Answer: Hello there!
initially Maria has 6 red marbles, 6 blue marbles, and 4 green marbles.
You know that in the first pick, Maria gets a green marble ( this means that now there are 3 green marbles left)
Now we want to know the probability that she gets a red marble on the second pick.
Now there are 6 + 6 + 3 = 15 marbles in the bag, and 6 of them are red ones. Then the probability of getting one red is the number of red ones divided by the total amount ( which is the ratio of red marbles to total marbles)
this is 6/15.
now you can see that there is no 6/15 in the options, so we need to see which one is equivalent.
if we took the option C, 2/5, and multiply both denominator and numerator by 3, we get (3*2)/(3*5) = 6/15, then 2/5 and 6/15 are equivalents.
Then the correct answer is C.
Step-by-step explanation:
SOMEONE SMART PLEASE HELP!! use the Pythagorean theorem to find x
Answer:
i am smart
Step-by-step explanation:
you have to divide the 4squareroot2 by 5squareroot2 to get x
Answer:
using pythagoras theorem
H^2=P^2+B^2
h=5[tex]\sqrt{2}[/tex] and let P=4[tex]\sqrt{2}[/tex] and B=x
so,
(5[tex]\sqrt{2}[/tex])^2=(4[tex]\sqrt{2}[/tex])^2+[tex]x^{2}[/tex]
50=32+[tex]x^{2}[/tex]
50-32=[tex]x^{2}[/tex]
18=[tex]x^{2}[/tex]
[tex]\sqrt{18}[/tex]=x
3[tex]\sqrt{2}[/tex]=x
Step-by-step explanation:
6. Side AC = 10 in; Side BC = 8 in What is the length of Side AB?
Answer:
is it a right angle?
if yes then do u gotta find the hypotenuse or the leg?
$2.95+$3.09+$5.85+$4.10
Step-by-step explanation:
the value of P(B|A)P(B∣A), rounding to the nearest thousandth
A can is 7 inches high and has a radius of 2 inches.
P2 in
7 in
Enter the volume, in cubic inches, of the can. Round your answer to the nearest hundredth.
9514 1404 393
Answer:
87.96 in³
Step-by-step explanation:
The volume is given by the formula ...
V = πr²h
Using the given numbers, we find the volume to be ...
V = π(2 in)²(7 in) = 28π in³ ≈ 87.96 in³
could someone help please ??
Answer:
i think it's 0.66666666666 or 1.5
Answer:
The quotient is 1.5.
Step-by-step explanation:
How many solutions can be found for the equation 5x + 3(x − 1) = 10x − 2x − 3?
None
One
3. Two
4. Infinitely many
Answer:
4. Infinitely many
Step-by-step explanation:
5x + 3(x − 1) = 10x − 2x − 3
5x+3x-3=8x-3
5x+3x-8x=3-3
0=0
x∈R
According to a June 12 invoice, George's Grocery Store owes $11,250 to Crane Food Services. The sales terms are 5/10, 3/15, n/30. Find the cash discount if the invoice is
paid on June 26.
$328.75
$337.50
$445.80
$562.50
None of these choices are correct.
Answer:
$337.50
Step-by-step explanation:
Given that
The amount is $11,250
And, the sales terms are 5/10, 3/15, n/30
5/10 means if the payment is done within 10 days so 5% discount is given
3/15 means if the payment is done within 15 days so 3% discount is given
And, n/30 means the credit days for payment allowed is 30
Now the cash discount if the invoice is paid on June 20 is
= $11,250 × 3%
= $337.50
I need help with this math problem!
Answer:
C and E
Step-by-step explanation:
Answer:
I believe that the answer is
C and E
Use the given information to find the minimum sample size required to estimate an unknown population mean μ.
How many students must be randomly selected to estimate the mean weekly earnings of students at one college? We want 95% confidence that the sample mean is within $4 of the population mean, and the population standard deviation is known to be $25.
Answer:
151 students must be selected.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
The population standard deviation is known to be $25.
This means that [tex]\sigma = 25[/tex]
How many students must be randomly selected to estimate the mean weekly earnings of students at one college? Sample mean within $4 of the population mean
This is n for which M = 4. So
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]4 = 1.96\frac{25}{\sqrt{n}}[/tex]
[tex]4\sqrt{n} = 1.96*25[/tex]
[tex]\sqrt{n} = \frac{1.96*25}{4}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96*25}{4})^2[/tex]
[tex]n = 150.1[/tex]
Rounding up:
151 students must be selected.
