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katen-ka-za [31]

3 years ago

6

What is two fifths plus one fourth plus one tenth

1 answer:

drek231 [11]3 years ago

7 0

Answer:

3/4

Step-by-step explanation:

2/5+1/4+1/10=8/20+5/20+2/20=（8+5+2）/20=15/20=3/4

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Find the missing side lengths. Leave your answers as radicals in simplest form

tino4ka555 [31]

We have the triangle 30° - 60° - 90°.

The lenght of the sides are in proportion: $1:2:\sqrt3\to a:2a:a\sqrt3$

$a=y\\2a=x\\a\sqrt3=5\\\\a\sqrt3=5\qquad\text{multiply both sides by}\ \sqrt3\\\\3a=5\sqrt3\qquad\text{divide both sides by 3}\\\\a=\dfrac{5\sqrt3}{3}\\\\2a=2\cdot\dfrac{5\sqrt3}{3}=\dfrac{10\sqrt3}{3}\\\\Answer:\ x=\dfrac{10\sqrt3}{3},\ y=\dfrac{5\sqrt3}{3}$

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3 years ago

Factor by Grouping.<br><br> I’m confused can someone help me answer the question? ASAP please.

Kamila [148]

Answer:

D

Step-by-step explanation:

observe, grouping by gcd not 1

28r² + 35ry – 4xr – 5xy

= 28r² – 4xr + 35ry – 5xy

= 4r(7r – x) + 5y(7r –x)

= (4r + 5y)(7r – x)

4 0

3 years ago

Tom has 12 ears of field corn to make

Leviafan [203]

Tom arranged 3 groups of 4

5 0

2 years ago

What is the following sum in simplest form - see attached.

melomori [17]

You must first simplify the radicals by taking out any perfect squares.

√8 + 3√2 + √32 =
√4 * √2 + 3√2 + √16 * √2 =
2√2 + 3√2 + 4√2 =
9√2

5 0

3 years ago

What is 6.27 divided by 1000?

Effectus [21]

Answer:

0.00627 :)

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers