3 years ago

Jon red a rides in his pocket when he found two pennies

Mathematics

1 answer:

Sliva [168]3 years ago

8 0

Answer:

Step-by-step explanation:

2 pennies equal 2 cents.

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If alex is 14 years old, and ben is 17 years old, in how many years will the sum of their ages be 169 years?

navik [9.2K]

169... because 14+x + 17+x = 169

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3 years ago

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Vilka [71]

Answer:

4. 9

5. 5x

Step-by-step explanation:

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2 years ago

8n+2=18? Show Your Work.

Yuri [45]

18 - 2 = 16
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3 years ago

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Given: PRST is a square

xxTIMURxx [149]

Answer:

$(1-\sqrt{2})a^2$

Step-by-step explanation:

Consider irght triangle PRS. By the Pythagorean theorem,

$PS^2=PR^2+RS^2\\ \\PS^2=a^2+a^2\\ \\PS^2=2a^2\\ \\PS=\sqrt{2}a$

Thus,

$MS=PS-PM=\sqrt{2}a-a=(\sqrt{2}-1)a$

Consider isosceles triangle MSC. In this triangle

$MS=MC=(\sqrt{2}-1)a.$

The area of this triangle is

$A_{MSC}=\dfrac{1}{2}MS\cdot MC=\dfrac{1}{2}\cdot (\sqrt{2}-1)a\cdot (\sqrt{2}-1)a=\dfrac{(\sqrt{2}-1)^2a^2}{2}=\dfrac{(3-2\sqrt{2})a^2}{2}$

Consider right triangle PTS. The area of this triangle is

$A_{PTS}=\dfrac{1}{2}PT\cdot TS=\dfrac{1}{2}a\cdot a=\dfrac{a^2}{2}$

The area of the quadrilateral PMCT is the difference in area of triangles PTS and MSC:

$A_{PMCT}=\dfrac{(3-2\sqrt{2})a^2}{2}-\dfrac{a^2}{2}=\dfrac{(2-2\sqrt{2})a^2}{2}=(1-\sqrt{2})a^2$

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3 years ago

They will build another fence that is 48 feet long. The posts can be a minimum of 5 feet apart and a maximum of 9 feet apart. Th

lozanna [386]

6 posts at 8 feet apart because 8 goes into 48 equally and you get 6. 48/8=6

Hope this helps!

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3 years ago