Answer:
3/20
Step-by-step explanation:
From the above question,
The total number of balls = 20
Number of red balls = 6
Number of yellow balls = 10
Probability of picking a red ball with replacement = P(red) = 6/20
Probability of picking a yellow ball with replacement = P(yellow) = 10/20
The probability of picking a red golf ball, replacing it, and then picking a yellow golf ball is calculated as
P(red) × P( yellow)
= 6/20 × 10/20
= 3/10 × 1/2
= 3/20
The circumference of the circle shown below is 54 centimeters. Which
expression gives the length in centimeters of ?
х
120"
O A.
360
.. 545
120
y
ОВ.
120
360
54
O c.
360
-.54
120
O D.
120
• 545
360
Answer:
B
Step-by-step explanation:
120/360 54
Which set does not contain a rational number?
Answer:
[tex]\sqrt{21}[/tex], π, [tex]\sqrt{75}[/tex]
Step-by-step explanation:
this set contains only irrationals
Pls help, question on picture, will do brainliest if right
no links!!!!!
3/4
tan Ф = opposite/ adjacent
the number opposite to Ф is 15 and the number adjacent to Ф is 20 so 15/20=3/4
1
Ms. K. has $63 in her bank account. A store credit her account with a $15 refund. How much does she now have
in the bank?
Answer:
48
Step-by-step explanation:
FIND THE THE
MISSING ANGLE:
70°
30° -
HELP!!! answer quickly pls
Answer:
X-axis
Step-by-step explanation:
x-intercept of 5 and a y-intercept of -4.
Write this street's equation in slope intercept form.
Answer:
y = 5x -4 or you could also write y = 5x + -4
it's still the same thing.
Step-by-step explanation:
HELP DUE IN 5 MINS!
Solve for x in the polygon below.
x=??
Answer:
130
Step-by-step explanation:
(6-2)180=720
720-590=130
I need answer not links
Answer:
3
Step-by-step explanation:
3 is the A value.
PLZZZZZZZZZZ HELP ITS FOR A TEST!!!The question is in the blue, the way I want you to solve it is the second one
Riley took 5 tests in science. Each test had a different score. The mean score of the tests was 90%. The median score of the tests was 85%. Based on this information, select the two statements that must be true.
A: More than half of the scores were 85% or greater.
B: More than half of the scores were 90% or greater.
C: There were no scores less than 85%
D: There were no scores less than 90%
E: At least one score was exactly 85%
F: At least one score was exactly 90%
Answer:
A: More than half of the scores were 85% or greater.
E: At least one score was exactly 85%
Step-by-step explanation:
Here the 5 test would be taken in science so 85% would be the result of one of the test
Also 85% represent the median so it means there are 2 values more and 2 values less
So there are 3 results with 85% or greater
Hence, the option A and Option E is correc
And, the rest of the options are wrong
Answer:
A and E
Step-by-step explanation:
How many kilograms are equivalent to 450 grams?
Answer:
0.45
Step-by-step explanation:
Answer:
0.45 kg
Step-by-step explanation:
Please help.
See pic attached
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Answer:
400
Step-by-step explanation:
4/5 yo just times by a 100 to get your answer 400/500
3. Mrs. Lopez, a counselor at Round Rock High School. found that 18% of the students had a math class first period. If there are 800 students at the school, how many students are NOT in a math class for first period?
Answer:
656 students
Step-by-step explanation:
18% of 800 is 144, and 800-144= 656 :)
A recliner chair is normally $750 is discounted to $600. What is the percent discount?
Answer:
20%
Step-by-step explanation:
Discount = Original Price x Discount %/100
Discount = 750 × 20/100
Discount = 750 x 0.2
You save = $150.00
Final Price = Original Price - Discount
Final Price = 750 - 150
Final Price = $600.00
Answer:
20%
Step-by-step explanation:
Just multiply 750 by 20%, and you will get 150. Subtract and you will get 600. That means my answer is correct.
Good Luck!
