Which relations represent a function? Check all that apply.
(Don’t mind 4 and 5, you don’t have to do them)
Solve: y = x + 2
y + 1 = - 4x
On paper
Answer:
(x ,y)= (1/3, -4/3)
Step-by-step explanation:
simplify
y = -4x
x + 2y + 1 = -4x
multiply both sides
4x + y = 0
5 x + 2y = -1
eliminate one variable
-8x - 2y = 0
5x + 2y = -1
divide
-3x = -1
x = 1/3
possible solution
y= -4/3
check the solution
(x, y) = (1/3, -4/3)
simplify
-4/3 = 1/3 + 2 x (-4/3) + 1 = -4 x 1/3
place in order
-4/3 = -4/3 = -4/3
What numbers is 84 divisible by? Select all that apply.
5
6
2
4
3
Answer:
2346
Step-by-step explanation:
Mason is multiplying (3 x 5) x (1/10 x 1/10). What division multiplication problem is he solving?
Answer: 0.15
Step-by-step explanation:
(3 x 5) x (1/10 x 1/10)
= ( 15 ) x ( 1/100 )
= 15 / 100
= 0.15
!!!!!!!HELP PLS!!!!!!
______________________________
1.) Divide both sides by 3:[tex]3[/tex] ÷ [tex]3=[/tex] Cancels Out[tex]12[/tex] ÷ [tex]3=4[/tex]2.) Subtract 2 from both sides:[tex]2-2=[/tex] Cancels Out[tex]4-2=2[/tex]
So your answer is [tex]\bold{x=2}[/tex].
______________________________
OMG PLSSSS HELP ITS DUE RN
PLSSSS OMG
Answer:
THE THREE ANSWERS THAT ARE MISSING ARE GOING TO BE THE SAME AS THE THREE ANSWERS THAT ARE THERE, BUT MAKE THEM POSITIVE.
(1,40) (2,60) (3,120)
Step-by-step explanation:
I HOPE THIS HELPS!!
What is the area of the composite figure?
Answer:
i think a
Step-by-step explanation:
Answer: I think the answer is A Not sure
Step-by-step explanation:
I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would appreciate it!
Heyy It's me again! I hope I can help you with this question too!
Answer:
Im pretty sure it's like 5 or 6 ft
Step-by-step explanation:
sry if its not right
Answer: 4.5 ft
Step-by-step explanation:
21-16.5=4.5
brainliest please? ^^
PLEEESE HELP
i will give brainly to the right answer
Answer: a
Step-by-step explanation:
GEOMETRY SMART PEOPLE WILL GIVE BRAINLIEST!
A secant line contains a chord ___
always
never
sometimes
Answer:
A secant line contains a chord always
Step-by-step explanation:
A line intersecting in two points is called a secant line, in one point a tangent line and in no points an exterior line. A chord of a circle is the line segment that joins two distinct points of the circle. A chord is therefore contained in a unique secant line and each secant line determines a unique chord.
Answer:
A secant line contains a chord ___ always
Step-by-step explanation:
25 points please help!
Answer:
C
Step-by-step explanation:
It is passing through the y and the x axis
Answer:
so sorry
Step-by-step explanation:
4+ (4²- 10) - 3²
please help!!
Answer: 75
Step-by-step explanation:
The diagram shows a portion of a wooden support for the roof of a house. A construction worker says that ∠BDA measures 30° more than ∠DAC. Is the worker correct? Use angle relationships and equations to justify your answer.
Answer:
no because if angle ADC is 108 angle BDA would be 72
Step-by-step explanation:
because if angle ADC is 108 angle BDA would be 72
Steve made $ 125 mowing lawns. He gave 60% of his earnings to his mother. How much did Steve give to his mother?
(if you answer this may you please show your work)
Answer:
$75
Step-by-step explanation:
60% is also 0.6. Multiply 0.6 x 125 to get 75. You multiply because they're asking 60% (0.6) of (x) his earnings (125).
Hope it helps!
A)
-2+x=-x+2
Answer =
Answer:
The answer is x= 2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Hoped this helped!
Brainly, Please?
A recipe calls for 3 cups of flour to make 2 batches of dinner rolls. One batch makes 15 rolls. Laura is making dinner for 12 people and only needs one roll per person.
What proportion will help Laura find how much flour is needed to make 12 dinner rolls?
A. 3/30 = x/12
B. 3/2 = x/12
C. 3/15 = x/12
D. 12/15 = x/3
Answer:
A
Step-by-step explanation:
3 cups of flour produces 2 batches of dinner rolls. So, if one batch makes 15 rolls, then 2 batches makes 30 rolls. Therefore, 3 cups of flour produces 30 rolls.
Laura wants to find how much flour she needs to make 12 rolls.
Here's the setup:
Let x be the number of cups of flour needed. Then,
(3 cups of flour)/(30 rolls)=(x cups of flour)/(12 rolls)
This is the set up for all equations involving ratios. The units should be consistent. Notice how I have flour/rolls=flour/rolls.
