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qwelly [4]
2 years ago
14

PLs help me 30 points in total

Mathematics
1 answer:
Rzqust [24]2 years ago
3 0

Answer:

5. 11 1/12 or 133/12

6. 8/15

Step-by-step explanation:

5. make them have a common denominator and then add

6. multiply 2/3 * 4/5

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Resolva pelo método da adição:<br> {2x + 3y = 26<br> {3x + 2y =19
Lynna [10]

(6x+9y=78) - (6x+4y=38) = (5y=40) = y=8

(2x+3(8)=26) = (2x+24=26) = (2x=2) = x=2


5 0
3 years ago
X^2+10x+19=0 complete the square PLEASE EXPLAIN
wlad13 [49]

Answer:

Step-by-step explanation

In the form ax^2+bx+c

a x c should equal two factors of b

However, in this equation

1 x 19 has no factors that = 10

so you must use the Quadratic Formula which is,

x = \frac{-b+-\sqrt{b^2-4ac} }{2a}

so the answer should be

x = \frac{-10+-\sqrt{10^2-4(1)(19)} }{2(1)}

x = \frac{-10+-\sqrt{24} }{2}

x = \frac{-10+2\sqrt{6} }{2}      and    x = \frac{-10-2\sqrt{6} }{2}

8 0
3 years ago
Anyone know what company has a greater rate per window and explain please.
Troyanec [42]

Answer:

Company B

Step-by-step explanation:

Company A charges 25 per window, company b charges 40 per window, and company c charges 35 per window so company b has the highest rate

6 0
3 years ago
Read 2 more answers
PLaseeee heeeeelpoppppppppppppppppppppppppppppppp
liq [111]

Answer:

2) b-1

3) 2c

4) d+1

5) e-3

6) f/2

7) 4×g

8) 3×h

9) 3÷i

10) j+4

11) 2k+1

12) 2l-2

13) m/2+3

5 0
3 years ago
Round your answer to one decimal digit. The volume of a cylinder is 1800cm squared. if the height of the cylinder is 40cm then t
jonny [76]

_____________________________________

\sf\huge\underline\red{SOLUTION:}

Use formula:

\sf{V = \pi(\frac{d}{2})^2h}

Solving for diameter:

\sf d = 2 \times  \sqrt{ \frac{V}{\pi h} }  \\ \sf = 2 \times   \sqrt{ \frac{40}{\pi \times 1800} } \approx0.16821 \\  = \sf \large\boxed{\sf{\green{d = 0.17}}}

\sf\huge\underline\red{FINAL \: ANSWER}

\large\boxed{\sf{\green{d=0.17}}}

_____________________________________

✍︎ꕥᴍᴀᴛʜᴅᴇᴍᴏɴǫᴜᴇᴇɴꕥ

✍︎ᴄᴀʀʀʏᴏɴʟᴇᴀʀɴɪɴɢ

8 0
3 years ago
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