The question is about trigonometry solving two sides it is a right triangle hypotenuse is X left side is 20 bottom side is 21 i need to find X and what degrees is angle A and B and C is already 90 degrees please help!!
Answers
Answer:
x = 29
Angle A = 46.4°
Angle B = 43.6°
Step-by-step explanation:
Since it is a right angle triangle, we can find x from pythagoras theorem;
x = √(20² + 21²)
x = √(400 + 441)
x = √841
x = 29
Using trigonometric ratios we can find angles A and B.
Opposite is 20
Adjacent is 21
Thus; opp/adj = tan B
20/21 = tan B
B = tan^(-1) 0.9524
B = 43.6°
Sum of angles in a triangle is 180°. Thus;
A = 180 - (90 + 43.6)
A = 46.4°
Related Questions
A girl is selling girl scout cookies. Her goal is to sell 120 boxes. She has already
sold 36 boxes. what percent of her goal has she sold? do not put the % sign in
your answer please.)
Answers
Answer:
70
Step-by-step explanation:
let me know if its correct plz :)
Sam's dad gave him $30 for washing their car. He used the money to buy a basketball for $7.50 and three sports drinks for $2.75 each. Sam also bought a bag of candy. If Sam went home with 13 of the money his dad gave him, how much did the bag of candy cost?
Answers
Answer:
Basketball + Sports Drink
$7.50 + $2.75 = $10.25
$10.25 + ? + $13 = $30
30 - 23.25 = 6.75
A 2 column table with 5 rows. The first column, x, has the entries, 0, 1, 2, 3. The second column, y, has the entries, negative 6, negative 4.5, negative 3, negative 1.5. A 2 column table with 5 rows. The first column, x, has the entries, 0, 1, 2, 3. The second column, y, has the entries, 6.1, 2.1, negative 1.9, negative 5.9.
Complete the statements about the system of linear equations represented by the tables.
The equation representing the left table is
.
The equation representing the right table is
.
The solution to the system of equations is
Answers
Answer:
The equation representing the left table is:
y = 1.5x – 6
The equation representing the right table is:
y = –4x + 6.1
The solution to the system of equations is:
(2.2, –2.7)
Equation representing the left table is y=1.5x-6, Equation representing the right table is y=-4x+6.1 and solution is (2.2, -2.7).
What is slope intercept form of line?The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The first table is
x y
0 -6
1 -4.5
2 -3
3 -1.5
Slope = -4.5+6/1
=1.5
Now let us find y intercept
-6=1.5(0)+b
-6=b
So the equation representing the left table is y=1.5x-6
Now let us find second table
x y
0 6.1
1 2.1
2 -1.9
3 -5.9
m=2.1-6.1/1=-4
Now y intercept
2.1=-4+b
b=2.1+4
b=6.1
Equation representing the right table is y=-4x+6.1
Now equate two equations
1.5x-6=-4x+6.1
1.5x+4x=6.1+6
5.5x=12.1
x=12.1/5.5
x=2.2
and y=-4(2.2)+6.1
y=-8.8+6.1
y=-2.7
Hence, equation representing the left table is y=1.5x-6, Equation representing the right table is y=-4x+6.1 and solution is (2.2, -2.7).
To learn more on slope intercept form click:
https://brainly.com/question/9682526
#SPJ7
subtract 1 3/4 from 2 7/10. please answer me now I want it immediately
Answers
Answer:
Rewriting our equation with parts separated
=1+3/4−2−7/10=1+3/4−2−7/10
Solving the whole number parts
1−2=−11−2=−1
Solving the fraction parts
3/4−7/10=?
Find the LCD of 3/4 and 7/10 and rewrite to solve with the equivalent fractions.
LCD = 20
15/20−14/20=1/20 15/20−14/20=1/20
Combining the whole and fraction parts
−1+1/20=−19/20
Simplify 7x^2+ 5x+4x answer pls
Answers
Answer:
7x^2+9x
Step-by-step explanation:
Hope this helps...
7x^2+(5x+4x)=
7x^2=9x
Answer:
7x^2 + 9x
Step-by-step explanation:
that's all thanks
What’s this the sentence get me confused
Answers
Answer: D
Step-by-step explanation: asking for the difference
Which equation can be used to find the value of X?
