Answer:
ECB and CDE
Step-by-step explanation:
the others arent the same
A bag of marbles has 4 Red and 3 Green marbles. You pick from the bag, replace the marble and then pick again. What is the probability of picking red both times?
A. 16/49
B. 12/42
C. 4/7
HELP ME PLEAASE ITS URGENT!!! WILL GIVE BRAINLIEST
On a test, Marcus is asked to simplify . Here is his work:
√128 = √16 · √8 = 4√8
Which statement best describes Marcus' answer?
He is incorrect because 16 times 8 is not 128.
He is incorrect because he did not use the largest perfect square.
He is incorrect because the 4 and the 8 should be switched around in his answer.
He is correct.
Answer:
He did not use the largest perfect square
Step-by-step explanation:
4 [tex]\sqrt{8}[/tex] is the correct answer
What is square root ?
In mathematics, a square root of a number x is a number y such that y² = x; in other words, a number y whose square is x. For example, 4 and −4 are square roots of 16, because 4² = ² = 16. The square root of any number can be expressed using the formula: √y = y½. In other words, if a number has 1/2 as its exponent, it means we need to find the square root of the number.
Given,
[tex]\sqrt{128}[/tex]
we divide the number 128 by 2 four times, we get
= [tex]\sqrt{8*2*2*2*2}[/tex]
= 2*2[tex]\sqrt{8}[/tex]
=4 [tex]\sqrt{8}[/tex]
Therefore, 4 [tex]\sqrt{8}[/tex] is the correct answer
Read more about square root at:
https://brainly.com/question/1387049
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NEED HELP ASAP!!!!!!!!
A linear function has a slope of 11/3 and crosses the y-axis at -9. What is the equation of the line?
Answer:
B.
Step-by-step explanation:
What is the y-intercept?
What’s the slop.? What is the equation of the line?
y intercept= -4
slope=1
equation= y=x-4
Answer:
Y intercept= -4
Slope= 1
Step-by-step explanation:
plz ive been stuck on this for an hour plzzz help?
Answer:
X=-8
Step-by-step explanation:
2 #7&"8*_8-*'7&-$(7
X<-8
On the number line, put the dot at -8 and shade to the left.
Clarissa sells handmade bracelets for each. The graph below shows her profits after expenses.
What does the point represent?
Answer:
Someone for real deleted my answer just because they got mad that I said theres no graph, I'm dead IMAO XD
Step-by-step explanation:
Answer:
where's the graph?
Step-by-step explanation:
Find the value of x
3x + 40
5x - 45
3x + 40 = 5x - 45
2x = 85
x = 42.5
Answer:
☆<《HOPE IT WILL HELP YOU 》>☆
Step-by-step explanation:
3x + 40
3x+40=0
3x= -- 40
x= -- 40/3
5x--45
5x--45=0
5x= 45
x =45/5
x = 9
find the absolute value
Answer:
3
Step-by-step explanation:
I need help with 29 and 30
Answer:
29 is 1.50 i think
Step-by-step explanation:
Answer:
Area is 0.15. Measure ratio is 1:2.
Step-by-step explanation:
Area is length x width.
60 degree angle is half of 120 degree angle.
steps for 540 + 6x = 810
Answer:
x = 45
Step-by-step explanation:
[tex]540 + 6x = 810[/tex]
Step 1 : Collect like terms
[tex]6x = 810 - 540[/tex]
Step 2 : Simplify
[tex]6x = 270[/tex]
Divide both sides of the equation by 6
[tex] \frac{6x}{6} = \frac{270}{6} [/tex]
Step 4 : Simplify
[tex]x = 45[/tex]
I hope it helps :)
Answer:
Well...X=45
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation:540+6*x-(810)=0
Pull out like factors :-270 + 6x = 6 • (x - 45)
Solve : x-45 = 0::
Add 45 to both sides of the equation: x = 45
I need help with 2,3,and 4!!!!!!!!
Answer:
Step-by-step explanation:
0_0 ni idea yo hablo español y me aparece todo en ingles
It costs $11.50 to rent a canoe and $5.50 to use the canoe for an hour. You have $28. Write an equation that represents the number h of hours you can rent the canoe
Answer:
(28 - 11.5) ÷ 5.5
Step-by-step explanation:
So let's examine this question.
We have already payed $11.50 the rent the canoe, so we have $16.50. Divide that by $5.50, and you get 3. So, 3 hours.
Now for the expression.
You start out with $28. You subtract $11.50 from it because it is being used to rent the canoe. You then divide your answer by $5.50 to determine how many hours you can use the canoe for.
Hmm.
(28 - 11.5) ÷ 5.5 = h
(28 - 11.5) ÷ 5.5 = 3
PETS Last month, Hao's dog ate 40 cans
of dog food in 31 days. How many cans
should Hao buy to feed his dog for the
next 6 days?
Answer:
8 cans
Step-by-step explanation:
Answer:
8 cans
Hope I helped
please help asap!!
Which of the following choices will evaluate -(x^2), when x = -3?
a. 9
b. -9
c. -6
d. None of these choices are correct.
Answer:
d
Step-by-step explanation:
PLEASE HELP I DONT UNDERSTAND THIS AT ALL. IM CRYING. HELP ASAP!!!
Find the slope of the line that passes through the pair of points.
A(5, 4), B(8, –8)
a) 1/4
b) 4
c) –4
d) -1/4
Answer:
C. -4
Step-by-step explanation:
A ratio is a comparison of ____ numbers or measurements
Answer:
the answer is: "a ratio is a comparison of two numbers or measurements
A rocket is launched from the launch pad at a speed of 700 km/hr. How far will the rocket have traveled after 1.0 hr?
Step-by-step explanation:
The answer is
Distance is 42000 kmph
The distance the rocket has traveled after 1 hour with a speed of 700km/hour is 700 km.
Given,
A rocket is launched from the launch pad at a speed of 700 km/hr.
We need to find how far will the rocket has traveled after 1.0 hr.
What is speed?Speed is the ratio of distance per time.
Speed = Distance /Time
Its unit is km/hour or m/second.
We have,
Speed = 700 km/h
Distance = D
Time = 1 hour
From the speed formula:
Speed = Distance / Time
700 = Distance / 1
700 km / hour x 1 hour = Distance
Distance = 700 km
Thus the distance the rocket traveled after 1 hour with a speed of 700km/hour is 700 km.
Learn more about relative speed here:
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Find each unit rate. Round to the nearest tenth if necessary.
200 meters in 34 seconds
Answer:
60
Step-by-step explanation:
2-10x=-8x-8 helpppp pleaseeee
Answer:x=5
Step-by-step explanation:1 step subtract 2 from both sides 2 step:simplify 3 step: add 8x to both sides 4 step: simplify 5 step: divide both sides by -2 6step: simplify x=5
The positive square root of 60 is not an integer. Which whole number does the value 60 lie closest to?
Answer: 6 and 7
Step-by-step explanation:
What is the equation of this line?
Answer:
2x - y = 0
Hope this helps
Answer:
y=2x
Step-by-step explanation:
when x =1,2,3 y=2,4,6 respectively so
y is the double of x
y=2x
hope it helps
A plumber charges $50 to visit a house plus $40 for every hour of work. Write an expression to represent the total cost of hiring a plumber.
Let h = number of hours
Answer:
x = 50 + 40h
Step-by-step explanation:
you're welcimd
What is -5 5/8 + 3 1/2?
Answer:
-17/8
Step-by-step explanation:
HELLLPPPP ASAP. Explain how to find the product of 3/8 x 7/9. Use complete sentences in your answer.
Answer:
7/24
Step-by-step explanation:
you times the numerators together and times the denominators together then you simplify
I need to Know this Please.
Answer:
The last one is the answer
Kalie pays $9.24 for 11 pounds of flour. What is the price per pound of flour?
Answer:
$0.84, 84 cents per pound.
Step-by-step explanation:
I hope that this helps. Have a good day!!
9.24 ÷ 11 = 0.84
Lisa finds a treasure chest full of 1000 jewels: 600 emeralds, 300 sapphires, and 100 rubies. She stuffs her pockets full of jewels completely at random, but they can only hold 100 jewels. What is the probability that all 100 jewels she took were sapphires?
Given:
Total number of jewels = 1000
Emeralds = 600
Sapphires = 300
Rubies = 100 rubies
100 jewels she took randomly.
To find:
The probability that all 100 jewels she took were sapphires.
Solution:
Number of selected jewels = 100
Total number of jewels = 1000
We have to select 100 out of 1000.
So, the total number of outcomes [tex]=^{1000}C_{100}[/tex]
Number of sapphires = 300
We have to select 100 out of 300 sapphires .
So, the favorable outcomes [tex]=^{300}C_{100}[/tex]
Now,
[tex]\text{Required probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}[/tex]
[tex]\text{Required probability}=\dfrac{^{300}C_{100}}{^{1000}C_{100}}[/tex]
Therefore, the required probability is [tex]\dfrac{^{300}C_{100}}{^{1000}C_{100}}[/tex].
Helppp!!! This has to be done by 8!!! And it’s 7:45!!
Answer:
The constant of porportionality is k = 12.5; the equation that describes the relationship is y = 12.5x.
Step-by-step explanation:
When you divide the miles by the hours, it's always 12.5, meaning that k must be 12.5.
If x is the hours and k is 12.5, the equation that describes the relationship is y = 12.5x.
The lengths of the ſides of a triangle are 2x,x+4, and 13 inches. If the perimeter of the
Triangle is 35 inches, what is the value of x?
Please show work if possible! Will mark brainliest!
Answer:
Perimeter = A + B + C
Perimeter = 35
A = 2x
B = x+4
C = 13
35 = A + B + C
Step-by-step explanation:
35=2X+X+4+13
SUBTRACT 17 FROM EACH SIDE
18+3X
DIVIDE EACH SIDE BY THREE
X=6
THEREFORE,THE SIDES ARE 12, 10 AND 13
12+10+13=35
Fully simplify the expression-3xy/6x
Answer:
-1xy
-------
2x
Step-by-step explanation:
divide all by 3
Answer:
−1/2x^2y
Step-by-step explanation: