Answer:
90%
Step-by-step explanation:
Answer:
90%.
Step-by-step explanation:
50 is half of 100. 45 is half of 90.
So, 45 is 90% of 50.
Choose the angle that is supplementary to angle 2. (it's not angle 3 btw)
Answer:
Angle 1
Step-by-step explanation:
Supplementary = Two angles that has a sum of 180 degrees
Angle 1 + Angle 2 = 180 degrees
Find the 53rd term of the arithmetic sequence -12,-1,10
Answer:560
Step-by-step explanation:
Answer: 560
Step-by-step explanation:
Two students, Alice and Bob, forgot to put their names on their exam papers. The professor knows that Alice does well with probability 0.8, and Bob does well with probability 0.4, independently of each other. What is the probability that exactly one of Alice and Bob does well on the exam
Answer:
[tex]Probability = 0.56[/tex]
Step-by-step explanation:
Represent the probability that Alice does well with P(A), the probability that Bob does well with P(B).
So, we have:
[tex]P(A) = 0.8[/tex]
[tex]P(B) = 0.4[/tex]
Required
Determine the probability that only one of them do well
This event is represented as: (A and B') or (B and A')
Where B' means Bob does not perform well and A' means Alice does not perform well.
And:
[tex]P(B') = 1 - P(B)[/tex]
[tex]P(A') = 1 - P(A)[/tex]
So, the probability becomes:
[tex]Probability = P(A\ and\ B')\ or\ P(B\ and\ A')[/tex]
[tex]Probability = P(A) * P(B')\ +\ P(B)*P(A')[/tex]
[tex]Probability = P(A) * (1-P(B)) +\ P(B)*(1-P(A))[/tex]
[tex]Probability = 0.8 * (1-0.4) +\ 0.4*(1-0.8)[/tex]
[tex]Probability = 0.8 * 0.6 +\ 0.4*0.2[/tex]
[tex]Probability = 0.48 + 0.08[/tex]
[tex]Probability = 0.56[/tex]
Hence, the required probability is 0.56
Find the value of x and y in the diagram below.
A. X= 9/2, y = 9
B. x = 18, y = 9-13
C. X= 9/3, y = 4.5
D. = 6/3, y = 3/5
Answer:
D) x=6√3, y=3√3
Step-by-step explanation:
Given both triangles are 30-60-90 triangles, this means that the length of y will be 9/√3=√81/√3=√(81/3)=√27=3√3
This also means that x will be twice the length of y which means x=2y=2(3√3)=6√3
This means that the correct answer is D) x=6√3, y=3√3
Refer to the diagram below to understand where I got these lengths.
Does anyone know 3² + (12r2) - 16 / 4?
Answer:
=12r2+5
Step-by-step explanation:
3² + (12r2) - 16 / 4
9+12r2+−4
Combine like terms
(12r2)+(9+−4)
12r2+5
50 points! I need help fast! I hope mhanifa helps me! Random answers will be reported
Answer:
Q3. x = 20°, y = 30Q4. x = 30°, y = 4Step-by-step explanation:
Question 3The triangle is equilateral
Sides are equal, internal angles are 60°
The sides
y + 16 = 46y = 30The angles
60° - x = 180° - (80° + 60°)60° - x = 40°x = 60° - 40°x = 20°Question 4The bottom triangle is equilateral, the top triangle is isosceles
Sides
The equal sides of the isosceles triangle are equal with the sides of the equilateral triangle
5y = 20y = 4Angles
x + x = 60° as exterior angle of the isosceles triangle.2x = 60°x = 30°Hi all I am new here and I have this for you (Have fun )
Answer:
I have corrected the DB value calculation.
An item has a listed price of 35$ if the sales tax rate is 3% how much is the sales tax in dollars
Answer:
$1.05
Step-by-step explanation:
3% of 35 = 0.03 × 35 = 1.05
Will give brainliest
Answer:
A and D
Step-by-step explanation:
Answer:
A and D.
Step-by-step explanation:
The main property of rhombi is that they have all four congruent sides.
So the only two quadrilaterals with four congruent sides are A and D.
Simplify the expression:
- 3+ 40 - 80 ->
Answer:
-3 + 40 - 80 = -43
hope it helps
Rayna has 5 pounds of ground beef to make hamburgers for a picnic. Each hamburger uses 1/4 pound of ground beef. How many hamburgers can Rayna make?
1. Sprint PCS offers a monthly cellular phone plan for $39.99. It includes 450 anytime minutes and charges $.45 per minute for additional minutes. a. x represents __________________ (2 points) b. f(x) represents ___________________ (2 points) c. Write out your piecewise function, including the domain.
Answer:
[tex]f(x) = \left \{ {{39.99; 0 \le x \le 450} \atop {0.45x - 162.51; \ x>450}} \right.[/tex]
Step-by-step explanation:
Given
Charges: $39.99 for first 450 minutes
Charges: $0.45 for additional minutes
(a): What is x
x represents the total minutes
(b): What is f(x)
f(x) represents the total monthly cellular charges
(c): The piecewise function
For the first 450 minutes, the function is:
[tex]f(x) = 39.99;\ 0 \le x \le 450[/tex]
For additional minutes.
In (a), the total minutes is x.
So, we have:
Total Charges = Charges for first 450 minutes + Charges for additional minutes * (Minutes after 450 minutes)
[tex]Total\ Charges = 39.99 + 0.45 * (x - 450)[/tex]
[tex]f(x) = 39.99 + 0.45 * (x - 450)[/tex]
Open bracket
[tex]f(x) = 39.99 + 0.45x - 0.45 * 450[/tex]
[tex]f(x) = 39.99 + 0.45x - 202.5[/tex]
Collect Like Terms
[tex]f(x) = 0.45x+39.99 - 202.5[/tex]
[tex]f(x) = 0.45x-162.51[/tex]
The range of the above function is: x > 450.