The perimeter of the pentagon shown is 10.5x units.
The dimensions of the pentagon are given in units.
A 27x = 10.5x
2.5x units
2.5x units
B 2 + 25x = 10.5x
C 7x + 20 = 10.5x
10 units
10 units
D 22 + 5x = 10.5x
2 units
Answers
Answer: I got d :)
Step-by-step explanation:
solve the inequality 2(n + 3) - 4 < 6
Answers
Answer:
n < 2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
2(n + 3) - 4 < 6
Step 2: Solve for n
[Addition Property of Equality] Add 4 on both sides: 2(n + 3) < 10[Division Property of Equality] Divide 2 on both sides: n + 3 < 5[Subtraction Property of Equality] Subtract 3 on both sides: n < 2Here we see that any value n smaller than 2 would work as a solution to the inequality.
all expressions equivalent to 35x+3
Answers
Answer:
I think u need to give us the options you are given. There are an never ending number of expressions equivalent to 35x+3
Step-by-step explanation:
Mindy has a bag of coins. The bag contains 8 dimes, 5 nickels, and 3 pennies. She
will randomly select 2 coins from the bag one at a time without replacement.
What is the probability that Mindy will select a dime first and then, without
replacing it, a nickel?
SHOW WORK!
Answers
Answer:
1/6
Step-by-step explanation:
The probability of the dime being pulled first is 8/16 or 1/2
After the dime is pulled, the probability of the nickel being pulled is 5/15 or 1/3
Multiply 1/2 and 1/3 to get 1/6
Simplify by combining like terms. 8(3y + 4) - 10y
PLS HELP ME NOW, I NEED THE ANSWER‼️‼️
Answers
Answer:
14y + 32
Step-by-step explanation:
First apply the distributed property: 24y + 32 - 10yCombine like terms: 24y - 10y = 14yRe-write: 14y + 32I hope this helps!
For each ordered pair, determine wether it is a solution to y= -3x +5
Answers
Answer:
1.yes
2.no
3.yes
4.no
Step-by-step explanation:
can i plz get brainliest
PLZ HELP I WILL GIVE BRAINLIEST!!
Morgan is reading a 326-page book. The table shows three different plans to finish the book.
Plan Pages to Read Each Day Number of Days Needed
A 10 33
B 20 ?
C 30 11
Part A
Using Plan B, how many days will it take Morgan to finish her book? Enter your answer in the box.
days
Part B
Which explains how to find the number of days it will take Morgan to finish her book using Plan B?
Select all that apply.
A.
Multiply 20 × 16 to get 320, which is not enough days. So multiply 20 × 17 to get 340, which is enough days.
B.
Since 20 pages is halfway between 10 and 30 pages, the number of days must be halfway between 33 and 11 days.
C.
Since 10 pages are added each day from Plan A to Plan B, 10 days must be subtracted from the number of days needed in Plan A.
D.
Divide 326 ÷ 20 to get 16 R6. Round the quotient to the next greater whole number.
E.
Divide 326 ÷ 20 to get 17 R6. Round the quotient to the next greater whole number.
Answers
Answer:
Part A
16 and 1/2 or 16 R6, 17 if you round up
Part B
Answer choices A and D are correct
7th-grade equation math. Will give brainiest.
Answers
Answer:
x = 14
Step-by-step explanation:
What is 2(x + 2) + (x + 5)
Answers
Answer:
3x+9
Step-by-step explanation:
Five-sixths of the boats in the marina are white, 2 5 of the remaining boats are blue, and the rest are red. If there are 12 red boats, how many boats are in the marina?
Answers
Answer: There are 120 boats in the marina.
Step-by-step explanation:
Let's suppose that there are N boats
We know that 5/6 of them are white, then we have: (5/6)*N white boats.
The remaining is: N - (5/6)*N = (1/6)*N
We know that 2/5 of the remaining are blue, then we have:
(2/5)*(1/6)*N blue boats
And the rest are red, the rest is:
(1/6)*N - (2/5)*(1/6)*N = (3/5)*(1/6)*N
Then we have (3/5)*(1/6)*N red boats.
And we know that there are 12 red boats, then:
(3/5)*(1/6)*N = 12
Now we can solve this for N, which is the total number of boats in the marina.
