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antoniya [11.8K]
3 years ago
12

What is an equation of the line that passes through the points (1, 2) and (2, -1)?

Mathematics
1 answer:
Jet001 [13]3 years ago
8 0

Answer: m = -3

............................

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Please help with this question ​
zalisa [80]

Answer:

4cm^2

Step-by-step explanation:

First we need to find the length of the height of the triangle using Pythagoras:

a^2+b^2=c^2 (Substitute in what we have)

a^2+3√2(^2)=2√5(^2)   =   a^2 + 18 = 20 -> 20-18=2 √2=BD

Now we can find the area:

AD+DC= 3√2 + √2 = 4√2 x √2 = 8/2 = 4

6 0
2 years ago
I will mark brainlest <br><br> What is (-5) - (-98)<br><br> lol I am just doing this for fun
denpristay [2]

Step-by-step explanation:

( - 5) - ( - 98) \\ ( - 5) + 98 = 93

6 0
2 years ago
Read 2 more answers
Taylor earned $48 for 6 hours of babysitting and $68 for 8.5 hours of babysitting. How long would she have to babysit to earn $3
ZanzabumX [31]
48÷6=$8 per hour
So
32÷8=4 hours
6 0
3 years ago
Withdrawing $10 every week from an outstanding balance<br> of $400
SSSSS [86.1K]
400-10x. X is how many weeks
4 0
2 years ago
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If f(x)=2x+7 and g(x)=11x-4, find (f+g)x.
klemol [59]

Answer:

(f+g)(x) = 13x + 3

Step-by-step explanation:

Rewrite  f(x)=2x+7 and g(x)=11x-4 in columns, as follows:

f(x)=2x+7

+g(x)=11x-4

----------------

Now add each column separately.

f(x)+g(x) = (f+g)(x) ("the sum of functions f and g")

2x + 11x = 13x, and, finally, 7-4 = 3.


Therefore,

 f(x)=2x+7

+g(x)=11x-4

----------------

(f+g)(x) = 13x + 3

7 0
3 years ago
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