2 years ago

Answer this for brainliest

Mathematics

2 answers:

Alexeev081 [22]2 years ago

8 0

Answer:

43.98229715

Step-by-step explanation:

the formula to work out the circumference is 2πr

the diameter is given (14cm)

the radius is half the diameter so its (7cm)

2π x 7 = 43.98229715

if you are going to round this, it will go up to 44

Dafna1 [17]2 years ago

5 0

Answer:

Step-by-step explanation:

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(1 point) consider the function f(t)=⎧⎩⎨⎪⎪⎪⎪0,−5,−6,6,t<00≤t<11≤t<7t≥7;f(t)={0,t<0−5,0≤t<1−6,1≤t<76,t≥7; 1. wr

sergij07 [2.7K]

$f(t)=\begin{cases}0&\text{for }t$

Recall that

$u(t)=\begin{cases}0&\text{for }t$

Take it one piece at a time. For $t\ge0$ , we can scale $u(t)$ by -5:

$-5u(t)=\begin{cases}0&\text{for }t$

If we shift the argument by 1 and scale by -5, we have

$-5u(t-1)=\begin{cases}0&\text{for }t$

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$-5u(t)+5u(t-1)=\begin{cases}0&\text{for }t$

For the next piece, we can add another scaled and shifted step like

$-6u(t-1)+6u(t-7)=\begin{cases}0&\text{for }t$

so that

$-5u(t)+5u(t-1)-6u(t-1)+6u(t-7)=\begin{cases}0&\text{for }t$

For the last piece, we add one more term:

$6u(t-7)=\begin{cases}0&\text{for }t$

and so putting everything together, we get $f(t)$ :

$f(t)\equiv-5u(t)+5u(t-1)-6u(t-1)+6u(t-7)+6u(t-7)$
$f(t)\equiv-5u(t)-u(t-1)+12u(t-7)$

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3 years ago

Joel made some muffins he gave 1/4 of the muffins to a neighbor. He took 3/8 of the muffins to school. What fraction of the muff

geniusboy [140]

3/8 of the muffin is left

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3 years ago

What ratio forms a proportion with 8/36 ? <br> a. 1/4 <br> b.6/27<br> c.7/30 <br> d.2/7

Vaselesa [24]

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2 years ago