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3 years ago

:( pls helppp its due in 14 minutess

Mathematics

2 answers:

AleksAgata [21]3 years ago

6 0

Answer:

$2\frac{1}{8}$ inches

Step-by-step explanation:

$\frac{2}{8} + 1\frac{7}{8}$

notka56 [123]3 years ago

4 0

Answer:

Step-by-step explanation:

because 2/8 + 1 7/8 is 2 1/8

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Its not 15 isnt it 10

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A thread is wound 200 times round a reel of diameter 5 cm. Use the value 3 for it to find the approximate length of the thread i

Radda [10]

Answer:

Length of the thread = 30 metres

Step-by-step explanation:

Length of the thread in one round of a reel = Circumference of the reel

C = $2\pi r$

Since radius of the reel = $\frac{\text{Diameter}}{2}$

= $\frac{5}{2}$

= 2.5 cm

Circumference of the reel = 2(π)(2.5)

= 5π

= 5×3

= 15 cm

Length of the thread wound in one round around the reel = 15 cm

Since, thread is wound 200 times round a reel, length of the thread

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Therefore, Option (B) will be the answer.

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3 years ago

A person suspects a standard number cube is not so standard. Another person rolls this cube 100 times, and it lands on a six 42

Ksju [112]

Answer:

The chance of an average six-sided number cube landing one one number is 1/6, or approximately 16.67%. When rolling a number cube 100 times, the average number of times it lands on any specific number should be fairly close to 16.67.

A 6 being rolled 42 times and 33 times means that it is <em>very likely</em> not to be a standard number cube. Although we cannot know for certain, the chance of this happening is very low.

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3 years ago

Find the coordinates of the midpoint of ab for a (4,7) and B (-6,6)

denis23 [38]

The coordinates for the midpoint of $ab$ are $(-1,\frac{13}{2})$ .

You can use the midpoint formula (shown below) to solve this problem, by plugging in your two coordinates as $(x_{_1},y_{_1})$ and $(x_{_2},y_{_2}).$

$M = (\frac{x_{_1}+{x_{_2}} }{2} , \frac{y_{_1}+{y_{_2}} }{2})$

Worked out, that would be:

$M = (\frac{4+(-6) }{2} , \frac{7+6}{2}) \\ \\
= (\frac{4-6 }{2} , \frac{7+6}{2}) \\ \\
= (\frac{-2 }{2} , \frac{13}{2}) \\ \\
= (-1,\frac{13}{2})$

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4 years ago

Chose all the values of x that are not in the domain of this rational function. Picture attached, 15 points and I'll give Brainl

olya-2409 [2.1K]

Answer:

Solution : Option A and Option C

Step-by-step explanation:

To find the values of x that are not present in the domain, we can start by making the denominator equal to 0. This would make the fraction undefined, and hence will solve for the value(s) of x that do not belong to the function -

x² - 3x - 10 = 0,

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x = - 2 and x = 5

Domain {x | x ≠ - 2 ≠ 5 }

Hence our solution(s) are option a and option c

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