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3 years ago

Need help on this question.

Mathematics

1 answer:

Xelga [282]3 years ago

6 0

The slope is 4
slope intercept form : y=4x-2
point slope form: y-2= 4(x-1)

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PLEASE HELP!!

Svetach [21]

The rectangle is 28×34 and the two triangles are (1/2) 11 (28) and (1/2) (9)(34)

A = 28(34) + (1/2) 11 (28) + (1/2) (9)(34)

A = 1259

Answer: 1259 sq units

7 0

3 years ago

5. Determine the average rate of change of f(x)=6 cos(2x) – 4 on the interval [pi/4,pi]

Vinil7 [7]

Answer:

$- \frac{8}{\pi}$

Step-by-step explanation:

Use slope formula.

Rise over run.

y over x.

$\frac{ {y}^{2} - y {}^{1} }{ {x}^{2} - x {}^{1} }$

Over changes in x value would be - 3/4 pi.

Plug in seepage intervals for x to find y.

$6 \cos(2(\pi) - 4$

In the regular function,

$\cos(\pi) = 1$

Since our period is 2, it would stay the same since 1x2=2

Since our amplitude is 6, our y value now is 6.

Since our vertical shift is -4, our y value is 2.

$6 \cos(2(\pi)) - 4 = 2$

${x}^{2} = \pi \: \: \: \: {y}^{2} = 2$

Let do the other point,

$\cos( \frac{\pi}{4} ) = \frac{ \sqrt{2} }{2}$

Our period is 2 so

$\frac{ {\pi} }{4} \times \frac{2}{1} = \frac{\pi}{2}$

$\cos( \frac{\pi}{2} ) = 0$

Multiply this by 6.

It stays 0 then subtract 4 we get

$6 \cos(2( \frac{\pi}{4} )) - 4 = - 4$

Use the earlier formula, slope

$\frac{2 + 4}{ - \frac{3\pi}{4} } = - \frac{8}{\pi}$

7 0

2 years ago

The discriminant of a quadartic equation is 40. What is the nature of the solutions?

o-na [289]

Since the discriminant is positive, this means we have two distinct real solutions.

If a, b, and c are rational numbers, then a discriminant of D = 40 indicates the two solutions are not rational. We would need D to be a perfect square to get two rational solutions.

8 0

3 years ago

One Us dollar equals .84 euros. Margo is traveling and wants to exchange $400 for euro. how many euros will she get?

Galina-37 [17]

Answer:

336€

Step-by-step explanation:

$1 = .84€

(Multiply by 400)

$400=336€

6 0

3 years ago

Read 2 more answers

Review Pythagorean Theorem<br> Use the drawing tool to write the Pythagorean theorem<br> equation

agasfer [191]

The pythagorean theorem equation is a^2 (a squared) + b^2 (b squared) = c^2 (c squared)
so a^2+b^2=c^2

5 0

3 years ago