A true/false test has 30 questions. A passing grade is 78% or more correct answers.
a. What is the probability that a person will guess correctly on one true/false question?
Answer:
50%
Step-by-step explanation:
one question has 2 possible answers and 1/2 is 50%
Will name brainliest
Reasons must be from this list:
Reflexive property, segment bisector, angle bisector, linear pair, transitive property, perpendicular, SAS, ASA, CPCTC, AAS, HL, and SSS
Every word may not be used, but each may not be used more than once.
Step-by-step explanation:
ii) reflexive property
iii) AAS
6x4/12+72/8-9 using pemdas
Answer:
the answer is 2
Step-by-step explanation:
You do multiplication and division left to right first and then you add the two answers
Convert 451 degrees Fahrenheit to Celsius
Answer:
232.778
Step-by-step explanation:
Answer:
232.778 °C
Never forget your symbols.
Ms. jones wants to take her students for all of her classes on a field trip to see a Broadway production. There are three shows to choose from. She wants to determine which show students would like to see. which sample would be the most appropriate for this survey?
A: Every fifth student that enters her classroom
B: Her Honors class
C: 5 boys in each of her class
D: At the end of the day, ask teachers what they think student will like
Answer:
A
Step-by-step explanation:
Because it is a random sample
A circle with center P is shown. RS and ST are tangent to circle P. What is the degree measure of angle RST
Find the area of this triangle.
Round to the nearest tenth.
12 cm
33°
5.5 cm
[?] cm2
Answer:
1/2 ab sinC =1/2(5.5×12)sin33 = 17.97
Step-by-step explanation:
Put the numbers in the equation ,a calculator will be better.
The area of the triangle is 18.0cm².
What is the sine rule for the area of the triangle?The sine rule for the area of the triangle is defined as the area of the triangle that can be calculated by the product of the half of the two sides of the triangle and the sine of the angle between the two sides.
Area= Δ= (1/2)*a*b*sinC
where a and b are the length of the side BC and AC respectively. And angle C is the angle between the sides BC and AC.
Here given in the figure the triangle has two sides of lengths 12cm, and 5.5cm.
The angle between the sides is 33°.
Then using the sine rule for the area of the triangle
The area of the triangle= (1/2)*a*b*sinC
=(1/2)*12*5.5*sin 33°
=17.97≅ 18.0 cm²
Therefore the area of the triangle is 18.0cm².
Learn more about the sine rule
here: https://brainly.com/question/27174058
#SPJ2
Selena is a freelance graphic artist who charges $65 per hour for her services. A client paid her $195 for her last project. The equation below represents this situation.
65h = 195
For how many hours did Selena work on that project?
Answer: 3 hours
Step-by-step explanation:
195/65=3
Answer:
3
Step-by-step explanation:
$195 divided by $65 is 3 hours of work
how can you use the multiplicative inverse to solve division problems?
(best answer gets brainliest)
Answer:
Hello, the multiplicative inverse is just another name for reciprocal. You can use this type of method when dividing fractions like:
1/2/3/5
You use the method known as kfc, keep, flip, change like this:
1/2 x 5/3
Notice how 1/2 is kept the same, the division sign is now a multiplying sign, and 3/5 is flipped.
And then you just answer it from there and you get 5/6
Step-by-step explanation:
I hope this helped you!
8 over 15 as a decimal rounded to the nearest tenth.
Answer:1.9
Step-by-step explanation:
15/8=1.87500
Find the volume of the sphere in terms if the diameter is 15
Answer:
1767.14587
Step-by-step explanation:
V≈1767.15
V=4/3 π r³
d= 2 r
V= 1/6π d³ = 1/6.π.15³≈1767.14587
How many zeros are in the product 4 x 10 7th power
Answer:
7 or 40,000,000
Step-by-step explanation:
The exponent (^7) is how many zeros for the 10. if there is 10^2 its just 100 because it's 10 * 10 or 100 (notice the zeros in the 10 * 10 equation? yup, there's 2) and the 4 is basically 4 * 10, it changes the 10 like 4*1 but with a lot of zeros if there were exponents (10^2) so just put them together and you get 4 * 10^7
10^7 (its just 10 times itself 7 times) = 10,000,000
4 * 10,000,000 = 40,000,000
Hope this helps
~R3V0
If you plot the following points and connect the points in the order given, what picture have you created?
(-2,1), (-2,3), (3,3), (3,4), (5,2), (3,0), (3,1), (-2,1)
A
mountain peaks
B
an arrow
с
a kite
D
The letter T
-95, -17,-60-90, 67, 74, 27, 70
Mean
Median
Mode
Range
Pls help me atleast just give me the medium
Answer:
mean:-3
median:5
mode: all values appeared once
range:169
Step-by-step explanation:
The top two most profitable Fortune 500 companies in 2016 were Apple and JP Morgan Chase & Co. JP Morgan Chase & Co.'s revenue was $29 billion less than Apple's revenue. The total revenue for both companies was $77.8 billion.
Answer:
a. 53.4
b. 24.4
Step-by-step explanation:
a+j=77.8
j=a-29
a+j=77.8
-a+j=-29
2j=48.8
j=24.4
a+24.4=78.8
a=53.4
Alvin is 7 years younger than Elgas. The sum of their ages is 63. What is Elgas age?
