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4 years ago

Helen draws a random circle She then measures the diameter and circumference

Mathematics

1 answer:

miv72 [106K]4 years ago

6 0

Answer:

do pi witch is 2 times pi times r for the diameter

Step-by-step explanation:

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What is the value of x?

zepelin [54]

The sum of the angles in a heptagon is 900°, so we would add the real numbers that we have here:

121°+139°+125°+126°+158°+120°=789°

x would equal the remaining value:

x=900-789

x=111°

5 0

3 years ago

If the nth term of a sequence is<br> 12n - 6 what is the 8th term?

slega [8]

Answer:

i think the answer is 90

Step-by-step explanation:

i hope this helped you have a nice day :)

8 0

3 years ago

An editor gets $2890 raise each year. In her eighth year, she is making $27,400 per year. Write a function that represents her i

timama [110]

Answer: $7170+2890x$

Step-by-step explanation:

Given

Editor gets a raise of $\$2890$ each year

In her eighth year, she is making $\$27,400$

Eighth years refers to 7 complete year

Suppose she starts with an amount of P

So, her pay after x years is

$\Rightarrow P+2890x$

for the eighth year i.e. $x=7$

$\Rightarrow P+2890\times 7=27400\\\Rightarrow P=27400-20230=\$7170$

after x years it is

$\Rightarrow 7170+2890x$

4 0

3 years ago

Simplify the following expression:<br>-5[(x^3 + 1)(x + 4)]

lisov135 [29]

Answer:

$-5x^{4} -20x^{3} -5x-20$

Step-by-step explanation:

$-5[(x^{3} +1)(x+4)]$

Use the FOIL method for the last two groups.

$-5(x^{4} +4x^{3} +x+4)$

Now, distribute the -5 into each term.

$-5x^{4} -20x^{3} -5x-20$

8 0

4 years ago

2(n2 + 1) − 3(n2 − 3) + 3(7n2 − 2), n = 1 4

lys-0071 [83]

The correct answer is 61 :)(;

5 0

3 years ago