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3 years ago

Please help me with this

Mathematics

1 answer:

GenaCL600 [577]3 years ago

4 0

Answer: slope = 4

Step-by-step explanation:

slope = m = rise/run = y1-y2/x1-x2

9-1/5-3 = 8/2 = 4

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Free Cookie or brainliest

Bess [88]

Answer: point C

Step-by-step explanation: the square root of 68 is 8.246and it keeps going with other digits

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3 years ago

Read 2 more answers

A temperature of 3225 °F will melt platinum. Gold melts at a temperature of 1947.974 °F.

sertanlavr [38]

Questions like this ("how much higher is x than y?") are answered by computing the ratio of the two quantities.

In fact, for example, the answer to "how much higher is 10 than 5?" is 2, because 10:5 = 2, and indeed 10 is twice as much as 5.

So, we have

$\dfrac{3225}{1947.974}\approx 1.65$

So, the melting temperature of platinum is about one time and a half higher than the melting temperature of gold.

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3 years ago

I need answers quick thanks

Tema [17]

B :) open circle means inequality and it needs to be at least 3 so the line has to increase, meaning the arrow is going right.

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2 years ago

Sin^2(x/2)=sin^2x <br> Find the value of x

Veronika [31]

$\sin^2\dfrac x2=\sin^2x$
$\dfrac{1-\cos x}2=1-\cos^2x$
$1-\cos x=2-2\cos^2x$
$2\cos^2x-\cos x-1=0$
$(2\cos x+1)(\cos x-1)=0$
$\implies\begin{cases}2\cos x+1=0\\\cos x-1=0\end{cases}$ $\implies\begin{cases}\cos x=-\frac12\\\cos x=1\end{cases}$

The first case occurs in $0\le x$ for $x=\dfrac{2\pi}3$ and $x=\dfrac{4\pi}3$ . Extending the domain to account for all real $x$ , we have this happening for $x=\dfrac{2\pi}3+2n\pi$ and $\dfrac{4\pi}3+2n\pi$ , where $n\in\mathbb Z$ .

The second case occurs in $0\le x$ when $x=0$ , and extending to all reals we have $x=2n\pi$ for $n\in\mathbb Z$ , i.e. any even multiple of $\pi$ .

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3 years ago

Write an algebraic expression for the phrase.<br><br> the sum of f and 6

Wittaler [7]

Answer:

f+6

f+6 =(f+6)

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3 years ago