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3 years ago

Can you help me with pls

Mathematics

2 answers:

jasenka [17]3 years ago

3 0

A and b are similar

Lena [83]3 years ago

3 0

Answer:

Rectangles A and B are similar

Step-by-step explanation:

They are the ones that Have sides that are proportional (From equal ratios)

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Hoped this Helped

Thank you for the question

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CAN SOMEONE PLEASE EXPLAIN TO ME HOW TO WORK THIS OUT ?

Maksim231197 [3]

Answer: HI = √97

Step-by-step explanation:

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3 years ago

Evaluate the following double integral where a = 2y

Keith_Richards [23]

Change the order of integration.

$\displaystyle \int_0^1 \int_{2y}^2 \cos(x^2) \, dx \, dy = \int_0^2 \int_0^{x/2} \cos(x^2) \, dy \, dx \\\\ ~~~~~~~~ = \int_0^2 \cos(x^2) y \bigg|_{y=0}^{y=x/2} \, dx \\\\ ~~~~~~~~ = \frac12 \int_0^2 x \cos(x^2) \, dx$

Substitute $u=x^2$ and $du=2x\,dx$ .

$\displaystyle \frac12 \int_0^2 x \cos(x^2) \, dx = \frac14 \int_0^4 \cos(u) \, du = \frac14 \sin(u) \bigg|_{u=0}^{u=4} = \boxed{\frac{\sin(4)}4}$

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1 year ago

What is the pattern between 1/4, 1/2, 3/4, and 1

bagirrra123 [75]

Answer:

Adding 1/4 each time

Step-by-step explanation:

1/4+1/4=1/2

1/2+1/4=3/4

3/4+1/4=1

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3 years ago

In a group of bird-watchers, 4 out of every 5 people have seen a bald eagle. What percent of the bird-watchers have not seen a

Andreas93 [3]

Answer:

20%

Step-by-step explanation:

4/5=.80

1-.80=.20

.20=20%

4 0

3 years ago

I NEED HELP!!!

andrey2020 [161]

Answer:

<h2>B. The amount of fuel used was lowest at speeds around 60km/h.</h2>

Step-by-step explanation:

The decreasing part is from (20,13) to (60,6), which gives an average rate of

$r=\frac{6-13}{60-20}=-\frac{7}{40}=-0.175$

Then, we have an increasing part from (60,6) to (120,10), which gives an average rate of

$r=\frac{10-6}{120-60}=\frac{4}{60}=0.067$

Basically, at 60 km/h the fuel used was 6 liters per 100 kilometers. Notice that the other velocities make the car to use more liters per kilometers.

Therefore, the amount of fuel used was lowest at speeds around 60 km/h.

6 0

3 years ago