It is not necessary to solve the equation, but you should to make sure your answer makes sense. By cross-multiplying, we get x=(3*12)/30 or 1.2 cups.
This solution makes sense. Because 3 cups of flour produces 30 rolls, one cup produces 10 rolls. We need slightly more than 1 cup to get 12 rolls.
HELP PLZZ I FORGOT HOW TO DO THIS!!!! What is the surface area of the square pyramid represented by the net?
Enter your answer in the box.
Answer:
39[tex]ft^{2}[/tex]
Step-by-step explanation:
Area of a triangle = [tex]\frac{1}{2}[/tex] × base × height
All four triangles are similar. So finding the area of one triangle, will be the area of the other triangles.
[tex]\frac{1}{2}[/tex] × 3 × 5 = 7.5[tex]ft^{2}[/tex]
∴ The area of 4 triangles are 7.5 × 4 = 30[tex]ft^{2}[/tex]
Then the only shape remaining is the square.
Area of the square = [tex]length^{2}[/tex] (all the sides of a square are equal)
= [tex]3^{2}[/tex] = 9[tex]ft^{2}[/tex]
Total surface area = 30 + 9 = 39[tex]ft^{2}[/tex]
What are the factors of 24 whose difference is 10?
Answer:
the factors of 24 are 1,2,3,4,6,8,12,24
Step-by-step explanation:
Respond using complete sentences and math language. Mike told his friend Jacky that 16 + 5 * 2 - 3 = 23. Jacky disagrees, she says that 16 + 5 * 2 - 3 = 39. Who is correct? Explain how you know.
Answer:
22 hope this help enjoy ya day
Step-by-step explanation:
help me please thank you sm
what do i do /for the two last ones which is even, bigger or smaller and what are they\
Answer
this is an ex: 2/3>1/3 i hope this helps a.= 10/9s is bigger so put < and b.= 5/4s is bigger so do >
Step-by-step explanation:
What are the solutions to 7x2−15x−18=0?
A x=−37 and x = 6
B x=−6 and x=37
C x=−67 and x = 3
D x=−3 and x=67
Answer:
C.) X=3 and X=-6/7
Step-by-step explanation:
Use the quadratic formula to solve
HELP MEH!!!!!!!!!!!!!!!!!!!!! please UwU
Answer:
Its C
Step-by-step explanation:
Answer:
e
Step-by-step explanation:
A cell phone battery with 22% charge takes 176 minutes to run out. How long will a fully charge battery last?
Answer:
800
Step-by-step explanation:
176 divided by 22=8
8x100= 800
It will take 13.33 hours to battery run out.
What is unit rate?A unit rate means a rate for one of something.
Given that, A cell phone battery with 22% charge takes 176 minutes to run out.
In 22% → 176 minutes
In 1% → 176/22 = 8 minutes
In 100% → 8x100 = 800 minutes
800 minutes = 800/60 = 13.33 hours.
Hence, the battery will work for 13.33 hours when charged 100%
For more references on unit rates, click;
https://brainly.com/question/11258929
#SPJ2
The triangles below will be used to construct a polygon.
2 right triangles with side lengths 3.2 and 7.1. The hypotenuses are not labeled.
Which type of polygon could be created?
rectangle
square
octagon
heptagon
please help I rlly need it!
How many 1/4 inch cubes does it take to fill a box with width 1 1/4, length 3 3/4 inches and height 2 1/4 inches?
Answer:
4 of those 1/4th inches wouldnt it ?
Step-by-step explanation:
Volume of the box: 1 1/4 x 3 3/4 x 2 1/4 = 10 33/64 cubic inches.
Volume of cube : 1/4 x 1/4 x 1/4 = 1/64
Number of cubes: 10 33/64 / 1/64 = 673 cubes
Does the equation y = 4.2x represent a proportional relationship? Choose the correct response.
A. Yes. The constant of proportionality is 4.2.
B. Yes. The equation is linear.
C. No. The equation is linear.
D. No. There is a rate of change of 4.2.
Answer:
A .The constant of proportionality is 4.2
Step-by-step explanation:
The reason its a is because the rate of increase is always going to be be multiplied by 4.2 to stay increasing on a graph. So the constant change is always going to have to do something with 4.2
7m−6, when m=8
I will give u the crown if your answer is correct :)
7m - 6
= 7(8) - 6
= (7 × 8) - 6
= 56 - 6
= 50
Answer:
50
Step-by-step explanation:
putting the value of m,
(7×8) - 656 - 650Packs of pens are $3.5 each with a $6 delivery charge when ordered online.
a. Write an equation to represent the total spent on packs of pens based on the number purchased.
b. Graph the equation.
Answer:
its A
Step-by-step explanation:
Answer:
aAEDS
Step-by-step explanation: