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2 years ago

451 mi + 7.2 hr = _ _ (Round to the appropriate number of significant digits.)

Mathematics

1 answer:

gladu [14]2 years ago

8 0

Answer:

Step 1: Enter the number in the respective input field

Step 2: Now click the button “Solve” to get the answer

Step 3: Finally, the significant figures of the number will be displayed in the output field

What is Meant by Significant Figures?

In Mathematics, the significant figures define the number of important single digits that contribute to the degree of accuracy of the given number. The five important rules for the significant figures are as follows:

All the non zero numbers are significant figures

The zero present in between the non zero numbers are significant figures

The leading zeros are not significant

The trailing zeros present at the right side of the decimal point are significant figures

Trailing zeros of the number without a decimal point are not significant figures

The trailing zeros present in the whole number with the decimal point are significant figures

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What are two expressions where the solution is 41

Elanso [62]

40+1
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4(10)+1
410/10

There are a lot of answers

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3 years ago

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Draw a number line and mark all described points. 5x<12

attashe74 [19]

Answer:

x < 2.4

Step-by-step explanation:

5x < 12

x < 12/5

x < 2.4

On the number line, draw an arrow going towards left from 2.4, with an open circle at 2.4

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3 years ago

The tunnel of fear ride climbs straight up to its peak 50 meters above the ground. Then, it drops 65 meters into an underground

Maurinko [17]

Answer:

-15 meters

Step-by-step explanation:

The tunnel of fear starts at 0 meters, goes up to 50 meters, then drops 65 meters. This expressed as an equation is:

(0+50)-65=x

50-65=x

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8 0

3 years ago

Solve this system of equations using substitution, show your work (ANSWER QUICK PLEASE)

melisa1 [442]

Answer:

$\boxed{\sf{y=-50 \quad x=3}}$

Step-by-step explanation:

Isolate the term of x and y from one side of the equation.

First, you have to substitute.

$\sf{y=-15x-5=11x-15x-5=-17}$

Then, you solve.

$\sf{-4x-5=-17}$

Add by 5 from both sides.

-4x-5+5=-17+5

Solve.

-17+5=-12

-4x=-12

Divide by -4 from both sides.

-4x/-4=-12/-4

Solve.

-12/-4=3

y=-15*3-5

Solve.

PEMDAS stands for:

Parenthesis
Exponents
Multiply
Divide
Add
Subtract

15*3=45

Rewrite the problem down.

y=-45-5

Solve.

<u>Therefore, the correct answer is y=-50 and x=3.</u>

I hope this helps you! Let me know if my answer is wrong or not.

3 0

2 years ago

Zoey wants to use her iPad throughout a 6-hour flight. Upon takeoff, she uses the iPad for 2 hours and notices that the battery

lilavasa [31]

Answer:

The answer is c. 8 hours

Step-by-step explanation:

Since her battery dropped 25% in 2 hours then for it to drop 100% would take 8 hours.

25%+25%+25%+25%= 100%

so with this logic

25%= 2 hours

2+2+2+2=8

Hoped this helped !

Cheers, Z

7 0

3 years ago

Read 2 more answers

451 mi + 7.2 hr = ___ ___ (Round to the appropriate number of significant digits.)

451 mi + 7.2 hr = _ _ (Round to the appropriate number of significant digits.)