All categories

3 years ago

HELP>>>>>>>>PLZ I WILL KEEP UPPING POINT BCUZ I HAVE ALOT OF Q"S

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

7 0

Answer: the second one

Step-by-step explanation:

Because this equals x > -5

So the circle would be open with the arrow pointing to the right starting at -5

You might be interested in

Which is the initial value that shrinks an exponential growth function by 50%?

ValentinkaMS [17]

Suppose that the exponential growth function is y = 4^x.

If x = 1, then y = 4^1 = 4.
If x = 3, then y = 4^3 = 64.

Let the initial value be 1/2.

The growth function is now y = 1/2 * 4^x.

If x =1, then y = 2 which is half of the y value before adding the 1/2.

If x = 3, then y = 1/2 * 64 = 32.

Answer: 1/2

7 0

3 years ago

Read 2 more answers

Jessie has baked 30 out of 120 cookies. what percent of the cookies did jessie not bake

astra-53 [7]

This is a percent problem which means
You take the amount that has been completed over the total amount. You then multiply it by 100%
30/120*100=25%

7 0

3 years ago

Use technology to approximate the solution(s) to the system of equations to the nearest tenth of a unit.

kodGreya [7K]

The technology I used in helping me solve the problem is using Microsoft Excel. I made one column for the x values which were gathered from the choices, one column for f(x) whose equation is 8^(x-9), and another column for g(x) whose equation is log(3x) + 2.

Inputing these equation to the last two columns yield the values shown in the picture.The 'NUM' means that the equation at that value of x is undefined. From the values, the correct solution would be

(0,0), (9.2,1.5) and (9.6,3.5) to the f(x) equation
(9.6,3.5) to the g(x) equation

5 0

3 years ago

If the hypotenuse of a right triangle is 2 sqrt 3 units long and one legs is sqrt 3 units long, how long is the other leg?

allochka39001 [22]

Theorem of Pythagoras: a²+b²=c², where a, b is legs and c is hypotenuse.

We've got one leg known, let it be a=sqrt 3,
and the hypotenuse - c=2sqrt3

Putting these into the theorem, we get an equation: (sqrt3)²+b²=(2sqrt3)² . Solving it, we get:

3+b²=4*3
3+b²=12
b²=9

This equation has two possible roots: b=3 and b=-3. Since this is a triangle, there can't be a side with a negative value => b=3.

The answer is a. 3

4 0

3 years ago

Let theta be an angle in quadrant 2 such that cos theta =-3/4. Find the exact values of csc theta and cot theta.

Anna35 [415]

Step-by-step explanation:

Since $cos(\theta) = -\frac{3}{4}$ we can get some information from this. First of all $cos(\theta)$ is defined as $\frac{adjacent}{hypotenuse}$ . So the adjacent side is 3 and the hypotenuse is 4. Using this we can find the opposite side to find $sin(\theta)$ to calculate csc and cot of theta. So using the Pythagorean Theorem we can solve for the missing side. Also I forget to mention we have to calculate the sign of the adjacent side and the hypotenuse. Since you're given that the angle is in quadrant 2, that means the x-value is going to be negative, and the y-value is going to be negative. And the x really represents the adjacent side and the y represents the opposite. So the adjacent side is what's negative. and the opposite is positive

Pythagorean Theorem:

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

$(-3)^2 + b^2 = 4^2$

$9 + b^2 = 16$

$b^2 = 7$

$b = \sqrt{7}$

So now we can calculate $sin(\theta)$ .

$sin(\theta) = \frac{\sqrt{7}}{4}$

Now to calculate the exact value of csc you simply take the inverse. This gives you $csc(\theta)=\frac{4}{\sqrt{7}}$ . Multiplying both sides by sqrt(7) to rational the denominator gives you $\frac{4\sqrt7}{7}$ .

Now to calculate cot(theta) you find the inverse of tan. Tan is defined as $tan(\theta) = \frac{sin(\theta)}{cos(\theta)}$ . So all you do is take the inverse which is $cot(\theta) = \frac{cos(\theta)}{sin(\theta)}$ .