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2 years ago

Which lines are perpendicular to 2x−7y=−25? Select all that apply.

Mathematics

2 answers:

PtichkaEL [24]2 years ago

7 0

A because it is the right answer

Dima020 [189]2 years ago

5 0

Answer:

B and D

Step-by-step explanation:

slope = 2/7

perpendicular equals negative reciprocal

so slope must be -7/2

A = 2/7

B = -7/2

C = 7/2

D = -7/2

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Rewrite the expression as an equivalent power with a negative exponent. a. 1/49 b. 27/125

Hunter-Best [27]

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3 years ago

Explain to me how to do this please

nataly862011 [7]

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3 years ago

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Zolol [24]

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3 years ago

A retailer sold an electric item to a customer at a loss of 10 percent the customer purchase it for rs 25425 including 13, perce

Mashutka [201]

Answer: Rs 25,000

Step-by-step explanation:

Given

Retailer sold an electric iron to a customer at a loss of 10%

Suppose the Cost price of iron is $x$

So, selling price is $0.9x$

This price must be equal to $25425$ + VAT

$\Rightarrow 0.9x=25425-0.13(0.9x)\\\Rightarrow 0.9x+0.117x=25425\\\Rightarrow 1.017x=25425\\\Rightarrow x=\text{Rs }25,000$

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5 0

2 years ago

X over 2 +2= 15 two step equations

Fed [463]

Answer:

$\boxed{\boxed{\sf x=84}}$

Step-by-step explanation:

$\sf \cfrac{x}{6} +2=16$

Multiply both sides of the equation by 6:

$\sf x+12=96$

Subtract 12 from both sides:

$\sf x=96-12$

Subtract 12 from 96:

$\sf x=84$

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3 0

1 year ago

Read 2 more answers