Answers
Answer:
x ≈ 41.4°
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 Subtract Property of EqualityPre-Calculus
Law of Cosines: c² = a² + b² - 2(a)(b)cosC°Step-by-step explanation:
Step 1: Identify Variables
C° = x°
c = 12
a = 15
b = 18
Step 2: Solve for x
Substitute [LC]: 12² = 15² + 18² - 2(15)(18)cosx°Exponents: 144 = 225 + 324 - 2(15)(18)cosx°Add: 144 = 549 - 2(15)(18)cosx°Multiply: 144 = 549 - 540cosx°Isolate x term: -405 = -540cosx°Isolate x term: 3/4 = cosx°Isolate x: cos⁻¹(3/4) = x°Evaluate: x = 41.4096°Round: x ≈ 41.4°Related Questions
a - b = -14
a + b = _4
Answers
Answer:
+
Step-by-step explanation:
The weight of sand and a large bag is 63.4 lb. The sand in the bag is divided equally into 20 small bags what is the weight in pounds of a list of the sand in each small bags
Answers
Answer: Weight of sand in each bag = 3.17 lb.
Step-by-step explanation:
Given : Total weight of sand = 63.4 lb
Total small bags = 20
Weight of sand in each small bag = (Total weight of sand ) ÷ (Total bags)
Weight of sand in each small bag = ( 63.4) ÷ (20)
Weight of sand in each small bag = 3.17 lb
Hence, the weight of sand in each small bag = 3.17 lb.
Answer:
3.17lb
Step-by-step explanation:
true or false you can also use keep change changes for addition problems
Answers
Answer:
false
I guess I hope I'm right ?
Answer:
Falso dawgo
Step-by-step explanation:
por que si es la verdad
find slope (-3-,3) (6, -13)
Answers
Answer:
-10/9
Step-by-step explanation:
do y2-y1/x2-x1 to find it
Please help someone!!!
Answers
Answer:
[tex]x = 25[/tex]
Step-by-step explanation:
[tex](4x) + (5 + 3x) = 180[/tex]
[tex]4x + 5 + 3x = 180[/tex]
[tex]7x + 5 = 180[/tex]
[tex]7x = 180 - 5[/tex]
[tex]7x = 175[/tex]
[tex] \frac{7x}{7} = \frac{175}{7} [/tex]
[tex]x = \frac{175}{7} [/tex]
[tex]x = 25[/tex]
what's the answer and show your work by using the funnel method
Answers
PLEASE HELP mE: Expand the expression y(-5 - 8.3x).
Answers
Answer:
-5y - 8.3xy
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyStep-by-step explanation:
Step 1: Define
y(-5 - 8.3x)
Step 2: Expand
Distribute y: y(-5) + y(-8.3x)Multiply: -5y - 8.3xyPlease help me answer this!!!!
Answers
Answer:
Step-by-step explanation:
this is what i got. hope this helps!
Answer:
k = 70
Step-by-step explanation:
k = 6x + 100
k = 6(-5) + 100
k = -30 + 100
k = 70
Carin has 2/3 of a bottle of paint. She uses 1/6 of a bottle to paint one model airplane. How many model airplanes can carin paint with 2/3 of a bottle of paint. Answer
Answers
Answer:
4
Step-by-step explanation:
Given that :
Total fraction of paint Carin has = 2/3 bottle
Fraction used to paint a model airplane = 1/6
Number of model. Airplanes 2/3 of a bottle could paint ;
Total fraction of paint / fraction used to paint a model airplane
(2/3) ÷ (1/6)
2/3 * 6/1
= 12 / 3
= 4 model airplanes
The radius of a circle r in centimeters can be found by solving r to the second power = 70. What is the radius of the circle r, in centimeters?
Answers
Answer:
bhb jkabdjkea 7- 70 bhakbhkd
which statement is NOT true about the Absolute of -6?
A.it describes the difference between -6 and ) on the number line.
B.It equals the absolute value of 6.
C. it describe the difference between 6 and -6 on the number line
D.it can be expressed as | -6 |
Answers
Step-by-step explanation:
the answer is B..........
find x. i need this fast guys
Answers
Answer:
5
Step-by-step explanation:
58+78=131
180-131=49
10(5)-1
=5
Answer:
x=5
Step-by-step explanation:
A triangle= 180
53+78+10x-1=180
Combine like terms
130+10x=180
Subtract by 130 on both sides
10x=50
Divide by 10 on both sides
x=5
If the figures below are similar, find the scale factor of figure B to figure A
Answers
Answer: 3
Step-by-step explanation: Figure B has side measures 16, 20, and 9. Figure A has side measures 48, 27, and 60. The ratio of each of the corresponding sides is 1:3 (16:48, etc). Therefore, the scale factor of Figure B to Figure A is 3.
A bicycle has a listed price of $516.95 before tax. If the sales tax rate is 9.25%, find the total cost of the bicycle with sales tax included.
Answers
Answer:
564.77
Step-by-step explanation:
What is the answer to this problem ?4a4b6(•2a4b5c7)
Answers
Answer:
4 * a = 4
a = 1
b * 6
4 * 6
24b
2 a * 4 = 8
b * 5 = c *7
7 * 5 = 35
b = 17.5
C = 17.5
17.5+17.5 = 17.5 * 2 +4a+ b5
So your answer is 54a
Step-by-step explanation:
Thisss is late pls helpppp!!
