All categories

2 years ago

Hey can someone help me?

Mathematics

1 answer:

RoseWind [281]2 years ago

4 0

No sir .it’s 100 +18

You might be interested in

Help will give 40 brainlest

weqwewe [10]

Answer:

The length Of G is 3 cm

Length of F is 12cm

Ratio of lengths are 3/12

=1:4

Area of G=9cm²

Area of F=144cm²

Ratio of area=9cm²/144cm²

=1:16

4 0

2 years ago

Give the sum of -2 3/8 + 1 1/4 in simplest form

AfilCa [17]

Find a common denominator
so -2 3/8 + 1 1/8
= -2 3/8 + 1 2/8
= -1 5/8

7 0

2 years ago

Brian bought a fish tank that is 22 in. long, 12 in. wide, and 16 in. tall. Which is the volume of the fish tank?

weeeeeb [17]

Answer: 4224 feet cubed

Step-by-step explanation:

Volume for a rectangular tank =LxWxH

22x12x16=4,224

5 0

2 years ago

Read 2 more answers

What is the antiderivative of sin^2(x)cos^2(x)?

marin [14]

Answer:

$\frac{x}{8}-\frac{\sin(4x)}{32}+C$

Step-by-step explanation:

[Most of the work here comes from manipulating the trig to make the term (integrand) integrable.]

Recall that we can express the squared trig functions in terms of cos(2x). That is,

$\cos(2x)=2\cos^2x-1 \\ \cos(2x)=1 - 2\sin^2x.$

And so inverting these,

$\cos^2x=\frac{1}{2} (1+\cos2x) \\ \sin^2x=\frac{1}{2} (1-\cos2x)$ .

Multiply them together to obtain an equivalent expression for sin^2(x)cos^2(x) in terms of cos(2x).

$\sin^2x \cdot \cos^2x =\frac{1}{2} (1-\cos2x) \cdot \frac{1}{2} (1+\cos2x) = \frac{1}{4}(1-\cos^2(2x)).$

Notice we have cos^2(2x) in the integrand now. We've made it worse! Let's try plugging back in to the first identity for cos^2(2x).

$\cos(2x)=2\cos^2x-1 \Rightarrow \cos(4x)=2\cos^2(2x)-1 \Rightarrow \cos^2(2x) = \frac{1}{2}(1+\cos(4x))$

So then,

$\sin^2x \cdot \cos^2x = \frac{1}{4}(1-\cos^2(2x)) = \frac{1}{4}(1-\frac{1}{2}(1+\cos(4x))) = \frac{1}{4}(1-\frac{1}{2}-\frac{1}{2}\cos(4x))=\frac{1}{8}(1-\cos(4x)).$

This is now integrable (phew),

$\int \sin^2x\cos^2x \ dx = \int \frac{1}{8}(1-\cos(4x)) \ dx = \frac{1}{8} \int (1-\cos(4x)) \ dx = \frac{1}{8}(x-\frac{1}{4}\sin(4x))+C.$

7 0

2 years ago

Find is the value of x.*

Setler79 [48]

Answer:

x=4

Step-by-step explanation:

3x=5x-8

3x-5x= -8

-2x= -8

x= -8÷-2

x=4

6 0

2 years ago