Please help me solve this and please also show work so I can understand it BETTER PLEASEEE ITS DUE
Answers
Answer:
6. 8b²-5b-4
7. -3x²+9x-4
8. 3
9. 6a+15
Step-by-step explanation:
you will subtract/add the numbers with the same variables and exponent.
ex. (number 6) 7b²+ b²= 8b²
5b= 5b 8b²+5b-4
1-5= -4
(plus 5b because it didnt come out to a negative) if you have any questions, say in the comments and ill try my best to help
Related Questions
Jack is x years old.
Eric is three times Jack's age.
Mary is 50 years old.
She is 2 years older than Eric.
How old is Jack?
(2 marks)
Answers
Answer:
Jack is 16
48 divided by 3= 16
Eric is 48
50-2=48
The first step is to find the age of Eric, who is 2 years younger than Mary. Mary is 50 years old, so 50-2=48. Since Eric is three times Jacks age, we have to divide 48 by 3 to find his age. This comes to 16.
(50-2)/3=x
Gray read his book on 3 different weeks. On week 1 gray read 234 pages of the book. On week 2 gray readthe same number of pages on week 1. On week 3, he read 100 pages less than he read on week 2. What was the total number of pagesless than he read on week 2
Answers
Answer:
602 pages
Step-by-step explanation:
Given that he read his book on 3 different weeks in the manner;
week 1 - 234 pages
week 2 - 234 pages
week 3 - 100 pages less than he read on week 2
This means that the number of pages read on week 3
= 234 - 100
= 134 pages
Hence the total number pages in the book
= 234 + 234 + 134
= 602 pages
Answer:602
Step-by-step explanation:
x + 3 = 11 A. x = 11 B. x = 23 C. x = 14 D. x = 8
Answers
Answer:
8 (D)
Step-by-step explanation:
11 - 3 = x
11-3 = 8
hope this helps
Answer:
A) 0.78
B) 2.36
C) 1.54
D) 1
Step-by-step explanation:
I just plugged in the numbers for x so like for A I did (11)+3=11
11+3=14
14/11=0.78 i hope i did that right
If a car travels 400 meters in 20 seconds how fast is it going?
Answers
Answer:
[tex]\huge\boxed{\sf v = 20\ m/s}[/tex]
Step-by-step explanation:
Given Data:
Distance = S = 400 m
Time = t = 20 secs
Required:
Speed = v = ?
Formula:
v = S/t
Solution:
v = 400 / 20
v = 20 m/s
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807what is the midpoint of -7 and 4
Answers
What does 12/18÷3/5 equal to in simplest form?
Answers
Answer:
10/9
Step-by-step explanation:
12/18÷3/5
Simplify
2/3÷3/5
Rule: a÷b/c=a*c/b
2/3*5/3
Rule: a/b*c/d=ac/bd
2/5*3/3
Simplify
10/3*3
Simplify
10/9 (decimal 1.1...)
Hope this help's :)
find the measure of
a. 180 degrees
b. 149 degrees
c. 63 degrees
d. 32 degrees
Answers
Answer:
31 Degrees
Step-by-step explanation:
63+86= 149
180-149=31
name a combination with 24 nickels and dimes that make up 2 dollars
Answers
2 quarters
3 dimes
2 quarters
3 dimes
Write2.1 as a mixed number and as an improper fraction.
Do not try to simplify your answers.
Answers
Answer:
2 1/10 and 21/10
Step-by-step explanation:
2.1 is 2 + 0.1 when expanded.
2 is just 2 and then 0.1 as a fraction is 1/10. The mixed number would be 2 1/10.
The improper fraction is just 21/10 (convert the mixed number into improper form).
Converting from mixed number to improper: Multiply the number in the front (in this case 2) by the denominator.
That is 2 x 10 which is 20. Then add that number (20) to the numerator. 20 + 1 is equal to 21.
21 would be our numerator and the denominator would stay the same (10).
21/10 is the improper form.
3.12 divided 1/2
I need help with this question
Answers
Answer:
6.24
Step-by-step explanation:
Quadrilateral ABCD is dilated by a scale factor of 3/2 to create quadrilateral A'B'C'D'. If quadrilateral ABCD has an area of 30, what is the area of quadrilateral A'B'C'D'?
Answers
Answer:
67.5
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are translation, rotation, reflection and dilation.
Dilation is the enlargement or reduction of an object by a factor.
The area of ABCD = AB * BC = 30
As a result of the dilation to form A'B'C'D', A'B' = 3/2 * AB, B'C' = 3/2 * BC, C'D' = 3/2 * CD and A'D' = 3/2 * AD. Hence:
Area of A'B'C'D' = A'B' * B'C' = 3/2 * AB * 3/2 * BC = 9/4 * (AB * BC) = 9/4 * 30 = 67.5
Answer:
the transformation quadrilateral ABCD undergoes is a reflection.
Step-by-step explanation:
factor: m^2 - 20m - 21
Answers
(m-21) (m+1)there I thinks it's right unless I messed up my work
Answer:
[tex](m - 21)(m + 1)[/tex]
Step-by-step explanation:
[tex]m^{2} - 20m - 21[/tex]
Lets split the middle term.
[tex]=> m^{2} - 21m + m - 21[/tex]
[tex]=> m(m - 21) + 1(m - 21)[/tex]
[tex]=> (m - 21)(m + 1)[/tex]
kevin has a part time job
he earns £8 an hour
he wants to buy a new bike costing £176
how many hours does he need to work to earn enough to but it?
Answers
cuz 176 x 8 is 1408
The following expression has 4 terms.
