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solniwko [45]
3 years ago
6

Three people become infected with a virus that spreads quickly. Each day that passes, the number of infected people doubles. How

can the number of infected people be determined from the number of days that have passed?
A: Raise the number of days to the second power, and then multiply this value by 3.
B: Add the number of days to 3, and then multiply this sum by 2.
C: Multiply the number of days by 2, and then add 3 to this product.
D: Raise 2 to the number of days, and then multiply this value by 3.
Mathematics
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

A: Raise the number of days to the second power, and then multiply this value by 3.

Step-by-step explanation:

if we develop a sequence by understanding the situation, it would be like

3, 6, 12, 24, 48,....

here, it is a geometric sequence having common ratio of r=6/3=12/6=2 and first term a1=3;

for the formula says it would have function like this

Number of infected people=3*2^n^u^m^b^e^r  ^o^f   ^d^a^y^s^

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Answer:

∠B ≅ ∠F ⇒ proved down

Step-by-step explanation:

<em>In the </em><em>two right triangles</em><em>, if the </em><em>hypotenuse and leg</em><em> of the </em><em>1st right Δ ≅</em><em> the </em><em>hypotenuse and leg</em><em> of the </em><em>2nd right Δ</em><em>, then the </em><em>two triangles are congruent</em>

Let us use this fact to solve the question

→ In Δs BCD and FED

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→ That means point D divides CE into 2 equal parts CD and ED

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∴ BD and DF are the hypotenuses of the triangles

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→ From (1), (2), (3), and the fact above

∴ Δ BCD ≅ ΔFED ⇒ by HL postulate of congruency

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∴ ∠BDC ≅ ∠FDE

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2 years ago
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Answer:

y=3x+4

Step-by-step explanation:

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We have been given that the gauge on the bottle indicates that it contains 19 ounces of water after it has been filling for 5 seconds. After it has been filling for 11 ​seconds, the gauge indicates the bottle contains 37 ounces of water.

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Let us find y-intercept by substituting m=3 and coordinates of point (5,19) in slope intercept form.

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