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3 years ago

ILL GIVE U BRAINLYIST

Mathematics

2 answers:

Sonbull [250]3 years ago

8 0

Answer:

Step-by-step explanation:

hope this helps :) please mark me brainliest :)

qwelly [4]3 years ago

6 0

Answer:B

bbbbbbbbbbbbbbbbbbbbbbb

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What multiplies to 24 and adds to negative 11?

olga_2 [115]

-8•-3 I think this is right

3 0

3 years ago

HELP ME PLEASE!!!!!!!!!!!!

umka21 [38]

Answer:

28.

Step-by-step explanation:

The first five prime numbers are : 2,3,5,7 and 11. Their sum is : 2+ 3 + 5 + 7 +11 = 28

8 0

3 years ago

In an article in Marketing Science, Silk and Berndt investigate the output of advertising agencies. They describe ad agency outp

fredd [130]

Answer: (7.27%, 7.55%)

Step-by-step explanation:

As per given , we have

Sample size : n= 392

Sample mean : $\overline{x}=7.41\%$

$\sigma=1.43\%$

Critical two-tailed z-value for 95% confidence = $z_{\alpha/2}=1.96$

Required confidence interval would be :

$7.41\%\pm (1.96)\dfrac{1.43\%}{\sqrt{392}}\\\\=7.41\%\pm 0.14\%\\\\=(7.27\%, 7.55\%)$

Hence, the required 95% confidence interval for the mean percentage share of billing volume from network television for the population of all U.S. advertising agencies : (7.27%, 7.55%)

7 0

4 years ago

What is an equation of the line that passes through the point (2, -6) and is parallel

Karo-lina-s [1.5K]

keeping in mind that parallel lines have exactly the same slope, let's check for the slope of the equation above

$x-2y=8\implies -2y=-x+8\implies y=\cfrac{-x+8}{-2} \\\\\\ y=\cfrac{-x}{-2}+\cfrac{8}{-2}\implies y=\stackrel{\stackrel{m}{\downarrow }}{\cfrac{1}{2}}x-4 \qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}$

so we're really looking for the equation of a line whose slope is 1/2 and passes through the point (2 , -6)

$(\stackrel{x_1}{2}~,~\stackrel{y_1}{-6})\qquad\qquad \stackrel{slope}{m}\implies \cfrac{1}{2} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-6)}=\stackrel{m}{\cfrac{1}{2}}(x-\stackrel{x_1}{2}) \\\\\\ y+6=\cfrac{1}{2}x-1\implies y=\cfrac{1}{2}x-7$

5 0

3 years ago

Write the point-slope form of the line that passes through (6, 1) and is parallel to a line with a slope of -3.

pochemuha

Point-slope form : y-y₁=m(x-x₁)

Passes through (6, 1) and parallel to a line with slope of -3.

Simply plug everything in.

*m =slope

y - y₁=m(x-x₁)

y - 1 = -3(x - 6)

Simplify.

y - 1 = -3x + 18

Add 1 to both sides.

y = -3x + 19

~Hope I helped!~

7 0

3 years ago