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dezoksy [38]
3 years ago
15

1. (2,7); m=-4 What’s the answer?

Mathematics
1 answer:
Nataly_w [17]3 years ago
4 0

Answer:

4x + y = 15 or y = -4x + 15

Step-by-step explanation:

7 = 2[-4] + b

-8

15 = b

y = -4x + 15

If you want it in <em>Standard </em><em>Form</em>:

y = -4x + 15

+4x +4x

___________

4x + y = 15 >> Line in <em>Standard Form</em>

I am joyous to assist you anytime.

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PLEASE HELP.. How do you do this?
juin [17]

Answer:

Step-by-step explanation:

(7x-5)(6x+10)=0

42x + 70x - 30x - 50 = 0

82x = 50

x = 50/82

3 0
3 years ago
A laptop was originally sold for $975. The laptop is now on sale for $828.75.The percent markdown must have been...
Sonja [21]

Answer:

15% markdown

Step-by-step explanation:

To find the percent markdown

Take the original price minus the new price

975-828.75

146.25

Divide by the original price

146.25/975

.15

Change to percent form

15% markdown

5 0
2 years ago
From his home, Dan would have to walk due north to get to his friend Samuel's house and due east to get to his friend Cindy's ho
maksim [4K]

The distance from Dan's house to Samuel's house is 4 km

The distance from Dan to Samuel house, Dan to Cindy house and Samuel to Cindy house forms a right angled triangle.

Distance from Dan to Samuel house = x, Distance from Dan to Cindy house = 3 km and Distance from Cindy to Samuel house = 5 km

Pythagoras theorem shows the relationship between the lengths of a right angled triangle.

Using Pythagoras theorem:

5² = x² + 3²

25 = x² + 9

x² = 16

x = 4 km

Hence the distance from Dans house to Samuel's house is 4 km

Find out more at: brainly.com/question/21846482

4 0
3 years ago
9=-7x+7x^2 Helppp please
8_murik_8 [283]

Answer:

x= 0.21428571428 or x=0.2

Step-by-step explanation:

-7x+7x^2=9  1. simplify 7x^2

-7x+ 7x(7x)=9   2. combine like terms

-7x+49x=9    3. combine like terms

42x=9           4. /42 on both sides

x= 0.21428571428 or x=0.2

8 0
2 years ago
Which question should you expect to be answered with variable data?
Paladinen [302]

Answer:

B-How many books have each of my classmates read this year?

Step-by-step explanation:

Every year the number of books each classmate read would be different

5 0
3 years ago
Read 2 more answers
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