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3 years ago

Evaluate the expression when b= 2 and c=-5. -b+6c

Mathematics

2 answers:

Reil [10]3 years ago

8 0

Answer:

- 32

Step-by-step explanation:

- b + 6 c

Where we've

b = 2 and c = -5

- ( 2 ) + 6 ( -5 )

- 2 - 30

BARSIC [14]3 years ago

6 0

Answer:

-32

Step-by-step explanation:

- 2 + 6 * -5 = -32

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in a bag of keys there are 15 silver keys six black keys 11 copper keys and two painted keys of various colors. one key is drawn

Setler79 [48]

Answer:

The best thing to do here is to put each of these into fractions, with the total (31) as the denominator.

14/31= silver

6/31= black

8/31= copper

3/31= various colours.

As you're looking for the keys that are silver or copper, you've got to add the two denominators together, which gives you 14+8= 22.

This cannot be simplified further, therefore, the probability of choosing either a silver or copper key is 22/31.

Hope this answer helps you :)

Have a great day

Mark brainliest

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3 years ago

Which two lines must be parallel in the diagram?

djverab [1.8K]

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Step-by-step explanation:

only j and k are explicitly shown to be 90 degrees, so they must be parallel since they have the same angle when intersected by line <em>l.</em>

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3 years ago

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kotykmax [81]

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that is 3x³ + 7x - 26 + x + 2 = 3x³ + 8x - 24

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3 years ago

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The BP station sold gas for $2.49 per gallon. This week their gas prices are $2.61 a gallon. What was the percent increase in ga

Karolina [17]

Answer:

.12%

Step-by-step explanation

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2 years ago

the amount of water in a bathtube as it drains can be modeled by this equation with y representing the number of gallons of wate

koban [17]

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We can conclude that after 3 minutes <span>the tub will have 17.8 gallons of water remaining.</span>

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3 years ago