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2 years ago

What is 3x2- 2x -7 = 0

Mathematics

1 answer:

Damm [24]2 years ago

8 0

Use the order of operations or PEMDAS

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If f(x) = -3x - 5 and g(x)= 4x - 2, find (f-g) (x).

Eddi Din [679]

Answer:

$-7x-3$

Step-by-step explanation:

$(f-g)(x)$ just means $f(x)-g(x)$ .

$-3x-5-(4x-2)\\-3x-5-4x+2\\-7x-3$

4 0

3 years ago

Let q(t) = 29t and r(t) = StartFraction t Over 29 EndFraction. Which method could be the first step in proving that q(t) and r(t

Lisa [10]

Answer:C

Step-by-step explanation:

Because the inverse only gets applied to what you are inputting in the parentheses of the function.

3 0

3 years ago

Read 2 more answers

Help with math please?

Snowcat [4.5K]

In the first box is 2.
second box 1.
third 4.
fourth 5.
fifth 3.

6 0

3 years ago

Read 2 more answers

Urgent!!!

natita [175]

Lyra's speed of travel is 6.71 feet per seconds and Lyra's direction of travel is 27 degrees north of east

<h3>How to determine the speed of travel?</h3>

The diagram that represents the scenario is added as an attachment.

Let x represents Lyra's speed of travel.

The value of x is calculated using the following Pythagoras theorem.

$x = \sqrt{3^2 + 6^2}$

Evaluate the exponents

$x = \sqrt{9 + 36}$

Evaluate the sum

$x = \sqrt{45}$

Evaluate the exponent

x = 6.71

Hence, Lyra's speed of travel is 6.71 feet per seconds

<h3>How to determine the direction of travel?</h3>

The direction (∅) is calculated using the following tangent ratio.

$\tan(\theta) = \frac 36$

Evaluate the quotient

$\tan(\theta) = 0.5$

Take the arc tan of both sides

$\theta = \tan^{_1}(0.5)$

Evaluate

$\theta = 27$

Hence, Lyra's direction of travel is 27 degrees north of east

Read more about speed and distance at:

brainly.com/question/4931057

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3 0

1 year ago

Select the correct answer. What is the range of the function f(x) = -4\x+ 11 - 5? A. (-4,-5) B. [-5,-) OC. (-4,-) OD. (-2,-4] Re

Y_Kistochka [10]

We are given the following function:

$f(x)=-4\lvert x+1\rvert-5$

This function is equivalent to the function:

$g(x)=-4\lvert x+1\rvert$

Together with a translation 5 units in the negative direction of the "x" axis. Since the range of g(x) is all the values of "y" that are smaller or equal to zero, if we translate 5 units in the negative direction of the y-axis the range is:

$R(f(x))=\mleft\lbrace y\parallel y\mright?\le5\rbrace$

or in interval notation:

$R(f(x))=(-\infty,-5\rbrack$

3 0

6 months ago