3x + 3y - 4ab
True
False
Answers
Answer:
3x-4ab+3y
Step-by-step explanation:
I think false as we can see there is not such numbers which makes 9 when multiplied and 4 when added
Quadratics Help!!! (Number 11)
Answers
Answer:
a) 2x + 1, 4x + 7
b) L = 19 cm, W = 7 cm, A = 133 cm^2
Step-by-step explanation:
8x^2 + 18x + 7
ax^2 + bx + c
ac = 8 * 7 = 56
56 = 4 * 14
8x^2 + 18x + 7 =
= 8x^2 + 14x + 4x + 7
= 2x(4x + 7) + 1(4x + 7)
= (2x + 1)(4x + 7)
a) 2x + 1, 4x + 7
b)
2(3) + 1 = 7
4(3) + 7 = 19
A = LW = 19(7) = 133
Could someone’s please solve this for me?
Answers
Answer:
A
Step-by-step explanation:
Because 25 divide 25 equals 1
And then you divide 75 by 25 and that will get you 3
Hope that helps :)
Answer:
[tex] \frac{25}{75} = \frac{1}{k} \\ \frac{1}{3} = \frac{1}{k} \\ \boxed{k = 3}[/tex]
A. 3 is the right answer.A person hikes 4 miles in 2.5 hours. Find the unit rate in miles per hour.
Then find the unit rate in hours per mile.
Answers
Answer:
Step-by-step explanation:
60 miles per hour
Since d=rt, r = d/t = 420 miles/7 hours = 60 miles per hour.
A box of cereal states that there are 72 calories in a 3 fourth cup serving what is the unit rate for calories per cup? HHow many calories are there in 4 cups? The unit rate is _ calories per cup
Answers
Answer:
4 cups = 384 calories ; 1 cup = 96 calories
Step-by-step explanation:
Given that:
3/4 cups = 72 calories
Let Number of calories in 4 cups = x
3/4 = 72
4 = x
Cross multiply
(3/4)x = 72 * 4
(3/4)x = 288
Multiply both sides by 4/3
(3/4 * 4/3)x = 288 * 4/3
x = (288 * 4) /3
x = 384
Hence, 4 cups has 384 calories
Number of calories per cup :
4 cups = 384 calories
1 cup = 384 / 4
1 cup = 96 calories
Caden biked 1 2/5 miles in 1/4 hour. If it is currently 4:00 P.M. and he has to bike 14 miles. At what time will he be finished?
Answers
Answer:
He will finish the biking at 6:30 pm
Step-by-step explanation:
1/4 hour is same as 1/4 * 60 = 15 minutes
1 2/5 miles is same as 1.4 miles
He bikes 1.4 miles in 15 minutes
then he will bike 14 miles in 15 * 10 = 150 minutes
150
minutes is same as 2 hours 30 minutes
Adding this to 4 pm, we will get;
6:30 pm
Can someone help-? Like which one is the right answer
Answers
A deli owner sold 90 sandwiches in one day. Of those sandwiches, 36 were pastrami. Write an equation to show what percent of sandwiches sold were pastrami
Answers
Answer:
36/90 * 100 = p
(p is percent sold that were pastrami)
Step-by-step explanation:
First, 36/90 (part over whole), simplifies to 40/100. We can multiply that by 100 to get a percentage. And that is your equation.
Divide 2x^4+3x^3-5x+6 by x^2+3x-2 .
Answers
2x^4 + 3x^3 - 5x + 6 ÷ x^2 + 3x - 2
= 2x^6 + 3x^5 − 2x^3 − 2x^2 + 6/ x^2
if 12 is to 3 as 61 is to
Answers
Answer:
15.25
Step-by-step explanation:
Could i get brainliest :D
Answer:
HOPE IT HELPS
HAVE A NICE DAY
What is the area of the trapezoid?
6 feet
8 feet
10 feet
1. 80 ft 2
2. 60 ft 2
3. 24 ft 2
4. 64 ft 2
Answers
what is the answer to 22 +10X=
Answers
Complete question:
what is the answer to 22 +10x = 0
Answer:
the value of x is -2.2
Step-by-step explanation:
Given;
22 +10x = 0
collect like terms
10x = 0 - 22
10x = -22
divide both sides by 10
[tex]\frac{10x}{10} = \frac{-22}{10} \\\\x = -2.2[/tex]
Therefore, the value of x is -2.2
Can the triangles be proven similar and how
Answers
Answer:
yes
Step-by-step explanation:
what units do scientist use to measure force
Answers
Answer: newtons
Step-by-step explanation:
Answer:
I believe it is Newtons :)
Step-by-step explanation:
If one of the angle is 60 degree and the other two are in the ratio 1:2,
find the angles.
Answers
Answer:
Let the two angles be x and 2x
Sum of angles of triangle=180°
60+x+2x=180
3x=180-60
x=120/3
x=40
2x=80
Step-by-step explanation:
40 and 80 are other two angles
HELP? I am confused lol
Answers
Answer:
120*10.8= your answer :)
Step-by-step explanation:
If 1 square meter is 10.8 square ft, then 120 square meters should be 120*10.8 square feet.
Explanation: 10.8 square feet is one square meter. So if you multiple 120 which is the about of carpeting there is in the apartment in square meters. By 10.8 it will equals 1,296 square feet
Please helppp answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!
Answers
Answer:
21
Step-by-step explanation:
Remember that the centroid splits the 3 medians of a triangle into a ratio of 1:2
Since TS < TN, TS = 42/2 = 21