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3 years ago

Which lines are perpendicular to 3x + 6y = 5? Select all that apply.

Mathematics

1 answer:

tester [92]3 years ago

3 0

Answer:

Answer choices D, A, and C.

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I NEED THIS ANSWERED ASAP PLEASE HELP!!! select the correct answer for points

krek1111 [17]

Answer:

C. 120°

Step-by-step explanation:

length of arc = 4π cm

r = 6 cm

central angle = s/r

=> central angle = 4π/6

=> central angle = 2π/3 radians

In degrees,

central angle = (2π/3)(180/π) = 120°

hope this helps and is right. p.s i really need brainliest :)

5 0

3 years ago

if two events have the probability which sum to 1 they are called ______ events (hint:it starts with co.)

MariettaO [177]

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6 0

3 years ago

Read 2 more answers

Prove the following identity showing all steps:

kiruha [24]

Answer:

See solution below

Step-by-step explanation:

Given the expression

$\frac{cos(x+30)-sin(x+60)}{sin(x)cos(x)} \\$

Recall that

cos x = sin(90-x)

cos(x+30 ) = sin (90-(x+30)

= sin(90-x-30)

= sin(60-x)

Substitute

$\frac{sin(60-x)-sin(x+60)}{sin(x)cos(x)} \\= \frac{sin60cosx-cos60sinx)-sinxcos60-cosxsin60)}{sin(x)cos(x)} \\= \frac{-2cos60sinx)}{sin(x)cos(x)} \\= \frac{-2(1/2)sinx)}{sin(x)cos(x)} \\= \frac{-1}{cos(x)}\\= \frac{1}{cos(x)}\\ \\= -sec(x) Proved$

8 0

3 years ago

Gabe goes to the mall. If d is the number of items he bought, the expression 16.62d gives the amount he spent in dollars at one

Degger [83]

Answer:

1. 16.62d + 26 = m 2. $152.34

Step-by-step explanation:

For the first part of the question you put the unknown variable multiplied by 16.62. Then add 26 which equals an unknown variable. For the second part, I multiplied 16.62 by 7 and added 26.

5 0

3 years ago

Read 2 more answers

Bud's cheeseburger and fries contained 1310 milligrams and 350 milligrams of sodium, respectively. Together they contained 66.4%

Serhud [2]

Answer:

The recommended daily intake of sodium for a 2000 calorie diet is 2500 mg.

Step-by-step explanation:

In order to calculate the daily intake of sodium we first need to calculate the mass of sodium present in both snacks, this is given by their sum.

$\text{total sodium} = 1310 + 350 = 1660 \text{ mg}$

We can now apply a rule of three for which the total sodium from the snacks is related to 66.4% in the same proportion as "x" mg, which is the value we want to know, is related to 100%. So we have:

$\frac{1660}{x} \frac{mg}{mg} = \frac{66.4\%}{100\%}$

$66.4*x = 1660*100\\x = \frac{166000}{66.4} = 2500 \text{ mg}$

The recommended daily intake of sodium for a 2000 calorie diet is 2500 mg.

5 0

4 years ago