Answer:
- 3x² + x + 5
Step-by-step explanation:
- 2x² + 4x + 5 - (x² + 3x) ← distribute by - 1
= - 2x² + 4x + 5 - x² - 3x ← collect like terms
= - 3x² + x + 5
Hi
Golden rule to know by heart : you can only add or substract element of the same kind.
so X^2 with X^2 , X with X , numbers with numbers...
exemple : 2X^2 +3X^2 = 5X^2
but 5X^2 -3X remains that way as 5X^2 is a " X^2" and " 3X" is a " X" so I can't substract two elements of different kind.
Now you have to translate what is ask of you into a calculus.
so : you have
A ) ( 2x^2+4x +5) - ( x^2+3x)
Math is a sport of the mind. You will only progress and become stronger if you train.
So I let you have a shot. beware of signs rules. If you still have trouble, ask in comment section..
Brody has a points card for a movie theater.
He receives 60 rewards points just for signing up.
He earns 12.5 points for each visit to the movie theater.
He needs at least 150 points for a free movie ticket.
What is the least number of visits he needs to make in order to earn a free movie ticket?
A mountain is 18,574 feet above sea level, and a valley is 400 feet below sea level. What is the difference in elevation between the mountain and the valley?
Please help me, I’m not that smart!
Answer:
[tex] \frac{16 {d}^{3} }{ {c}^{2} } [/tex]
Step-by-step explanation:
[tex] {4}^{2} {c}^{ - 2} {d}^{3} {e}^{0} [/tex]
➡️ [tex]16 {c}^{ - 2} {d}^{3} \times 1[/tex]
➡️ [tex]16 {c}^{ - 2} {d}^{3} [/tex]
➡️ [tex]16 \times \frac{1}{ {c}^{2} } \times {d}^{3} [/tex]
➡️ [tex] \frac{16 {d}^{3} }{ {c}^{2} } [/tex]
Find XZ if Y is the midpoint of XZ, XY = 2a + 11, and YZ = 4a - 5
Answer:
XZ=54
Step-by-step explanation:
X___Y___Z
XY= YZ
2a+11=4a-5
4a-2a= 11+5
2a=16
a=16/2
a=8
XY=2a+11=2(8)+11=16+11=27
YZ=4a-5 = 4(8)-5=32-5=27
XZ=XY+YZ =27+27=54
I hope I helped you^_^
Jennifer has 21 pencils she gives 21 pencils to her teacher write an equation that represents this situation
Terri's project for the Math Fair is a magnificent black box that she called a function machine. If you put 3 into her machine, the output is 8. If you put in 10, the output is 29; and if you put in 20, the output is 59. Homework help
a. What would her machine do to an input of 5? What about -1? What about x?
b. Write an equation for Terri's machine
Answer:
a) An input of 5 gives an output of 14. An input of -1 gives an output of -4.
An input of x gives an output of 3x - 1
b) y = 3x - 1
Step-by-step explanation:
The pattern is that you multiply the number by 3 then subtract 1.
3*3 - 1 = 9 - 1 = 8
10 * 3 - 1 = 30 - 1 = 29
20 * 3 - 1 = 60 - 1 = 59
So:
a)
For an input of 5,
5 * 3 - 1 = 15 - 1 = 14
For an input of -1:
-1 * 3 - 1 = -3 - 1 = -4
For an input of x:
x * 3 - 1 = 3x - 1
So the equation is
b) y = 3x - 1
where x is the input value.
The ratio of vowels to Constance to a paragraph is 3:5 there are 280 letters in the paragraph how many are vowels how many are consonant
Answer:
280/8 = 35 "sets"
35*3 = 105 Constance
35*5 = 175 vowels
Step-by-step explanation:
There are 105 consonants and 175 vowels in a paragraph.
What is vowels and consonants?Vowels (such as a, e, I o, and u) and consonants combine to form words (the rest of the alphabet). The letter "y" is a little odd since it can function as a vowel or a consonant depending on the context. Spelling will be made easier for you if you understand how vowels and consonants combine to form words and sounds.
a speaking sound made by people when their teeth, tongue, or lips obstruct the breath from leaving their mouths. grammar. Except for the English vowels a, e, I o, and u, a consonant is a letter that represents a sound made in this way.
Given:
The ratio of vowels to Constance to a paragraph is 3:5 there are 280 letters in the paragraph.
First to find the number of sets in the paragraph as
[tex]\frac{280}{3+5} = \frac{280}{8} = 35[/tex]
Therefore, there are 35 sets in the paragraph.
So, 35 x 3 = 105 are consonants and
35 x 5 = 175 are vowels.
To know more about the vowels and consonants, click on the link
https://brainly.com/question/1066914
#SPJ2
Name:
Date:
Bell: Homework 5: Multi-Step & Compound
Inequalities
** This is a 2-page documenti **
Directions: Solve, graph, and write the solution to each inequality in interval notation,
1.-7a - 11 <1-10
2. 5-9(8 - 2x) = 2x - 115
Interval Notation:
3.-2(7 + y)2 -8(y + 1)
Interval Notation:
4.-5(k+ 4) 2-(3k + 6)
Interval Notation:
Interval Notation:
3(2x + 7)
> x+1
-3
6. r + 10 S-3(2r - 3) + 6(r + 3)
5.
Interval Notation:
Interval Notation:
7.-8m - 12 > -5(m - 8) - 3(m - 7)
8. 18(9-3)=-2{q+7)
Interval Notation:
Interval Notation:
O Gina Wilson (All Things Algebra
Step-by-step explanation:
what you have written I can't send one thing on
-2x + 9x5 + 1 - 9x2
What’s the answer to this someone help plz
Answer:
factored = -2(x-14) Simplified= -2x+28
Step-by-step explanation:
Find three consecutive integers that have the sum of -402
Answer:
-135, -134, -133
Step-by-step explanation:
Hi there!
Let x be equal to the first integer in the set of three consecutive integers.
Let x+1 and x+2 be the consecutive integers.
We're given that they have a sum of -402.
We can construct an equation:
[tex](x)+(x+1)+(x+2)=-402[/tex]
Combine like terms:
[tex]x+x+1+x+2=-402\\x+x+x+1+2=-402\\3x+3=-402\\3x=-405\\x=-135[/tex]
Therefore the first integer is -135.
The next two consecutive integers after -135 is -134 and -133.
Therefore, the three consecutive integers are -135, -134 and -133.
I hope this helps!
pls help with the last question ---------------
11-3tothepowerof2+(11-3)tothepowerof2
Answer:
66
Step-by-step explanation:
11 - 9 + 8^2
11 - 9 + 64
= 66
find the interest where principal (P) Rs 1400 time 2 years ,rate of interest (R) is 5%
Answer:
rs140
Step-by-step explanation:
I=P×T×R/100
1400×2×5/100
2800×5/100
14000/100
140
Step-by-step explanation:
Principle(p)= 1400
time= 2 year
rate= 5%
interest= p×t×r/100
= 1400×2×5/100
= 14000/100
=140
What is the mean of the data set rounded to the nearest tenth?
0.7 1.1 0.8 1.6 1.6 2.2 1.1
Answer:
1.3Step-by-step explanation:
Mean is the average:
μ = (0.7 + 1.1 + 0.8 + 1.6 + 1.6 + 2.2 + 1.1)/7 = 1.3Find the measure of b.
A. 70
B. 110
C. 75
D. 100
Answer: C. 75
Concept:
Here, we need to know the idea of quadrilaterals in a circle.
The opposite angles of quadrilaterals in a circle (cyclic quadrilaterals) are supplementary, meaning they add up to 180°
If you are still confused, please refer to the attachment below for a graphical explanation.
Solve:
Given information
The opposite angle of b = 105°
Given expression
b + opposite angle of b = 180°
Substitute values into the expression
b + 105 = 180
Subtract 105 on both sides
b + 105 - 105 = 180 - 105
b = 75°
Hope this helps!! :)
Please let me know if you have any questions
What is the transformation shown in the graph?
6
c
A
360° rotation
180° rotation
90° rotation
reflection
Answer:
Reflection is shown in the graph.
