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3 years ago

Two similar bags contain the same number of red and blue balls

Mathematics

1 answer:

Kobotan [32]3 years ago

5 0

The answer is B x-2y=-15

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Which equation represents the relationship between the angles in this figure?

mrs_skeptik [129]

Answer:

Step-by-step explanation:

sum of angles on a straight line = 180

b + b + 148 = 180

2b + 148 = 180

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3 years ago

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Simplify (-80/-20)<br> -4<br> 4<br> -40<br> 40

Reil [10]

Answer:

Step-by-step explanation:

the negatives cancel and 80/20 equals 4

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3 years ago

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According to the table, which ordered pair is a local minimmum of the function, f(x)

Lemur [1.5K]

Hello from MrBillDoesMath!

Answer:

(2, -15)

Discussion:

From the table, the local minimum of -15 occurs when x = -2 and x = 2 BUT the answers provided do not include x = -2. The only remaining answer is

(2, -15)

Thank you,

MrB

6 0

3 years ago

PLEASE HELP! I REALLY REALLY NEED HELP!

coldgirl [10]

A is (-1/2, -1/4) because it's on the points (-0.5, -0.25), B is (-2 1/2, 1 1/2) because it's on the points (-2.5, 1.5), and C is (1/4, 1/2) because it's on the points (0.25, 0.5) . Hope this helps!

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3 years ago

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Use a Pythagorean identity to rewrite the equation below using only the function sin θ. Then find the value of r if θ=30°,60°, a

zepelin [54]

$\bf sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta)\\\\
-------------------------------\\\\
r=4sin(\theta )cos^2(\theta )\implies r=4sin(\theta )[1-sin^2(\theta )]
\\\\\\
r=4sin(\theta )-4sin^3(\theta )\qquad \qquad 
\begin{cases}
r=4sin(30^o)-4sin^3(30^o)\\
r=4sin(60^o)-4sin^3(60^o)\\
r=4sin(90^o)-4sin^3(90^o)
\end{cases}$

$\bf \begin{cases}
r=4\left( \frac{1}{2} \right)-4\left( \frac{1}{2} \right)^3\\\\
r=4\left( \frac{\sqrt{3}}{2} \right)-4\left( \frac{\sqrt{3}}{2} \right)^3\\\\
r=4(1)-4(1)^3
\end{cases}\implies 
\begin{cases}
r=2-\frac{1}{2}\\\\
r=2\sqrt{3}-\frac{3\sqrt{3}}{2}\\\\
r=4-4
\end{cases}\implies 
\begin{cases}
r=\frac{1}{2}\\\\
r=\frac{\sqrt{3}}{2}\\\\
r=0
\end{cases}$

6 0

3 years ago