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Hoochie [10]
3 years ago
10

I don’t know if this is correct !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!! PLEASE HELP !!!!!!!!!!!!!!!

Mathematics
2 answers:
klasskru [66]3 years ago
8 0

Answer:

the first part is correct but the second should be "alternate interior angles"

Step-by-step explanation:

Rudiy273 years ago
6 0
Yes the first is correct but not the second but I don’t know the second one
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<img src="https://tex.z-dn.net/?f=%5Cint%7B%5Bsin%289x%29cos%289x%29%5D%7D%20%5C%2C%20dx" id="TexFormula1" title="\int{[sin(9x)c
Sladkaya [172]

Recall the double angle identity,

sin(2x) = 2 sin(x) cos(x)

Then we can write

sin(9x) cos(9x) = 1/2 sin(2 • 9x) = 1/2 sin(18x)

Then

∫ sin(9x) cos(9x) dx

= 1/2 ∫ sin(18x) dx

= -1/2 • 1/18 cos(18x) + C

= -1/36 cos(18x) + C

though you could continue with another double angle identity,

cos(2x) = cos²(x) - sin²(x)

to rewrite the antiderivative as

= -1/36 (cos²(9x) - sin²(9x)) + C

= 1/36 (sin²(9x) - cos²(9x)) + C

5 0
2 years ago
A survey asked 36 students to choose their favorite type of music from the choices of rock, pop, and country. The results of the
tekilochka [14]

Answer:

B

Step-by-step explanation:

9 out of 36 chose country, that is expressed as a fraction

\frac{9}{36} = \frac{1}{4}

Thus calculate this fraction of 240

\frac{1}{4} × 240 = \frac{240}{4} = 60 → B

7 0
4 years ago
Read 2 more answers
X/7= 40/30 give the value of x
Sonja [21]
X = 40/30 × 7
x = 280/30
x = 28/3
6 0
3 years ago
Read 2 more answers
If the ratio of the sides of two squares is 3:1, what is the ratio of their perimeters?
Anvisha [2.4K]

Answer:

Ratio of the perimeters =3:1

Step-by-step explanation:

We have given that : Ratio of the sides of two squares is 3:1

To find : Ratio of their perimeters

Solution : Let the length of the sides are 3:1 = 3x : x

                  Formula of perimeter of square = 4(side)

Using the formula ,

Perimeter of 1 square = 4×3x= 12x

Perimeter of 2 square = 4×x= 4x

Ratio of the perimeter of 1 square and 2 square = 12x : 4x

                                                                                 = 3 : 1


8 0
4 years ago
There are 1000 households in a town. Specifically, there are 100 households with one member, 200 households with 2 members, 300
vlada-n [284]

Answer:

3300 people

Step-by-step explanation:

There are 1000 households in a town. Specifically, there are

100 households with one member

= 100 × 1 member

= 100 people

200 households with 2 members

= 200 × 2 members

= 400 people

300 households with 3 members

= 300 × 3 member

= 900 people

200 households with 4 members,

= 200 × 4 members

= 800 people

100 households with 5 members

= 100 × 5 members

= 500 people

100 households with 6 members.

= 100 × 6 member

= 600 people

Thus, the total number of people living in the town is

100 people + 400 people + 900 people + 800 people + 500 people + 600 people

= 3300 people

3 0
3 years ago
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