Evaluate. a-b if a = 1/4, b = 2/5x, please show work
Answer:
1/4 does equal 2/5
Step-by-step explanation:
Brianna is getting materials for a chemistry experiment. Her teacher gives her a container that has 0.55 liter of liquid in it. Brianna needs to use 0.2 of this liquid for the experiment.
How much liquid will Brianna use?
Is this a Right Triangle 9 m, 15 m, 17 m
Yes or No?
Answer:
No it would not be because two sides added up would not equal the other side
Step-by-step explanation:
Answer:
No it is not.
Step-by-step explanation:
All right triangles follow the Pythagorean theorem [tex]a^2+b^2=c^2[/tex] where the squares of the two shorter sides of the right angle triangle is equivalent to the square of the longest side.
Squares of the two shorter sides:
[tex]9^{2}+15^{2}=306[/tex]
Square of the longer side:
[tex]17^{2}=289[/tex]
∵ [tex]306\neq 289[/tex], ∴ the triangle is not a right angle triangle.
I hope this helps :)
f(x) = x2 - 460x + 42000
Answer:
y = -42000 + 460x + -1x2
Step-by-step explanation:
If 45% of a number is 63 and 35% of the same number is 49, find 80% of that number.
Answer:
Step-by-step explanation:
1) Let the number be y
45%of y=63
45y/100=63
Y=6300/45
Y=140
So 80%of a number =80y/100
=80×140/100
=112.
Let the number be y
35%of y=49
35y/100=49
Y=4900/35
Y=140
So 80%of a number =80y/100
=80×140/100
=112.
Clark, Kasalyn, and Carson wrote an equation of a line with a slope of -5 that passes through the point at (-2,4). Is either of them correct? Explain your reasoning.
I. Clark's Equation
y-4= -5(x-(-2))
II. Kasalyn's Equation
y= -5x-6
III. Carson's Equation
-2x - 4y= -5
A. Student's I and II are correct
B. Student's I and III are correct
C. Student's II and III are correct
D. All are correct
E. None are correct
Please help me(ik it’s not C)
I think the correct answer is B :)
Isaac's favorite cereal is running a promotion that says 1-in-4 boxes of the cereal contains a prize. Suppose that Isaac is going to buy 6 boxes of this cereal, and let X represent the number of prizes he wins in these boxes. Assume that these boxes represent a random sample, and assume that prizes are independent between boxes. What is the probability that he wins exactly 2 prizes in the 6 boxes?
Answer: 0.3 on khan academy
Step-by-step explanation: ♂️
The probability that he wins exactly 2 prizes in the 6 boxes is to be considered as the 0.30.
Calculation of the probability:Since Isaac's favorite cereal is running a promotion that says 1-in-4 boxes of the cereal contains a prize this mean
So,
P(box containing prize) = 1/4 = p =0.25
So,
q=1 - p
= 0.75
And total box (n)=6
Let us assume x be number of prize win.
So,
Probability that he will win exactly two prize is
P(X=2)= [tex]\binom {6}{2}(0.25)^2(0.75)^4[/tex]
= 0.2966
=0.30(approx)
hence, The probability that he wins exactly 2 prizes in the 6 boxes is to be considered as the 0.30.
Learn more about probability here: https://brainly.com/question/24760080
expand the linear expression 6 (7m+2)
help plz as soon as possible
The length of a rectangle is 1 foot less than twice the width. If the area is 45 ft2, find the length and width.
Question 8 options:
A)
Width = 9, length = 10
B)
Width = 9∕2, length = 10
C)
Width = 4, length = 7
D)
Width = 5, length = 9
Answer:
Step-by-step explanation:
Simplify
2(x+7) 2x + 20
- 2 =
x+4
2x + 8
Answer:
x = -20
Step-by-step explanation:
2(x+7) 2x + 20 - 2 = x+4 2x + 8
2x+14 + 2x + 20 - 2 = x + 4 + 2x + 8
4x +32 = 3x + 12
x = -20
2n – 32 = 10(n - 8) what is the answer
Answer:
n = 6
Step-by-step explanation:
2n - 32 = 10n - 80
2n - 10n = -80 + 32
-8n = -48
-48/-8 = 6
Find the values of x and y.
X= __
Y= __
Answer:
x = 20
y = 100
Step-by-step explanation:
To figure out x do this.
3x + 2x = 7x - 40 (collect like terms)
5x = 7x -40 (subtract 7x on both sides)
-2x = -40 (divide by -2 on both sides)
x = 20
Plug in to get y
Since 7x - 40 and y are vertical they equal the same amount
7(20) - 40 = y (multiply 7 by 20)
140 - 40 = y (collect like terms)
100 = y
Hope this helps ya! Keep smiling!
