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Alex17521 [72]
3 years ago
8

Had to do it to em

Mathematics
2 answers:
ohaa [14]3 years ago
6 0

Answer:

A is the correct answer

Step-by-step explanation:

When x =4 and y =-5, and you want to evaluate equation -3x+2y, you just have to apply it into the equation.

We got the equation as:

= -3x + 2y

= -3*4 + 2*(-5)

= -12 + (-10)

= -12 - 10

= -22

Hope this help you :3

oksian1 [2.3K]3 years ago
6 0

Answer:

Step-by-step explanation:

First you plug in the numbers 4 into x and -5 into y.

-3(4) + 2(-5)

-3(4) is -12, 2(-5) is -10

-12 - 10

the answer is a) -22

Hope this helped ! ;)

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Two cards are drawn from a deck of 52 playing cards. The first card is replaced into the deck before the 2nd card is drawn. What
Firlakuza [10]

Answer:

1/676

Step-by-step explanation:

There are 52 cards

P(Ace of spades) = Number of aces of spades / total = 1/ 52

The replace the card

There are 52 cards

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P(king) = number of kings / total = 4/52 = 1/13

P( ace of spades , replace, any king) = 1/52 * 1/13 = 1 /676

5 0
3 years ago
Archimedes was asked by his king to figure out a way of telling if people were giving him fake gold objects. That was when Archi
klio [65]

Answer:

See explanation below

Step-by-step explanation:

Archimedes was able o obtain the actual volume of the supposedly gold made object by collecting the water displaced by the object as it was sunk on a bowl filled with water to the rim. Then knowing the volume displaced and therefore the volume of the object, he could find the object's density (mass over volume). The mass he could get just by weighting the object. and compare that with the density of any other object made of real gold (like for example a coin) and see if the quotient was the same. The density of both objects should be the same if they are made of the same material.

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3 years ago
Students in health class are tracking how much water they consume each day. Evelyn has two reusable water bottles: a small one a
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Answer:

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2 years ago
Which of the following values are in the domain of the function graphed below? Check all that apply.
skad [1K]
7, 3, 2, 0 are in the domain of the function.
5 0
3 years ago
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Solve the equation -7(2m-6) + 21=-77
Svetllana [295]

Answer:

m=10

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−7(2m−6)+21=−77

(−7)(2m)+(−7)(−6)+21=−77(Distribute)

−14m+42+21=−77

(−14m)+(42+21)=−77(Combine Like Terms)

−14m+63=−77

−14m+63=−77

Step 2: Subtract 63 from both sides.

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Step 3: Divide both sides by -14.

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6 0
3 years ago
Read 2 more answers
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