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galben [10]
3 years ago
13

What is the difference between 21.25-1.509

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
7 0

Answer:

19.741

Step-by-step explanation:

When subtracting decimals line up the decimals and then add 0s to the end to make it work. SO instead of

21.25

-1.509

___________

It would be

21.250

- 1.509

______________

Solve the subtraction problem like you normally would. THen drop the decimal down so it lies up with the others.

21.250

- 1.509

______________

19.741

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Zanna’s cousin was born in 1980. If Zanna was born in 1997, how much older, in years, is her cousin?
dalvyx [7]

Answer:

17 years.

Step-by-step explanation:

Zanna was born is 1997

Zanna's cousin was born in 1980

1997 - 1980 = 17

7 0
3 years ago
Read 2 more answers
Can someone please help me it’s urgent
Evgen [1.6K]

Answer:

8.5 in

Step-by-step explanation:

You are solving for the hypotenuse right? So you would use this formula:

c = square root a^2+b^2

the c is the hypotenuse (long side of a right triangle) and a will be 4 and b will be 7.5. substitute the numbers in, solve, and you get 8.5 inches!

x = square root 4^2 + 7.5^2

x = square root 16 + 56.25

x = square root 72.25

x = 8.5 inches

8 0
3 years ago
PLEASE HELP I HAVE 10 MORE MINUTES TO FINISH THIS!!!
evablogger [386]

Answer:

b

Step-by-step explanation:

add 5+3 then add 1/2 plus 3/4

7 0
3 years ago
What is the answer to this question??
MAXImum [283]

Answer:

28.246

Step-by-step explanation:

hihi. So you can use the Pythagorean theorem to find any missing sides to a triangle. The equation goes like this: a^2 + b^2 = c^2, where a a and b are the lengths of the 2 bases of the triangle and c is the length of the hypothenuse/longest side to the triangle. Since you know the length of the hypothenuse and of one of the bases you can solve for the last base using the equation which gets you ~8.246. Now, adding that to the other side lengths gets you 28.246 as an approximate perimeter to 3 sig figs

4 0
2 years ago
Simplify radicals on the square root of 56
Tanzania [10]

Answer:

4\sqrt{14}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

\sqrt{56}

= \sqrt{4(14)}

= \sqrt{4} × \sqrt{14}

= 2\sqrt{14}

4 0
3 years ago
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