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8090 [49]
3 years ago
10

Which number is represented by 6,000 + 800 + 70 + 1 + 0.3 + 0.05:Options:

Mathematics
1 answer:
svetoff [14.1K]3 years ago
6 0

Answer:

6,871.35

Step-by-step explanation:

6000+800+70+1= 6871

0.3+0.05= 0.35

6871+0.35= 6871.35

Hope this helps!

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Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
aleksandrvk [35]

Answer:

x = -2+√3i and -2-√3i

Step-by-step explanation:

The formula for the general formula is expressed as;

x = -b±√b²-4ac/2a

Given the expression

x²+4x+7 = 0

a = 1, b = 4 and c = 7

Substitute

x = -4±√4²-4(1)(7)/2(1)

x  = -4±√16-28/2

x = -4±√-12/2

x = -4±√4*-3/2

x = -4±2√-3/2

x = -4±2√3i/2

x = -4+2√3i/2 and  -4-2√3/2

x = -2+√3i and -2-√3i

6 0
3 years ago
John, Jim and Joe each went for a medical examination. Their combined height was 5.25 m. If John was 12 cm shorter than Jim and
kolezko [41]

The 5.25 m combined height of John, Jim, and Joe, the 12 cm height difference between John and Jim and the 0.09 m difference in height between Jim and Joe, indicates that solution to the word problem is Joe was 1.73  meters tall

<h3>What is a word problem?</h3>

A word problem is a presentation of a math problem using verbal description rather than numbers, variables and operators.

The combined height of John, Jim and Joe = 5.25 m

John's height = Jim's height - 12 cm = Jim's height - 0.12

Jim's height = Joe's height + 0.09 m

Let <em>h </em>represent Joe's height, we get;

Jim's height = h + 0.09

John's height = h + 0.09 - 0.12 = h - 0.03

John's height = h - 0.03

The sum of the heights is therefore; h + h + 0.09 + h - 0.03 = 3·h + 0.06

The sum of their heights = Their combined height = 5.25 meters

Therefore; 3·h + 0.06 = 5.25

h = (5.25 - 0.06)/3 = 1.73

Joe's height, <em>h</em> = 1.73 meters

Jim's height = 1.73 + 0.09 = 1.82

Jim's height = 1.82 meters

John's height = 1.73 - 0.03 = 1.7

John's height is 1.7 meters

Joe was 1,73 meters tall

Learn more about mathematics word problems?

brainly.com/question/19386917

#SPJ1

4 0
1 year ago
Helphelphelphelphelp​
VashaNatasha [74]
<h3>5:16</h3>

The ratio is supposed to be pennies to total amount of coins. The total amount of coins--including pennies--is 16. This can be proven by this equation:

5 + 6 + 5 = 16

Now you put the ratio together by taking the amount of pennies (5) and total amount of coins (16). Your ratio should look like this:

5:16

Hope I helped you out! ❤❤

4 0
3 years ago
Convert the following to scientific notation: 0.009.
mote1985 [20]
The answer is:  [B]:  " 9 * 10⁻³ " .
____________________________________________________
5 0
3 years ago
Read 2 more answers
Use SOH CAH TOA to find the missing side.
zzz [600]

sin(43) × hypotenuse of 19 gives you oppo

= 13

6 0
2 years ago
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