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2 years ago

tell me which 4 letters are correct! A? B? C? D? E? F? if you get them right i will give you brainliest!!

Mathematics

1 answer:

butalik [34]2 years ago

5 0

Answer:

B, E, D, and C

Step-by-step explanation:

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Does anyone know how to do this question ??

Viktor [21]

Y^2-9^2

(y-9)(y+9)

To see if its right:

y*y+y*9-9*y-9*9
y^2+9y-9y-81
y^2-9^2

4 0

3 years ago

HELP!!!!! In a hurry!

katen-ka-za [31]

Answer:

C - b = 190x - 10x

Step-by-step explanation:

Mark brainliest

4 0

3 years ago

The average mass of an ant is approximately 3 × 10 − 3 grams. The average mass of a giraffe is approximately 2 × 10 3 kilograms.

Vika [28.1K]

Given that average mass of an ant $= 3 \times 10^{-3}$ grams.

Given that average mass of a giraffe $= 2 \times 10^{3}$ Kilograms.

Now we have to find about how many times more mass does a giraffe have than an ant. Before carring out any comparision, we must make both units equal.

Like convert kilogram into gram or gram into kilogram.

I'm going to convert kilogram into gram using formula

1 Kg = 1000 g

So the average mass of a giraffe $= 2 \times 10^{3} *10^3$ grams.

Now we just need to divide mass of giraffe by mass of ant to find the answer.

$\frac{2 \times 10^{3} *10^3 }{3 \times 10^{-3} }$

$= \frac{2 \times 10^{3} *10^3 *10^{3}}{3 }$

$= \frac{2 \times 10^{3+3+3}}{3 }$

$= \frac{2 \times 10^9}{3 }$

$= \frac{2}{3 } \times 10^9$

=666666666.667

Hence final answer is $\frac{2}{3 } \times 10^9$ which is approx 666666666.667.

3 0

3 years ago

Which of the following numbers is a perfect square? 1 489 2 485 3 490 4 484

nataly862011 [7]

Answer:

3490 is the perfect square

5 0

3 years ago

Read 2 more answers

Refer to the data in the table below to answer the question. (Express percents to the nearest tenth.) You will use some of the a

AnnZ [28]

Answer:Ask your teacher for help!

Step-by-step explanation:

Learn your math and pay attention then you’d know!

4 0

1 year ago