2 years ago

Solve pls brainliest

Mathematics

2 answers:

defon2 years ago

7 0

Answer:

29.13

Step-by-step explanation:

djyliett [7]2 years ago

6 0

The answer is 29.13. 27.63 + 1.5 = 29.13

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Two functions are shown in the table below.

SVETLANKA909090 [29]

Answer:

$(d)\ x = 4$

Step-by-step explanation:

Given

$f(x) = -x^2 + 4x + 12$

$g(x) = x + 8$

Required

Find x such that: $f(x) = g(x)$

This gives:

$-x^2 + 4x + 12 = x+8$

Collect like terms

$-x^2 + 4x -x + 12 -8=0$

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Expand

$-x^2 + 4x - x+4 =0$

Factorize

$x(x - 4) - 1(x-4) = 0$

Factor out x - 1

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Solve:

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Answer:

Author is the correct answer

Step-by-step explanation:

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3 years ago

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The quantity is called the pooled variance estimate of the common variance of two unknown but equal population variances. It is

lozanna [386]

Answer:

sample variances

Step-by-step explanation:

The pooled variance method is used to estimate the variance of several different population with different means, but are assume to have the same variance.

The weights represent the sample variances.

So the correct answer is

sample variances

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3 years ago

3. You have 3 consecutive numbers, with the smallest number n.

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SU RE sorry okay 20 so so

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3 years ago

Operations with fractions

matrenka [14]

Step-by-step explanation:

$\frac{2}{3} - \frac{1}{5} = \frac{10}{15} - \frac{3}{15} = \frac{7}{15}$

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