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3 years ago

14

Determine if the expression -c2 + 2c4 is a polynomial or not.

1 answer:

VARVARA [1.3K]3 years ago

6 0

Answer:

5

Step-by-step explanation:

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8. find the simplified form of the expression. give your answer in scientific notation. (3 x 10^6) (8 x 10^-4) a) 1.1 x 10^3 b)

andrew-mc [135]

(3 x 10^6)(8 x 10^-4) = (3 x 8) x 10^(6 - 4) = 24 x 10^2 = 2.4 x 10^3

5 0

3 years ago

please help me with this, I don’t just want an answer only, I’d love a clear explanation so I could understand I’ll give brainli

sertanlavr [38]

The area of a circle in this case is 3.14x r x r (r stands for the radius) right? So if we know what the radius is (1.2 cm) we can plug it in and have 3.14x1.2x1.2 which would be 4.5216 cm^2

6 0

3 years ago

Solve: -3 + 7 -5 + (-10)

alexira [117]

Answer:

it is -11 because use the cauculator lol

3 0

4 years ago

Read 2 more answers

Need help with problem 40,41 and 42! 15 points

vovikov84 [41]

Answer:

40) w = 32/3

41) x = 23/4

42) w = 1/12

Step-by-step explanation:

40) Real world problem:

If Lisa takes $7\frac{3}{8}$ of the pie from a total of $w$ slices, then the remaining pie is $3 \frac{7}{24}$ . Find w.

So, the equation would become:

$w - 7 \frac{3}{8} = 3 \frac{7}{24}$

$\implies w = 3 \frac{7}{24} + 7 \frac{3}{8}$

This can be written as:

$w = 3 + \frac{7}{24} + 7 + \frac{3}{8}$

This is equivalent to $3 + \frac{7}{24} + 7 + \frac{9}{24}$

Since, the denominator is the same, the numerators can be added now.

$\implies w = 10 + \frac{16}{24}$

$\implies w = 10 + \frac{2}{3}$

$i.e., w = 10 \frac{2}{3} = \frac{32}{3}$

Hence, the answer is 32/3.

41) The given equation is: $2 \frac{1}{2} + x = 8\frac{1}{4}$

$2 \frac{1}{2} = \frac{5}{2}$ and

$8 \frac{1}{4} = \frac{33}{4}$

So, $x = \frac{33}{4} - \frac{10}{4}$

$\implies x = \frac{23}{4}$

The answer is 23/4.

42) The given equation is $$ w - \frac{1}{3} = \frac{5}{12}$

$\implies w = \frac{5}{12} - \frac{1}{3}$

$w = \frac{5}{12} - \frac{4}{12}$

$w = \frac{1}{12}$

The answer is 1/12.

7 0

3 years ago

An arithmetic sequence has a 10th term of 17 and a 14th term of 30. find the common difference

IrinaVladis [17]

The common difference is 3.25
Hope this helps

5 0

4 years ago