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2 years ago

Find the discriminant when a= 3, b= -1, and c= -8

Mathematics

2 answers:

Romashka-Z-Leto [24]2 years ago

6 0

Answer:

sorry i'like to help ypu but i dont know the answer

Whitepunk [10]2 years ago

3 0

Discriminant is just b squared - 4ac
b^2-4ac
(-1)^2 - 4(3)(-8)
1 + 96
97 final answer

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Determine the slope of the lines parallel and perpendicular to -4x+3y=11

andreev551 [17]

Answer:

parallel = 4/3

perpendicular =-3/4

Step-by-step explanation:

Solve for y

-4x+3y=11

Add 4x to each side

3y = 4x+11

Divide by 3

y = 4/3 x +11/3

This is in the form y = mx+b where m is the slope

m =4/3

The parallel line has the same slope

parallel slope is 4/3

The perpendicular line has a negative reciprocal slope

m = -(1 /4/3) = - 3/4

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2 years ago

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Solve 71.2e = 1,637.6

otez555 [7]

Answer:

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Step-by-step explanation:

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2 years ago

A number r tripled plus t quadrupled please help !!

ludmilkaskok [199]

This In Expression Form Is:
3r + 4t.
The Reason Why Is Because:
When You Triple r, That Is 3r, And When You Quadruple t, It becomes 4t. And Plus Means to Add. So, This Becomes 3r + 4t
I Hope this Helps!

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2 years ago

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Graph the inverse circular function by hand, given f(x) = 3sin(2x) ;-pi/4 ≤ ≤pi/4

nasty-shy [4]

Part a)

a) The given function is

$f(x) = 3 \sin(2x)$

We let

$y = 3 \sin(2x)$

Interchange x and y.

$x= 3 \sin(2y)$

Solve for y;

$\frac{x}{3} = \sin(2y)$

$y = \frac{1}{2} { \sin}^{ - 1}( \frac{x}{3} )$

${f}^{ - 1}(x) = \frac{1}{2} { \sin}^{ - 1}( \frac{x}{3} )$

Part b) The range of f(x) refers to y-values for which f(x) exists.

The range of f(x) is

$- 3 \leqslant y \leqslant 3$

This is because the function is within y=-3 and y=3.

c) The range of

${f}^{ - 1} (x)$

$- \frac{ \pi}{4} \leqslant y \leqslant \frac{\pi}{4}$

The domain is -3≤x≤3

This is because the domain and range of a function and its inverse swaps.

Part d) The graph is shown in the attachment.

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3 years ago

Write the rules for determining the sign of the product when multiplying integers. Then, write the the rules for determining the

kondor19780726 [428]

For multiplication, if both integers have like signs, it is always positive. If they have unlike signs it is negative.
For division, if both integers have like signs it is positive. If they have unlike signs it is negative.

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2 years ago