2 years ago

Evaluate: 26 (2n + 5) = [?] Can someone please help me ASAP !

1 answer:

7 0

Answer:

it's 823 problem solved

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irina [24]

Well 2.26 as a fraction is
$2 \times \frac{13}{50}$
^Whole Fraction^

but as an Improper Fraction I is
$\frac{113}{50}$

7 0

3 years ago

kirill [66]

7y^2 + 10y + 3

7y^2 + 7y + 3y + 3

(7y^2+7y) + (3y+3)

7y(y+1) + 3(y+1)

(7y+3)(y+1)

So the final answer is (7y+3)(y+1)

4 0

3 years ago

natulia [17]

Answer:

The algebraic expression is 6x = 100

3 0

3 years ago

Mkey [24]

21g-6f-8g
13g-6f is the answer
combine like terms

7 0

3 years ago

balandron [24]

Answer:

The sample size is $n = 2$

Step-by-step explanation:

From the question we are told that

The margin of error is E =4.266

The standard deviation is $\sigma = 2.539$

From the question we are told the confidence level is 99% , hence the level of significance is

$\alpha = (100 - 99 ) \%$

=> $\alpha = 0.01$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 2.58$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2$

=> $n = [\frac{2.58 * 2.539 }{4.266} ] ^2$

=> $n = 2$

6 0

3 years ago