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SIZIF [17.4K]
3 years ago
9

Plz help. i need an answer ASAP

Mathematics
1 answer:
lidiya [134]3 years ago
5 0
Take the coordinates on each line and find their related slopes:

Slope formula m= (y₂-y₁)/(x₂-x₁)

1st . The two given coordinates of the LOWER line are: (-1,-1) and (1,-2)
them m = (-2+1)/1+1)  = -2/2 = -1

2nd. The two given coordinates of the HIGHER line are: (-1,2) and (1,1)
them m = (1-2)/(1+1)  = -1/2

3rd. The two given coordinates of the SECANTE are: (1,0) and (2,2)
them m = (2-0)/(2-1)  = 2/1 = 1

We notice that the 1st line has m = -1 and the 3rd (secant), m = 1, then only the 1st line and the secant are perpendicular because the product of their slope is equal - 1 (this is the condition to have perpendicular lines)

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What is the product property of radicals? Question 4 options:
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7 0
3 years ago
Please help me with this math question, It's worth 30 points for whoever want's to answer.
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8 0
2 years ago
Lins father is paying $20 for a meal. He has 15%-off coupon for the meal. After the discount, 7% sales tax is applied, How much
tankabanditka [31]

Answer: $18.19

Step-by-step explanation:

The tax is applied after the discount so first find the discounted price:

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The sales tax of 7% can then be applied:

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3 0
3 years ago
I need to have this done by tonight and I don’t know what to put
a_sh-v [17]

Answer:

A. Option 1

Sign up cost = 0

1 Month = 125

2 Months = 150

3 Months = 175

4 Months = 200

Step-by-step explanation:

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5 0
2 years ago
How do you simplify the radical: square root of 28
Lilit [14]

Answer:

√

28

Rewrite

28

as

2

2

⋅

7

.

Tap for more steps...

√

2

2

⋅

7

Pull terms out from under the radical.

2

√

7

The result can be shown in both exact and decimal forms.

Exact Form:

2

√

7

Decimal Form:

5.29150262

…

Step-by-step explanation:


3 0
3 years ago
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