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3 years ago

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Alex17521 [72]3 years ago

8 0

B is the answer llllllllllllllllll

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Choose ALL choices that represent the diagram.

crimeas [40]

Linear pair and Adjacent angles.

4 0

3 years ago

Kamila [148]

Answer:

angle 3 = 27 degrees

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

a random sample of n=24 data from a normal distribution with unkown variance produced x=42.5 and s=26 what is the 95 confidence

iogann1982 [59]

Answer:

<em>95% of confidence intervals are</em>

<em>(31.5215 , 53.4785)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given sample size 'n' =24

Mean of the sample x⁻ = 42.5

Standard deviation of the sample 'S' = 26

<em>95% of confidence intervals are determined by</em>

<em></em> $(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} + t_{0.05} \frac{S}{\sqrt{n} })$ <em></em>

<em>Degrees of freedom </em>

<em> ν =n-1 = 24-1 =23</em>

<em></em> $t_{0.05} = 2.0686$ <em></em>

<em>95% of confidence intervals are</em>

<em></em> $(42.5 - 2.0686 \frac{26}{\sqrt{24} } , 42.5+ 2.0686 \frac{26}{\sqrt{24} })$ <em></em>

<em>( 42.5 -10.9785 ,42.5 +10.9785)</em>

<em>(31.5215 , 53.4785)</em>

<em></em>

3 0

3 years ago

Practice simplifying rational expressions with negative exponents.

Gelneren [198K]

Answer:

Part 1:- option first is correct

$-\frac{1}{2}ab^{12}$

Part 1:- option third is correct

$\frac{w^{10}}{3y^{4}}$

Step-by-step explanation:

Given:

The given ration expressions are.

1. $\frac{-2a^{2}b^{4}}{4ab^{-8}}$

2. $\frac{-5w^{4}y^{-2}}{-15w^{-6}y^{2}}$

We need to simplify the given expressions.

Solution:

Part 1:-

Given expression is

$=\frac{-2a^{2}b^{4}}{4ab^{-8}}$

Using law of exponents $\frac{x^{m} }{x^{n} } = x^{(m-n)}$

$=-\frac{a^{2-1}b^{4-(-8)}}{2}$

$=-\frac{a^{1}b^{4+8}}{2}$

$=-\frac{ab^{12}}{2}$

$=-\frac{1}{2}ab^{12}$

Therefore, option first $-\frac{1}{2}ab^{12}$ is correct.

Part 2:-

Given expression is.

$=\frac{-5w^{4}y^{-2}}{-15w^{-6}y^{2}}$

Using law of exponents $\frac{x^{m} }{x^{n} } = x^{(m-n)}$

$=\frac{w^{4-(-6)}y^{-2-2}}{3}$

$=\frac{w^{4+6}y^{-4}}{3}$

$=\frac{w^{10}y^{-4}}{3}$

$=\frac{w^{10}}{3y^{4}}$

Therefore, third option $\frac{w^{10}}{3y^{4}}$ is correct.

4 0

3 years ago

Frieda orders pizzas for a meet at work. Last week she ordered 6

PtichkaEL [24]

Answer:

$y = 8x + 10$

Step-by-step explanation:

Given

Represent pizzas with x and amount with y

So:

$(x_1,y_1) = (6,58)$

$(x_2,y_2) = (9,82)$

Required

Determine the point slope equation

First, we need to determine the slope, m

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{82 - 58}{9 - 6}$

$m = \frac{24}{3}$

$m = 8$

Next, we determine the equation using:

$y - y_1 = m(x - x_1)$

$y - 58 = 8(x - 6)$

$y - 58 = 8x - 48$

$y = 8x - 48 + 58$

$y = 8x + 10$

4 0

3 years ago