Answer:
The image point of (-7, 1) after reflection across the y-axis is:
(7, 1)Step-by-step explanation:
When a point P(x, y) is reflected across the y-axis, we reverse the sign of the x-coordinate while the y-coordinate remains the same.
Thus,
The rule to reflect a point across the y-axis is:
P(x, y) → P'(-x, y)
In our case, we are given the point (-7, 1)
Let say the point is A(-7, 1).
Thus, using the rule to reflect a point across the y-axis is:
P(x, y) → P'(-x, y)
A(-7, 1) → A'(-(-7), 1) → A'(7, 1)
Therefore, the image point of (-7, 1) after reflection across the y-axis is:
(7, 1)A man has 33 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 630 cents, how many dimes and how many quarters does he have?
Answer:
20 quarters and 13 dimes
Step-by-step explanation:
20 x 25 = 500
13 x 10 = 130
550 + 130 = 630
f(x)=-2(x+1)^2-12 in the form f(x) =ax^2+bx+c
Answer:
[tex] \boxed{ f(x) = -2x^2 - 4x - 14 } [/tex]
Step-by-step explanation:
f(x) = -2(x+1)²-12
f(x) = -2(x²+2x+1) - 12
f(x) = -2x² - 4x - 2 - 12
f(x) = -2x² - 4x - 14
please look at the image for the question thanks you.
Answer:
100 cal
Step-by-step explanation:
it says 100 calories on the top left
Armstrong High School decided to purchase 30 lab coats. One lab coat regularly costs $18.50. If a 15% discount is given on the total purchase, how much will the lab coats cost?
Answer:
hahahhahhahahahhahaahshshhshf hffhfh hfhfhh hfhfhfhfhffh
Mike rides his bike with a constant speed of 16km/h. How long will he take to travel 32 kilometers?
X + 9 =20 x=___ help
Answer:
x = 11
Step-by-step explanation:
x + 9 = 20 (Subtract 9 from both sides)
x = 20 -9
x = 11
Verify:
11 + 9 = 20 (Correct)
2(4x-1)+3=7
i'm little confused on this
Answer:
x = [tex]\frac{3}{4}[/tex]
Step-by-step explanation:
Since you cannot subtract -1 from 4x, you multiply 2 × 4x = 8x
Now, you have 8x - 1 + 3 = 7
Seperate the 8x from the other numbers
8x = 1 - 3 + 7 ---> 6
8x = 6
Now simplify
x = [tex]\frac{6}{8}[/tex] <----- to reduce, divide the numerator and denominator by 2
Hence,
x = [tex]\frac{3}{4}[/tex]
Need help Ivan starts with $150 and saves $5 each week. Uma has $45 and saves $20 each week. At what week will they both have the same amount of money? How much money will they each have?
Answer:
$185, 7 weeks,
Step-by-step explanation:
[tex]150 + 5x = 45 + 20x \\ 15x = 105 \\ x = 7[/tex]
A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 2200 seats. The students filled 1672 of the seats in the theater. What percentage of the seats in the theater were filled by the 6th graders on the trip?
3x+4(7-2x) =68. Whats the value of x
Answer:
first we deal with the parentheses.
3x + 28 - 8x = 69
3x - 8x = 41
-5x = 41
x = -8.2
ep-by-step explanation:
Answer:
x = -8
Step-by-step explanation:
Does x=-5 represent a function
Help please!
Diana bought a total of 22 items including boxes of pizza and sodas for an upcoming event. Each box of pizza cost $8 and each soda cost $1.50. If Diana spent a total of $137, which of the following is a true statement?
A. Diana bought 16 boxes of pizza.
B. Diana bought more sodas than boxes of pizza.
C. Diana bought 6 boxes of pizza.
D. Diana bought an equal number of sodas and pizzas
Answer:
B. I think
Step-by-step explanation:
1.50 times 86 equals 129 witch would mean Diana bought 86 sodas
8 is equal to 1 pizza so Dianna could have bought 1 pizza
86>1
8+129 is 137 so I think the answer is B.
20y-10x=5 in slope intercept form can you explain the steps
Given:
The equation is
[tex]20y-10x+5[/tex]
To find:
The slope intercept form of the given equation.
Solution:
The slope intercept form of a linear equation is
[tex]y=mx+b[/tex]
Where, m is slope and b is the y-intercept.
We have,
[tex]20y-10x=5[/tex]
We need to isolate y. Add 10x on both sides.
[tex]20y-10x+10x=5+10x[/tex]
[tex]20y=5+10x[/tex]
Divide both sides by 20.
[tex]\dfrac{20y}{20}=\dfrac{5+10x}{20}[/tex]
[tex]y=\dfrac{5}{20}+\dfrac{10x}{20}[/tex]
[tex]y=\dfrac{1}{4}+\dfrac{x}{2}[/tex]
[tex]y=\dfrac{1}{2}x+\dfrac{1}{4}[/tex]
Therefore, the slope intercept form of the given equation is [tex]y=\dfrac{1}{2}x+\dfrac{1}{4}[/tex].
PLEASE HELP ILL GIVE BRAINLIEST AND 5 STARS AND THANKS!!!!! 60 POINTS!!!!
