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3 years ago

What is 4(6x + 11)? What I mean is how do you find the answer to this and what is the answer

2 answers:

8 0

Well that is an expression not an equation so it has no answer as you typed it.
You can expand it by carrying out the indicated multiplication if you'd like:

4(6x)+4(11)

24x+44

irinina [24]3 years ago

4 0

4 times 6 equals 24 plus 11 equals 35

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Cna i get some help with dis plz

Tomtit [17]

Let $b_1,b_2,\ldots,b_{20}$ be the 20 marks of the boys, and $g_1,g_2,\ldots,g_{10}$ be the 10 marks of the girls.

We know that the global mean was 70, meaning that

$\dfrac{b_1+b_2+\ldots+b_{20}+g_1+g_2+\ldots+g_{10}}{30}=70$

Multiplying both sides by 30 we deduce that the sum of the scores of the whole classroom is

$b_1+b_2+\ldots+b_{20}+g_1+g_2+\ldots+g_{10}=2100$

By the same logic, we work with the marks of the boys alone: we know the average:

$\dfrac{b_1+b_2+\ldots+b_{20}}{20}=62$

And we deduce the sum of the marks for the boys:

$b_1+b_2+\ldots+b_{20}=1240$

Which implies that the sum of the marks of the girls is $2100-1240=860$

And finally, the mean for the girls alone is

$\dfrac{860}{10}=86$

6 0

3 years ago

Show all steps necessary to verify the trigonometric identity:

vekshin1

Answer:

1+tan2x

Tan2x

= <u> sec²x </u> = <u>Sec²x </u> = cosec²x

Tan²x ( Sec²x/cosec²x)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which points are solutions to the system of inequalities? Select ALL that apply.

ZanzabumX [31]

Answer:

0,0

2,-1

-2,4

Step-by-step explanation:

3 0

3 years ago

A continuous random variable X has cdf F(x)=x² b (a) Determine the constants a and b. for a < 0, for 0 < x < 1, for x &

Karolina [17]

Any proper CDF $F(x)$ has the properties

• $\displaystyle \lim_{x\to-\infty} F(x) = 0$

• $\displaystyle \lim_{x\to+\infty} F(x) = 1$

so we have to have a = 0 and b = 1.

This follows from the definitions of PDFs and CDFs. The PDF must satisfy

$\displaystyle \int_{-\infty}^\infty f(x) \, dx = 1$

and so

$\displaystyle \lim_{x\to-\infty} F(x) = \int_{-\infty}^{-\infty} f(t) \, dt = 0 \implies a = 0$

$\displaystyle \lim_{x\to+\infty} F(x) = \int_{-\infty}^\infty f(t) \, dt = 1 \implies b = 1$

8 0

2 years ago

A circle has a radius of 20 centimeters and a central angle that measures 216 degrees. What is the length of the arc defined by

Bumek [7]

Answer:4320cm

Step-by-step explanation:

(length of the arc)/(length of the radius)=central angle

lengthof the arc/20=216

lengthof the arc=216×20

length of the arc=4320cm

8 0

3 years ago