Sydney is going to a carnival that has games and rides. Each game costs $1.25 and
each ride costs $2.25. Sydney spent $24.25 altogether at the carnival and the number
of rides she went on is 3 more than the number of games she played. Determine the
pumber of games Sydney played and the number of rides Sydney went on.
Sydney played
games and went on
rides rides.
Answer:
Sidney played 5 games and rode 8 rides.
Step-by-step explanation:
Since Sydney is going to a carnival that has games and rides, and each game costs $ 1.25 and each ride costs $ 2.25. Sydney spent $ 24.25 altogether at the carnival and the number of rides she went on is 3 more than the number of games she played, to determine the number of games Sydney played and the number of rides Sydney went on the following calculation must be performed:
5 x 2.25 + 2 x 1.25 = 11.25 + 2.50 = 13.75
6 x 2.25 + 3 x 1.25 = 13.50 + 3.75 = 17.25
7 x 2.25 + 4 x 1.25 = 15.75 + 5 = 20.75
8 x 2.25 + 5 x 1.25 = 18 + 6.25 = 24.25
Therefore, Sidney played 5 games and rode 8 rides.
Answer:
Syndey played 5 games and rode 8 rides
Step-by-step explanation:
It's correct.
PLEASE HELP TIMED---
A basket of sports equipment has 10 baseballs, 2 footballs, and 4 basketballs. A ball is randomly drawn from the basket before another ball is drawn, with no replacement.
What is the probability that a baseball and then a football are selected?
Enter your answer as a fraction in simplest form in the box.
Answer:
6/10
Step-by-step explanation:
i think sorry if incorrect
Answer:
The correct answer is [tex]\frac{1}{12}[/tex]
Step-by-step explanation:
I know everyone says this but I just took the test and I got it right :)
Pinto
Ans: 405 cm
(c) यदि एउटा गोलाको आयतन 4851 घन से.मि. छ भने
यसको व्यास निकाल्नुहोस् । (If the volume of a sphere is
4851 cubic cm find its diameter.)
Ans: 21 cm
Answer:
उत्तर:
गोलाको आयतन :4851 cm³
⁴/3 πr³=4851
r³=4851×3×7/(22*4)
r³=1157.625
r=[tex] \sqrt[3]{1157.625} [/tex]
r=10.5
अब
गोलाको व्यास=2×r=10.5*2=21cm.
Find the distance from A to C across the gorge illustrated in the figure.
The distance from A to C is ___ feet.
Step-by-step explanation:
tan B = AC/BC
tan 35°= AC / 160
0.700 = AC /160
=> AC = 160 × 0.700
AC = 112.00
so, the distance from A to C is 112.00 feet
From the triangle given in the figure,
ΔACB is a right triangle.Measure of angle ABC = 35°Measure of adjacent side BC = 160 ftSince, adjacent side BC of the right triangle ACB is given and we have to find the opposite side AC of angle ABC,
Trigonometric ratio to be used → [tex]\text{tan}\theta = \frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
By substituting these values in the expression,
[tex]\text{tan}(35^{\circ}) = \frac{AC}{160}[/tex]
AC = 160[tan(35)°]
AC = 112.03 feet
Therefore, distance between A and C is 112.03 feet.
Learn more,
https://brainly.com/question/10675333
What is the correct ratio?
math 20
Answer:
7/24
Step-by-step explanation:
tan = opp/adj
opp = 7
adj = 24
hyp =25
Ms. Nellies has 2 pints of vinegar for her students to use in a science experiment. Each
group of students needs pint of vinegar. Trey draws the number line model and writes the
equation below to help Ms. Nellies figure out how many 3-pint servings of vinegar she has.
Are Trey's number line model and equation correct?
《十
0
1
2
23 = = 3
Click the arrows to choose an answer from each menu.
Trey's number line model is Choose... because it represents the expression
Choose... The correct equation is choose...
Ms. Nellies has enough
vinegar for Choose... groups of students.
My Progress >
Mk
Answer:
b
Step-by-step explanation:
Plssssssssss help me plsss and thxxxxxxxx
Answer:
B) 264 units²
Step-by-step explanation:
Figure 1:
A = 1/2BH
A = 1/2 12(4)
A = 1/2 48
A = 24
Figure 2:
24 - 4 = 20
20 x 12 = 240
Total area:
240 + 24 = 264
Is anyone good at geometry? I need help. I don't understand this stuff
HI = 15
Step-by-step explanation:
Since the two triangles are similar, the ratio of their legs are equal.
