4 eights in a standard deck (no jokers) So the probability is 4/52 = 1/13 = 0.0769
P( ~ 8)
48 cards in a standard deck are not 8
P( ~8) = 12/13 = 0.9231
Which is shorter? 3/6 of a minute or 2/6 of an hour?
Answer:
3/6 of a minute
Step-by-step explanation:
3/6 can also be simplified to 1/2. So, 1/2 of a minute is 30 seconds. 2/6 can be simplified to 1/3. So, 1/3 of an hour is 20 minutes. 30 seconds is very much shorter than 20 minutes. Thus, 3/6 of a minute is shorter than 2/6 fo an hour.
Word problem:
(I only need the answer and explanation no need statements PLS HELP )
The weight of Jack is 30kg 500g. The weight of Dereck is 28kg 700g. What is their total weight? Also, find the difference of their weight?
Answer:
Below.
Step-by-step explanation:
30 kg 500g + 28kg 700g
= 58kg + 1200g
= 59kg 200g.
Difference
= 30 kg 500g - 28kg 700g
= 2kg + 500 - 700
= 2kg - 200g
= 1kg 800g.
Which expression is equivalent to 5(4x + 5)
Answer:
5(4x+5)=20x+25
Step-by-step explanation:
Javier wants to put in a home theater. The area of the space for the screen is 20 ft. by 16 ft. What is the largest home theater screen he can purchase if the size is determined by the length of the diagonal?
Group of answer choices
15 feet
20 feet
25 feet
30 feet
Answer:
25
Step-by-step explanation:
180.5% of 99 is 178.695.
True
False
Answer: true
Step-by-step explanation:
180.5%/100 = 1.805
1.805 * 99 = 178.695
Can someone please help me with this if I’m right or wrong:)
PLEASE HELP!!! i will give 5 stars and a thanks
Answer:
i DONT KNOW HOPEFULLY U DO GOOD
Step-by-step explanation:
Please help me with this one it’s important
Answer:
yeah I'm sorry good luck with this
Step-by-step explanation:
Use the equation below to find v, if u =21, a= 12, and t = 2.
v=utat
Step-by-step explanation:
We have v = u + at = (21) + (12)(2) = 45.
Answer:
v= 1008
v=21*2*12*2
Step-by-step explanation:
Courtney needs to find 2,495 ÷ 48. In which place should she write the first digit of the quotient?
A. Ones
B. tens
C. Hundreds
D. Thousands
Questions related on indices. ( I need a full explanations of how the answer is found. )
Answer:
(a) m = 10
(b) n = 160
Step-by-step explanation:
To rewrite the expression in the manner indicated, write an equation that sets the given expression equal to the desired expression. Then solve for the variable value. The distributive property and the usual rules of exponents apply.
The rules of exponents you can use here are ...
(a^b)(a^c) = a^(b+c)
(a^b)^c = a^(bc)
a^0 = 1
__
(a) 2^101 +2^103 = m×2^100
2^(101-100) +2^(103-100) = m × 2^(100-100) . . . . . . . multiply by 2^(-100)
2^1 +2^3 = m
2 + 8 = m
m = 10
__
(b) 2^101 +2^103 = n×4^48
2^101 +2^103 = n×(2^2)^48 . . . . . substitute 4 = 2^2
2^101 +2^103 = n×2^96 . . . . . . . . simplify
2^5 +2^7 = n . . . . . . . . . . . . . . . . . as above, multiply by 2^(-96)
32 +128 = n
n = 160
_____
Additional comment
The rules of exponents tell you that ...
(m × 2^100) × 2^-100 = m × 2^(100 -100) = m × 2^0 = m
This is effectively the same as dividing by 2^100. You're doing the same thing you would do to solve any linear equation: divide by the coefficient of the variable.
Jeffery bought 203 sheets of stickers. Each sheet has a dozen stickers. He gave away 907 stickers to his family and friends on Valentine’s Day. How many stickers does Jeffery have remaining?
PLEASE HELP!!!PLEASE HELP!!!PLEASE HELP!!!PLEASE HELP!!!PLEASE HELP!!!PLEASE HELP!!!PLEASE HELP!!V
Answer:
12+12+14+15+16+18+20+23=130
130÷8=16.25
aanswer=16
you move 89 as its anomalous
too higher than the other numbers
help???????????????????
Answer:
Please check the explanation.
Step-by-step explanation:
Part a)
Given
m∠ABD = (7q - 46)°m∠CBD = (3q + 6)°It is clear that m∠ABD and m∠CBD lie on a straight line.
Thus, the sum of m∠ABD and m∠CBD will be 180°.
Hence,
m∠ABD and m∠CBD are supplementary angles.
Part b)
As m∠ABD and m∠CBD are supplementary angles, so the sum of m∠ABD and m∠CBD will be 180°.
Thus,
m∠ABD + m∠CBD = 180°
substitute m∠ABD = (7q-46)° and m∠CBD = (3q + 6)°
(7q-46)° + (3q + 6)° = 180°
Part c)
Given the equation
(7q-46)° + (3q + 6)° = 180°
Combining the like terms
7q + 3q - 46 + 6 = 180
10q - 40 = 180
10q = 180 + 40
10q = 220
divide both sides by 10
10q/10 = 220/10
q = 22
Therefore, the value of q = 22
Part d)
As
m∠ABD = (7q-46)°
substituting q = 22
m∠ABD = 7(22) - 46
= 154 - 46
= 108°
also
m∠CBD = (3q + 6)°
substituting q = 22
m∠CBD = 3(22) + 6
= 66+6
= 72°
Therefore,
m∠ABD = 108°m∠CBD = 72°9 million people own dogs in Florida
with 3 million additional people getting
dogs each year. If 13 million people
have cats and an additional 1 million
people get cats each year, in how
many years would the number of
people with cats equal the number of
people with dogs.
Answer:
2 years
Step-by-step explanation:
the answer is 2 years because if right now florida has 9 million dogs and each year 3 million are gained in 2 years there will be 15 million dogs. if there are 13 million cats in Florida right now and 1 million and gained every year. in 2 years there will be 15 million cats.
Why does no one answer my questions?
Answer:
Which one do you need help with
A triangle has sides with lengths of 16 millimeters, 20 millimeters, and 25 millimeters. Is it a
right triangle?
Answer:
No
Step-by-step explanation:
If it is a right triangle, then the Pythagorean theorem must work.
a^2 + b^2 = c^2 (a and b are the shorter sides and c is the longest)
16^2 + 20^2 = 25^2
256 + 400 = 625
656 = 625
This is not true
Hope this helps!
pls help with this question
Answer:
x<56
Step-by-step explanation:
Since the dot over 56 isn't filled in, the inequality doesn't include 56 (so we'll use < or > not [tex]\leq[/tex] or [tex]\geq[/tex])
Now, let's look at the direction of the shading: is it going to the left of 56 or to the right?
This shading is to the left of 56, which indicates that it's all of the numbers less than 56.
As said above, the inequality doesn't include 56
therefore, it will be x<56 (x is less than 56, and 56 is not included)
hope this helps!
Answer:
x<56
Step-by-step explanation:
First off look at the number the dot is on.
Its at 56.
So next we see if the dot is filled in or not.
If the dot is filled in, then its either less than equal to or greater than equal to
If the dot is empty, then its less than or greater than
The dot is not filled in
So next see which way the line is going
The line is going left, which means that the number is getting smaller
Make the equation
start with x
x
The sign will be < because x has to be less than 56.
x < 56
An easy trick to remember which way the sign goes in these types of questions [not in all cases though] is look which way the line is going.
Think of the signs as arrows
If you have < then the line goes <-- left
If you have > then the line goes --> right
If you need further assistance, don't be afraid to reach out. I hope this helps!
what is the product of 3 square root 7 and 17 square root 14 in simplest radical form
[tex]3 \sqrt{7} \times 17 \sqrt{14} [/tex]
This is the problem that we need to solve. The best way to get about it is to first:
Multiply the constant numbers (3 and 17). 3×17 is 51. Next multiply the radicals. [tex] \sqrt{7} \times \sqrt{14} = \sqrt{7 \times 14} = \sqrt{108} [/tex]Simplify the squareroot of 108 since it is 49 times 2. It would be equal to 7 squareroots of 2. Our final answer would be:[tex]51 \times 7\sqrt{2} = 357 \sqrt{2} [/tex]51 x 7 is 357, so the answer above is right.The skills needed are multiplication, mulitplication of radicals, and simplifying radicals, so if you want to review anything use these as reference.
Hope you understood and have a nice day!!
Which of the following numbers is irrational?
A)5/8
B)2/3
C) √12
D-√36
Answer:
A) 5/8
Step-by-step explanation:
5 and 8 are irrational as a fraction
Answer:
5/8 i TOOK THE EXAM REVIEW
Step-by-step explanation:
Brenda school is selling tickets to a spring musical on the first day of ticket sales for school so three senior citizen tickets nine child take it for a total of $75 the school took and $67 on the second day by and five ticket what is the price of each one senior citizen citizen ticket and one child to
Answer:
senior citizen cost $4
children cost $7
Step-by-step explanation:
The question is not complete
Brenda's school is selling tickets to a spring musical. On the first day of ticket sales the school sold 3 senior citizen tickets and 9 child ... The school took in $67.00 on the second day by selling 8 senior citizen tickets and 5 child tickets. What is the price each of one senior citizen ticket and one child ticket?
Given data
let senior citizens be x
and children be y
so
3x+9y= 75--------------1
on the second day
8x+5y= 67------------2
solve 1 and 2 above
3x+9y= 75 X8
8x+5y= 67 X3
24x+72y=600
-24x+15y=201
0x+57y= 399
divide both sides by 57
y= 399/57
y= $7
put y= 7 in eqn 1 above
3x+9*7= 75
3x+63= 75
3x=75-63
3x=12
x= 12/3
x= $4
The area of the entire figure below is 1 square unit.
What is the area of the striped rectangle?
Answer:
3/4 * 2/5
Step-by-step explanation:
Areas is L * W
(1/5 + 1/5) * (1/4 + 1/4 + 1/4) = 2/5 * 3/4
Answer:
3/10
Step-by-step explanation:
The area will be the length of the striped rectangle multiplied by the width of the striped rectangle.
The length will be 1/4 + 1/4 + 1/4 = 3/4 and the width will be 1/5 + 1/5 = 2/5.
Now just multiply 3/4 by 2/5 and you'll get 6/20 which in its simplest form is 3/10.
1. Doug invested $2,500 into a Certificate of Deposit earning 6.5% interest. How long will it take to
double Doug's investment?
Answer:
Step-by-step explanation:
14.5 years
During the last 4 years, Julius visited 26% of the 50
states in the United States. How many states did he
visit?
Answer:
13
Step-by-step explanation:
what number is 26% of 50 is the question
you can set up a proportion: is = percent
of 100
what number 'is' = you are looking for this, so assign a variable
'of = 50
26% = 26
100
n = 26 You can cross-multiply to find 'n'
50 100
100n = 1300
n = 13