3 years ago

Need help please as soon as possible

Mathematics

2 answers:

Strike441 [17]3 years ago

6 0

I think the answer is c

astraxan [27]3 years ago

4 0

Answer:

answer is either c or b. I am not sure though

Step-by-step explanation:

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Please help me with this

kupik [55]

Answer:

–x² + 12x + 5

Step-by-step explanation:

x² + 3x

–2x² + 9x + 5

The sum of the above expression can be obtained as follow:

.... x² + 3x

+ –2x² + 9x + 5

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

–x² + 12x + 5

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

Thus, the sum of x² + 3x and –2x² + 9x + 5 is –x² + 12x + 5

3 0

3 years ago

What is the mean of the values in the dot plot?

kari74 [83]

Answer:

Mean = 19.5

Step-by-step explanation:

Mean = sum of numbers ÷ Amount of numbers

Mean = $\frac{16+17+17+17+17+19+19+19+19+21+22+22+23+25}{14}$

Mean = $\frac{273}{14}$

Mean = 19.5

3 0

3 years ago

Can someone help me please?

shusha [124]

So, if the page is 12 inches wide, that's the width of the page, 12, minus the width of the photo, 7 1/2. 12 - 7 1/2 = 4 1/2.
Now, we need to divide 4 1/2 by 2, so it will be even on both sides.
4 1/2 divided by 2 = 2 1/4.
He should put the picture 2 1/4 inches from each side of the page.

8 0

3 years ago

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What are the unknown measures of the congruent polygons?

ddd [48]

30mm is the missing angel

8 0

3 years ago

each qyestion mark is a missing exponent. find the value of the exponent and match each correct answer to complete the riddle be

pishuonlain [190]

Please find attached photographs for your answer.

4 0

3 years ago