52nd term of arithmetic sequence 5,9,13
Answer:
209
Step-by-step explanation:
the Nth term is 4n plus 1
substitute 52 into n
4 times 52 is 208
208 plus 1 is 209
Answer:
201
Step-by-step explanation:
52 (amount of terms) - 2 (terms shown other than 5) = 49 * 4 = 196 + 5 = 201
Evaluate the expression. 0.1×( – 0.9+ – 0.2÷ – 0.5) Write your answer as an integer or a decimal. Do not round.
The solution of expression [tex]0.1 \times (- 0.9 + - 0.2 \div - 0.5)[/tex] by using the BODMAS rule would be [tex]- 0.05.[/tex]
Used the concept of the BODMAS rule which states that,
The correct order in which to solve maths problems. Bodmas stands for B-Brackets, O-Orders (powers/indices or roots), D-Division, M-Multiplication, A-Addition, S-Subtraction.
Given that the expression is,
[tex]0.1 \times (- 0.9 + - 0.2 \div - 0.5)[/tex]
Solve the above equation by using the BODMAS rule,
[tex]0.1 \times (- 0.9 + - 0.2 \div - 0.5)[/tex]
It can be written as,
[tex]0.1 \times [- 0.9 + (- 0.2 \div - 0.5)][/tex]
[tex]0.1 \times [- 0.9 + 0.4][/tex]
[tex]0.1 \times - 0.5[/tex]
[tex]- 0.05[/tex]
Therefore, the solution of the expression is [tex]- 0.05.[/tex]
To learn more about the BODMAS rule visit:
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I need a step by step explanation but I’d be ok with the solution.
Answer:
169. (m^2)
Step-by-step explanation:
lets first look at the smaller box. 7 x 7 is 49 so we have that answer. then 7 x 20 is 120. add those together and you get 169.
Answer:
The area of the composite figure is 189 square meters.
Step-by-step explanation:
First, partition the composite figure into 2 distinct shapes: a rectangle and a square on the top.
The formula for finding the area is: A = lw, or Area = length * width.
Area for figure number 1 (the square): 7 * 7 = 49
Area for figure number 2 (the rectangle): 20 * 7 = 140
Now, just add up both figures' areas, and find the answer:
140 + 49 = 189
I hope this somewhat helped. Have a great day!
Given that a - b = 3 and ab=5, find, without the use of a calculator,
the value of a^2 +b^2?
Answer:
19
Step-by-step explanation:
a-b=3 ab=5
a²+b² = (a-b)²+2ab ( a general formula)
= 3²+2×5
=9+10 = 19
change 45% into decimal
Laura takes 80 steps to walk across her local park.
Laura's steps are 70 centimetres long.
Her sister Kara's steps are 80 centimetres long.
How many steps does Kara take to walk across
the park?
a. 45
b.56
c.70
d.80
Answer:
c. 70
Step-by-step explanation:
Laura’s steps are 70cm, and she takes 80 steps, which would give her a total length of 5600cm. Kara’s steps are 80cm, so we have to divide 5600cm by 80cm. This means Kara takes 70 steps to walk across the park.
Ben invests $4300 in two different accounts. The first account paid 7%, the second account paid 4% in interest. At the end of the year he had earned $247 in interest. How much was in each account?
Explanation
first account 7%= 7/100(247)
$17.29
second account 4%= 4/100(247)
$9.88
find the angles of a cyclic quadrilateral ABCD in Angle A = (4x+20 )^0 , Angle B = (3x+5 )^0 , Angle C =(4y)^0 , Angle D = (7y-5)^0
Answer:
<A = 120degrees
<B = 80degrees
<C = 60degrees
<D = 100degrees
Step-by-step explanation:
For a cyclic quadrilateral, the sum of the adjacent angle of the quadrilateral are equal, hence;
<A + <C = 180
<B + <D = 180
Substitute the given values
4x+20+4y = 180
4x+4y =1 60
x + y = 40 ...1
Similarly;
3x+5+7y - 5 = 180
3x+7y = 180 ....2
Solving simultaneously
x + y = 40 ...1 .....* 3
3x+7y = 180 ....2 ...... *1
__________
3x + 3y = 120 ...1 .
