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2 years ago

13

Find the surface area of the pyramid

1 answer:

jolli1 [7]2 years ago

5 0

The surface area is ≈ 451.92

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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

Round 3.44570830811 to the nearest hundred-thousandth,

Alika [10]

Answer:

3.44571

Step-by-step explanation:

look at the number to the right of the decimal. if the number is higher than or is 5 round the number up, but if the number is less than 5 it will stay the same.

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2 years ago

ohaa [14]

Answer:

$(2,2)~ \text{and}~ (-2,-2)$

Step by step explanation:

$x^2 +y^2 =8~~~~~~...(i)\\\\x-y=0~~~~~~~~~...(ii)\\\\\text{From (ii):}\\\\x-y = 0 \implies x = y\\\\\text{Substitute x = y in eq (i):}\\\\~~~~~~y^2 +y^2 =8\\\\\implies 2y^2 = 8\\ \\\implies y^2 = \dfrac 82\\\\\implies y^2 = 4\\\\\implies y = \pm\sqrt 4\\\\\implies y = \pm 2\\\\\text{Substitute y = x in equation (i):}\\ \\~~~~~~x^2 +x^2 = 8\\ \\\implies 2x^2 = 8\\\\\implies x^2 = \dfrac 82\\\\\implies x^2 = 4\\\\\implies x = \pm\sqrt 4\\\\\implies x = \pm2\\\\$

$\text{Hence,}~ (x,y) = (\pm2, \pm 2)$

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2 years ago

The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of serv

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Is your answer bc it is idk and Idc

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2 years ago