2 years ago

What are the vertex and x-intercepts of the graph of y= x2 - 4x - 21? Select

Mathematics

1 answer:

andreev551 [17]2 years ago

5 0

The answer is c and e.

Hope this helps!

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180 degrees clockwise is parallel ?

aivan3 [116]

Answer:

may we please have some more info on the question?

Step-by-step explanation:

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2 years ago

For the equation, complete the solution. 8x + y = −7 <br> (x, y) = , 1

butalik [34]

Answer:

(x, y) = (-1, 1)

Step-by-step explanation:

8x + y = −7

for y = 1

8x + 1 = -7

subtract 1 from boh sides

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2 years ago

John sent 1,302 text messages in 6 weeks, How many texts was he sending per week (At what rate was he sending texts per week)?

Llana [10]

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2 years ago

Read 2 more answers

Lisa [10]

Answer:

B. 200 doses

Step-by-step explanation:

Given,

1 dose is required for 100 mg,

Since, 1 mg = 0.001 g,

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⇒ 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.

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2 years ago

A train traveled the first 200 miles of its trip at a speed of 50 mph and the next 130 miles at a speed of 65 mph. What was the

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2 years ago