Answer:
12x+4
Step-by-step explanation:
Peter earns $ 12.40 each week for completing his chores. Ria earns 1.2 times as money per week as Peter. How much does peter earn each week.? Show your work.
Answer:
Ria earns 14.88 dollars each week
Step-by-step explanation:
Amount earned by peter every week = $12.40
If Ria earns 1.2 times as money per week as Peter, then;
Amount Ria earns = 1.2 * 12.40
Amount Ria earns = 14.88
Hence Ria earns 14.88 dollars each week
To the nearest unit, what is the perimeter of this pentagon?
5
4
3
2
1
65
-3 -2 -1
2 3
4
بي ط ا
27 units
29 units
30 units
34 units
Answer:
The perimeter of the pentagon is;
29 units
Step-by-step explanation:
Let A, B, C, D, and E represent the vertices of the pentagon
The "x" and "y" coordinates of the vertices of the pentagon are given as follows;
A(-6, 2), B(-2, -2), C(5, -2), D(5, 2), E(-2, 5)
The length of the sides between each pair of coordinates can be found using the following formula;
[tex]l = \sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}[/tex]
Therefore, we have;
Length of segment AB = √((-2 - (2))² + (-2 - (-6))²) = 4·√2
Length of segment BC = √((-2 - (-2))² + (5 - (-2))²) = 7
Length of segment CD = √((5 - 5)² + (2 - (-2))²) = 4
Length of segment DE = √((5 - 2)² + (-2 - 5)²) = √58
Length of segment EA = √((5 - (2))² + (-2 - (-6))²) = 5
The length of the perimeter of the pentagon = 5+√58 + 4 + 7 + 4·√2 ≈ 29.2726273554 ≈ 29
The length of the perimeter of the pentagon ≈ 29.
The graph of a quadratic function in shown below.
Which statements about this graph are not true? Select all that apply.
A.
The graph has a y-intercept at (0,5).
B.
The graph has a relative maximum point (-3,4).
C.
The graph has an x-interceptat (1,0).
D.
The graph has the y-axis as a line of symmetry.
E.
The graph has zeros at x = -5 and x = -1.
F.
The graph represents the function f(x) = -x2 - 6x - 5.
Answer:
E
Step-by-step explanation:
The statements that are not true are:
The graph has a y-intercept at (0,5) is not true.
The graph has a relative maximum point (-3,4) is not true,
The graph has zeros at x = -5 and x = -1 is not true.
Options, A, B, and E are the correct answer.
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
- The y-intercept can be found by setting x=0, which gives f(0)=-5.
So the y-intercept is (0,-5).
- To find the relative maximum,
We need to find the vertex of the parabola.
The x-coordinate of the vertex is given by -b/2a, where a=-1 and b=-6.
So, x=3 is the x-coordinate of the vertex.
To find the y-coordinate, we plug in x=3 into the function:
f(3) = -(3²) - 6 (3) - 5 = -32.
So the vertex is (3,-32), which is a relative minimum, not a maximum.
- To find the x-intercepts,
We set y =0 and solve for x.
-x² - 6x - 5 = 0.
Factoring or using the quadratic formula,
We get x = -5 and x = -1.
- The y-axis is a line of symmetry for any parabola of form f(x)=ax²,
f(-x) = a (-x)² = ax² = f(x).
- To find the zeros,
We set f(x) = 0 and solve for x.
-x² - 6x - 5 = 0.
Factoring or using the quadratic formula,
We get x = -5 and x = -1.
So the graph has zeros at x = -5 and x = -1, not x = -2 and x = 3.
- The graph represents the function f(x) = -x2 - 6x - 5.
The graph is true.
Thus,
The graph has a y-intercept at (0,5) is not true.
The graph has a relative maximum point (-3,4) is not true,
The graph has zeros at x = -5 and x = -1 is not true.
Learn more about functions here:
https://brainly.com/question/28533782
#SPJ2
Helpppp!!!!!!!! Asappppp!!!!!
A. It will be twice as much as because the height is increased by 2
What is the solution to the system of equations?
6x−4y=152
y=3x−762
Answer:
Hi! The correct answer is (1448/3, 686)
Step-by-step explanation:
~Solve for the first variable in one of the equations, then substitute the result into the other equation~
fill the answer in the question mark
? / 10 = 24
answer : 240
you do 24 x 10 :)
which unit would you use to measure the length of a soccer field
A. km
B. m
C. cm
D. mm
Answer:
b
why would you measure with something too big or too small?
URGENT DUE IN 10 MINUTES!
You have 8 cups of flour. It takes 1 cup of flour to make 24 cookies. The function C(f) = 24f represents the number of cookies, C, that can be made with f cups of flour. Which set of ordered pairs represent points on the graph of C(f) = 24f?
Answer:
c(0) = 24*0 = 0
c(8) = 24*8 = 192
Your range is [0,192]
Step-by-step explanation:
Answer:
You have 8 cups of flour it takes 1 cup of flour to make 24 cookies the function c(f)=24f
c represents the number of cookies
f represents the cups of flour
You have 8 cups of flour, we can use only 0 to 8 cups of flour.
so domain f is 0 to 8 cups [0,8]
Now we find the range
1 cup of flour to make 24 cookies
So 8 cups of flour = 24* 8 = 192 cookies
using 8 cups you can make 192 cookies
So number of cookies is from 0 to 192
Range is [0,192
Step-by-step explanation:
Marco. Need to buy some cat food at the nearest store three bags of cat food cost $15.75 how much with Marcos me on five bags of cat
Answer:
$26.25
Step-by-step explanation:
We are told that Marco needs to buy some cat food. At the nearest store, 3 bags of cat food cost $15.75.
First of all we will find cost of 1 bag of cat food by dividing 15.75 by 3.
Now we will find the amount that Marco has spend for 5 bags of cat food by multiplying 5.25 by 5.
Therefore, Marco has spend $26.25 for purchasing 5 bags of cat food.
Answer:
5.25 per bag
Step-by-step explanation:
Just divide the amount of money by the number of bags needed.
15.75 divided by 3 = 5.25
Is 4 km greater than 5000meters pls pls pls help
Answer:
No its not
4km =4000m < 5000m
Step-by-step explanation:
hope it helps
Answer:
5000 meter>4km
Step-by-step explanation:
4km is= 4000meter so 5000 meters i greater than 4km
Find the missing side length. Round to the nearest tenth.
11
8
Find the unit rate.
84 miles in 12 days
Unit rate:
mi :
day
Answer:
7/12 7 miles a day
Step-by-step explanation:
Which is the correct answer?, need help
Answer:
A
Step-by-step explanation:
If Mark wants to pay off a loan in 5 years and the bank charges 10 percent interest, how much would Mark pay for the entire loan?
yo somebody help me on this i will mark you has brainlist c: plz
0.4x-0.25=1.75
A. x=2
B. x=5
C. x=1.5
D.x=5.2
Determine whether a triangle can be formed with the given side lengths.
10 ft, 3 ft, 19 ft
A triangle________ have these three side lengths.
(can or cannot)
Answer:
A triangle can have these three side lengths.
Triangle ABC is reflected over the line y = 1. What
are the coordinates of B'?
O (-2,3)
O (-2,5)
(2, -3)
O (4, -3)
Answer:
-2,5
Step-by-step explanation:
Answer:B
Step-by-step explanation:Got it right on edge 2020
hiii please help i’ll give brainliest if you give a correct answer tysm!
Answer:
The budget for dances is $380
Step-by-step explanation:
If we know that the ratio between student government budget for dance and charity event is 5:7 this means that there is some amount of money that fits 5 times into the student government budget for dance and 7 times into the budget for the charity events. So in order to find what is the value of that among we divide $532.00 by 7, and then multiply that amount by 5 to get the budget for the dance events. So we do........
$532.00 / 7 x 5 = $76 x 5 = $380
9(k - 2) = -6 what is k
Answer:
K = 4/3 or 1 1/3
Step-by-step explanation:
4/3 or 1 1/3 - 2 is 2/3
2/3 times 9 is 6
Hope this helps ;)
what is the slope for (-12,-5),(0,-8)
Answer:
m= - 1/4
Step-by-step explanation:
megan is trying to find the length of the segment using the Pythagorean Theorem
Part A : megan made one mistake in her work , which caused her to get the wrong answer what did she do wrong?
Part B : Calculate the correct length of the segment
Answer:
10
Step-by-step explanation:
To obtain the length of the segment :
a² + b² = c²
a = 8 ; b = 6
8² + 6² = c²
64 + 36 = c²
100 = c²
Square root of both sides :
Sqrt(100) = sqrt(c²)
10 = c
Mistake in the solution is that 6² = 36 and not 12
Is 1 a prime or composite number? Explain your answer with complete details
Hello there! ;)
1 is neither prime nor composite.
Prime numbers have 2 factors.
Composite numbers have 3 or more factors.
However, 1 has 1 factor.
Therefore, it's neither prime nor composite.
Hope this helps!
~Just a determined gal
#CarryOnLearning
[tex]MysteriousNature[/tex]
HELP ❗❗ BRAINLISTED TO WHOEVER IS RIGHT
You roll a 6-sided die. Find the P(4).
5 and 6 ................................................help
Answer:
5) 6cm 6)J
Step-by-step explanation:
5) 30/7.5=4
24/4=6
6) J=P
K=Q
L=R
M=S
Plz help me will give crown.
the answer is -2/5 hope this helped
please help me! its about solving system by substitution
Answer:
Step: Solvex=4for x:
x=4
Step: Substitute4forxin2x+3y=14:
2x+3y=14
(2)(4)+3y=14
3y+8=14(Simplify both sides of the equation)
3y+8+−8=14+−8(Add -8 to both sides)
3y=6
3y
3
=
6
3
(Divide both sides by 3)
y=2
Answer:
x=4 and y=2
Step-by-step explanation:
Write an equation representing the direct variation.
х
-2
3
4.
7
y
5
-7.5
-10
-17.5
1) k =
2)
Answer:
y = -2.5x
Step-by-step explanation:
The constant of variation = y/ x = 5/-2 = -2.5
Also -7.5 / 3 = -2.5
-10 /4 = -2.5 and so on
10 A solid metallic cylinder of radius 14 cm and
height 21 cm is melted and recast into equal
small spheres each of radius 7/2 cm. Find then
number of spheres formed.
Answer:
72 spheres are formed
Step-by-step explanation:
We start by calculating the volume of the metallic cylinder
Mathematically, we have this as;
V = pi * r^2 * h
V = pi * 21 * 14^2
V = 4116 π cm^3
The volume of each small sphere is;
V = 4/3 * pi * r^3
= 4/3 * π * 7/2^3 = 57.167 π cm^3
To get the number of small spheres, we simply divide the volumes
That will be 4116 pi / 57.167 pi = 72