Answer:
for (f+g)(x): 7x + 3; x = -3/7
for (f-g)(x): -3x - 3; x = -1
Step-by-step explanation:
(f+g)(x) = (2x+7)+(5x-4)
Eliminate parentheses.
2x + 7 + 5x -4
Combine like terms.
7x + 3
If you are solving for x, move the 3 to the other side.
7x = -3.
Then divide each side by 7.
x = -3/7
(f-g)(x) = (2x+7) - (5x -4)
Distribute the negative.
(2x+7) + (-5x+4)
Eliminate parentheses.
2x + 7 - 5x - 4
Combine like terms.
-3x -3
If you are solving for x, move the -3 to the other side.
-3x = 3
Then divide each side by -3.
x = -1.
The ratio of the measures
of the angles of a triangle is
6:10:2. What is the measure of
the smallest angle.
Answer:36
Step-by-step explanation:
You would add 6x + 10x + 2x = 180 then add your xs to get 18x =180 divide to 18 then multiply by 2 and get 35 :)
PLEASE HELP!!!!! I'LL MARK BRAINLIEST Which table represents a linear function with a greater y - intercept than that of the function represented in the graph?
A. X Y
0 3
6 -39
B. X Y
-2 0
0 0
C. X Y
0 5
5 -45
D. X Y
-2 1
0 4
E. X Y
0 -7
4 11
Answer:
The answer is c
Step-by-step explanation:
Answer:the answer is c mark me brainiest remember
Step-by-step explanation:
Identify the interval(s) on which the function y = 2x^2 - 8x - 10 is positive.
A. -1
B. x < -1 and x > 5
C. -5
D. X<-5 and x > 1
Given:
[tex]y=2x^2-8x-10[/tex]
To find:
The interval(s) on which the given function is positive.
Solution:
We have,
[tex]y=2x^2-8x-10[/tex]
[tex]y=2(x^2-4x-5)[/tex]
[tex]y=2(x^2-5x+x-5)[/tex]
[tex]y=2(x(x-5)+1(x-5))[/tex]
[tex]y=2(x+1)(x-5)[/tex]
For zeroes, [tex]y=0[/tex]
[tex]2(x+1)(x-5)=0[/tex]
[tex]x=-1,x=5[/tex]
-1 and 5 divide the number line in three parts [tex](-\infty , -1),(-1,5),(5,\infty )[/tex].
Interval Selected Value [tex]y=2(x+1)(x-5)[/tex] Sign
[tex](-\infty,-1)[/tex] -2 [tex]y=2(-2+1)(-2-5)=14[/tex] +
[tex](-1,5)[/tex] 0 [tex]y=2(0+1)(0-5)=-10[/tex] -
[tex](5,\infty)[/tex] 6 [tex]y=2(6+1)(6-5)=14[/tex] +
So, the function is positive for interval [tex](-\infty,-1)[/tex] and [tex](5,\infty)[/tex].
We can say that the function is positive for interval x < -1 and x > 5.
Therefore, the correct option is B.
Factor this polynomial completely.
x^2-8x+16
A. (x-4) (x-4)
B. (x+4) (x+4)
C. (x-4) (x+4)
D. Does not factor
Answer:
(x-4) (x-4)
Step-by-step explanation:
foil [first, outside, inside, last]
x^2 -8x = 16
(x-4) (x-4) = x^2 -4x -4x +16 = x^2 -8x +16
Answer: (x-4) (x-4)
Step-by-step explanation:
I have done this before!
Please help quick!!
Which expression is equivalent to
25?
- 2 + 2 + 2 + 2 + 2
- 5 + 5
- 2 · 2 · 2 · 2 · 2
- 5 · 5
the last one sorry i thought 5 was negative lol
Answer:
5 · 5
Step-by-step explanation:
2 + 2 + 2 + 2 + 2 = 10
5 + 5 = 10
2 · 2 · 2 · 2 · 2 = 32
5 · 5 = 25
. Which expression is equivalent to 14-9?
math
Answer:
5
Step-by-step explanation:
Which of the following is a monomial?
O A. 11x-9
O B. 20x^9
O C. 9/x
O D. 20x^9 - 7x
Answer:
B
Step-by-step explanation:
not so sure but it this might help
Write the equation for the line that has the given slope and contains the given point.
slope = −2
passes through ( 3 , 1 )
Answer:
Step-by-step explanation:
y = mx + b
m = slope
b = y intercept
y and x in the equation represent the coordinate points (3,1)
so substituting,
y = -2x + b
1 = -2(3) + b
1 = -6 + b
b = 7
so the final equation is,
y = -2x + 7
Find the slope intercept equation of the line
Answer:
I know that the y-intercept is 5
Step-by-step explanation:
because the line goes through 5
Answer:
y = -4/5x + 5
Step-by-step explanation:
You need the equation y = mx + b
the y intercept is 5 which is b
You just need to pick any point on the line and use those coordinates to plug into the equation for x and y to solve for the slope (m)
I will use point (5, 1)
So plugging in that coordinate and the value for b in the equation
y = mx + b is (1) = m(5) + 5
Solve for m m= -4/5
so plug m and b back into the equation y = mx + b
is
y = -4/5x + 5
16.437 rounded to the nearest tenth is 16.4.
Answer:
yes
Step-by-step explanation:
Answer:
16.437 rounded to the nearest tenth is 16.4
Step-by-step explanation:
Mrs. Poster's class is divided into three groups of students. Each group has 3 girls and 2 boys, Which expression could she use to find the total number of students in the class?
O 3+(2+3)
(3 X 2) + 3
O 3x (2+3)
(32)
Answer:
3 X (2+3)
Step-by-step explanation:
If we have five students (3 girls and 2 boys), and three groups, we can use the expression 3 X (2+3), which concludes three groups times five students (in each group), which will give us our total of 15 students.
PLEASE HELP zoom in to remove blur
Answer:
The answer is (x + 12) and (x - 12)
A sample of n = 4 scores has SS = 48. What is the estimated standard error for this sample? Group of answer choices
Answer:
2
Step-by-step explanation:
We have
n = 4 scores
SS = 48
For this question, we are required to find the estimated standard error
To get this, we first solve for the variance
S² = SS/n-1
= 48/4-1
= 48/3
= 16
Then S² = 16
S = √16
S = 4
Then the estimated standard error is given by:
S/√n
= 4/√4
= 4/2
= 2.
The estimated standard error is 2.
Which table of values represents a linear function? A B Y y y 0 7 8 7 1 1 3. --- 2 5 2 -1 4 3 3 -4 7 2 С D 2 y y 3 -2 =7 3 5 -1 -5 2 7 1 0 1 1 9 3 4 -3
Answer:
it c for sure
Natalia cut a pie into eighths. She ate 3/4 of the whole pie. What fraction of the pie
did she eat?
A bag contains 30 lottery balls numbered 1-30. A ball is selected, replaced, then another is drawn. Find each probability.
1. p(even, then odd)
2. p(7 and then a number greater than 16)
3. p(a multiple of 5 and then a prime number)
4. p(two even numbers)
Answer:
17÷3 ok so it was just a compliment sometime soon
I need help on this with solutions please
Answer:
See answers below:
1. AAS2. ASA3. SAS4. HL5. SSS6. ΔABC ≅ ΔDFE7. ΔTRS ≅ ΔTUV8. ΔTRS ≅ ΔSUT9. ΔCAB ≅ ΔFDEPLEASE ANSWER ASSAP!!!!!!!!!!!!!!!! WILL GIVE BRAINLEST!!!!!!!!!!!!!!!!!!!
Answer: itIs c for sure
Step-by-step explanation:
Answer:
A should be correct
Step-by-step explanation:
Because there is a right angle present in the diagram, that means it equals 90 degrees. Therefore, the first option is correct.
Hope this helped! :D
PLEASE HELP i’ll mark brainliest !!
Answer:
180-62=118
Step-by-step explanation:
ab=ac means that they are all equal now you know that c=62 angle on a straight line adds up to 180 so you subtract 180 to 62
What is the simplified form of (3\4)exponet3 ? Enter your answer as a fraction by filling in the boxes.
Answer:
Calculator to simplify complex fractions; fractions that have numerators and denominators, each of which are a mixed number, fraction, or integer. Solutions are given to solve the complex fraction by LCD multiplication or as Enter Mixed Numbers, Fractions or Integers Reduce fractions where possible163−615=163−25.
Step-by-step explanation:
Suppose that the functions q and r are defined as follows.
q(x) = -x-1
r(x) = 2x² – 2
Find the following.
(q*r)(-5) =
(r*q) (-5) =
Step-by-step explanation:
r(-5) = 2*25 - 2 = 48
Q(-5) = 5 - 1 = 4
CAN SOMEONE PLEASE HELP ME PLEASE
Answer:
x = 5
Step-by-step explanation:
I already explained and solved it on the other question. Here is the link to my explanation of how it's 5. https://brainly.com/question/20451937
Lamar rented a truck for one day there was a base fee of 18.95 and there was an additional charge of 93 cents for each Miles driven. Lamar had to pay 154.73 when he returned the truck . For how many miles did he drive the truck
Answer:
146 miles
Step-by-step explanation:
Hope this helps!
Answer:
146 miles
Step-by-step explanation:
He payed 135.78 total for gas. Take that number, and divide it by .93 to find out how many miles he drove.
The triangle is rotated 90 degrees clockwise around the pount (0,0)
Answer:
(2,6)
Step-by-step explanation:
Option:B
The triangle is rotated 90 degree clockwise around the point (0,0). The point is (-6,2) is made to rotate. The image so formed is at the point (2,6).
Fill in the table to show a proportional relationship and then identify the constant of proportionality for the cost to the number of yoga classes. In the answer box, please list the constant of proportionality
Answer:
30 = 2
60 = 4
90 = 6
120 = 8
Step-by-step explanation:
60/4 = 15
15 = 1
30 = 2
45 = 3
60 = 4
75 = 5
90 = 6
105 = 7
120 = 8
Enter the sum of numbers as a product of their GCF.
Print
45 +90
The sum of the numbers as a product of their GCF is
Answer:
4, 7 ,2
Step-by-step explanation:
what is 5x^2y^-3 simplified?
Answer:
(5x^2)/(y^3)
Step-by-step explanation:
Answer:
(5x^2)/(y^3)
Step-by-step explanation:
A hiker walks at a speed of 3 2/5 kilometers per hour. How many kilometers will the hiker walk-in:
3/4 hour?
Pls, give the answer in fraction form.
Answer:
2.55 km or 2 11/20 km or 51/20 km
What are your answer choices?
You will need to set the table and make your bed today. This is not always the case
because you set the table every 3 days and you make your bed every other day. When is
the next time you will have to do both activities on the same day?
Answer:
after 6 days
Step-by-step explanation:
what is the best description to the relation.
A. a function that is a one-to-one
B. a function that is many-to-one
C. a function that is one-to-many
D. a relation that is not a function
