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3 years ago

Determine the domain and range of the following relation. x + 2 = [y]

Mathematics

1 answer:

AleksandrR [38]3 years ago

4 0

Answer:

Domain: all real numbers

Range: all real numbers

Step-by-step explanation:

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Using division to find ratios that are equivalent to 40:28

GrogVix [38]

Answer: 10:7

Step-by-step explanation:

40:28=10*7

6 0

3 years ago

A copy machine makes 28 copies per minute. How many copies does it make in 3 minutes and 45 seconds?

lina2011 [118]

<u>Convert minutes and seconds to minutes:</u>
$\text{3 mins 45 seconds} \longrightarrow 3 \dfrac{3}{4} \text{mins}$

<u>FInd 3 3/4 mins:</u>
$\text{1 min} \longrightarrow 28 \text{ copies}$

$3 \dfrac{3}{4} \text{ min} \longrightarrow 28 \times 3\dfrac{3}{4} \text{ copies}$

$3 \dfrac{3}{4} \text{ min} \longrightarrow 28 \times \dfrac{15}{4} \text{ copies}$

$3 \dfrac{3}{4} \text{ min} \longrightarrow 105 \text{ copies}$

Answer: It can make 105 copies.

4 0

3 years ago

Which can be a next step in the construction of an angle with a side on line l that is congruent to ∠ABC?

iren2701 [21]

A) use a straightedge to draw a line thought D and F

6 0

3 years ago

Find the average rate of change for the given function from x = −1 to x = 2.

Mashutka [201]

$the \: average \: rate \: of \: change = \frac{f(x2) - f(x1)}{x2 - x1} \\ \frac{f(2) - f( - 1)}{ 2 - - 1} = \\ \frac{ - 3(2) + 2 - ( - 3( - 1) + 2)}{3} = \\ \frac{ - 6 + 2 - 3 - 2}{3} = \frac{ - 9}{3} = - 3$

3 0

3 years ago

Read 2 more answers

Please help asap!!!!!!

RSB [31]

Answer:

z = 66

Step-by-step explanation:

QT is a midsegment. Thus, applying the midsegment theorem:

RS = 2(QT)

QT = z - 33,

RS = z

Plug in the values into the equation

z = 2(z - 33)

z = 2z - 66

Subtract 2z from each side

z - 2z = -66

-z = -66

Divide both sides by -1

z = 66

5 0

2 years ago