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Akimi4 [234]
3 years ago
13

Simplify and put in a Sipmplified expression: 16x2-5+ 6x - 7x2

Mathematics
1 answer:
irga5000 [103]3 years ago
4 0

Answer:

  9x^2 +6x -5

Step-by-step explanation:

The x^2 terms are like terms and can be combined.

  16x^2 -5 +6x -7x^2

  = (16 -7)x^2 +6x -5

  = 9x^2 +6x -5

_____

<em>Additional comment</em>

The expression is in standard form when the terms are in decreasing order by their degree.

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A circular flower bed is 22 m in diameter and has a circular sidewalk around it that is 4 m wide. Find the area of the sidewalk
antoniya [11.8K]

Answer:

326.6 m^2

to nearest tenth.

Step-by-step explanation:

The radius of the flower bed = 1/2 * 22 = 11m

The radius of the whole area included the sidewalk = 11 + 4 = 15 m

So the area of the sidewalk = area of the whole - area of flower bed

= 3.14 * 15^2 - 3.14* 11^2

= 326.6 m^2.

6 0
3 years ago
Name two different numbers that round to 30 when rounded to the nearest ten
andrew11 [14]

For this case we have the following definition:

tens place: number of two digits whose absolute value is greater than zero.

Then, we have the following rounding rule:

If the previous number is greater than or equal to five, the next number increases by one unit.

We then have the following numbers rounded to 30 when rounded to the nearest ten:

26: twenty-six

27: twenty-seven

Answer:

two different numbers that round to 30 when rounded to the nearest ten are:

26: twenty-six

27: twenty-seven

6 0
3 years ago
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What is the point of algebraic geometry?
Dmitry [639]

Answer:

Algebraic geometry is a branch of mathematics that deals with the study of solutions of polynomials with multiple variables. It involves the study of the shapes formed by these polynomials and analyzing them from a geometrical perspective.

Step-by-step explanation:

4 0
3 years ago
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Answer ASAP
anygoal [31]

Answer:

m less-than-or-equal-to 17

Step-by-step explanation:

First, arrange an equation for this calculation:

t = total cost

m = miles

1.25+ 0.75m <= t

Put 14 into t because $14 is the maximum funds he has:

1.25 + 0.75m = 14

Solve the equation by moving over the 1.25 flat fee, don't forget to reverse the operation (addition to subtraction):

0.75m = 14 - 1.25

0.75m = 12.75

Now, solve the equation by dividing both sides by 0.75 to find the m:

m = \frac{12.75}{0.75}

m = 17

So Henri has enough to travel 17 miles, meaning that the phrase "m less-than-or-equal-to 17 " is correct, as he could theoretically travel 17 miles or anything lower.

Hope this helps!

4 0
3 years ago
Round 3193.55767741 to the nearest thousand.
Paul [167]

Answer:

3193.558

Step-by-step explanation:

cancel the digits after decimal points and keep the digits till thousandths palce

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3 years ago
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