N = 12*(6)*(5/3) = 120
There are 120 boats in the marina.
Cedro bought 10 ounces of Cereal A for $2.25. Then he bought 15 ounces of Cereal B for $3.30. Which cereal is less expensive?
Answers
Answer:
Cereal B.
Step-by-step explanation:
To figure out how much it costs per ounce for each cereal, first we need to divide.
Cereal A: $2.25 / 10 = $.225 per ounce
Cereal B: $3.30 / 15 = $.22 per ounce
So, cereal B is less expensive.
Can someone help me please and thank you ( i'll give brainliest and extra points)
Which table represents a quadratic function?
Answers
Answer:
D
Step-by-step explanation:
A table of values can be generated from a quadratic function by substituting the x-values and calculating the values for f(x). When looking at a table of values for a quadratic function, the x-intercepts represent the x-values where y = 0. This corresponds to the x-values where f(x) is 0 in function notation.
Step-by-step explanation:
c
because it ca. help you then way it was explain
plz help me this is super hard!!!!
Answers
Answer:
connect ideas
Step-by-step explanation:
have a great day
Answer: B
Step-by-step explanation:
tell me how you feel about math, what teachers should change about how they teach, and why.
.
.
absolutely just for a survey
Answers
Answer:
They teach good when they like us and the class
Teachers are the god because if they are not there we are not there
Step-by-step explanation:
Can someone help me
Answers
Answer:
50%
Step-by-step explanation:
because that say each square represent a Whole that is 100%
and each triangle represents the 1/2 Of a whole that is 50%
The percent is 50% because as you see that it is only shading half of that square!
We can't give you the direct answer but note: Well we cannot give the direct answers, this a a big part in the question, you can see that it gives 50% but there is also the other whole sqaure :)
(48p+24) / 6
Solve using Distributive property
Answers
Answer:
8p + 4
Step-by-step explanation:
(48p + 24) / 6
We will first divide the first term, 48p
48/6 = 8, so 48p/6 = 8p.
24/6=4
That makes our final expression:
8p + 4
If the radius of the sphere is 3 meters. Can you find the volume? Explain your answer.
Answers
Answer:
Yes
Step-by-step explanation:
The formula to find the volume of a sphere is (4/3) · π · r3 So~
V=(4/3) · π · r3 = (4/3) · π · 3^3 ≈ 113.09734
If you push a skateboard with a force of 6 N. If your mass is 60kg, what is the force that the skateboard exerts on you?
Answers
You exert 6N on the board, so the board also exerts 6N on you.
Rectangle PRST is similar to rectangle PVwX.
Which measurement in centimeters is represented
by d?
P
Х
T
11 cm
d
16 cm
12 cm
V
w
15 cm
© 18.75 cm
R
20 cm
s
D
16.25 cm
Answers
Answer:
18.75
Step-by-step explanation:
I GOT THIS QUESTION TOO I ACCIDENTALLY PUT THE WRONG ANSWER BUT THE ANSWER IS TOOK HALF IF 16=8
AND TOOK HALF OF 20=10 THAN I TAKE 10x15=150 THAN I
DIVIED WITH 8 WHICH IS [ ANSWER: 18.75 cm ] I THINK ITS RIGHT!!
SOMEONE PLEASE HELP ME ILL GIVE OUT BRAINLIEST PLEASE DON’T ANSWER IF YOU DON’T KNOW THANK YOU
Answers
Answer:
1. is B
2. is C
4. is yes
3.flies ( your correct)
5. A&D ( I think)
6. pads
Step-by-step explanation:
hope this helps:)
4х — Зу = — 13
— x + бу = — 44
what’s the point
Answers
Answer:
y=-9
x=10
Step-by-step explanation:
happy to help and if needed the step just ask and i'll explain it
which statement is not true about the circle below?
Answers
Answer:
the first choice: There are 3 points of tangency.
Step-by-step explanation:
A/first choice
The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (C) of a service for m miles of towing. The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (C) of a service for m miles of towing.
Answers
Answer:
50+8c
Step-by-step explanation:
Basically meaning 50 plus how ever many miles.
Don’t look at 2. But can someone help with one and fast ...????
Answers
Answer:
a? sorry if it wrong
Step-by-step explanation:
Explanation : simple math