3 years ago

Given f(x) =2x+3 what is the value of f(-5)

Mathematics

1 answer:

Strike441 [17]3 years ago

6 0

Answer: If f(x) = 2x + 3, f(-5) = -7

Step-by-step explanation:

You replace the x in the equation with 5 and then distribute and add.

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Alika [10]

Answer:

Explanation:

8 0

3 years ago

6. If you need to dissolve 8 tablets of active ingredient B, each containing 3 mg, in 15,750 mL, what is the ratio strength (w/v

Nuetrik [128]

Answer:

1 : 656250

Step-by-step explanation:

It is given that we need to dissolve 8 tablets of active ingredient B, each containing 3 mg, in 15,750 mL.

Tablets = 8

Weight of each tablet = 3 mg

Total wight of tablets = 8 × 3 = 24 mg

Total volume = 15,750 mL.

1 mL = 1000 mg

Total volume = 15,750000 mg

We need to find the ratio strength (w/v).

$Ratio=\frac{\text{Total wight of tablets}}{\text{Total volume}}$

$Ratio=\frac{24}{15,750000}$

$Ratio=\frac{1}{656250}$

Therefore, the ratio strength (w/v) is 1 : 656250.

3 0

3 years ago

Which of the following has a value of 8^4

Finger [1]

Because 8^4 equals 4096

3 0

4 years ago

Read 2 more answers

Y=4x−5<br> y=2x+3<br> <br> is (4,11) part of the system

pentagon [3]

Answer:

Yes

Step-by-step explanation:

If (4,11) is part of the system, it should satisfy both equations

y = 4x - 5

11 = 4(4) - 5

11 = 16 - 5

11 = 11 is a true statement

y = 2x + 3

11 = 2(4) + 3

11 = 8 + 3

11 = 11 is a true statement

Since (4,11) satisfies both the equations, it is part of the system

6 0

3 years ago

What was the average speed of the Luna 1?

Studentka2010 [4]

Answer:

The average speed was about 6,000 kilometers (or 3,200-3,700 miles)

Step-by-step explanation:

hope this helps!

8 0

3 years ago