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3 years ago

Help me plz plzzzzz

Mathematics

1 answer:

kati45 [8]3 years ago

5 0

Answer:

AC= 8.2

Step-by-step explanation:

Use Pythagorean theorem a 'squared' + b 'squared' = c 'squared'

6.5'squared' + 5 'squared' = AC 'squared'

42.25 + 25 = AC 'squared'

67.25= AC 'squared' (square root AC and 67.25)

8.2m = AC

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goblinko [34]

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2 years ago

In a hall,45%of the pupils were boys.there were 990 boys.how many pupils were there on the hall?

morpeh [17]

Your answer is 2,200 pupils.

If 990 is equal to 45% of the total amount of pupils, then to find 1% we can divide both 45 and 990 by 45.

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3 years ago

The stem plot shows the number of sit-ups completed by a group of gym members in one minute. Row1 with a 1 to the left of the ba

allochka39001 [22]

Answer:

Only statement second is correct about the distribution.

Step-by-step explanation:

The stem plot data given to us is;

1 | 9

2 | 5

3 | 4 6 8 8

4 | 0 3 6 7 7

5 | 0 0 1 2

As it is given in the question that 1 | 9 = 19 sit-ups, so the data value are;

19, 25, 34, 36, 38, 38, 40, 43, 46, 47, 47, 50, 50, 51, 52

(a) The first statement that there is one outlier in the distribution is false as there are two outliers in the data (19 and 25) as they are very far from the rest of the data.

(b) The statement that the distribution is skewed left is correct because the tail of the distribution is towards the left.

(c) The statement that the center is around 47 is false as the center or mean of the data is 43 because the middle most data value is 43.

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3 years ago

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ziro4ka [17]

Given

Gina has 6 yards of ribbon.

She cuts the ribbon into pieces that each measures three fourths yard.

Find out how many pieces of three fourths yard does Gina have

To proof

let the number of pieces of the ribbon be x.

As given in the question

Gina has of ribbon = 6 yards

She cuts the ribbon into pieces that each measures three fourths yard

Than the equation becomes

$x\times \frac{3}{4} = 6$

$x = \frac{6 \times 4}{3}$

solving the above equation

we get

x = 2 × 4

x = 8

Gina have 8 pieces of three fourths yard

Hence proved

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3 years ago

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