Answers
Answer:
38 degrees.
Step-by-step explanation:
Using the Cosine Rule:
11^2 = 10^2 + 17^2 - 2*10*17cos A
cos A = (11^2 - 10^2 - 17^2) / (-2*10*17)
cos A = -268/-340 = 0.788235
m < A = 37.979
Related Questions
Does the following equation represent a circle? Why or why not? X^2-y^2=4
Answers
Answer:
solution given:
yeah it represent circle
as it is in the form:
(x-h)²+(y-k)²=r²
where
centre(h,k)=(0,0)
radius [r]=2 units
Help plzzzzz help me
Answers
Answer: 10 < x < 60, or x is from 10 to 60
Step-by-step explanation: A domain of a graph consists of all of the input values shown on the x-axis while the range consists of all of the output values shown on the y-axis. Since the question asks to find the domain, you should look at the values of the graph from left to right. The domain includes all real numbers. Notice the black horizontal line on the graph and match up the beginning of it and the end of it with the values on the x-axis. The line begins at an x-value of 10 and ends at an x-value of 60; therefore, the domain (x-values) is from 10 to 60.
What is the area of the triangle?
Answers
Answer:
289m2
Step-by-step explanation:
The mathematical formula for the area of the triangle is:
base x height / 2
Solve the simultaneous equations
2x+4y=-9
2y=4x-7
Answers
Answer:
x=1/2,-5/2
Step-by-step explanation:
In how many ways can you make exactly $0.75 using only nickels, dimes, and quarters, if you must have at least one of each
coin?
Answers
Answer:
2 quarters, one nickel and two dimes
Step-by-step explanation:
2 quarters = 25 cents + 25 cents = 50 cents
Nickel is 5 cents
Two dimes is 10+10 = 20
50+20+5=75
You and a friend are trying to decide whether going to the movie theater or renting a film to watch at home would cost less. At Theater
Y, the cost of a ticket for young adults ages 10-18 is $7.75. A medium drink costs $2.50 and a small popcorn costs $2.50. Conversely,
it costs $4.50 to rent a movie, $1.50 for a 2 liter of cola, and $2.00 for a bag of microwave popcorn. Which option would cost less and
by how much?
Home by $17.50
Theater Y by $8.00
Theater Y by $17.50
Home by $8.00
Answers
Answer:
Home by $17.50
Step-by-step explanation:
Home by 17.50 because when going to the theater you have to consider all the costs of everything you will be purchasing so there will be 2 tickets for yourself and your friend 2 drinks and 2 small popcorns when you add all of these up it will look like this 7.75+7.75+2.50+2.50+2.50+2.50 = 25.50 then I will subtract this from the at home cost so 25.50 - 4.50 - 1.50 - 2.00 = 17.50 So it's cheaper home by 17.50
747 = (9 times x) + 9
Answers
Answer:
x=82
Step-by-step explanation:
You start of with subtracting both sides with 9
then you divide both side with 9
Remember the rule that whatever you do to one side, you have to do to the other side. So, how do we find x? The objective when we are simplifying equations like this is to isolate x. We need to make x lonely on one side. So let's try!
747 = 9x + 9
What is the first step to making x lonely? Usually try to use the property of addition or subtraction because it makes things 10x easier. So, using the idea of using addition or subtraction, let's make x lonely by minusing 9 on both sides.
747 = 9x + 9
- 9 - 9 (Remember we have to do the same thing to both sides!)
738 = 9x
Now we have 9 times x = 738. Hm, how do we make x lonely even more? What if divide both sides by 9. We are dividing both sides by 9 because this way, the 9 times will cancel out and disappear. Look:
738 = 9x
÷9 ÷9
82 = x
And there we go, we made x completely lonely and found out x = 82!
Decide if the expression is positive or negative - explain how you know in words
−11×(23)
Answers
Positive * Positive = Positive
Positive * Negative = Negative
Negative * Negative = Positive
In this expression, there is one positive number, and one negative number. The expression is going to be negative.
An athlete did one round around a circle of radius 42m.what is the total distance covered by him
Answers
Answer:
Again
Step-by-step explanation:
Answer:
42000cm
Step-by-step explanation:
42m======42000cm
pleaseeee help I’ll mark you as Brainly if the answers correct with no link just tell me please
Answers
Answer:
Step-by-step explanation:
25-2t=0
2t=25
t=25/2=12.5 hrs.
Answer:
Step-by-step explanation:
12 hours and 30 minutes because every hr is 2 degrees so 30 minutes is 1 degree
Answer ASAP! Best Answer Will Be Awarded, Links Will Be Reported. Thanks!
Answers
Maria deposits $1,950 into a savings account that earns simple interest at a rate of 3%. She makes no withdrawals. How much interest has Maria’s account earned after 4 years?
Answers
Answer:
x = .06418
Step-by-step explanation:
2 + (9.2)−8x = 2.32
(9.2)−8x = 2.32 − 2
log (9.2)−8x = log .32
−8x log 9.2 = log .32
−8x log 9.2
−8 log 9.2
=
log .32
−8 log 9.2
x = .06418
find cos B 52 b 65 a 39
Answers
Answer:
hi
Step-by-step explanation:
i think it is 52/65
hope it helps
have a nice day
what is the radius of the cylinder
Answers
Answer:
5.99
Step-by-step explanation:
brainliest pwease??
The volume of a cylinder can be found with the following equation
[tex]V = r^2h\pi[/tex]
After inputting the known information we get
[tex]980\pi = r^220\pi \\\\[/tex]
Which simplifies to
radius = 7 or (-7)
For proof's sake, we can try the equation again with the known radius
[tex]980\pi = r^220\pi \\980\pi = (7^2)20\pi \\980\pi = (49)20\pi \\980\pi = 980\pi \\[/tex]
And because the radius is being squared, it can either be negative or positive.
14pts FOR THIS ONE!! PLEASE
Answers
Answer:
What website is this picture on. I can not see the picture.
Step-by-step explanation:
Find the gradient of the curve y = x^5/2 at the point where x = 4
Answers
Given:
The equation of the curve is:
[tex]y=x^{\frac{5}{2}}[/tex]
To find:
The gradient of the given curve at the point where [tex]x = 4[/tex].
Solution:
We have,
[tex]y=x^{\frac{5}{2}}[/tex]
Differentiate with respect to x.
[tex]y'=\dfrac{5}{2}x^{\frac{5}{2}-1}[/tex] [tex][\because \dfrac{d}{dx}x^n=nx^{n-1}][/tex]
[tex]y'=\dfrac{5}{2}x^{\frac{3}{2}}[/tex]
Substituting [tex]x=4[/tex], we get
[tex]y'=\dfrac{5}{2}(4)^{\frac{3}{2}}[/tex]
[tex]y'=\dfrac{5}{2}(2^2)^{\frac{3}{2}}[/tex]
Using properties of exponents, we get
[tex]y'=\dfrac{5}{2}(2)^{2\times \frac{3}{2}}[/tex] [tex][\because (a^m)^n=a^{mn}][/tex]
[tex]y'=\dfrac{5}{2}(2)^{3}[/tex]
[tex]y'=\dfrac{5}{2}(8)[/tex]
[tex]y'=20[/tex]
Therefore, the gradient of the given curve at the point where [tex]x = 4[/tex] is 20.
Three friends ordered personal-sized pizzas for lunch. Lucia ate 2/3 of her pizza, Allie ate 1/4 of her pizza, and Carolina ate 2/5 of her pizza. Which statement correctly compares the amount of pizza that the friends ate?
Answers
Answer:
They have atleast two or one left
TRUE OR FALSE!!!!?????
Answers
Answer:
the statement is a true statement
What does y equal in the equation ? 6 - 2y = -8
Answers
Answer:
7
Step-by-step explanation:
because 6 plus 8 equals 2y then 14 equals 2y the divide each side by 2 so y equals to 7
I will mark Brainliest if u help meee
Answers
Answer:
Same y-intercept
Step-by-step explanation:
They have the same y-intercept of 2
look a y intercept is where the function crosses the y axis or when x is 0
In the chart y=2 when x =2 meaning a y intercept of 2
in the graph u can see the line going through the y intercept at (0,2)
So they have the same y-intercept
What is the value of b?
Help please
Answers
Answer:
4/3 is ur answer which is equal to 6.92820323028
which i B's side length
Step-by-step explanation:
Which means that the longer leg=square root of 3 times the shortest leg ( the shortest leg lies opposite of the 30 degrees angle)
=4_/3 or the second choice
WILL GIVE BRAINLIEST!
The slope of a line is 2/5
What is the slope of any line perpendicular to this line? (If an answer is undefined, enter UNDEFINED.)
Answers
Step-by-step explanation:
Explanation:
First, we must solve the equation for y to determine the slope: y = 2x + 3/2
By looking at the coefficient in front of x, we know that the slope of this line has a value of 2. To fine the slope of any line perpendicular to this one, we take the negative reciprocal of it:
slope = m , perpendicular slope = – 1/m
slope = 2 , perpendicular slope = – 1/2
Answer:
the slope would be -5/2
Explanation:
the perpendicular slope of a line is the negative reciprocal and the negative reciprocal of 2/5 is -5/2
The steps below show the incomplete solution to find the value of m for the equation 5m − 2m + 4 = −1 + 12: Step 1: 5m − 2m + 3 = −1 + 12 Step 2: 5m − 2m + 3 = 11 Step 3: 3m + 3 = 11 Which of these is most likely the next step? (5 points) a 3m = 3 b 3m = 8 c 3m = 16 d 3m = 18
Answers
Given:
Consider the equation is:
[tex]5m-2m+3=-1+12[/tex]
Some steps of the solution are given.
To find:
The next step of the solution.
Solution:
Step 1: The given equation is:
[tex]5m-2m+3=-1+12[/tex]
Step 2: Simplifying right hand side.
[tex]5m-2m+3=11[/tex]
Step 3: Simplifying left hand side.
[tex]3m+3=11[/tex]
These steps are already given. So, the next step is:
Step 4: Subtracting 3 from both sides.
[tex]3m=8[/tex]
Therefore, the correct option is (b).
someone please answer this fast 35cos(78)
Answers
Answer:
−30.02310826357
Step-by-step explanation:
−30.02310826357
Explain why triangle ABC is similar to triangle CFE
Answers
Answer:
It's exactly the same, except the size
Step-by-step explanation:
Answer:
They are similar because if you look at the length of 2 of the sides that you know
Triangle ABC has side length 1 and 2 or 1:2
CFE has sides length 2 and 4 or 2:4 and 2:4 can also be written as [tex]\frac{2}{4}[/tex] which is a fraction, and fractions can be simplified to 1:2.
So they are similar but just one is bigger then the other.
Jacob sold 40 candy bars and made $65. He sold two types of
bars - chocolate for $2 each and peanut butter for $1 each.
How many of each type of candy bar did Jacob sell?
Answers
Answer:
Jacob sold 25 bars - chocolates and 15 peanut butter.
Step-by-step explanation:
Jacob sold 40 candy bars.
Let the bars - chocolate be x and peanut butter be y and made $65.
Now,
x + y = 40 ...(1)
2x + y = 65 ...(2)
Now, From equation (1) we get,
x + y = 40
x = 40 - y
Now, put the value of x = 40 - y in equation (2) we get,
2x + y = 65
2(40 - y) + y = 65
80 - 2y + y = 65
y = 80 - 65
y = 15
Now, put the value of y in equation (1)
x + y = 40
x + 15 = 40
x = 40 - 15
x = 25
The bars - chocolate = x = 25 and
peanut butter = y = 15
Thus, Jacob sold 25 bars - chocolates and 15 peanut butter.
-TheUnknownScientist
Please help will mark you brainiest
Answers
Answer:
c
Step-by-step explanation:
answer the question for brainilest and 30 points
Answers
help please i’ll really appreciate it
Answers
Answer:
704
Step-by-step explanation:
We need to find the volume of pyramid and cube and plus.
volume of pyramid
l-Base length
w-Base width
h-Pyramid height
Vp==lwh /3=8·8·9 /3=192
Volume of pyramid and cube
a-Edge
Va=a³=8³=512
V=Va+Vp=512+192=704
HELP THIS IS DUE TODAY
Answers
Answer:
7) circumference = 11.78 ft
8) arc NMP = 198° or 27.63 ft
Step-by-step explanation:
7) circumference = πd = (3.14) (3 3/4) = 11.78 ft
8) radius = 8 ft
diameter = 2 x 8 = 16 ft
arc NM + arc QP = 360° - 162° - 162° = 36°
arc NM = arc QP because they are arcs of vertical angles.
arc QP = 18°
arc NMQ = 180°
arc NMP = 180° + 18° = 198°
circumference = πd = (3.14)(16) = 50.24 ft
(198°/360°)(50.24) = 27.63 ft