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3 years ago

I need to figure out the answer

Mathematics

2 answers:

Natalija [7]3 years ago

7 0

The answer to the problem is 10 because negative 2 squared is 4 plus 14 because negative 2 times negative 7 is 14 minus 8 which gives you 10.

ANEK [815]3 years ago

3 0

Hello there,

If c=-2 just plug in -2 for every c you see.

(-2)²-7(-2)-8
This simplifies to
4+14-8
18-8
10

Hope this helps!

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A box contains 6 black pens, 4 blue pens, and 7 red pens. Without looking, Clarissa randomly picks a black pen out of the box. I

Irina18 [472]

Answer:

31.35%

Step-by-step explanation:

<h3><u>Initial</u><u> </u><u>reading</u><u>:</u></h3>

In the box, there are:

6 Black pens
4 blue pens
7 red pens

Total number of pens in the box = 6 + 4 + 7

<u>= 17</u>

<em>If we count pens as outcomes the total number of possible outcomes are 17</em>.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

<h3><u>New</u><u> </u><u>reading</u><u>:</u></h3>

Clarissa takes out a black pen from the box.

That reduces the number of black pens by 1 which increases the total number of pens by 1 as well.

So now:

Number of black pens = 6 - 1 =<u> 5 </u>
Total number of pens = 17 - 1 =<u> </u><u>16</u><u> </u>

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<h3><u>Probability</u><u>:</u></h3>

$\boxed{ \mathsf{probability = \frac{favorable \: outcomes}{total \: outcomes} }}$

If we want her to pick up a black pen, and she ends up picking one. So, we can say that the outcome is in our favor.

That makes it,

the number of favorable outcomes = number of black pens

= 5

and total outcomes = Total number of pens

= 16

$\implies\mathsf{probability = \frac{5}{16} }$

For showing it as some percent we'll just multiply the fraction by 100

$\implies \mathsf{ \frac{5}{16} \times 100 }$

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<h3><u>As</u><u> </u><u>a</u><u> </u><u>percent</u><u>:</u></h3>

$\implies \mathsf{ \underline{ 31.25 \: \% } }$

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777dan777 [17]

Answer:

<h3>well a line of symmetry is a line that cuts a shape directly in half in this case there is 4 </h3>

Step-by-step explanation:

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Answer:

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Ivenika [448]

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DIA [1.3K]

Answer:

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