Rob has a collection of 800 baseball cards. 30% of the cards feature pitchers. 42% of the cards feature infielders. The remaining cards feature outfielders. How many cards in Rob’s collection feature outfielders?
Answer:
224
Step-by-step explanation:
Answer quick please!
Determine if the equations are parallel, perpendicular or neither. -9y=-3x+18 and 2x-6y=30
Answer:
The answer is They are parallel
Step-by-step explanation:
They have the same slope but different y-intercepts
y = 1/3x - 2
y = 1/3x - 30
pls mark me as brainliest
Answer: Parallel
Step-by-step explanation: They never cross therefore making the two equatons parallel lines
What is 30% of 60? A. 0.18 B. 1.8 C. 18 D. 180
Answer:
C ) 18 hope this helps !!!
Answer:
C. 18
Step-by-step explanation:
If you multiply 30%, or .3 by 60, you get 18.
What is four x minus four x
Answer:
0
Step-by-step explanation:
4x minus 4x
you multiply 4x and get 0. Then you subtract both 0 which equals 0. Hope this helped
Answer:
0
Step-by-step explanation:
4x - 4x = 0
an energy rich compound such as sugar
Answer:
Sugars provide living things with energy and act as substances used for structure. When sugars are broken down in the mitochondria, they can power cell machinery to create the energy-rich compound called ATP (adenosine triphosphate).
Step-by-step explanation:
Hope this helps you
PLEASE HURRY, IT'S URGENT 6th grade lvl
A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 1/35 of a gallon of gas to go 1 mile.
a.How far can the car travel with 15 gallons? Show your reasoning.
b. How much gas does the car use to go 100 miles? Show your reasoning.
Answer:
ITS 295
Step-by-step explanation:
ITS 295
what is the scale factor of the following figure which shows triangle A dilated to triangle B?
A. 8/2 = 4/1 = 4
B. 2/8=1/4= 0.25
C. 6/3=2/1=2
D. 3/6=1/2=0.5
Answer:
B. 2/8=1/4= 0.25 ? I don't really know I'm failing class
Answer: I dont know if it is, but B right?
pleaseeee help and fast !
who can help me on my math homework for 10 points asp
Answer:
the answer would be C
Step-by-step explanation:
because it has to be bigger than 1/8
Lines a and b are parallel. Line c is a transversal. FInd the measures of all angles formed by a, b, and c, given each scenario. One of the angles measures 150 degrees.
Answer:
30° and 150°
Step-by-step explanation:
Given
Parallel lines a and b
Transversal c
Angle = 150°
Required
Determine the list of possible angles
A transversal divides a parallel line into two measure which add up to 180°
Given that one of the angles is 150°, the other angle would be 180° - 150°
Other angle = 180° - 150°
Other angle = 30°
Aside 30° and 150°, there's no other possible angle that can be formed by the given information
Answer:
30 and 150
Step-by-step explanation:
Given
Parallel lines a and b
Transversal c
Angle = 150°
Required
Determine the list of possible angles
A transversal divides a parallel line into two measure which add up to 180°
Given that one of the angles is 150°, the other angle would be 180° - 150°
Other angle = 180° - 150°
Other angle = 30°
Aside 30° and 150°, there's no other possible angle that can be formed by the given information
WILL GIVE BRAINLIEST TO CORRECT ANSWER
find -8/15 * 20/64
A. -1 over 6
B. 1 over 6
C. 2 over 3
D. -2 over 3
Answer:
A. -1 over 6
Step-by-step explanation:
[tex]-\frac{8}{15}[/tex] × [tex]\frac{20}{64} = -\frac{160}{960}[/tex] [tex]-\frac{160}{960} = -\frac{1}{6}[/tex]I hope this helps!
Answer:
-1 over 6
Step-by-step explanation:
-8
15
×
20
64
=
-8 × 20
15 × 64
=
-160
960
=
-160 ÷ 160
960 ÷ 160
=
– 1
6
so the answer is a
HELP PLEASE ASAP DUE IN 10 MIN ASAP PLEASEEEEE
Answer:
delete this
Step-by-step explanation:
Here is a representation showing the amount of red and blue paint that make 2 batches of purple paint. How many batches are made with 15 cups of red paint?
Answer:
Step-by-step explanation:
7
19. Jake thinks of a secret number. He says that his secret number is more than 6 units away from 2. Write a
compound inequality that gives the possible values of Jake's number. Graph the inequality.
what is the avrage of 4.1 ,6 ,1.3 6.5 ,1.6
Answer:
3.36
Step-by-step explanation:
4.1 +6 +1.3+6.5 +1.6=16.8
16.8/5=3.36
In order to get the answer you add everything up and then divide from the amount of numbers there are.
