3 years ago

Divide 42x3 + 21x2 − 35x by 7x using long division and showing work

1 answer:

4 0

<span>42x^3+21x^2-35x divided by 7x comes out to

42x^3 21x^2 35x
-------- + --------- - --------
7x 7x 7x

Reducing these 3 fractions, we get 6x^2 + 3x - 5 (answer)</span>

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Lisa [10]

Answer:

B. 200 doses

Step-by-step explanation:

Given,

1 dose is required for 100 mg,

Since, 1 mg = 0.001 g,

⇒ 100 mg = 0.1 g

⇒ 1 dost is required for 0.1 g,

Thus, the ratio of doses and quantity ( in gram ) is $\frac{1}{0.1}=10$

Let x be the doses required for 20 grams,

So, the ratio of doses and quantity is $\frac{x}{20}$

$\implies \frac{x}{20}=10$

$\implies x=200$

Hence, 200 doses can be obtained from 20 grams of the drug.

Option 'B' is correct.

8 0

2 years ago

When a bush was first planted in a garden it was 12 inches tall after two weeks it was 120% as tall when it was first planted ho

Juliette [100K]

14.4, 120% of 12 is 100+20, 12+2.4 is 14.4

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2 years ago

Given f(x)=2x+1 and g(x)=7-x. Find g(f(x)).

Darina [25.2K]

Answer:

f(g(x)) = 2(7 - x) + 1

Step-by-step explanation:

f(x) = 2x + 1

g(x) = 7 - x

The question in the picture itself says to find f(g(x)) so i'll find that instead

f(g(x)) = 2(7 - x) + 1

f(g(x)) = 14 - 2x + 1

f(g(x)) = -2x + 15

6 0

2 years ago

I will mark brainliest please help me on this question!

Tanzania [10]

It’s option a I have done the assignment myself

5 0

3 years ago

Which table of values will generate this graph?

pashok25 [27]

Answer:

it is the third one

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers