Answer:
a. –4(5x) = 12; OPEN
b. 4 x 6 = 24; TRUE
c. a + 4 = 6, when a = 2; TRUE
d. 4x = 19, when x equals 5; FALSE
Step-by-step explanation:
a. –4(5x) = 12 [-20x = 12 {Divide -20 from both sides} x = -0.6 So, if x is = -0.6, then it is true, so OPEN.
b. 4 x 6 = 24 [4 x 6 = 24 so TRUE]
c. a + 4 = 6, when a = 2. (Plug 2 in for a) 2 + 4 = 6; 6 = 6; TRUE
d. 4x = 19, when x equals 5. (Plug 5 in for x) 4(5) = 19; 20 is not = 19; FALSE
i need helppppp really fast I just need you to check my answer please
Answer:
You are correct, the answer is D, 24 degrees
Step-by-step explanation:
First we know that a straight line is 180 degrees. We know that part of it is 156 degrees so that must mean that one side of the triangle is equal to 24 degrees (Subtract 180-156). That is one side.
Which statement about the linear factors and zeros of a quadratic function is always true? The constants of the linear factors are the opposite of the function's zeros. A function's zeros can be determined by setting each linear factor equal to 0 and solving. If a function's zero is an integer, then the coefficient of the variable in the linear factor must be one. Multiplying the constants of the linear factors gives one of the function's zeros, and adding the constants gives the other zero.
Answer:
A function's zeros can be determined by setting each linear factor equal to 0 and solving.
Step-by-step explanation:
This is because in finding the zero's of a quadratic function, we factorize the quadratic function to obtain its linear factors. Then, each linear factor is then equated to zero to solve for the zeros of the quadratic function.
The solution of the equating to zero of the linear factors give the zeros of the quadratic function.
You have a friend who is 6 feet, 5 inches tall. How tall is he in inches?
(6.-12) & (15,-3)
Need to find slope
Answer:
i look it up
Step-by-step explanation:
!brainlisest! Find the value of y in the diagram.
Answer:
y=8
Step-by-step explanation:
The two triangles are similar, but scaled to a ratio.
Given the ratio of two corresponding sides AC and NL, the scale is 10:5 which is 2. So, the side MN when scaled to the same ratio, the corresponding side's length y = 4*2 = 8 ft
If you were to rotate the point (-5,8) around the origin 270 degrees counterclockwise what would the new coordinates be?
Answer:
5,8
Step-by-step explanation:
A point (-5,8) rotated around the origin 270 degrees counterclockwise will have coordinates (-8, -5).
What are transformations?Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
Dilation: The preimage is scaled up or down to create the image.
Reflection: The picture is a preimage that has been reversed.
Rotation: Around a given point, the preimage is rotated to create the final image.
Translation: The image is translated and moved a fixed amount from the preimage.
We know when we rotate a point counter-clockwise the coordinates (x, y) becomes (-y, x).
Given, A point (-5,8) around the origin 270 degrees counterclockwise.
∴ The new coordinates of the points will be (-8, -5).
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Who can read my work?
Answer:
kinda hard to understand :)
Step-by-step explanation:
Mia has a $25 gift card for an online music store. She buys an album for $9.50 and wants to use the remaining money on the card to buy individual songs, which cost $1.25 each. Write and solve an equation to find the number of songs Mia can buy.
Answer:
12
Step-by-step explanation:
Answer:
Mia can buys 12.4 songs.
Step-by-step explanation:
25 - 9.50 = 15.50
15.50 : 1.25 = 12.4
(-10,5) ( 2, -3) determine the slope of the line
Answer:
-2/3
Step-by-step explanation:
-3 - 5 = -8
2 - (-10) = 12
-8/12 = -2/3
whats 4 3/4 times 3 4/5
Answer:
361/20
Step-by-step explanation:
One month Joe rented 3 movies and 5 video games for a total of $39. The next month he rented 9 movies and 7 video games
for a total of $63. Find the rental cost for each movie and each video game.
X square +1/2x+blank= 2+ blank
Three teachers equally shared StartFraction 4 Over 5 EndFraction of a flat of paper that was donated to the school. What fraction of the flat of paper did each teacher receive? StartFraction 4 Over 45 EndFraction of the flat StartFraction 4 Over 15 EndFraction of the flat StartFraction 14 Over 45 EndFraction of the flat StartFraction 12 Over 15 EndFraction of the flat
Answer:
b
Step-by-step explanation:
clare wants a to mail a package that weighs 4 1/2 pounds. what could be its weight in kilograms explain
Answer:
urmom
Step-by-step explanation:
GAY
The 6x −3y= 24 represents Shari’s distance from home, y in blocks, on her run across town over time, x, in minutes. What is the x-intercept of this line? What does the x-intercept represent?
Group of answer choices
Answer:
4; Shari ran past her home after 4 minutes.
Step-by-step explanation:
The x-intercept means that at 4 minutes the distance from home in blocks on her run across town over time is zero.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
6x - 3y = 24
x-intercept means y = 0.
So,
6x - 3 x 0 = 24
6x - 0 = 24
6x = 24
x = 4
Now,
The x-intercept means at 4 minutes the distance from home is o.
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Solve for x show your work 4(x+1)=-3x-10 plz show work
Answer:
4(x + 1)= -3x - 10
on the bracket 4( x +1)
4x + 4 = -3x - 10
collect like terms
4x + 3x = -10 - 4
7x = -14
divide both sides by 7
x = -2
A batch of cookies calls for 3 3/4 cups of flour. Amelia is making two batches of cookies. How many cups of flour will she need?
