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3 years ago

Hey PLS PLS I WILLL GIVE BRAINLIEST AND THANK YOU ALSO ANSWER THE EQUATION THEN PUT THE ANSWER YOU GOT IN ONE OF THE BLANK BOXES

Mathematics

2 answers:

german3 years ago

8 0

Answer:

B: Divide both sides by 3

Step-by-step explanation:

The reason why is because you want to get x by itself and right now it looks like it is married (multiplied) to 3. To get it by itself, you have to get a divorce (be divided). Therefore, you would do 3x/3=x. You would then also have to divide the 27 on the other side. X then should equal 9.

sergiy2304 [10]3 years ago

3 0

Answer:

x=9 B

Step-by-step explanation:

3x=27

divide both sides by 3 to get the x alone

28/3=9

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What are the solutions of the equation x^4 – 5x^2 – 36 = 0? Use factoring to solve.

hammer [34]

Answer:

Step-by-step explanation:

The equation is x^4 – 5x^2 – 36 = 0

We will break the middle term:

Firstly multiply the coefficient of x^4 by constant term of the equation:

1*36 = 36

Now find any two numbers whose product is 36 and their sum or difference is equal to 5

9*4 = 36

9-4 = 5

Now,

x^4 – 5x^2 – 36 = 0

x^4-9x^2+4x^2-36=0

Now take the common:

x^2(x^2-9)+4(x^2-9)=0

(x^2+4)(x^2-9)=0

x²+4=0,

x²= 0-4,

x²=-4,

Take root on both sides:

√x²=+/-√-4

+/-√-4 = +/-√-1 *√4

√-1 = i

Then +/-√-1 *√4 = √4 i

We know that the root of 4 is 2

Then we can write it as +/-2i

Thus x = 2i , -2i

Now (x^2-9)= 0

x²=0+9

x²=9

Take square root on both sides:

√x²=√9

x=+/-3

x= 3, -3

Therefore the values of x are 2i, -2i, 3 , -3 ....

3 0

3 years ago

If the policy premium on a 30 year $1,000,000 term life policy for a 35-year-old female is increased to $714, what is the percen

Andru [333]

I believe the answer might be B

3 0

3 years ago

Read 2 more answers

Plz help im cheeks at math

Vera_Pavlovna [14]

We have an exponential with a fractional base and a positive exponent, and a positive sign at front. Each time we multiply a fraction between zero and one by itself it gets smaller. So as x increases we'll go to zero. As x decreases it goes to positive infinity, as negative powers are the reciprocals of positive power.

The left end approaches positive infinity and the right end approaches zero.

6 0

3 years ago

A set of kitchen containers can be stacked to save space. The height of the stack is given by the expression LaTeX: 1.5c+7.61.5

Nuetrik [128]

Answer:

Part A

The height of the stack made of 8 containers is 19.6 cm

Part B

When the tower is 40.6 cm tall, the number of containers in the set are 22 containers

Part C

(Disagree) The height of a single container is 9.1

Step-by-step explanation:

The question relates to containers, stacked one inside the other such that the height increases by only the wider top edge of the containers

The given expression that gives the height of the stack is presented as follows;

1.5·c + 7.6

Where;

c = The number of containers in the stack

Part A

When there are 8 containers, we have;

h(8) = 1.5 × 8 + 7.6 = 19.6

The height of the stack made of 8 containers, h(8) = 19.6 cm

Part B

When the tower (height of the stack set) is 40.6 cm tall, we have;

h(c) = 1.5·c + 7.6 = 40.6

∴ The number of containers, c = (40.6 - 7.6)/1.5 = 22

When the tower is 40.6 cm tall, the number of containers in the set, c = 22 containers

Part C

Given that the height stack increases only by the thickness of the wider rim of each added container, we have;

The expression for the height of the stack , 1.5·c + 7.6, is the expression for a straight line equation, m·x + c

The thickness of each rim = The slope, of the line, m = The increase in height with number of containers = 1.5

The number of containers (The independent variable, x) = The number of stacked rims = c

The minimum height = The height of a single container = 1.5 × 1 + 7.6 = 9.1

Therefore, the height of a single container = 9.1 not 7.6

4 0

3 years ago

Tom rented a truck for one day. There was a base fee of $16.99 , and there was an additional charge of 90 cents for each mile dr

12345 [234]

I believe the answer is 193mi

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3 years ago