3x+7y = 180 ....2
Subtract
3y - 7y = 120 - 180
-4y = -60
y = 15
Since x+y = 40
x + 15 = 40
x = 40 - 15
x = 25
<A = 4x+20
<A = 4(25)+20
<A = 120degrees
<C = 180 - <A
<C = 180 - 120
<C = 60degrees
<B = 3x+5
<B = 3(25)+5
<B = 80degrees
<D = 180 - <B
<D = 180 - 80
<D = 100degrees
You throw a ball at a height of 5 feet above the ground. The height h (in feet)
of the ball after t seconds can be modeled by the equation h=-16tsqaured +44t +5
A. After how many seconds does the ball reach a height of 15 feet?
B. After how many seconds does the ball hit the ground? Round your answer
to two decimal places.
Answer:
A. After 2.5 sec and .25 sec the ball was at a height of 15 ft.
B. 2.86 sec is the time it takes to hit the ground
Step-by-step explanation:
A. let h = 15
then 15 = -16t^2 + 44t + 5
16t^2 - 44t + 10 =0
2(8t^2 - 22t + 5) = 0
2(2t - 5)(4t - 1) = 0
t = 5/2 = 2.5 or t = 1/4 = .25
After 2.5 sec and .25 sec the ball was at a height of 15 ft.
B. Let h = 0.
-16t^2 + 44t + 5 = 0
Use the quadratic formula to find t. (I will let you do that)
t = 2.85929... or t = -.10929...
t cannot be negative, so 2.86 sec is the time it takes to hit the ground
The answer of A is After 2.5 sec and 0.25 sec the ball was at a height of 15 ft and the answer of B is 2.86 sec is the time it takes to hit the ground.
A. let h = 15
What is the quadratic equation?
[tex]ax^2+bx+c=0[/tex]
a, b, c = known numbers, where a ≠ 0
x = the unknown
then 15 = -16t^2 + 44t + 5
16t^2 - 44t + 10 =0
2(8t^2 - 22t + 5) = 0
2(2t - 5)(4t - 1) = 0
t = 5/2 = 2.5 or t = 1/4 = 0.25
After 2.5 sec and 0.25 sec the ball was at a height of 15 ft.
B. Let h = 0.
-16t^2 + 44t + 5 = 0
Use the quadratic formula to find t.
t = 2.85929... or t = -.10929...
t cannot be negative, So 2.86 sec is the time it takes to hit the ground.
To learn more about the quadratic equation visit:
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HELP WILL MARK BRAINIEST NO LINKS!!
Answer:
length - 80
width - 80
Step-by-step explanation:
95*2 = 190
65*2 = 130
190+130 = 320
320/4 = 80
80 x 80 = 6400
95 x 65 = 6175
6400 > 6175
80 x 4 = 320 = both perimeters
In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If
3/4
of the drink is apple juice and
1/10
is orange juice then write the ratio of cranberry juice to apple juice to orange juice in its simplest form.
Answer:
3:15:2 is the simplest form
answer asap ----------------------
Answer:
BC ≈ 15.01
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan65° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{BC}{7}[/tex] ( multiply both sides by 7 )
7 × tan65° = BC , then
BC ≈ 15.01 ( to the nearest hundredth )
Calculaţi suma a trei numere naturale ştiind că: primul este egal cu produsul numerelor 31 şi 75, al doilea reprezintă din primul, iar al treilea reprezintă din diferenţa primelor două numere.
Raspundeti repede pls!Dau coroana!!!
Answer:
fartzzzzzzzzzzzzzzzzzzzzzz
Step-by-step explanation:
Answer:
DABABY CONVERTIBLE GANG :)
Dakota paid $48.60 for a new backpack, and this included an 8% sales tax. What is the price before tax.
Answer:
The price before sales tax was added was $9.72.
Step-by-step explanation:
48.60 x 0.8 = 38.88 (Sales tax price)48.60 - 38.88 = 9.72 (Price before sales tax)Someone please help