4 years ago

Help with 8 9 and 10

Mathematics

1 answer:

Rainbow [258]4 years ago

6 0

9. 2.86600.... that is all i know so far

You might be interested in

Abby counts 12 large boxes and 18 small boxes of pencils in the supply cabinet. Each large box contains 144 pencils. Each small

Maru [420]

The total number of pencils is 2,160. When estimating to the nearest hundredth one gets 2,200, which is an underestimate.

The advantage of underestimating is that your answer is more accurate than an overestimate.

3 0

4 years ago

Helppppppppppppppppppp I’ll mark you brainlist don’t respond if you’re going to put something random I will report you :)

iren2701 [21]

Alternative exterior angles

6 0

3 years ago

Read 2 more answers

Can you please help me answer this question what's a+3

Inessa [10]

Answer:

a+3

Step-by-step explanation:

You cannot go any further in answering this question. These two terms are not like terms so they cannot be combined. Therefore, the answer is just a+3 itself.

7 0

3 years ago

Is the sum of the areas of two smaller squares equal to the area of a large square if the sides lengths of the squares are 8 fee

77julia77 [94]

No.
The sum of the areas of the two smaller squares is 5^2 + 3^2 = 34
The area of the larger square is 8^2=64
34 does not = 64

5 0

3 years ago

A = x² + xy +2y-1<br>A+B= 2x² - xy - 4y-1<br>a) find A-B<br>b) if (A-B) = X<br>find y

Alinara [238K]

Answer:

see explanation

Step-by-step explanation:

Given the 2 equations

A = x² + xy + 2y - 1 → (1)

A + B = 2x² - xy - 4y - 1 → (2)

From (2)

B = 2x² - xy - 4y - 1 - A

= 2x² - xy - 4y - 1 - (x² + xy + 2y - 1) ← distribute parenthesis

= 2x² - xy - 4y - 1 - x² - xy - 2y + 1 ← collect like terms

= x² - 2xy - 6y

Hence

A - B = x² + xy + 2y - 1 - (x² - 2xy - 6y) ← distribute parenthesis

= x² + xy + 2y - 1 - x² + 2xy + 6y ← collect like terms

= 3xy + 8y - 1

(b)

Given A - B = x, then

x = 3xy + 8y - 1 ( add 1 to both sides )

x + 1 = 3xy + 8y ← factor out y from each term

x + 1 = y(3x + 8) ← divide both sides by (3x + 8)

y = $\frac{x+1}{3x+8}$

3 0

3 years ago