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3 years ago

PLEASE HELP ASAP FOR 10 POINTS

Mathematics

1 answer:

luda_lava [24]3 years ago

8 0

Answer:

x^4 - 16.

Step-by-step explanation:

This is simplified as follows:

(x^2 + 4)(x^2 - 4)

= x^4 - 16 ( by 'the difference of 2 squares').

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Calculate the exact value of cos(a−b) given that sin a=12/13 with π/2

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Answer:

Step-by-step explanation:

$sin ~a=\frac{12}{13} ,\frac{\pi}{2}$

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3 years ago

In the relationship shown by the data linear ? If so , model the data with an equation A. The relationship is not linear B. The

dybincka [34]

Let's take two points so that we can get the equation of the line which goes through those points. P1 (-9, -2), P2 (3, -17):

$m=\frac{y_2-y_1}{x_2-x_1}=\frac{-17-(-2)}{3-(-9)}=\frac{-17+2}{3+9}=-\frac{15}{12}=-\frac{5}{4}$ $\begin{gathered} y-y_1=m(x-x_1) \\ y-(-2)=-\frac{5}{4}\cdot(x-(-9)) \\ y+2=-\frac{5}{4}\cdot(x+9)_{} \\ y=-\frac{5}{4}x-\frac{45}{9}-2 \\ y=-\frac{5}{4}x-7 \\ f(x)=-\frac{5}{4}x-7 \end{gathered}$

So, y is the line which goes through the first and last points of the chart.

To proof that the rest of points go through the line as well, we will evalute each point

$\begin{gathered} f(-5)=-\frac{5}{4}\cdot(-5)-7=\frac{25}{4}-7=-\frac{3}{4}\ne-7 \\ f(-1)=-\frac{5}{4}(-1)-7=\frac{5}{4}-7=-\frac{23}{4}\ne-12 \end{gathered}$

Since the evaluation of these points don't correspond to the values of the chart we can assure that the relationship is not linear

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2 years ago

Add the numbers between 20 and 35 that can be divided exactly by 8

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It would be 6.875 i do believe

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3 years ago

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Step-by-step explanation:

5d on 1 side, double it to get 10d cuz from Point O to Point D, y increases from 0 to 5d and since the triangles are congruent, we can add another 5d (or in total 10d).

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Answer:

Step-by-step explanation:

each term is 4 times the previous term

the common ration is 4

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3 years ago

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