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2 years ago

Which of these is a correct expansion of (3x − 1)(4x² + 5)?

Mathematics

1 answer:

My name is Ann [436]2 years ago

8 0

The correct expansion is B. 3x. 4x^2 + 3x•5 + (-1) • 4x^2+ (-1) • 5

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Make y the subject to the following questions

skelet666 [1.2K]

In this question it basically wants you to leave Y alone in a side of the equation.

In this case,
For 3y=c

$y=\frac{c}{3}$

For Ay=w

$y=\frac{w}{A}$

For Y/c=w
Y=cw

For y/a=2c
y=2ac

For a=y+p
y=a-p

For C=y-k
y=C+k

5 0

3 years ago

What is the value of f(3) in the function f(x)=5/6x+8

natita [175]

For this case we have a function of the form $y = f (x)$ , where $f (x) = \frac {5} {6} x + 8$

We must find the value of the function when $x = 3$ , that is, we must find f (3). So:

$f (3) = \frac {5} {6} (3) + 8\\f (3) = \frac {15} {6} +8\\f (3) = \frac {5} {2} +8\\f (3) = 2.5 + 8\\f (3) = 10.5$

So $f (3) = 10.5$

Answer:

$f (3) = 10.5$

3 0

4 years ago

Convert 150 degrees to radian

Dafna1 [17]

Answer:

Step-by-step explanation:

To convert degrees to radians

radian measure = degree measure × $\frac{\pi }{180}$

Hence

radian measure = 150° × $\frac{\pi }{180}$

Cancel both 150 and 180 by 30, then

radian measure = 5 × $\frac{\pi }{6}$ = $\frac{5\pi }{6}$

8 0

3 years ago

About how many times does a chickens heart beat in 1. Min

sammy [17]

Hello, a chickens heart beats 280-315 times per minute.

Happy Studies <3

8 0

3 years ago

Read 2 more answers

What is the value of tan C in this triangle?

goblinko [34]

Answer:

$\large\boxed{\dfrac{24}{7}}$

Step-by-step explanation:

$tangent=\dfrac{opposite}{adjacent}$

We have

$opposite=24\\adjacent=7$

Substitute:

$\tan C=\dfrac{24}{7}$

5 0

3 years ago