So, the piecewise function is:
[tex]f(x) = \left \{ {{39.99; 0 \le x \le 450} \atop {0.45x - 162.51; \ x>450}} \right.[/tex]
A teacher wants to split 5 erasers between 2 students equally.
How many erasers will each student get?
Answer:
2.5
Step-by-step explanation
2 divided by five is 2.5
identify the quadrilateral (help pls)
Answer:
A) would be a parallelogram B) would a rectangle C) would be a trapezoid and D) would be a square
Step-by-step explanation:
what is 7/8 x 4/7 in simplest form?
The expression (7/8) x (4/7) simplified to its simplest form is 1/2.
To simplify the expression (7/8) x (4/7), you can multiply the numerators together and the denominators together, and then simplify the resulting fraction if possible.
(7/8) x (4/7)
= (7 x 4) / (8 x 7)
= 28 / 56
To simplify this fraction, we can divide both the numerator and the denominator by their greatest common divisor (GCD), which is 28:
28 / 56
= (28 ÷ 28) / (56 ÷ 28)
= 1 / 2
Therefore, (7/8) x (4/7) simplified to its simplest form is 1/2.
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Omari types 300 words in 6 minutes. How many words does he type in 2 minutes?
In 1 minute?
Answer:
50 words per minute.
100 words per 2 minutes.
Step-by-step explanation:
Hope this helps!
IN FACTORED FORM PLZ!!
DUE TONIGHT HELP!!! WILL MARK THE BRAINLIEST!!
Answer:
Step-by-step explanation:
y=(2x+3)^2(x-5)
What is the quotient and remainder of 55 divided by 4
Answer: 13, remainder : 3
Step-by-step explanation:
The quotient and remainder of 55 divided by 4 are 13 and 3 respectively.
We have to given that,
To find the quotient and remainder of 55 divided by 4.
We can divide it,
⇒ 55 ÷ 4
4 ) 55 ( 13
- 4
-------
15
- 12
---------
3
Hence, We get;
After divide,
Quotient = 13
Remainder = 3
Therefore, the quotient and remainder of 55 divided by 4 are 13 and 3 respectively.
Learn more about the divide visit:
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PLS HURRY
Use the protector to measure the angle.
Answer:85
Step-by-step explanation:
Help me quick I need a good grade
evaluate 9.3s+8.9t when s=3 and t=4
Answer:
63.5
Step-by-step explanation:
9.3(3)+8.9(4) = 63.5
substitute the values (s and t) with the given numbers (3 and 4.)
Answer:
63.5
Step-by-step explanation:
4. Consider the mailbox shown below. It consists of a square prism for the main pole, a rectangular prism for the main box and half a cylinder for top portion. You are going to provide the dimensions for each of these parts. When you provide the dimensions, they must meet the following criteria:
Use these dimensions to determine the overall volume of the mailbox. This should include both the pole, main box and cylindrical top portion. If necessary, use 3.14 for π and round your answer to the nearest hundredths.
Answer:
Too many answers could be correct
Step-by-step explanation:
This one is hard because it will depend on what numbers you pick for each measurement.
-----------------------------------------------------------------------------
if a = 1, b = 2, c = 3, d = 4, and e = 5
find the volume for all the shapes
The post
V = lwh = (1)(1)(2) = 2
The bottom of the mailbox
V = lwh = (3)(4)(5) = 60
The top of the mailbox
V = πr²h = (3)(5)π = 15π = 48.2
Then add them all together:
2 + 60 + 48.2 = 110.2 is the total Volume
How many division facts can you write to represent the factors of 15?
Answer:
4 division facts
Dominic earns $15 an hour working at a movie theater. last week he worked h hour at the concession stand and three times as many hours at the ticket counter. how much did Dominic earn last week
Answer:st week he worked h hours at the concession stand and three times as many hours at the ticket ... How much did he make before the raise? ... Alice earns 1.5 times her hourly rate for each hour she works after 40 hours in a week. ... Dominic earns $18 an hour plus $25 an hour for every hour of overtime.
Step-by-step explanation:
Find mZB in the parallelogram.
B
С
51°
A
D
7
mZB=
Answer:
plzz show me the diagram otherwise I can't help you sorry!!!!
PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!
Abby was decorating her room. She arranged 56 picture tiles on a wall in the shape of a rectangle. How many rows of tiles could she have on the wall?
Answer:
14
Step-by-step explanation:
A rectangle has four sides so all you have to do is 56÷4
Answer:
14
Step-by-step explanation:
I was Slightly confused But with the given information
Divide 56 and 4...
Alex ate 1/3 of a pizza. Katelyn ate 2/7 of the same pizza. How much larger of a portion did Alex eat than Katelyn?
Answer:
1/21
Step-by-step explanation:
1/3 - 2/7 = 7/21 - 6/21 = 1/21
Hope I helped!
Help me pls I don't understand
There are 6 fourth-grade students, 8 fifth-grade students, and 10 sixth-grade students on the girls’ soccer team at Truman Elementary School. What is the ratio of all students to fourth-grade students? Use a proportion to solve.
Answer:
Your answer is
Fourth grade student = 25%
Fifth grade= 33.33%
Sixth grade= 41.67%
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HELP FAST PLS ILL LOVE U FOREVER <3 Angle ABC is 47 degrees. What is the the measure of angle CBD?
Answer:
43
Step-by-step explanation:
we know that ABC and CBD need to add up to 90 so we have
47+CBD=90
CBD=43
Answer:43Step-by-step explanation: if angle ABD is 90 degrees, and abc+cbd=ABD then ABD-ABC=CBD 90-47=CBD which is 43