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3 years ago

Please help!! I do not understand this!

Mathematics

1 answer:

jarptica [38.1K]3 years ago

8 0

Answer: C

<u>Step-by-step explanation:</u>

Replace x with $-\frac{2}{3}$ and solve.

f(x) = 3x² - 6x - 1

f( $-\frac{2}{3}$ ) = 3( $-\frac{2}{3}$ )² - 6( $-\frac{2}{3}$ ) - 1

= 3( $\frac{4}{9}$ ) + 4 - 1

= $\frac{4}{3}$ + 3

= $\frac{4}{3}$ + $\frac{9}{3}$

= $\frac{13}{3}$

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Plz help fast!!!! will mark brainliest if correct

Marta_Voda [28]

Step-by-step explanation:

(g+f)(x) ie option B

-2+1 = -1

1-2 = -1

4-5 = - 1

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3 years ago

Suppose that triangle ABC is a right triangle with a right angle at C and hypotenuse C. Also note that a is the length of the si

gavmur [86]

Answer:

The value of a is 7.4833. The value of $A=29.9262^0$ and $B=60.0735^0$ .

Step-by-step explanation:

Consider the provided information.

The required figure is shown below:

We need to find the value of a.

Calculate the value of a by using Pythagorean theorem.

$a^2+b^2=c^2$

$a^2+(13)^2=(15)^2$

$a^2=225-169$

$a^2=56$

$a=7.4833$

Hence, the value of a is 7.4833.

Now find the value of angle A as shown:

$\sin A=\frac{a}{c}$

$\sin A=\frac{7.4833}{15}$

$A=sin^{-1}(0.4989)$

$A=29.9262^0$

Find the value of angle B as shown:

$\sin B=\frac{b}{c}$

$\sin B=\frac{13}{15}$

$B=sin^{-1}(0.8667)$

$B=60.0735^0$

Hence, the value of $A=29.9262^0$ and $B=60.0735^0$ .

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3 years ago

A 2-column table with 6 rows. The first column is labeled x with entries negative 3, negative 2, negative 1, 0, 1, 2. The second

ikadub [295]

The largest interval of x-values where the function is increasing is (-1, 1)

<h3>How to determine the largest increasing interval?</h3>

The table of values is added as an attachment

From the table, the function f(x) decreases from x = -3 to x = -1 and x = 1 and x = 2

So, we make use of the intervals

x = -1, 0 and 1

From the table,

From x = -1 to 0, the change is 3

From x = 0 to 1, the change is 3

From x = -1 to 1, the change is 6

Using the above highlights, the largest increasing interval is (-1, 1)

Hence, the largest interval of x-values where the function is increasing is (-1, 1)

Read more about function interval at:

brainly.com/question/1399055

#SPJ1

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2 years ago

Find the radius of a cone with a volume of 175 cm and a height of 21 cm

ki77a [65]

Answer:

The answer is r≈2.82

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3 years ago

Which is equivalent to the expression (2m^5n^4)^3?

Misha Larkins [42]

It would be A-8m^15n^12

Hope this helps

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3 years ago