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2 years ago

Pls helpppppppppppppppp

Mathematics

2 answers:

vredina [299]2 years ago

5 0

Answer: D

Each time a new row and a new column is added. The last pattern had 3 rows and 4 columns, so the next pattern will have 4 rows and 5 column.

7nadin3 [17]2 years ago

4 0

Answer:

yes the awnser is d I can approve of that

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Alisiya [41]

Answer: d
The two smallest sides have to add up to the largest one

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In the last ten games, Jamal made 7/9 of his free throws and brian made 5/8 of bis free throws. Which player has the better reco

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Jamal because he has a higher percentage of shots made 78%>62%

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3 years ago

Alejandra is continuing a dice game she started playing with her cousin yesterday. Her score at the end of today's game is 135.

IgorC [24]

Answer:

She has 95 points in the beginning of the game.

Step-by-step explanation:

I dont really know how to explain how i got the answer, but it should be correct :)

8 0

3 years ago

Read 2 more answers

Rationalize the denominator and simplify 6/√2-√3

ss7ja [257]

Answer:

=3√6−3√5

Explanation:

3√5+√6

We rationalise the denominator by multiplying the expression by the conjugate of the denominator. √5−√6

3⋅(√5−√6)(√5+√6)⋅(√5−√6)

=3⋅(√5)+3⋅(−√6)(√5+√6)⋅(√5−√6)

=3√5−3√6(√5+√6)⋅(√5−√6)

Applying identity
(a+b)(a−b)=a2−b2 to the denominator.

=3√5−3√6(√5)2−(√6)2

=3√5−3√65−6

=3√5−3√6−1

=−3√5+3√6

=3√6−3√5

5 0

3 years ago

Six different second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re

Yanka [14]

Answer:

$Range=14$

$\sigma^2 =32.4$

$\sigma = 5 .7$

The standard deviation will remain unchanged.

Step-by-step explanation:

Given

$Data: 136, 129, 141, 139, 138, 127$

Solving (a): The range

This is calculated as:

$Range = Highest - Least$

Where:

$Highest = 141; Least = 127$

So:

$Range=141-127$

$Range=14$

Solving (b): The variance

First, we calculate the mean

$\bar x = \frac{1}{n} \sum x$

$\bar x = \frac{1}{6} (136+ 129+ 141+ 139+ 138+ 127)$

$\bar x = \frac{1}{6} *810$

$\bar x = 135$

The variance is calculated as:

$\sigma^2 =\frac{1}{n-1}\sum(x - \bar x)^2$

So, we have:

$\sigma^2 =\frac{1}{6-1}*[(136 - 135)^2 +(129 - 135)^2 +(141 - 135)^2 +(139 - 135)^2 +(138 - 135)^2 +(127 - 135)^2]$

$\sigma^2 =\frac{1}{5}*[162]$

$\sigma^2 =32.4$

Solving (c): The standard deviation

This is calculated as:

$\sigma = \sqrt {\sigma^2 }$

$\sigma = \sqrt {32.4}$

$\sigma = 5 .7$ --- approximately

Solving (d): With the stated condition, the standard deviation will remain unchanged.

5 0

3 years ago