HI/25 = 3/5
Solving for HI,
HI = (3/5)×25
= 15
the volume of 12 buckets is the same as the volume of 9 bottles. the total volume of 3 bottles and 5 buckets is 21.6 liters. what is the volume of 1 bucket?
Answer:
The volume of 1 bucket is 2.4 liters.
Step-by-step explanation:
We know that the volume of 12 buckets is the same as the volume of 9 bottles:
[tex] 12B = 9b [/tex]
[tex] B = \frac{9}{12}b = \frac{3}{4}b [/tex] (1)
Where B is for buckets and b is for bottles.
Also, that the total volume of 3 bottles and 5 buckets is 21.6 liters:
[tex] 5B + 3b = 21.6 [/tex] (2)
We can calculate the volume of 1 bucket by entering equation (1) into (2):
[tex] 5(\frac{3}{4}b) + 3b = 21.6 [/tex]
By solving for "b" we have:
[tex] b = \frac{21.6*4}{27} = 3.2 [/tex]
Now, the volume of 1 bucket is:
[tex] B = \frac{3}{4}b = \frac{3*3.2}{4} = 2.4 [/tex]
Therefore, the volume of 1 bucket is 2.4 liters.
I hope it helps you!
y = 3/5x + 5
y = -3/5x + 5
y = 3/5x - 5
y = -3/5x - 5
Answer:
y= 3/5x+5
Step-by-step explanation:
The y intercept is 5 and the graph is going upwards so it is a postive slope. If you look at at the graph from the y intercept point to point B you can see it goes up by 3 and right by 5 so the slope is 3/5. This makes the equation y=3/5x+5
A local dog shelter has 12 dogs and 8 cats up for adoption. What fraction of the pets are dogs, what percent are cats?
If anyone can figure this out tysm
Describe how to use a conversion factor to convert units. PLEASE HELP DUE TONIGHT
Answer:
A conversion factor is a number used to change one set of units to another, by multiplying or dividing. When a conversion is necessary, the appropriate conversion factor to an equal value must be used. For example, to convert inches to feet, the appropriate conversion value is 12 inches equal 1 foot.
Step-by-step explanation:
solve these equations, show all your work x-2=10 and x+6=13
Answer:
x = 12 , x = 7
Step-by-step explanation:
x-2 = 10
x= 10+2 = 12
x+6 = 13
x=13-6
x=7
Answer:
x = 9.5
If they were separate equations,
x - 2 = 10 ⇒ x = 12
x + 6 = 13 ⇒ x = 7
Step-by-step explanation:
x - 2 + x + 6= 10 + 13
2x + 4 = 23
2x + 4 - 4 = 23 - 4
2x = 19
2x ÷ 2 = 19 ÷ 2
x = 9.5
If they were separate,
x - 2 = 10
x - 2 + 2 = 10 + 2
x = 12
x + 6 = 13
x + 6 - 6 = 13 - 6
x = 7
1.
Can the three side lengths make a triangle? 14, 7, 8
O a) Yes
Ob) No
PLEASE HELPPPP
Answer:
Yes
Step-by-step explanation:
For three side lengths to make a triangle, the two smaller lengths have to add up to be greater or equal to the largest side length.
since 7+8=15, and 15>14, the answer is yes.
1/6 divided by 1/2 as a reduced fraction
Answer:
1/3
Step-by-step explanation:
1/3
Step-by-step explanation:
1/6 ÷ 1/2
Copy dot flip
1/6 * 2/1
Multiply
2/6
Reduce
1/3
How many solutions are in 5x^2+3x+2=0
i need help with this asap pleaseee!!!!! it’s area and perimeter of rectangle parallelograms
Answer:
See explanation
Step-by-step explanation:
1. p 28
a 48
2. p 60
a 221
3. p 62
a 168
4. p 22
a 24
5. p 132
a 968
6. p 16
a 16
Please help me with this, its due today
Answer:
43 is answer
Step-by-step explanation:
65+x+2+70=180
137+x=180
x=43
Please help :D!!!!! And explain
9
Reduce to its lowest term.
36/100
Answer:
9/25
Step-by-step explanation:
Answer it plssss........
Answer:
A
Step-by-step explanation:
Because x has the degree one and it’s figure at the numerator