1. A plumber charges $50 for a house call in addition to $80
per hour worked. Which equation represents y, the total cost
for x, hours worked?
Answer:
Step-by-step explanation:
Since the plumber charges $50 regardless of how many hours he works, then the equation must be 50 + ....
Since the plumber charges $80 for each hour, then the equation will be y = 50 + 80x.
Ethan graphed a cubic function, f(x)=ax^3+bx^2+cx+d, and determined the roots of f(x) to be +-1 and 2. What is the value of b, if a=1? A. 1. B. 2 C. -1. D. -2
Answer:
Follow me and I'll answer that for you
Simplify to find the quotients . 24. ) (a ^ 8)/(a ^ 3)
Answer:
a^5 is the answer
Step-by-step explanation:
a^8 / a³
= a^8 - 3
= a^5
Answer:
a^5
Step-by-step explanation:
David drew a scaled down model of a racquetball court he played on last week what is the actual perimeter of the court david played on last week
Answer:
Step-by-step explanation:
1. Sarah and Maya both need notebooks and pencils. The equation that represents Sarah's
purchases is y = 13- 3x. The equation that represents Maya's purchases is y = 7 -x. If y
represents the price of notebooks, and x represents the price of pencils, what are the prices of
the notebooks and pencils?
a) pencils: $4 notebook: $3 go to card 4
b) pencils: $6 notebook: $1 go to card 3
c) pencils: $3 notebook: $4 go to card 5
d) pencils: $1 notebook: $6 go to card 7
e) pencils: $4 notebook: $4 go to card 2
Step-by-step explanation:
We have y = 13 - 3x and y = 7 - x.
=> 13 - 3x = 7 - x
=> 2x = 6, x = 3.
Then y = 7 - (3), y = 4.
Hence the price of a pencil is $3 and the price of a notebook is $4. (C)
answer is c) pencils: $3 notebook: $4 go to card 5
PLS HELP IM TIMED!!
The polygon given below is a regular dodecagon.
What is the measure of _E?
- A) 75°
- B) 100°
- C) 150°
- D) 300
Answer: C) 150°
Step-by-step explanation: all the angles are the same
Answer:
c
Step-by-step explanation:
A trainer uses 0.75 roll of medical tape on each soccer player. If there are 15 players on the team and 80% get taped up, how many rolls of tape does the trainer need
Answer:
The answer is 9 rolls.
Step-by-step explanation:
you do 80% of 15. Then you have the number of players that got taped. Now you multiply 0.75 by 12 players.
Please mark me brainliest,5stars, and a thanks! Have a good day!
Trevor works at a toy factory. Trevor makes 92 toys in four hours. Enter the number of toys Trevor will make in six hours at this rate.
Answer:
The answer is 138
Step-by-step explanation:
4:92
1:23
23×6=138
Answer:
138
Step-by-step explanation:
92 divided by 4 = 23
Trevor makes 23 toys per hour
23 x 6 = 138
So, Trevor would make 138 toys in 6 hours.
4,236 + 489 + 23 = N
N = ?
Can y’all please help me with this. I feel like it’s a trick question
Answer:
the correct answer is the last one.
Step-by-step explanation:
good luck on ur test :)
Answer:
0.27
-0.07
0.20
Step-by-step explanation:
A
If it is not A it is a trick question, or a mistake
Report the problem if you can.
Cierra spent $3.48 on a dozen donuts. Find the
unit rate. (The cost for ONE donut!)
Answer:
0.29
Step-by-step explanation:
One dozen = 12
12 donuts for 3.48
3.48/12 = 0.29 per donut
Annette has 1/4 yard of fabric. She cuts it into 3 equal pieces. Each piece of fabric is ______ yard.
Answer:
0.083
Step-by-step explanation:
I think
Evaluate if x = 2, y = 4, and z = 3.
x2 + xyz
Answer:
28
Step-by-step explanation:
If x=2 then 2x2 is 4
Plus 2x4x3= 28
Hope this helps! :D
PLEASE HEKLPP
IF ITS RIGHT ILL GIVE BRSAINLIEST
Answer:
We conclude that:
h(f(-1)) = -2
∴ option D i.e. -2 is correct.
Step-by-step explanation:
Given
f(x) = 4x² - 1
g(x) = 1/2x + 5
h(x) = 2(x - 4)³
To determine
h(f(-1)) = ?
In order to determine h(f(-1)) first we need to determine f(-1).
substitute x = -1 in the function f(x) = 4x² - 1
f(-1) = 4(-1)² - 1
f(-1) = 4(1) - 1
f(-1) = 4-1
f(-1) = 3
so
h(f(-1)) = h(3)
now substitute h = 3 in the function h(x) = 2(x - 4)³
h(x) = 2(x - 4)³
h(3) = 2(3 - 4)³
h(3) = 2(-1)³
h(3) = 2(-1)
h(3) = -2
Thus,
h(f(-1)) = h(3) = -2
Hence, we conclude that:
h(f(-1)) = -2
∴ option D i.e. -2 is correct.
Find the x- and y-intercepts of the graph of the linear equation 3x+6y=2.
Answer:
x intercepts(8,0)
y intercepts (0,-4)
Answer:
x=2/3 y=1/3
Step-by-step explanation:
3x+6y=2 get rid of 6y and put down 3x=2
Do 2 divided by 3x and get an answer of 2/3 x=2/3
----------------------------------------------------------------------------------
3x+6y=2 get rid of 3x and put down 6y=2
Do 2 divided by 6y and get an answer of 1/3 y=1/3
What is the area of this face?
12in²
15in²
16in²
17in²
solve for x in the following question 2x - 3 = 1
Answer:
x = 2
Step-by-step explanation:
2x-3 = 1
use addition property of equality (add 3 to each side to keep balance)
2x = 4
use division property of equality (divide both sides by 2)
4/2 = 2
so,
x = 2
Please mark me brainliest, and I really hope you have a great day!
Para que sirven los modelos matemáticos?
Answer:
Un modelo matemático es una representación simplificada, a través de ecuaciones, funciones o fórmulas matemáticas
Step-by-step explanation:
WILL GIVE BRAINLIEST
Answer:
a) g(-2) = -2
b) g(1) = 1
c) g(x) = 1 then x = 1 or -1
d) D: {all reals}
R: {y ≤ 2}
Step-by-step explanation:
4 7/14 - 9/14 (simplify it)
The answer is 3 5/7 hope this helps
what is the value of x
Answer:
x=121
Step-by-step explanation:
because 180-121=59 and 180-59=121
Fill in the table of values for the function (fx)=3(2)^x
Step-by-step explanation:
-2 = 0.75
-1 = 1.5
0 = 3
1 = 6
2 = 12
Susie ran a race. she ran 5 miles an hour and the race took her t hours to complete.
how long was the race ?
write your answer as an expression
Answer:
5 x 2
Step-by-step explanation:
5 x 2 is the answer because it says she ran 5 miles and took 2 hours to complete!
V = 5x + 2y
x= 3
y=-4
a) Work out the value of V
b) Expand 3p(p + 5)
c) Solve 4(k - 6) = 20
Answer:
a.7
b.
[tex]3 {p }^{2} + 15p[/tex]
c.k=11
Step-by-step explanation:
a.V=5x + 2y ,x=3,y= -4
V=5(3)+2(-4)
=15+(-8)
=15-8
=7
b.3p(p + 5)
=
[tex]3 {p}^{2} + 15p [/tex]
c.4(k-6)=20
4k-24=20
4k-24+24=20+24
4k=44
4k/4=44/4
k=11
hope it's helpful ❤❤❤❤
THANK YOU.
#
ANOTHER 30 POINT LOGS PROBLEM
WILL MARK BRAINLIEST
Which of the following expressions is equivalent to 4n + 8
Answer:
You have to give us the other expressions :)
Step-by-step explanation:
find an Equation for the perpendicular bisector of the line segments whose in points are (8,3) and (2,-7)
which one is it and can you explain why please i need help
Answer:
B. a = 6, b = 8, c = 10
Step-by-step explanation:
Use the Pythagorean Theorem to solve for a right triangle: [tex]a^{2} + b^{2} = c^{2}[/tex]. This is only true for the numbers in solution B.
Hope it helps!
Select all of the values of n that satisfy the equation n2 = 64.
A.
n = –8
B.
n = –32
C.
n=(64−−√)
D.
n=(64−−√)2
E.
n = 8
F.
n = 32
how do I solve for x
Answer:
Step-by-step explanation:
we can use tan=opp/adj
tan=10/40=1/4=0.25
arctan 0.25=14.036 degrees
