Mathematics High School
Answers
Answer 1
this is 90 60 30 formula for example
90 meet 2x
30 meet x
and
60 meet x√3
so 90 meet 5
30 meet 5/2=2.5
and 60 meet 2.5√3
so the answer is 2.5
Answer 2
Answer:
2.5
Step-by-step explanation:
[tex]\sin 30\degree = \frac{x}{5}\\\therefore x = 5\sin 30\degree\\\therefore x = 5 \times \frac{1}{2}\\\therefore x = 2.5[/tex]
Related Questions
c
10 mm
24 mm
What is the length of the hypotenuse?
Answers
Answer:
26
Step-by-step explanation:
The Pythagorean Theorem states that a² + b² = c²
so, c = √(a² + b²)
10² + 24² = 676
√676 = 26
The average age of three girls is 37. One
girl is 28, another is 43. What is the
age of the Third girl
Answers
Answer 25
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
The average of [tex]x[/tex] values with is equal to the sum of all of those values divided by [tex]x[/tex].
Therefore, we have the following equation:
[tex]\frac{28+43+a}{3}=37,\\28+43+a=37\cdot 3,\\28+43+a=111,\\a=111-43-28=\boxed{40}[/tex]
If x = -3 evaluate the following expression
(x-2)(x+9)
________
x(x+5)
Answers
Answer:
Step-by-step explanation:
you have to substitute x with -3, so where you see x in the equation you write a -3 and calculate
[tex]\frac{(x-2)(x+9)}{x(x+5)} = \frac{(-3-2)(-3+9)}{-3(-3+5)} = \frac{-5*6}{-3*2} =\frac{-5}{-1} =5[/tex]
(75 points)
Find the frequency for each of these graphs. Write it in the form of
Frequency = 1 / period
Answers
Answer:
1st one: 1/12
2nd one: 1/14
3rd one: 1/7
Step-by-step explanation:
Find period (Just count how much it takes for the graph to repeat again)
1st one: 12
2nd one: 14
3rd one: 7
Frequency = 1/period
1st one: 1/12
2nd one: 1/14
3rd one: 1/7
PLZ mark brainliest if you find this helpful
35/49 - 3/7 in it's simplest form
Answers
Answer:
35/49 - 3/7 = 2/7
(Brainliest please!!!)
I’m very confused on all of these
Answers
Answer:
84/4
=21
52/2
=26
72/3
=24
75/5
=15
54/3
=18
68/4
=17
90/5
=18
84/6
=14
Step-by-step explanation:
Answer:
A is 42
B is 26
C is 24
D is 15
E is 18
F is 17
G is 18
H is 14
Someone help me ASAP!! Samantha is paid $12 for each sale she makes. s(x)=12x represent her today pay for any given day. How many sales does she have to make in order to make $60?
Answers
$60 divided by $12 = 5
Answer: 5 sales
An electrician needs 3/8 of a roll of electrical wire to wire each room in a house. How many rooms can he wire with 2 1/4 rolls of wire? Write your answer as a fraction or as a whole or mixed number.
Answers
Answer: 6 rooms
Step-by-step explanation:
3/8 rolls of wire are needed to wire a room in a house. If there are a total of 2¹/₄ rolls of wires, the number of rooms that could be wired is:
First convert to an improper fraction:
2¹/₄ = 9/4 rolls of wire
Total number of rooms that can be wired are:
= Total amount of wire available / Wires per room
= 9/4 ÷ 3/8
= 9/4 * 8/3
= 72 / 12
= 6 rooms
hello please help i’ll give brainliest
Answers
Answer:
The answer is 131
Step-by-step explanation:
Sarah wants to buy cupcakes and a pizza for a sleep-over party for herself and 5 friends. She has $24 to spend. The pizza costs $12.
How many cupcakes can she buy?
What is this problem about? What does it say?
What do you think the variable should represent? Why?
Clearly define the variable.
What words in the problem can you relate to math operations (add, subtract, multiply, divide)?
Write an equation that translates this word problem into Math language.
Solve the equation.
Is your answer reasonable? Check your answer.
Answers
1. $24-$12 = $12. she can buy 10 cupcakes, 2 for each person if they’re $1
2. this problem is about having enough money for cupcakes
3. The variable should represent money because that’s what we’re dealing with
4. variable- a symbol, object or letter in place for something else.
5. buy, spend, costs
In the circle shown below, AB= 30 and the length of the minor arc from
point A to point C is 40. Find the exact measure of the marked angle B in
terms of radians. Justify.
Answers
Answer:
4/3pi
Step-by-step explanation:
Length of an arc = r theta
Given radius r = 30
length of arc l = 40
Substitute
40 = 30theta
theta = 40/30
theta = 4/3 pi
Hence the angle marked B is 4/3pi
7. Jeremiah is going to the local arcade with $32 in his wallet to spend. He plans to bowl one game and play some arcade games. A game of bowling costs $11, the bowling shoe rental is $3.75, and the arcade games cost $0.75 each. Write and solve an inequality to find the number of arcade games Jeremiah can play.
Answers
Answer:
x < 25
Step-by-step explanation:
ayee
What is a possible third side to a triangle with side lengths of 13 and 4?
5
12
9
8
Answers
third possible side can be 12
it will become obtuse triangle
12.Simplify using property:
a) -65 × 102
b) -37 ×18 + -37 × 82
Answers
Answer:
a) -65 × 102 : -6630
b) -37 ×18 + -37 × 82 : -028337
Step-by-step explanation:
Step-by-step explanation:
a) -65 × 102 = (-65×100) +(-65×2)
= -6500-130
= -6,630
b) -37 ×18 + -37 × 82 =
-37(18+82) = -37(100) = -3,700
CHAD HAS 1/2 TON OF GRAVEL TO SPREAD EQUALLY IN 8 SQUARE YARDS FOR HIS DRIVEWAY. HOW MANY TONS OF GRAVEL WILL BE SPREAD IN EACH SQUARE YARD
Answers
Answer:
1/16
Step-by-step explanation:
½ ton ==> 8 sq. yards
so, each sq. yard needs ½ ÷ 8 = 1/16 ton
70 POINTS AND BRAINLIEST
Θ is in Quadrant III and cos^2 Θ= 1/4
In two or more sentences, explain how to find the value of cotθ.
Answers
Answer:
Step-by-step explanation:
since cos ^2 = 1/4 then cos = 1/2
b/c cot is tan inverted, then cot = cos / sin
so we also know that [tex]\sqrt{3}[/tex]/2 will be sin for this same Ф
then
cot = (1/2) / ( [tex]\sqrt{3}[/tex]/2 )
cot = 1 / [tex]\sqrt{3}[/tex]
since Ф is in quad III
we know both parts of the fraction will be negative
cot = -1 / -[tex]\sqrt{3}[/tex]
but we would normally write that as a positive
in which quadrant will the point lie if ordinate is 3 and abscissa is -7
send a image of solution
Answers
Answer:
2nd Quadrant
Step-by-step explanation:
ordinate = y cordinate
abcissa = x cordiante
(-7,3)
( -,+) lies in second quadrant)
Hope u understand
Please mark as brainliest
Thank You
PLEASE ASAP ILL GIVE BRAINLIEST.
Answers
I’m going to say the top one it seems like that would be correct
The answer is A, since the acceleration decreases that will make the car stop.
Need help solving this question
Answers
9514 1404 393
Answer:
a = 36
Step-by-step explanation:
A stationary point is where the function derivative is zero. Here, we have ...
y' = 2kx -16/x^2 = 0
For x = 2/3, this is ...
4/3k -16/(4/9) = 0
4/3k = 36
k = 27
Then the value of y at that point is ...
y = 27(2/3)^2 + 16/(2/3) = 12 +24 = 36
The stationary point of interest is (2/3, a) = (2/3, 36). a = 36.
Answer:
a =31
I think I'm not sure
please help! picture attached
Answers
Answer:
you on iready?
Step-by-step explanation:
Answer:
Can you reattac the picture because I can’t see it then I will be able to help u
Step-by-step explanation:
What is the mean amount raised by the students?
Answers
Step-by-step explanation:
[tex]mean = \frac{(25.25 + 17.50 + 4.75 + 45.00 + 33.50 + 11.70 + 23.80 + 38.00 + 17.75 + 14.25)}{10} \\ = 23.15[/tex]
You buy a video game and pay for it with a $50 bill. Write an expression that can be used to find out how much change you should receive.
Answers
Answer:
The answer is given below.
Step-by-step explanation:
Let us assume the cost of the video game be x
There should be two chances
The first one is
that the cost of the video game should be equivalent to the amount given
SO
The return is $0
The second one is
When the cost of the video game is less than the amount you pay
SO, the return change is
= $50 - x
How many free throws could you make out of 20
Answers
Awnser :
Ten
Explanation :
In a relaxed practice setting with no pressure, the average player should be able to make at least ten in a row. But free throws typically come in pressure situations, so managing the pressure is as important as practicing form.
help me with my math both question please
Answers
Answer:
whats the question...
Step-by-step explanation:
 what is the If-Then form of the following statement “you can go to the movies after you do your homework.”
a. if you do you homework then you can go to the movies
b. if you went to the movies then you did your homework
c. if you didn’t go to the movies then you didn’t do your homework
d. if you don’t do your homework then you can’t go to the movies
please help .
Answers
Ok, this is a bit tricky, it might be A or D.
A. Because 'you can go to the movies if you do your homeowork.)
B. Because it just flips things aroudn but it's still correct.
I would think the best choice would be A.
If this helps, please mark me Brainliest!
Have a fabulous day!
PLEASE HELP!!! I really need help with this question, so if anyone could spare a few min then thank you so much!! ;w;
Answers
Answer:
Hello! answer: -6
Step-by-step explanation:
Hope that helps!
A rectangular piece of paper with length 35 cm and width 14 cm has two semicircles cut out of it, as shown below.
Find the area of the paper that remains. Use the value 3.14 for it, and do not round your answer. Be sure to include the correct unit
Answers
Answer: 336.14 cm²
Step-by-step explanation:
To find the area of the rectangle after being cut, we want to find the area of the two semicircles and subtract it from the area of the rectangle. The area of the rectangle is just base times height, or 35cm times 14cm = 490cm² . Since there are two semicircles with the same diameter, we can just solve for the area of a circle and subtract it. To find the area of the circle, we need the radius, which we get by dividing the diameter by 2. After that, we calculate the radius to be 7cm, squared and multiplied by 3.14 (area of a circle) to get 153.86 cm². Subtract the areas, and we get 490 - 153.86 = 336.14 cm²
What is the perimeter of the triangle?
units
Answers
Answer:
32 units
Step-by-step explanation:
In the Point it is 8 and 8.
and the long part is 16 so add that and you get 16 plus 16 and that is 32 units.
You welcome.
So this isn't a question about math it's about grades so in my school 4 points are required to pass each grade and I have 4 points already in all my classes so does it really matter if I were to get a f this quarter since it's 4th for me
Answers
You should ask your counselor.
Answer:
If u already have 4 points that are required of you in that class you should still be able to pass
Step-by-step explanation:
urgent please help :)
Answers
Answer:
60
Step-by-step explanation:
if you look at it close the top shape is half of 12 so its 6 so nosubtract 6 from 18 and get 12 now add (18+12+6+6+12+6=60)