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makvit [3.9K]
2 years ago
9

Helppppppppppppppppp I will give brainliest plsssss​

Mathematics
1 answer:
Helga [31]2 years ago
8 0

Answer:

1.Y=--4x+5

2.Y=1/3x-3

Step-by-step explanation:

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Could someone help me
Mekhanik [1.2K]

Answer:

the third one and the last one is correct

Step-by-step explanation:

we already know the second one is wrong because of it's set up.

just replace the points (-1,7) into each equation. if it doesn't work then move on to the next one. if it does work, then use that same equation except this time to the coordinates (2,4)

5 0
3 years ago
WILL GIVE BRAINLIEST!!!!
Vesna [10]

(2^8 \times 5^{-5} \times 19^0)^{-2} \times (\dfrac{5^{-2}}{2^3})^4 \times 2^{28} =

= 2^{-16} \times 5^{10} \times 1 \times \dfrac{5^{-8}}{2^{12}} \times 2^{28}

= 2^{-16} \times 5^{10} \times 5^{-8} \times 2^{-12} \times 2^{28}

= 2^{-16} \times 2^{-12} \times 2^{28} \times 5^{10} \times 5^{-8}

= 2^{-16-12+28} \times 5^{10-8}

= 2^{0} \times 5^{2}

= 1 \times 25

= 25

7 0
2 years ago
Evaluate the following expression when x=-4 and y=4<br> x³-x /4y<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7By%7D" id="Tex
Simora [160]

Answer: - 60

Step-by-step explanation:

\frac{(-4)^3 - (-4)}{4(4)^-4/4} \\\\= -60

7 0
2 years ago
a cell phone company found that 15 of their phones sold in June were defective. The company sold 250 phone in June. How many of
larisa [96]

Write and solve an equation of ratios, as follows:


15 250

----- = ------- = 10/12.

x 300

Then 15(12) = 10x, and x = 18. The company could well predict that 18 out of the 300 phones it sells in July will be defective, based upon past history.

6 0
3 years ago
John had 2/3 of his homework complete, Sarah had 5/10, Alex 7/8, and Michelle 1/2. Who competed the most of the homework assignm
ozzi
Alex definitely had the most work done between all of them
7 0
3 years ago
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