4 years ago

Joan has 294 black marbles. Joan has 42 times more black marbles than Dan. How many black marbles does Joan has?

1 answer:

lara [203]4 years ago

5 0

Joan has 294 marbles
dan has 7 marbles

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anastassius [24]

$2x^3-32x= \\
2x(x^2-16)= \\
2x(x^2-4^2)= \\
\boxed{2x(x+4)(x-4)} \Leftarrow
\hbox{answer B}$

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4 years ago

Zinaida [17]

Answer:

It's app. 50.24

Step-by-step explanation:

The area of a circle is A = pi * r ^2

So the area is

= pi * 16

in the question it says to use 3.14 for pi instead

so multiply 16 * 3.14 = 50.24

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3 years ago

Molodets [167]

Answer:

22 m

Step-by-step explanation:

Diameter d = 7 m

Circumference of the circle C =?

$C = \pi d = 3.14 \times 7 \\ \\ C= 21.98 \: m\\ \\ C \approx 22.0 \: m$

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3 years ago

Volgvan

The answer is eight

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3 years ago

Gwar [14]

Look up the formula to find the area of a trapezoid. Then do the math HINT: The formula is

A= a+b/2 h

6 0

3 years ago