Answers
Answer
36
Step-by-step explanation:
Step-by-step explanation:
1. d = 250 +5x
2. y+4
hope this helps!
what are the numbers from least to greatest -8 1/2, -4 1/2, -10 1/2, 4 1/2
Answers
Answer:
-10 1/2, -8 1/2, -4 1/2, 4 1/2
Step-by-step explanation:
Basically to get the answer, its easiest to convert the fraction to a decimal then put it on a number line. 1/2=0.5.
Answer:
-10 1/2, -8 1/2, -4 1/2, 4 1/2
Step-by-step explanation:
Something that helps is a number line, put 0 in the middle and put positive numbers on and negitive numbers so you can see what is smaller. For example:
least to greatest
<-------------------------------------------->
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7
Can somebody plz help answer these questions correctly! (only if u know it) thanks!!<3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST!!!:DD
Answers
Answer:
18-Yes 19-No 20-yes 21- yes
Step-by-step explanation:
18
1 to 4, 5 to 20
Yes, this is correct
WE can multiply 1*5 and 4*5 to get 5 to 20
19
Wrong
3 to 11, 1 to 3 isn't correct
For example, if we were to divide 3 by 3 to get one, 11/3 is 2. (6)
So, no
20
2/3 is 2 to 3
14/21 is 14 to 21
If we multiply 2*7 and 3*7, we get 14 to 21
21 25 to 30 is equal to 35 to 42
They just added 7 to both numbers
if we divide ratio 1 by 5, we get 5:6
if we divide ratio 2 by 7 we get 5 to 6
19. No
20. Yes
21. I think so
q = 3s + 4t
make s the subject pls I will mark brainliest to the answer
Answers
Answer:
q=3s+4t
q-4t=3s
(q-4t)/3=s
Step-by-step explanation:
WILL MARK YOU BRAINLIEST
Answers
Answer:
part 1:
see in the picture, E is the centre of the kite
1) AC = 2.EC = 40
2) CD = sqrt( ED² + EC² ) = sqrt(21² + 20²) = 29
3) ABE = 90⁰ - 51⁰ = 39⁰
4) BCE = BAE = 51⁰
part 2:
we have:
3x + 7 = (3x - 1 + 8x)/ 2
<=> 3x + 7 = 5.5x - 0.5
<=> 2.5x = 7.5
<=> x = 3
5) with x = 3 => UV = 3.3 - 1 = 9 - 1 = 8
6) XY = 3.3 + 7 = 9 + 7 = 16
7) TW = 8.3 = 24
9) the width of the base is x (x > 0)
we have:
28.5 = (x + 25)/2
<=> x + 25 = 57
<=> x = 32
solve the inequality: -5y - 8 < 2
Answers
Answer:
y>-2
Step-by-step explanation:
that is the answer
What is the difference between –11x – 2 and 13x + 5?
24x + 7
-24x + 7
24x + 3
-24x - 7
Answers
____________________________
1.) Find the opposite of 13x + 5:To find the opposite of 13x+5, find the opposite of each term.[tex]13x=-13x[/tex][tex]5=-5[/tex]- We do this because when solving this they are in parenthesis, so you must get rid of the parenthesis by turning them negative.
Equation at the end of Step 1:
[tex]-11x-2-13x-5[/tex]2.) Combine −11x and −13x:[tex]-11x+-13x=-24x[/tex]- We do this since we can only have on variable at the end of the problem, so you just combine them if they have the same variable base.
Equation at the end of Step 2:
[tex]-24x-2-5[/tex]3.) Subtract 5 from −2:[tex]-2-5=-7[/tex]- We do this because we need one number left over to get a simplified version of this equation.
Equation at the end of Step 3:
[tex]-24x-7[/tex]____________________________
answer fast!!!!!!!!!
pls
Answers
Convert 4/5 into a decimal
Answers
Answer:
0.8
Step-by-step explanation:
Convert the fraction to a decimal by dividing the numerator by the denominator.
Answer:4/5=0.8
Step-by-step explanation:
compute the dimensions of gravitational constant G where F=Gm1m2/r^2
Answers
Answer:
G=L^3/(T^2M)
Step-by-step explanation:
G=(Fr^2)/MmG=(ML^3)/(T^2M^2)G=L^3/(T^2M)If f(x)=1+2x-3x2, what is the value of f(-7)?
Answers
Answer:
answer of this qn is -150
Determine the unknown integer in the number sentence
___ - (-5) = 40
Answers
Answer:
35
Step-by-step explanation:
Answer:the answer is 35
Step-by-step explanation:
The cellular connection buys new model Z-phones for $80 each and sells them for $200. What is the percent markup, n, for the model z-phone?
Answers
Answer:
250%
Step-by-step explanation:
Hi there!
In order to solve this problem, we have to divide 200 by 80.
When we do this, we get 2.5. The number in the ones spot, in this case 2, would be worth 200%.
Now we have the 0.5
A half is equivalent to 50%, so we add those two percentages together to get 250%.
I hope this helps!
I need help! what's 2+2=????
4...
Answers
Answer:
4
Step-by-step explanation:
:)
Melanie needs 5,000 chocolates for an event so far she has brought 2 cases of 1,125 chocolates each how many more does she need
Answers
Answer:
2750 chocolates
Step-by-step explanation:
Find how much she has bought already:
1,125(2)
= 2,250
Then, subtract this from 5,000
5000 - 2250
= 2750
So, she still needs 2750
Answer:
2,750
Step-by-step explanation:
2 cases of 1,125 chocolates = 2,250 chocolates
5,000 - 2,250 = 2,750 more chocolates needed
(that's also 3 cases of chocolates needed :p)