Answer:
7 2/4 or 7 1/2
Step-by-step explanation: You can add the 3 3/4 to 3 3/4 or mutlipy 3 3/4 by 2 because you need to find the number of 2 batches.
What is the difference between 5x +3 and 5(x+3)?
Step-by-step explanation:
for 5(x+3) you have to use the distributive property to find its standard form because it has parenthesis:
this would give you 5x+15 which is not the same as 5x+3.
Solve the following quadratic equation by using the quadratic formula.
-2x^2 - 3x + 4 = 0
(Answers are in photo)
10 points!!!
please explain how you got your answer.
Answer:
B. [tex]\frac{-3}{4}[/tex]±[tex]\frac{\sqrt{41} }{4}[/tex]
Step-by-step explanation:
First, substitute the equation into the quadratic formula.
[tex]x=\frac{b+-\sqrt{(b^{2} )-4(a)(c)} }{2a}[/tex]
x=[tex]\frac{-3+-\sqrt{(3)^2-4(-2)(4)} }{4}[/tex]
Solve for x.
x= [tex]\frac{-3+-\sqrt{9+32} }{4}[/tex]
x=[tex]\frac{-3+-\sqrt{41} }{4}[/tex]
The answer is x= [tex]-\frac{3}{4}[/tex]±[tex]\frac{\sqrt{41} }{4}[/tex]
Let p: A student plays basketball.
Let q: A student plays tennis.
How many students play both basketball and tennis?
4
8
32
36
Answer:
the answer is 4
Step-by-step explanation:
By the concept of the intersection of sets 4 students play both basketball and tennis
What are sets and subsets?A set is a collection of well-defined objects.
A subset contains all the elements or a few elements of the given set.
The improper subset is when it contains all the elements of the given set and the proper subset is when it doesn't contain all the elements of the given set.
In this example, we search for the group of students who participate in both sports because we are aware that p is the set formed by the students who play basketball and q is the group formed by the students who play tennis. In other words, we seek the point at where the sets p and q intersect.
Each set is represented by a circle in the Venn diagram, and the set produced by the intersection of p and q is represented by the area where the two circles overlap.
This graph demonstrates that there are 4 kids that participate in both basketball and tennis.
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What is an equation of the line that passes through the point (6,6) and is parallel to the line 3x-2y=4?
Answer:
Fraction: y= 3/2x-3
or
Decimal: y= 1.5x-3
Step-by-step explanation:
Turn 3x-2y=4 into y=mx+b form
Subtract 3x from both sides
-2y=4-3x
Divide -2 from both sides
y= -2+3/2x
y= 3/2x-2
Since the line is parallel, use slope 3/2
Put point (6,6) into equation to find b
6=3/2(6) + b
6=9 + b
-3 = b
Put into equation
y= 3/2x-3
Answer:
Step-by-step explanation:
y= 3/2x-3
Please help me i would really appreciate it Solve (-7).(-4)
THIS GIVES 50 POINTS
Answer:
28
Step-by-step explanation:
jjsndbddjijfnfbfbdhjdidoxo29294847
What is the importance of function in real life?
Answer:
it's not important.........
A restaurant needs to plan seating for a party of 150 people. Large tables seat 10 people and small tables seat 6. Let x represent the number of large tables and y represent the number of small tables. Write an equation in standard form to represent this situation.
Answer:
(0, 25) or (3, 20) or (6, 15) or (9, 10) or (15, 0)
Step-by-step explanation:
It takes 12 men 8 days to construct a wooden shed. How many days will 15 men take?
Answer:
10 days.
Step-by-step explanation:
8÷12 (because you can not divide people.
.666
take that and multiply it by 15
you will get 10
Aye yo help me plz!
1.) Which of the following equations is not a linear equation?
A) y = -4
B)X 3 = 1
C) 2x -4y =1
D) y= X - 2
2.) Find the value of y that makes the equation y= -x + 5 true, when x =-4
A.) -1
B.) 2
C.) 1
D.) 9
3.) Find the value of y that makes the equation y= x + 1/4 true, when x = - 1/4.
A.) -4
B.) 0
C.) 1
D.) 4
Answer:
1) B
2) D
3) B
Step-by-step explanation:
For question 1:
Assuming that option B is [tex]x^3=1[/tex], it is not a linear function.
Linear functions have equations that do not have exponents.
For question 2:
[tex]y=-(-4)+5\\\\y=4+5\\\\\boxed{y=9}[/tex]
The option is D.
For question 3:
[tex]y=x+\frac{1}{4}\\\\ y=-\frac{1}{4}+\frac{1}{4}\\\\ \boxed{y=0}[/tex]
The option is B.
Hope this helps.
Michelle has 30 apples if she shared all of them equally with her self and her two friends. Then how many did each get
Answer:
They each got 10 each.
Step-by-step explanation:
2+1=3
30 divided by 3=10!
During a science experiment, your teacher does a demonstration. She takes a
small piece of rope, weighs it to find its starting weight, burns it, and then
weighs it again. The final mass of the product is different from the starting
weight of the reactant.
Why is the final mass different? Does this mean that the product has less
mass? Why or why not?
Answer:
less mass
Step-by-step explanation:
The product has less mass because some of its mass got burned. Hope this helps!
some parts of the rope turned into gasses because of the intense heat (fire)
Write the equation in terms of x.
2x + a =p
