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3 years ago

5

Please help me!!!!!!!!

1 answer:

yaroslaw [1]3 years ago

7 0

Answer:

try to copy and paste on gooogle and i think the answer is going to pop up

Step-by-step explanation:

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What figure can be made with exactly 420 squares?

Natali [406]

5. The 5th figure will have 30 tiles.
6. The 6th figure will have 42 tiles.
7. The pattern is non-linear (quadratic).
8. The 20th figure can be made with 420 tiles.

_____
The Nth figure is made with n*(n+1) tiles. To answer question 8, you must solve
.. n(n +1) = 420
.. n^2 +n -420 = 0
.. (n +21)(n -20) = 0
.. n = 20 or -21 . . . . the negative solution is extraneous

4 0

2 years ago

A tire company paid $4,992 for 64 tires. Which is the most reasonable estimate for the cost of each tire?

4vir4ik [10]

$78 for each tire
4,992 divided by 64 is 78

7 0

2 years ago

What is the modulus of the complex number z=e^itheta - 1 ?

timama [110]

Answer:

eahti-1

Step-by-step explanation:

8 0

2 years ago

The right end of this board lines up with the marks halfway between 4 and 5 (Iready) How long is the board?

cupoosta [38]

Answer:

$Halfway = 4.5$

Step-by-step explanation:

Given

4 and 5

Required

Determine the halfway

This is calculated as:

$Halfway = \frac{1}{2}(4 + 5)$

$Halfway = \frac{1}{2}(9)$

Remove bracket

$Halfway = \frac{1}{2} * 9$

$Halfway = 4.5$

5 0

2 years ago

a positive integer is twice another. The sum of the reciprocals of the two positive integers is frac 3/16, find the two integers

gizmo_the_mogwai [7]

Step-by-step explanation:

Let $x$ be the smallest integer

Let $2x$ be the larger integer

As the sum of the reciprocals of the two positive integers is frac 3/16

So,

$\frac{1}{x}\:+\:\frac{1}{2x}\:=\:\frac{3}{16}$

$\mathrm{Multiply\:by\:LCM=}16x$

$\frac{1}{x}\cdot \:16x+\frac{1}{2x}\cdot \:16x=\frac{3}{16}\cdot \:16x$

Simplify

$24=3x$

$\mathrm{Switch\:sides}$

$3x=24$

$\mathrm{Divide\:both\:sides\:by\:}3$

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

$x=8$

So,

$2x=16$

<h2>Verification:</h2>

$\frac{1}{8}\:+\:\frac{1}{16}$

$\mathrm{Least\:Common\:Multiplier\:of\:}8,\:16:\quad 16$

$=\frac{2}{16}+\frac{1}{16}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$=\frac{2+1}{16}$

$=\frac{3}{16}$

Therefore,

$\frac{1}{8}+\frac{1}{16}=\frac{3}{16}$

Keywords: word problem , integer

Learn more about solving integer word problem from brainly.com/question/10905225

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4 0

2 years ago