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3 years ago

Can someone explain these questions to me, especially the last one please.

Mathematics

1 answer:

Firlakuza [10]3 years ago

4 0

Answer:

Step-by-step explanation:

A is 0.5 x 10 because the thickness of the sheets is 0.5 and there are ten sheets stacked together that thickness so how thick is the pile.

for B it is the answer of A plus one more sheet which is ( answer for A) + 0.5

for c just add another sheet on all sides wich is + 0.5 for each side and when you get that add that number to answer B and that it.

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What is the slope intercept from of the equation of the line that that passes through the points (-3, 2) and (1, 5)

viva [34]

The slope-intercept form of a line:

$y=mx+b\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\to slope\\\\b\to y-intercept$

We have:

$(-3,\ 2)\to x_1=-3,\ y_1=2\\(1,\ 5)\to x_2=1,\ y_2=5$

Substitute:

$m=\dfrac{5-2}{1-(-3)}=\dfrac{3}{4}$

$y=\dfrac{3}{4}x+b$

Put the values of coordinates of the point (1, 5) to the equation of a line:

$5=\dfrac{3}{4}(1)+b\\\\5=\dfrac{3}{4}+b\qquad|-\dfrac{3}{4}\\\\b=4\dfrac{1}{4}$

Answer: $y=\dfrac{3}{4}x+4\dfrac{1}{4}$

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3 years ago

Rewrite 3* = 243 as a logarithmic equation.

soldi70 [24.7K]

Answer:

log₃(243) = x

Step-by-step explanation:

3^x = 243

Rule: a^x = b -> logₐ(b) = x

log₃(243) = x

4 0

2 years ago

a high driver stands on a cliff 150 feet above sea level. he dives into the sea and goes 15 feet below the water. what is the di

natulia [17]

Start with the 150 and then add the 15, 165

3 0

2 years ago

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Calculate the value of (-8) 2/3

DiKsa [7]

Answer:

-16/3

Step-by-step explanation:

trust me

6 0

3 years ago

18. Given PQ | BR. Then find the measure of x

maria [59]

Answer:

∠x = 70°

Step-by-step explanation:

Given that PQ||BR

Line PQ and BR with transversal AC,

∠x + ∠ACR = 180° {Co-interior angles}

⇒∠x + 110° = 180° {From what I can see it looks like 110.}

⇒∠x = 180° - 110°

⇒∠x = 70°

7 0

2 years ago

Can someone explain these questions to me, especially the last one please.​

Can someone explain these questions to me, especially the last one please.