1) y= 2 x- 4 find parallel line through this point (-4,7)
2) y= -6x find parallel line through this point ( 4,9)
3) y= -½ x +3 find the perpendicular through this point ( 0,8)
4) y= -⅓ x find the perpendicular through this point (-2,1)
Answer:
1: y=2x+15
2: y=-6x+33
3: y=-1/2x+8
4: y=-\frac{1}{3}x+0.333
Step-by-step explanation:
i will mark brain thing help me what is A and B
Solve for y: 5y = 9 1/2
Answer:
1 9/10
Step-by-step explanation:
I was first make me brainliest. :)
Rudy has 10 white seashells 23 pink seashells and 21 brown seashells if he divides his seashells equally between 3 friends how many seashells will each friend get?
Answer:
21 shells
Step-by-step explanation:
10+23+21=64
64/3=21.33
always round down, you'll have one left over
Answer:
18
Step-by-step explanation:
10+23+21= 54
54/3=18
Find the equation of a line which is parallel to y= 2/5 x + 17 and passes through (-15,12)
Answer:
y = 2/5x + 18.
Step-by-step explanation:
The line will have the same slope of 2/5.
Using the point-slope form of a line:
y - 12 = 2/5(x - -15)
y - 12 = 2/5(x + 15)
y = 2/5x + 6 + 12
y = 2/5x + 18.
Answer:
y = (2/5)*x + 18
Step-by-step explanation:
Because the line is parallel to the line y = 2/5 x + 17, the slope of the new line has to be the same as well. So far, we have y = (2/5)*x .
Now what we can do is plug in -15 for x and see what we get for y. Because we get -6, we need 18 more to make it 12. Because of that, the y-intercept is 18 to make the equation of the line y = (2/5)*x + 18.
Solve for x.
−12x+13>35
Drag and drop a number or symbol into each box to correctly complete the solution.
less or greater than
Answer:
the answer is 4
Step-by-step explanation:i hope im right sry if im not
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
uh
Step-by-step explanation:
Answer:
wtffffffffffffffffffff
If longest out of a triangle is 3 inches longer than the shorter side. The medium size is 2 inches longer than the shorter side. If the perimeter is 26 inches, what are the length of the three sides
Answer:
Shortest side = 7 inches.
Medium side = 9 inches.
Longest side = 10 inches.
Step-by-step explanation:
Let the shortest side be x.
Translating the word problem into an algebraic equation, we have;
Shortest side = x
Medium side = x + 2
Longest side = x + 3
The perimeter of a triangle is given by the addition of all its three (3) sides.
Mathematically, the perimeter of a triangle is given by the formula;
[tex] P = A + B + C [/tex]
Substituting into the equation, we have;
26 = x + x + 2 + x + 3
26 = 3x + 5
3x = 26 - 5
3x = 21
x = 21/3
x = 7 inches.
Therefore, the length of the three sides are;
Shortest side = x = 7 inches.
Medium side = x + 2 = 7 + 2 = 9 inches.
Longest side = x + 3 = 7 + 3 = 10 inches.
Pren recorded this data set, which contains an outlier.
204, 216, 111, 224, 230, 211, 210, 198, 200, 218
What numbers represent the range, lower quartile, and upper quartiles?
Answer:
111,200,204,210,211
Step-by-step explanation:
Answer the question in the picture.
Answer:
4
Step-by-step explanation:
have a nice day
Rewrite as a simplified fraction. 0.83 = ?
Answer:
83/100
Step-by-step explanation:
Answer: [tex]\frac{83}{100}[/tex]
Step-by-step explanation:
This is the simplified fraction form of 0.83.
hope this helps :)
Find the radius, diameter and area
12 cm
radius
diameter
Blank 1:
Blank 2:
Blank 3:
I need help *^
Answer:
Hey mate.....
Step-by-step explanation:
If your diameter is 12cm then radius is = 6cm and to find the area use the formula pi.r. power 2.....
hope it helps you,
mark me as the brainliest....
Follow me
ts
Identify as many solutions to the equation below as you can.
x + y = 12
(ex. 1 + 11 = 12, so (1, 11) is a solution)
Answer:
2+10=12
3+9=12
4+8=12
5+7=12
6+6=12
A rectangular prism has a length of 5 cm, a width of 2 cm, and a height of 1 cm.
Which expressions can be used to find the volume of the prism?
Select each correct answer.
O 5.2.1
12.1
o 1}(5+2)
o (123•15)
Answer:
The first two options
Step-by-step explanation:
The formula is V= l x w x h So that is why the first one works.
The second one works because of the commutative property of multiplication which says that the number don't have to be in a certain order so They multiplied the first 2 numbers which equals 12 1/2 which means 12 1/2 x 1/2 would work
solve inequalities if all real- number values of x are solutions of the inequality, write true or false
Answer:
false
Step-by-step explanation:
because real number values of x are not the same
у = 3х + 1
у = 3х - 8
Solve by substation
Find y and x
17/8x+3/4x+1/6-7/12x+18/3 simplify
Answer:
55x + 148/24
Explanation:
