3 years ago

you flip a coin and draw a marble at random from a bag containing two purple marbles and one white marble

Mathematics

1 answer:

Elodia [21]3 years ago

5 0

If youre looking for probability i think it would be 2:1 <span />

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The area of a rectangle is 20 square inches. If the length is 4 inches less than 6 times the width, then find the dimensions of

Tpy6a [65]

Step-by-step explanation:

Let the width=x

Length =6x-4

As we know that in a rectangle

${\boxed{\sf Area=LB}}$

Substitute the values

$\hookrightarrow\sf x (6x-4)=20$

$\hookrightarrow\sf 6x^2-4x=20$

$\hookrightarrow\sf 6x^2-4x-20=0$

Here a=6, b=-4, c=-20.
use quadratic formula

$\hookrightarrow\sf x=\dfrac {1}{3}+\dfrac {1}{3}\sqrt {31} \quad or \quad \dfrac {1}{3}+\dfrac {-1}{3}\sqrt {31}$

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2 years ago

Use the Binomial Theorem to find the indicated coefficient or term.

Dmitriy789 [7]

Answer:

ans: coefficient of 3rd term is 60

3rd term is 60x

Step-by-step explanation:

(5x +2)³ = C(3,2) × (5x)^(3-2) × 2²

= 3 × 5 × 4 × x

= 60x

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3 years ago

A line crosses the x-axis at -7 and the y axis at 10. Is the slope of the line positive or negative?

nordsb [41]

The line is positive

The line is positive because it slants to the right.

It wouldve been negative if it slanted to the left.

3 0

2 years ago

Read 2 more answers

Please help with solving

Makovka662 [10]

N.O = 4
N is midpoint of M.0
Meaning M.N also has to be 4
4+4= 8
N.P = 6
0.P = 2
8+ 2 = 10

4 0

2 years ago

Quadratic equation <br>a2=529

PSYCHO15rus [73]

Answer:

a = ±23

Step-by-step explanation:

$a^2=529$

$a_{1} =23$

$a_{2} =-23$

3 0

2 years ago