PLEASE HELP ASAP I NEED AN ANSWER WITHIN 10 MIN PLEASE
Answer:
hope this helps you
have a great day
Is the relation a function? Explain
Set-builder notation?
Domain/range?
Answer:
doamin = set builder nation
Answer:
domain= set builder notation
Solve each for X. Show your work
2x - 3(x + 5) = -10
2x - 3(x + 5) = -10
2x - 3x - 15 = -10
2x - 3x = -10 + 15
-x = 5 / : (-1)
x = -5 ← the end
solve for the value of t
Answer:
24
Brainliest, please!
Step-by-step explanation:
68 + (5t - 8) = 180
5t + 60 = 180
5t = 120
t = 24
Answer:
24
Step-by-step explanation:
5t-8 and 68 are the angles of a straight line so their addition will be180°.
5t-8 + 68 = 180
5t + 60 = 180
5t = 180-60
5t = 120
t= 120/5
t= 24
In the past year Abdul watched 18 movies that he thought were very good. He watched 40 movies over the whole year. Of the movies he watched, what percentage did he rate as very good?
Answer:
45%
Step-by-step explanation:
18/40
You multiply this by 10/10 to get
180/400
And then you divide by 4 to get
45/100
= 0.45
= 45%
The temperature was 4 degrees at midday.
By evening, the temperature was -6 degrees.
What was the change in temperature?
Answer:
the temp dropped about 10. degrees to -6
hillary is cycling across montana taking a 845 mile course . the first week she covered.320 miles. the second week she traveled another 350 miles. how many more miles does she have to travel to complete course?
Answer:
175 miles
Step-by-step explanation:
Hillary has travelled
320 + 350 = 670 miles
in the first two weeks.
Therefore, Hillary starts with 670 miles and needs to add a certain number of miles "x" to get 845 in total.
670 + x = 845
And if we subtract 670 from both sides:
x = 845 - 670 = 175
175 miles
Rewrite as a simplified fraction
0.67
7 is repeating
Answer:
[tex]\frac{17}{25}[/tex]
Step-by-step explanation:
So because it is a repeating decimal we have to round it off first. We can round it to the nearest hundredth making it 0.68. This then becomes [tex]\frac{68}{100}[/tex] as a fraction which can be reduced to its lowest terms by dividing both the numerator and denominator by 4 and then it becomes [tex]\frac{17}{25}[/tex].
HOPE THIS HELPED
Help please plEase bro
Answer:
it seems like the same length as 27 but its probably 27 or in that range like 26 or 28 even.
Step-by-step explanation:
hope this helps
1.) -6v²w³ (v² - 11v²w⁵ + 6w⁴)
2.) -10x⁴y⁴ (x⁴ - 4x⁴y⁴ + 4y³)
it takes 2 hours to bake 8 sheets of cookies. if Brandom and his mother boeing baking at 4:00 pm, when will they finish baking the cookies
Ill give brainlyest I just need help asap!
solve for x in the problem below and show all work
7x - 5x/3 (20/x - 8) -48=0
5(x + 1) - 8 = 5x(2-4)
what is the value of x?
a. -5
b. -1/5
c. 5
d. 1/5
Answer:
d) 1/5
Step-by-step explanation:
5(x + 1) - 8 = 5x(2-4)
5x+5-8 = 5x(-2)
5x-3=-10x
15x = 3
x = 1/5
Answer:
d. 1/5Step-by-step explanation:
5(x + 1) - 8 = 5x(2-4)
=> 5x + 5 - 8 = 10x - 20x
=> 5x + 20x - 10x = 8 - 5
=> 15x = 3
[tex] = > x = \frac{3}{15} [/tex]
=> x = 1/5 (option d) (Ans)
Evaluate-2xy, if x=-4 and y=1.
32
0-16
0-32
16
Answer:
8
Step-by-step explanation:
This question asks for us to substitute values of variables into the following equation: -2xy
We know two pieces of information:
x = -4y = 1All we have to do is substitute the values for variables.
-2xy
-2(-4)(1)
= 8(1)
=8