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3 years ago

Why are the flat surfaces on a rectangular prism called faces

Mathematics

1 answer:

VikaD [51]3 years ago

4 0

Because they are the main side of the object

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tom has twice as many marbles as luke. together they have 39 marbles. how many marbles does tom have?

kodGreya [7K]

Tom has 26 marbles. if you need to show your work it would be 13x2= 26 and 26+13=39

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3 years ago

Read 2 more answers

2w+2l=24 what is the value of l

valentinak56 [21]

If the question is 2w+2L=24 than the answer is 6-w=L
but if the question is 2w+21=24 the answer is w=3/2

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3 years ago

Solve for x: −3|x − 3| = −6

lozanna [386]

-3|x-3|=-6
divide both sides by -3
|x-3|=2
assume
x-3=2 and
x-3=-2

x-3=2
add 3
x=5

x-3=-2
add 3
x=1

x=5 or 1

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3 years ago

Can someone PLEASE help me solve this equation ? due soon

RideAnS [48]

$\sf{Given : 3tanx + 7 = \dfrac{2}{(1 - sinx)(1 + sinx)}}$

We know that : (a - b)(a + b) = a² - b²

$\implies \sf{3tanx + 7 = \dfrac{2}{1 - sin^2x}}$

We know that : 1 - sin²x = cos²x

$\implies \sf{3tanx + 7 = \dfrac{2}{cos^2x}}$

$\sf{\bigstar \ \ We \ know \ that : \boxed{\sf{\dfrac{1}{cos^2x} = sec^2x}}}$

$\implies \sf{3tanx + 7 = 2sec^2x}$

We know that : sec²x = 1 + tan²x

$\implies \sf{3tanx + 7 =2(1 + tan^2x)}$

$\implies \sf{2 + 2tan^2x - 3 tanx - 7 = 0}$

$\implies \sf{2tan^2x - 3 tanx - 5 = 0}$

$\implies \sf{2tan^2x - 5tanx + 2tanx - 5 = 0}$

$\implies \sf{2tanx(tanx + 1) - 5(tanx + 1) = 0}$

$\implies \sf{(tanx + 1)(2tanx - 5) = 0}$

$\implies \sf{tanx = -1 \ (or) \ tanx = \dfrac{5}{2} }$

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2 years ago

Grap f(x)=x^2+1/3(x-8)

gulaghasi [49]

Answer:

2019

Step-by-step explanation:

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2 years ago