Answer:
Elgas is 35.
Step-by-step explanation:
Let's set up an equation.
Alvin is 7 years younger than Elgas.
A = E - 7
The sum of their ages is 63.
A + E = 63
Let's use substitution.
Plug in the first equation of A into the second equation.
A + E = 63
(E - 7) + E = 63
Combine like terms.
2E - 7 = 63
Add 7 to both sides.
2E = 70
Divide both sides by 2.
E = 35
Elgas is 35.
Hope this helps!
There are 7 apples and 15 oranges in a fruit basket at the grocery store. What is the ratio of oranges to all fruit
Answer:
15:22
Step-by-step explanation:
15 oranges and 22 fruits in total
A bank account appreciates at a rate if 0.05%
Answer:
if this is a true or false question it would be false...
Step-by-step explanation:
each bank has different fees and percentage rates, hope this helps
AABC ~ AQRS
Find the missing side length, n.
R.
B
6
4
8
S
n
n = [?]
Enter
will give brainliest
Answer:
12
Step-by-step explanation:
6/4 is equal to 1.5, multiply that by 8 and you get 12
What is a fact family? (Saying "it's a family of facts" will not be accepted")
Answer: Fact families are 3 numbers that make up a set of related math facts
Step-by-step explanation:
.An example of a fact family for multiplication and division is 2, 3, and 6: 2 X 3 = 6, 3 X 2 = 6, 6 2 = 3, and 6 3 = 2.
Answer:
Step-by-step explanation:
A fact family is a set of subtraction and addition equations or sentences that involve the same numbers.
In the figure, the angles are formed by a transversal and two parallel lines. Which angles are congruent?
Answer:
A is your correct answer.
1, 3, 5, and 7 are equal to each other and 2, 4, 6, and 8 are equal to each other.
Step-by-step explanation:
Congruent angles are angles that have the same measure. In this example, where two parallel lines are cut by a transversal line, the angles in the same position on the top line and bottom line are congruent. For example, angle 1 and 5 are in the same position, so they have the same measure.
Also, vertical angles (opposite angles, like 5 & 7 in your example) have the same measure.
Please let me know if you have questions about this.
The perimeter of a playing field for a certain sport is 174 ft. The field is a rectangle, and the length is 45 ft longer than the width Find the dimensions.
The width of the playing field is 20 ft.
(Type an integer or a decimal.)
Answer:
21 ft by 66 ft
Step-by-step explanation:
From the question,
P = 2(L+W)............... Equation 1
Where P = Perimeter of the playing Field, L = Length of the playing Field, W = width of the playing Field.
If the Length of the Field is 45 ft longer than the width,
L = 45+W............ Equation 2
Substitute Equation 2 into equation 1
P = 2(45+W+W)
P = 90+4W............. Equation 3
Given: P = 174 ft.
Substitute into equation 3
174 = 90+4W
4W = 174-90
4W = 84
W = 84/4
W = 21 ft.
Substituting the value of W into equation 2
L = 45+21
L = 66 ft.
Hence the dimensions of the playing field is 21 ft by 66 ft
What is the quotient of 3 divided by 1/2.
Answer:
6
Step-by-step explanation:
3
===
1
----
2
Multiply numerator and denominator by 2
3 *2
===
1 * 2
----
2
The 2s in the denominator cancel
6/1 = 6 is the answer.
I need help with this I will mark you if you get it right
Answer:
I thinks its D have a nice day
Step-by-step explanation:
How to solve X2 + 2x -63
Answer:
Answer is -69
Step-by-step explanation:
-69 bc 69 is always correct
Answer:
( x − 7) ( x + 9 )
Step-by-step explanation:
Factor x 2 + 2 x − 63 using the AC method.
What is the mode of the data set ?
3,3,5,5,5,7,7,8,15,15
Answer:
5
Step-by-step explanation:
the mode is the number that appears most frequently on a data set.
Answer:
5
Step-by-step explanation:
A set of data already has the values 11, 14, 23, and 16. What value would have to be added to the set for the mean of the
five numbers to be 18?
08
12
18
26
You have a handfull of loonies and quarters in your hand. In total, there are 20 coins and the value of all of these coins equals $14.75. How many loonies and how many quarters do you have?
Answer:
You have 13 loonies and 7 quarters.
Step-by-step explanation:
Given that you have a handfull of loonies and quarters in your hand, and in total, there are 20 coins and the value of all of these coins equals $ 14.75, to determine how many loonies and how many quarters do you have the following calculation must be done:
Loonie = 1
Quarter = 0.25
1 - 0.25 = 0.75
20 x 0.25 = 5
14.75 - 5 = 9.75
9.75 / 0.75 = 13
13 x 1 + 7 x 0.25 = X
13 + 1.75 = X
14.75 = X
Therefore, you have 13 loonies and 7 quarters.
5 + x = 7.5 what is x?
Answer:
2.5
Step-by-step explanation:
Answer:
5 + x = 7.5
x = 7.5 - 5
x = 2.5
Step-by-step explanation:
•°•°•°•°•°•°•°•°•
Which term could be put into the blank to create a fully simplified polynomial written in standard form
Answer:
[tex]x^{2} y^{2}[/tex]
Step-by-step explanation: