Answer:
Sin^2A-sin^2B
Step-by-step explanation:
(sin A + sin B) (sin A-sin B)
=SinA(sinA-sinB)+SinB(sinA-sinB)
=Sin^2A-sinAsinB+sinBSinA-sin^2B
=Sin^2A-sin^2B
HELP ME WITH THIS PLS
Answer:
10) -1
11) undefined
12) 3
4) 3/2
5) -2/3
6) 0
Step-by-step explanation:
Answer:
10.) -1
11.) y = 1
12.) 9/3 = 3
4.) 6/10 = 3/5
5.) 4/6 = -2/3
6.) x = -2
Step-by-step explanation:
Read this excerpt from "Birdfoot's Grampa.”
The old man
must have stopped our car
two dozen times to climb out
and gather into his hands
the small toads blinded
by our lights and leaping,
live drops of rain.
What are readers most likely to infer from the phrase "leaping, live drops of rain”?
The toads are all hurt.
The toads are still alive.
The toads are in shock.
The toads are not moving.
Answer:
The toads are in shock
Step-by-step explanation:
Thomas observed that his friend blinked an average of three times every 15 seconds.
How many times should his friend blink in 65 second?
Answer:
13 blinksStep-by-step explanation:
Step one:
given
number of blinks= 3
time taken to blink=15 seconds
the rate of blink is given as
rate= number of blinks/time taken
rate= 3/15
rate= 1/5 blinks per second, 0.2 blinks per second
Step two:
hence for a 65 second period, the number of blinks is
rate=number of blink/time
0.2=number of blink/9=65
cross multiply we have
number of blink=0.2*65
number of blink=13 blinks
Given x:y:z = 7:2:5 and the value of
x - z =18. Find the value of x+y+z.
Diberi x:y:z = 7:2:5 dan nilai x - 2 =18.
Cari nilai bagi x+y+z
A 14
B. 126
C. 210
D. 232
Answer:
x + y + z = 123
Step-by-step explanation:
x:y:z = 7:2:5
Let x = 7a, y = 2a, z = 5a
Since x - z = 18
Therefore,
7a - 5a = 18
2a + 18
a = 18/2
a = 9
7a = 7*9 = 63
2a = 2*9= 15
5a = 5*9 = 45
x + y + z = 63 + 15 + 45
x + y + z = 123
Which table represents the second piece of the function f(x) = StartLayout enlarged left-brace 1st Row 1st column negative 3.5 x + 0.5, 2nd column x less-than 1 2nd row 1st column 8 minus 2 x, 2nd column x greater-than-or-equal-to 1 EndLayout?
Answer:
C
Step-by-step explanation:
Third table represents the second piece of the function f(x)
What is Inequality?a relationship between two expressions or values that are not equal to each other is called 'inequality.
The given function is given by -3.5x+0.5, x<1 and 8-2x≥1
The second piece of the function f(x) is 8-2x ,x≥1
Now, we substitute some values of x and find the corresponding function values and check which table satisfy the points.
For x = 1
f(1)=8-2(1)=6
f(1)=6
For x = 2
f(2)=8-2(2)=4
f(2)=4
For x = 3
f(3)=8-2(3)=2
f(3)=2
Among the given tables, third tables contains these values.
Hence, Third table represents the second piece of the function f(x)
To learn more on Inequality click:
https://brainly.com/question/28823603
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a babysitter charges 9 dollars each hour she works plus a travel allowance of 5 dollars for each job. write an equation that relates the number of hours. the babysitter worked at a job for which she charged 77 dollars. how many hours did she work?
Answer:
y=9x +5 , 8 hours
Step-by-step explanation:
9 dollars per hour = 9x
travel allowance = 5
y = 9x + 5
77 = 9x + 5
77 = 9x +5
-5 -5
-----------------
72= 9x
72/9 = x
x= 8
x squared = 4x squared -75
The side of a square flower bed is 1m 80cm. It is enlarged by digging a strip 20cm wide all around it. find. a) the area of the enlarged flower bed b) the increase in the area of the flower bed.
Answer:a)40,000 b) 7600cm2
Step-by-step explanation:
Solve for a
ab + c = d
c
—-
a= b+ d
b
——-
a= (c+d)
(d-c)
a= ———
b
Answer:
A
Step-by-step explanation:
just took the test
Marissa bought 4 cans of corn and 8 cans of green beans for a total of $7.00. Bob bought 8 cans of corn and 7 cans of green beans for a total of $8.60. Determine how much each can green beans cost.
Step-by-step explanation:
1 can of corn = c
1 can of green beans = b
Marissa-> 4c+8b=7
Bob-> 8c+7b=8.60
form a simultaneous equation:
4c+8b=7
8c+7b=8.60
find a common coefficient, e.g. make the number of cans of corn that Marissa has, equal to the number of cans of corn that Bob has, so you would multiply the top equation by 2, so both people have 8 cans of corn
8c+16b=14
8c+7b=8.60
now you can cancel out the cans of corn, and subtract the second equation from the first one, so you would get:
16b-7b=9b
14-8.60= 5.4
so, 9b=5.4, and b= 0.6
so 1 can of green beans would cost $0.60
What is the answer for this?
Answer:
The general formula for nth term of given sequence is:
[tex]G_n = 54 . (\frac{1}{3})^{n-1}[/tex]
Step-by-step explanation:
Given sequence is:
54,18,6.....
In order to write the general formula of a sequence, first of all the common ratio has to be found. Common ratio is the ratio between consecutive terms of a geometric sequence.
[tex]Here\\a_1 = 54\\a_2 = 18\\a_3 = 6\\And\\r = \frac{a_2}{a_1} = \frac{18}{54} = \frac{1}{3} \\r = \frac{a_3}{a_2} = \frac{6}{18} = \frac{1}{3}[/tex]
The general formula is:
[tex]G_n = A_1 (r)^{n-1}[/tex]
Putting the values of a1 and r
[tex]G_n = 54 . (\frac{1}{3})^{n-1}[/tex]
Hence,
The general formula for nth term of given sequence is:
[tex]G_n = 54 . (\frac{1}{3})^{n-1}[/tex]
I need help with this question please
Answer:
..................
Step-by-step explanation:
x=13.........
Choose the triangle in which angle 2 is not an exterior angle.
A line extends from a side of the triangle to form angle 2.
A line extends from a side of the triangle to form angle 2.
A line does not extend from a side of a triangle to form angle 2.
A line extends from a side of the triangle to form angle 2.
Answer:
its C got it on E2020
Step-by-step explanation:
A line does not extend from a side of a triangle to form angle 2. Then the correct option is C.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.
The exterior angle of a triangle is almost always equal to the addition of the interior and opposing interior angles. The term "external angle property" refers to this feature.
Choose the triangle in which angle 2 is not an exterior angle.
The external angle can be made when the line is extended and the angle is formed outside the triangle, which is known as the exterior angle.
A line does not extend from a side of a triangle to form angle 2. Then the correct option is C.
More about the triangle link is given below.
https://brainly.com/question/25813512
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A submarine was at -9 meters. Three times it went down sub 20 meters. Finally, it went up 25 meters. Where is the submarine now? Solve and show work.
Answer:
-4 meters
Step-by-step explanation:
-9 - 20 meters (went down)
= -29 meters
-29+25 meters (went up)
= -4 meters
Hope this helped!
help please! does the graph represent a function?
Answer:
maybe
Step-by-step explanation:
l o l
XD
Write the point-slope form of the equation of the line through the point (3,-5) with a slope of -4/3.
Answer:
Step-by-step explanation:
y + 5 = -4/3(x - 3)
y + 5 = -4/3x + 1
y = -4/3x - 4
ASAP I really need help please!
Answer:
I can't see the fine details of the image displaying the weights of the bags but I would assume the heaviest bag is 2(3/4) pounds, being Bag C. The lightest bag is most likely Bag B, being 2(3/8) pounds.
Answer:
I can't read the fraction for B
but 2 3/4 is bigger than 2 1/2
For A party 10 friends are byinh 100 cups 100 plates a punchbowl and 200 balloons if the friends share the cost equally how much should each friend contribute ?
100 Balloons:$7.80
100 plates:$4.75
100 cups:$5.45
100 napkins:$2.09
10 invitations: $1.60
plastic punchbowl$11.50
Answer:
$2.58
Step-by-step explanation:
First, we should divide each number by 10 to get the amount per person we get...
10 cups
10 plates
20 balloons
Since the cost of cups, plates, and balloons is written as 100 of them, we just have to divide each of the by the amount we got after dividing by 10 and use that same amount and divide the money...
1. 10 cups is 1/10 of 100 cups so we divide $5.45 by 10 = .545
2. 10 plates is 1/10 of 100 plates so we divide $4.75 by 10 = .475
3. 20 balloons is 1/5 of 100 balloons so we divide $7.80 by 5 = 1.56
Now, we add them all up to get $2.58
Hope this Helps!!! :)
Let me know in the comments if I should fix anything or if this answer was perfect!!!
Max scored 71 and 65 on his first
two tests in Biology 101. What is the
lowest he must score on the third
test to get an average for the
three tests above 77?
Answer:
Step-by-step explanation:
If he scored 71 and 65 and needs an average above 77, you took the average needed of 77 and times by 3 since you will have 3 test total. 3*77=231. Take the 231- what you already have which is 136, to get 95. He will need a score of at least 95 to average the 77. 71+65+95=231 231/3= 77
So, x≥95. X is the next test. It would need to be greater than or equal to 95.
The formula for the circumference of a circle is C = 2r, where r is the radius and C is the circumference. The equation solved for r is r = r equals StartFraction C Over 2 pi EndFraction.
Answer:
r = c/2pi
Step-by-step
c= pi*d
d=2r
c = 2*r*pi
Answer:
r=8
Step-by-step explanation:
The answer is r8 for anyone looking. (e2020)
Please help in taking a test and don’t have much time
Answer:
115
Step-by-step explanation:
The volume of a cube can be written as a function of its edge length, V(x) = x^3. Which is a correct interpretation of V(2x)?
(A) The volume of a cube doubles when its edge length doubles.
B) The volume of a cube increases by a factor of 4 when its edge length doubles.
©
The volume of a cube increases by a factor of 6 when its edge length doubles.
D The volume of a cube increases by a factor of 8 when its edge length doubles.
Answer:
D The volume of a cube increases by a factor of 8 when its edge length doubles
Step-by-step explanation:
Volume of a cube is represented by the function
[tex]V(x)=x^3[/tex]
where [tex]x[/tex] represents the edge length of the cube
Now when [tex]x=2x[/tex] i.e., when the edge length is doubled we have
[tex]V(2x)=(2x)^3\\\Rightarrow V(2x)=8x^3\\\Rightarrow V(2x)=8(V(x))[/tex]
It can be seen that the volume of the cube increased by 8 times when edge length doubles.
Answer:
the answer is d
Step-by-step explanation:
cual es el volumen de un cubo que tiene como area exterior 1.176 cm2
??
Answer:
1.63
Step-by-step explanation:
V≈1.63
I NEED HELP ASAP PLEASE
Answer:
Step-by-step explanation:
Yo when you get these kind of questions you can use desmos calculator, for the future.
If one gallon is equal to eight pints, how many pints are in four gallons and two pints?
Answer: 36
Step-by-step explanation:
2 of 5
There are 6 times as many females as
males on the maths course at
university. What fraction of the course
are male?
Give your answer in its simplest form.
Answer:
M + F = total
6F + F = total
7F = total
F = (1/7) total
Explanation:
You can look at this as a ratio also.
The ratio of females to males is 1:6
That means out of every 7 students,
1 is female and 6 are male.
1 out of 7 is 1/7
Hope this helps!
please tell me if it does help.
Write the equation of the line with a slope = -4/3 through the point (6,-1)
Answer:
oh well
Step-by-step explanation:
11.6.21 You randomly select one card from 52-card deck Find the probability of selecting the jack of diamonds or the ace of clubs. The probabilitiy is . An integer a fractionSimplify your answer.)
Answer: 1/26
Step-by-step explanation:
Out of the 52 card deck there is a single Jack of diamonds and a single ace of clubs. Their individual probabilities are therefore both 1/52.
For the probability that you can pick either of those card you have to add up their probabilities;
= 1/52 + 1/52
= 2/52
= 1/26
2(4s-16)-5s=-5 What is S equal?
Answer:
S=9
Step-by-step explanation:
Answer:
s=9
Step-by-step explanation:
3s-32=-5
3s-32+32=-5+32
3s=27
3s/3 = 27/3
s = 9
In the function f(x)=2x+5, f(11)=___?
A 27
B 22
C 18
D 11
Answer:
A
Step-by-step explanation:
We have the function:
[tex]f(x)=2x+5[/tex]
And we want to find f(11).
So, we can substitute 11 for our function and evaluate. Therefore:
[tex]f(11)=2(11)+5[/tex]
Evaluate:
[tex]f(11)=22+5=27[/tex]
Hence, our answer is A.