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3 years ago

PLEASE HELP ASAP ITS TIMED

Mathematics

1 answer:

strojnjashka [21]3 years ago

7 0

Answer:

D. x<-9

Step-by-step explanation:

-3(x+5)>12

x+5<12/-3

x+5<-4

x<-4-5

x<-9

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Solve this sum plsss urgent

stiks02 [169]

1. 1 and -1 are two such rational numbers whose multiplicative inverse is same as they are.

2. absolute value is resembled using the formula : |x|

Here,

$\hookrightarrow \sf |\dfrac{-3}{11} |$

$\hookrightarrow \sf \dfrac{3}{11}$

final answer: 3/11

$\hookrightarrow \sf \dfrac{1}{2} \div \dfrac{3}{5}$

$\hookrightarrow \sf \dfrac{1}{2} * \dfrac{5}{3}$

$\hookrightarrow \sf \dfrac{5}{6}$

Associative property can only be used with addition and multiplication

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2 years ago

If you stacked Avogadro's number of pennies one on top of the other on Earth's surface, how far would the stack extend (in kilom

miskamm [114]

Answer:my

The height of the stack will be 9.15×10^20_m

Or 9.15×10^17_Km

Which is 6 billion times more more than the distance to the sun

Or 22.9 million times further than the star Proxima Centauri

Step-by-step explanation:

Given

Avogadro's number = 6.02×10^23 particles

And the thickness of a penny = 1.52_mm

The height of the stack will be

1.52 × 6.02 ×10^23 = 9.15×10^23_mm 9.15×10^20_m

7 0

3 years ago

HELP ME ASAP I HAVE SO MANY QUESTIONS THAT WILL SAY THIS BUT HELP MEEE!!!(timed!!)

tester [92]

Answer:

1. $8.30

Step-by-step explanation:

so 3 hats were purchased and each cost 15.50 so

15.50*3=46.50

and the rest of the 96.30 is 6 keychains so

96.30-46.50=49.80

and there is 6 keychains

49.80/6=8.30

Each key chain was $8.30

Claire's answer is unreasonable because when we got the price of the keychains all together in Claire's mind the total for the keychains would be $4.98, which we clearly got the total for the keychains at $49.80.

8 0

3 years ago

Read 2 more answers

Help me with math please, really urgent!

Alenkasestr [34]

X2 is on the right side, X1 is on the left side so -14 would be X1 and 2 would be x2

so it would be the first answer

7 0

3 years ago

Divide. Express the quotient in simplest form.<br> x^2−x−12/2x^2÷x^2+x−6/2x^3

sertanlavr [38]

Hey there!

These are technically expressed as fraction. When you divide a fraction by another, you can replace the second fraction with its reciprocal and you can now multiply the fractions together instead.

$\frac{x^2-x-12}{2x^2} / \frac{x^2+x-6}{2x^3}$

$\frac{x^2-x-12}{2x^2} * \frac{2x^3}{x^2+x-6}$

Now, just multiply across the top and the bottom. You can first cancel out any terms that are repeated or similar.

$\frac{12}{2x^2} * \frac{2x^3}{-6}$

$\frac{2}{x} * \frac{1}{-1}$

$\frac{2}{-x}$

Your answer will be $\frac{2}{-x}$ .

Hope this helped you out! :-)

5 0

3 years ago

Read 2 more answers