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Stels [109]
2 years ago
10

3.The side of a square frame is (2b - 1) inches. Find its area.

Mathematics
1 answer:
sweet-ann [11.9K]2 years ago
5 0

Answer:

Step-by-step explanation:

(a - b)² = a² + 2ab + b²

Area of square frame =side²

                                   = (2b - 1)²

                                   = (2b)² - 2*2b * 1 + 1²

                                   = 4b² - 4b + 1

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What is the easiest way to re learn ratios
enot [183]

Answer:

Step-by-step explanation:

Ratios are no different from fractions. They are "comparisons" of 2 or more things. Instead of fraction bars, they use colons to separate 2 different things.

For example:

\frac{1}{2}=1:2

Now, let's do an example problem.

Ex: find the ratio of 5 cats to every dog.

We are comparing 5 cats to every 1 dog, so the ratio is:

5:1

Don't make thing more complicated to yourself, and don't overthink it. They are exactly like fractions. So treat them as such!

3 0
2 years ago
(90) points ill give brainly immideatly but gotta be right -------- Maria and her parents are hiking in the mountains. During on
Nutka1998 [239]

Answer:

(C) Maria's elevation increased between 9:00 and 12:00

Step-by-step explanation:

Looking at the graph, we can test each statement.

For A, it says Maria's elevation remained constant for 2 hours. Looking at the graph, we can see that it remained constant for just one hour, so this is eliminated.

For B, Maria's elevation decreased between 1:00 and 3:00, we can see that while x is between 1:00 and 3:00, the y is decreasing, meaning this statement is false - this is eliminated.

For C, Maria's elevation increased between 9:00 and 12:00, we can see that while x is between 9:00 and 12:00, the graph is increasing - which means this is correct.

For D, Maria spent more time decreasing her elevation than increasing, we can count how many hours were spent doing each. Comparing the x-axis, we can see that Maria spent 5 hours increasing and 3 hours decreasing, meaning that Maria spent more time INCREASING than decreasing, making this statement false.

Hope this helped!

6 0
3 years ago
Can you graph y=8x+30
hoa [83]

Answer:

Here is your answer if thats is what you where asking for

Step-by-step explanation:

I really hope this helps! Look at the image I Uploaded.


3 0
3 years ago
Forty percent of what number is 144?<br> (A)360 (B) 57.6 (C)72 (D)5760
ale4655 [162]

Answer:

(A) 360

Step-by-step explanation:

360*.40=144

4 0
3 years ago
Read 2 more answers
How do you know if an angle is acute or obtuse?
ValentinkaMS [17]
<span>obtuse angle is greater than 90 degree
acute angle is less than 90 degree</span>
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3 years ago
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