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3 years ago

Help asap,marking brainliest

Mathematics

2 answers:

lutik1710 [3]3 years ago

7 0

Answer:

Try d .............,,.....

Step2247 [10]3 years ago

4 0

Answer:

Option B is the correct answer

Step-by-step explanation:

Hope it helps you in your learning process.

-2(3x - 1) < 8

(3x - 1) > 8/(-2)

3x - 1 > - 4

3x > 1 - 4

3x > - 3

x > - 3/3

x > - 1

You might be interested in

For the function f(x)=-4sqrtx-1, find the inverse function.

d1i1m1o1n [39]

Given function: $f(x)=-4\sqrt{x}-1$ .

We need to find the inverse of the given function f(x).

Let us write the function in terms of x and y first.

$y=-4\sqrt{x}-1$

Now, in order to find the inverse, we need to switch x and y, we get

$x=-4\sqrt{y}-1$

Now, we need to solve it for y.

In order to solve it for y, we need to isolate it for y.

Adding 1 on both sides, we get

$x+1=-4\sqrt{y}-1+1$

$x+1=-4\sqrt{y}$

Dividing both sides by -4, we get

$\frac{x+1}{-4}=\sqrt{y}$

In order to get rid square root from right side, we need to square both side.

$(\frac{x+1}{-4})^2=(\sqrt{y})^2$

$\frac{(x+1)^2}{16}=y$

Or $y=\frac{1}{16}(x+1)^2$

Therefore, inverse function is

$f^{-1}(x)=\frac{1}{16}(x+1)^2$ .

4 0

3 years ago

2v + 18 = 16 - 4(v + 7)<br> please help, thank you

tia_tia [17]

Answer:

v=−5

Step-by-step explanation:

2v + 18 = 16 - 4(v + 7)

2v+18=16−4(v+7)

2v+18=16+(−4)(v)+(−4)(7)(Distribute)

2v+18=16+−4v+−28

2v+18=(−4v)+(16+−28)(Combine Like Terms)

2v+18=−4v+−12

2v+18=−4v−12

Add 4v to both sides.

2v+18+4v=−4v−12+4v

6v+18=−12

Subtract 18 from both sides.

6v+18−18=−12−18

6v=−30

Divide both sides by 6.

6v /6 = −30 /6

v=−5

8 0

3 years ago

Please assist with this question . Will give brainliest. No links please!!!

SpyIntel [72]

Answer:

$-16x^3+9x^2$

Step-by-step explanation:

$-4x^3-12x^3+9x^2$

$(-4-12)x^3+9x^2$

$-16x^3+9x^2$

8 0

3 years ago

I just need number 2 pls

Sever21 [200]

Answer:

ik the answer

Step-by-step explanation:

3 0

3 years ago

On a piece of paper, use a protractor to construct right triangle ABC with AB=3 in. , m∠A=90° , and m∠B=45° .

n200080 [17]

Option A: $$A C=3 \ in$ is true about the triangle.

Explanation:

The measurements of the right triangle ABC is $A B=3 \ in$ , $m \angle A=90^{\circ}$ and $\mathrm{m} \angle{B}=45^{\circ}$

The image of the triangle having these measurements is attached below:

Option A: $$A C=3 \ in$

Using Pythagorean theorem, we have,

$tan \ 45^{\circ}= \frac{AC}{3}$

$1\times 3= AC$

$3=AC$

Thus, the length of AC is $$A C=3 \ in$

Therefore, Option A is true about the triangle.

Hence, Option A is the correct answer.

Option B: $$B C=3\ in$

Using Pythagorean theorem, we have,

$cos \ 45^{\circ}=\frac{3}{BC}$

$BC=\frac{3}{cos \ 45^{\circ}}$

$BC=\frac{3}{0.707}$

$BC=4.24$

Thus, the length of BC is $BC=4.24 \ in$

Therefore, Option B is not true about the triangle.

Hence, Option B is not the correct answer.

Option C: $$B C=6\ in$

Using Pythagorean theorem, we have,

$cos \ 45^{\circ}=\frac{3}{BC}$

$BC=\frac{3}{cos \ 45^{\circ}}$

$BC=\frac{3}{0.707}$

$BC=4.24$

Thus, the length of BC is $BC=4.24 \ in$

Therefore, Option C is not true about the triangle.

Hence, Option C is not the correct answer.

Option D: $$A C=6\ in$

Using Pythagorean theorem, we have,

$tan \ 45^{\circ}= \frac{AC}{3}$

$1\times 3= AC$

$3=AC$

Thus, the length of AC is $$A C=3 \ in$

Therefore, Option D is not true about the triangle.

Hence, Option D is not the correct answer.

3 0

4 years ago