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2 years ago

1. A rectangle is 3/4 as wide as it is long. How

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

5 0

Answer:

B. 6 inches

Step-by-step explanation:

To find how wide it is, multiply the length by 3/4

8(3/4)

= 6

The width of the rectangle in 6 inches.

So, the correct answer is B. 6 inches

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17+17+17+17+17+1764638292836362729=

Mazyrski [523]

Answer:

1.7646383e+18

Step-by-step explanation:

mark me as brainliest pls :)

8 0

2 years ago

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Find the values of m and b that make the following function differentiable.

KengaRu [80]

$f(x)=\begin{cases}x^2&\text{for }x\le2\\mx+b&\text{for }x>2\end{cases}$

In order to be differentiable everywhere, $f$ must first be continuous everywhere, which means the limits from either side as $x\to2$ must be the same and equal to $f(2)$ . By definition, $f(2)=2^2=4$ , and

$\displaystyle\lim_{x\to2^-}f(x)=\lim_{x\to2}x^2=4$

$\displaystyle\lim_{x\to2^+}f(x)=\lim_{x\to2}(mx+b)=2m+b$

so we need to have $4m+b=4$ .

For $f$ to be differentiable at $x=2$ , the derivative needs to be continuous at $x=2$ , i.e.

$\displaystyle\lim_{x\to2^-}f'(x)=\lim_{x\to2^+}f'(x)$

We then need to have

$\displaystyle\lim_{x\to2}2x=\lim_{x\to2}m\implies\boxed{m=4}$

Then

$2m+b=4\implies\boxed{b=-4}$

7 0

2 years ago

What is the algebraic expression for "the difference between seven times a number and three times that number"?

inna [77]

Answer:

7x-3x = 4x?

I think

8 0

3 years ago

Read 2 more answers

Help me with this attachment please?

Volgvan

Answer

1st solution: a = 1

b = 3

2nd solution: a = 2

b = 6

Explanation

1st solution

1

333

 +333

 1333

2nd solution

2

666

 + 666

 2666

4 0

2 years ago

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Zachary is making dumplings. If he uses cup of dough for each dumpling, how

LekaFEV [45]

Answer:

11 cups of dough

Step-by-step explanation:

1 cup x 11 dumplings = 11 cups of dough needed

6 0

3 years ago

Read 2 more answers