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blsea [12.9K]
4 years ago
11

What is -2/9 + 3/9 and steps plz

Mathematics
1 answer:
andrey2020 [161]4 years ago
3 0
Steps: -2/9+3/9

-2+3/9

Answer: 1/9
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A glass marble has a diameter of 18 millimeters. What is the approximate volume of the marble? Use 3.14 for .
maria [59]

The volume of the sphere is 3,052.08 cubic millimeters. The correct answer is A.

<h3>What is the volume of sphere?</h3>

If the given sphere is of radius r units, then its volume is given as:

V=  \dfrac{4}{3} \pi r^3 \: \rm unit^3

A glass marble has a diameter of 18 millimeters.

The radius is 9

V=  \dfrac{4}{3} (3.14) (9)^3 \: \rm unit^3\\\\V = 3,052.08 cubic millimeters

The volume of the sphere is 3,052.08 cubic millimeters. The correct answer is A.

Learn more about the volume of a sphere here:

brainly.com/question/381274

#SPJ1

3 0
2 years ago
both the red and blue line segments stretch from the center of the circle to a point on the circle. the legth of the blue line s
stiv31 [10]

Answer:

7.5

Step-by-step explanation:

It is longer than 5, so cross 2.5 and 5 out, 10 is too big, so 7.5 is the correct answer

4 0
3 years ago
Evaluate the inverse trigonometric function Sin^-1(-1). Give answers in both radians and degrees.
grin007 [14]

Answer:

B) Sin^-1(-1) = 3pi/2 or 270°

D) Sin^-1(-1) = -pi/2 or -90°

Step-by-step explanation:

Sine function:

The sine function is -1 at 270º(-90º), which is 3pi/2 = -pi/2.

Inverse sine:

The input of the inverse sine function is a value, and the output are the angles which have the sine equal to the input.

Sin^-1(-1)

Angles for which the sine are -1, that is 3pi/2 or 270° and -pi/2 or -90°. Thus, options B and D are correct.

4 0
3 years ago
Please help ASAPppppppp
astraxan [27]

Answer:

206 miles more

Step-by-step explanation:

Divide 2240 and 28 and you get 280 then divide 2368 and 32 and subtract 280- 74

7 0
3 years ago
Read 2 more answers
Help my math please<br> Due date is in 3 hours
Bumek [7]

Answer:

see explanation

Step-by-step explanation:

(a)

To change a mixed number to an improper fraction

Multiply the whole number by the denominator of the fraction and add the numerator. This value is the numerator of the improper fraction while the denominator remains unchanged, that is

(2 × 13) + 12 = 26 + 12 = 38 ← numerator

2 \frac{12}{13} = \frac{38}{13}

(b)

To change an improper fraction to a mixed number

divide the numerator by the denominator, noting the remainder, which forms the numerator of the fraction in the mixed number.

\frac{47}{19} = 2 remainder 9, hence

\frac{47}{19} = 2 \frac{9}{19}



7 0
3 years ago
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