3 years ago

About 19.5 million vehicles crossed the Delaware Water Gap Bridge between New Jersey and Pennsylvania in 2002.

Mathematics

1 answer:

marysya [2.9K]3 years ago

5 0

Answer:

1.95 * 10^7

Step-by-step explanation:

19.5 million

write in standard notation

19500000

convert to scientific notation (by making the number such that the largest digit is in the one's place)

1.95 * 10^7

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Is 4 to 7 the same as 7 to 4? Explain why or why not

Pavlova-9 [17]

Yes

Step-by-step explanation:
4×7=28
and 7×4 also equal to 28

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3 years ago

135° Solve for <2. 62 = [?] 45° &2 86° Enter

andrey2020 [161]

Answer:

$\displaystyle \angle2 = {49}^{ \circ}$

Step-by-step explanation:

remember that,

if a side of a triangle is extended then exterior angle so formed equal to the sum of the two opposite interior angles

thus our equation is

$\displaystyle \angle2 + {86}^{ \circ} = {135}^{ \circ}$

cancel out 86° from both sides:

$\displaystyle \angle2 = {49}^{ \circ}$

hence,

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3 years ago

Read 2 more answers

A county's population in 1991 was 147 million. In 1998 it was 153 million. Estimate the population in 2017 using the exponential

aliina [53]

Let t=number of years since 1991.
Then
P(t)=147 e^(kt) ... in millions
P(0)=147 e^(0)=147
P(7)=147 e^(7k)=153
e^(7k)=(153/147)
take ln both sides
ln(e^(7k))=ln(153/147)
7k=0.0400 => k=0.005715

Year 2017=>t=2017-1991=26
P(26)=147e^(26*.005715)=170.55
Answer: in 2017, the projected population is 170.55 millions.

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3 years ago

Y=3x-5\6x+3y=15 solve for x hurry

Lady bird [3.3K]

Answer: x= 2

how i solved: (in photo)

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3 years ago

How do you solve an equation like 2+6+7+20x

Leokris [45]

The answer would be 15 +20x. You have to combine like terms.

2+6+7+20x
8+7+20x
= 15+ 20x (answer)

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3 years ago