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Alika [10]
2 years ago
8

Lines c and d are perpendicular. The slope of line c is −23. Which equation is true?

Mathematics
1 answer:
Trava [24]2 years ago
4 0

Answer:

1/23

Step-by-step explanation:

The perpendicular slope will be the opposite reciprocal of the original slope so if slope of c is -23, slope of d is 1/23

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PLEASE HELP, WILL GIVE BRAINLIEST IF CORRECT!!!! (08.06 MC) Mike and his friends bought cheese wafers for $2 per packet and choc
maks197457 [2]

Answer:

x = 5 , y = 15

Step-by-step explanation:

You can solve this using substitution.

Let the quantity of cheese wafers be denoted by x and the quantity of chocolate wafers denoted by y

2x + 1y = 25

x + y = 20

These two equations are the answer to part A, (remember to include the above prompt which says what x and y denote).

For part B I used substitution because it was more applicable to the question then addition or elimination.

ACTUAL WORK

Set 2x + 1y = 25 equal to x

x = 25 - y / 2

Replace x with y in the second equation

(25 - y / 2) + y = 20

And solve for y

y = 15

Since we know what y is we can replace y in the second equation and find what x is

x + 15 = 20

Solve for x

x = 5

8 0
3 years ago
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Elenna [48]

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8 0
1 year ago
PLEASE HELP!!!!!
zhuklara [117]

Answer: The probability of picking 7 and then picking a number greater than 7 is \frac{1}{3} or 0.3

Step-by-step explanation: Probability

Probability shows us the chances of an event occurring.

Now, given that we have already picked three cards. therefore, 7, 8, and 9.

The number of possible outcomes is 3.

the probability of card 7,

Now, as card seven is already picked up cards 8 and 9 are the only card left.

therefore, the sample size(possible outcomes) was reduced to 2 only.

Also, cards 8 and 9 both are greater than 7, thus the desired outcome is also 2.

Further the probability of the number greater than 7 occurring,

Probability picking a number greater than 7

The probability of picking a 7 and then picking a number greater than 7

= Probability of card 7 occurring x probability of card 8 and 9 occurring.

You're welcome. Pls give me brainiest

4 0
2 years ago
There are 12 inches in 1 foot. Convert 3 feet to inches.
AVprozaik [17]

Answer:

thirty-six inches

Step-by-step explanation:

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3 years ago
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Physical quantities are identified uniquely by
bezimeni [28]

Answer:

The correct answer is units.

Step-by-step explanation:

A physical quantity must have a determined unit so it has a numerical value assigned to it. A unit is a standardized way to relegate a numerical amount to properties of a specific measurement. For instance, the meter (m), second (s), and kilogram (kg) are specific units that permit us to relegate numbers to estimations of length, time, and mass measurements.

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