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2 years ago

What is the vaule of -2 1/6 - 1 1/4 + 1 3/4? A. -1 2/3 B. -1 1/3 C. 2 1/3 D. 2 2/3

Mathematics

2 answers:

Scorpion4ik [409]2 years ago

8 0

Answer: A. -1 2/3

-2 1/6 - 1 1/4 + 1 3/4 (convert from mixed numbers to improper fractions)

= -13/6 - 5/4 + 7/4 (multiply to have the same LCD)

= -26/12 - 15/12 + 21/12

= -20/12 (convert back to a mixed number)

= -1 8/12 (simplify the mixed number)

= -1 2/3

riadik2000 [5.3K]2 years ago

6 0

Answer: A. -1 2/3

Step-by-step explanation:

-2 1/6 - 1 1/4 + 1 3/4 = -1 8/12 = -1 2/3

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3 years ago

A helicopter flying at an altitude of 600 ft dropped a package to a lifeboat. Use the formula t= - to find how many

Andre45 [30]

Answer:

6.1 seconds

Step-by-step explanation:

<u><em>The correct question is</em></u>

A helicopter flying at an altitude of 600 ft dropped a package to a lifeboat. Use the formula t= √h/4 to find how many seconds it takes for the package to reach the lifeboat. Round your answer to the nearest tenth of a second

we have

$t= \frac{\sqrt{h}}{4}$

substitute the value of h in the formula

$h=600\ ft$

$t= \frac{\sqrt{600}}{4}=6.1\ sec$

8 0

3 years ago

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scZoUnD [109]

Answer:

Step-by-step explanation:

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Answer: 8

5 0

2 years ago

3x3-5/5x6+19 i don’t know what I’m don’t wrong

KonstantinChe [14]

Hi there!

For these two equations, we would be using PEMDAS...

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Hope this helps!

4 0

3 years ago

f f(x)=2x f ( x ) = 2 x and g(x)=x2+3 g ( x ) = x 2 + 3 , find (g ∘ f)(x) ( g ∘ f ) ( x ) . Question 2 options: 2x2+3 2 x 2 + 3

Deffense [45]

Answer:

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3 years ago