solve the system of equations in part e in at least two ways. write a word problem that can be solved using a system of two linear equations. solve the problem and give the meaning of the answer.

Answers

Answer 1

Answer: Yes, but with the following two rules to remember. If you multiply or divide both sides by a negative number, then the inequality sign is reversed (> becomes ). Adding and subtracting numbers have no effect on the direction of the inequality. [ Also, if you have a 'not equals' sign, then it is unaffected by the multiplication. The same is true if you take the reciprocal of both sides. Example: with the equation: 1/x = 2, take the reciprocal and x = 1/2. With the inequality 1/x 1/2. You could also solve it by multiplying both sides by x, then dividing both sides by 2, and get 2 2. Another example: 3 - x > 7. Subtract 3 from both sides: -x > 4. Multiply both sides by -1: x 7 + x, then subtract 7 from both sides: -4 > x, which means the same as x < -4

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Triangle ABC is similar to triangle FED, find the measure of x. A. X = 9 B. X = 11 C. X = 110 D. X = 231

Answers

Answer:

$A+B+C=130$

$F+E+D=273$

Step-by-step explanation:

From the question we are told that:

Dimension of ABC

A=9

B=11

C=110

Dimension of FED

D=231

Generally the equation for the similar triangles is mathematically given by

$(A)/(F)=(B)/(E)=(C)/(D)$

Therefore solving for F

$(9)/(F)=(110)/(231)$

$F=(9*231)/(110)$

$F=18.9$

Therefore solving for E

$(11)/(E)=(110)/(231)$

$E=(11*231)/(110)$

$E=23.1$

Measure of $\triangle ABC$

$A+B+C=130$

Measure of $\triangle FED$

$F+E+D=273$

Which statement is true about the equation 3.5z = 2.25z − 4.25 + 6.25?It has no solution.
It has one solution.
It has two solutions.
It has infinitely many solutions.

Answers

It has one solution, hope that helped

B. It has one solution

z=1.6

Given that / and /, which postulate or theorem can be used to show that all 3 center triangles in the Antigua and Barbuda flag are similar?

Answers

Given that we assume that all the bases of the triangles are parallel.

We can use AAA or Angle-Angle-Angle to prove that these triangles are similar.

Each parallel line creates the same angle when intersecting with the same side.
For example:
The bases of each triangle cross the left side of all the triangle.
Each angle made by the intersecting of the the parallel base and the side are the same.
Thus, each corresponding angle of all the triangles are congruent.
If these angles are congruent, then we have similar triangles.

Actually, the answer is ASA postulate!!!! I just took the county geometry quiz and got it correct

I am factor of 48, I am bigger than 4 square. I am smaller than 5. WHAT IS THE MYSTERY NUMBER

Answers

If it is betwern 4² and 5² and is a factor of 48,Then it must be 24 as 24*2=48

48 would be your answer, this is a number between the factors 4^2 & 5^2

An object launched vertically from a point that is 37.5 feet above ground level with an initial velocity of 48.6 feet per second can be represented by the equation h=−16t^2+48.6t+37.5, where h is the height of the object and t is the time after the object is launched. How long does it take the object to hit the ground?

Answers

Answer: 3.675 seconds

Step-by-step explanation:

Hi, when the object hits the ground, h=0:

h=−16t^2+48.6t+37.5

0=−16t^2+48.6t+37.5

We have to apply the quadratic formula:

For: ax2+ bx + c

x =[ -b ± √b²-4ac] /2a

Replacing with the values given:

a=-16 ; b=48.6; c=37.5

x =[ -(48.6) ± √(-48.6)²-4(-16)37.5] /2(-16)

x = [ -48.6 ± √ 4,761.96] /-32

x = [ -48.6 ± 69] /-32

Positive:

x = [ -48.6 + 69] /-32 = -0.6375

Negative:

x = [ -48.6 - 69] /-32 = 3.675 seconds (seconds can't be negative)

Feel free to ask for more if needed or if you did not understand something.

The object to hit the ground takes 3.675 seconds.

An initial velocity of 48.6 feet per second

When the object hits the ground, h=0:

h=−16t²+48.6t+37.5

0=−16t²+48.6t+37.5

We have to apply the quadratic formula:

For: ax²+ bx + c

x =[ -b ± √b²-4ac] /2a

Substituting with the values given:

a=-16 ; b=48.6; c=37.5

x =[ -(48.6) ± √(-48.6)²-4(-16)37.5] /2(-16)

x = [ -48.6 ± √ 4,761.96] /-32

x = [ -48.6 ± 69] /-32

Positive:

x = [ -48.6 + 69] /-32 = -0.6375

Negative:

x = [ -48.6 - 69] /-32 = 3.675 seconds (seconds can't be negative)

For such more questions on object

brainly.com/question/28032639

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12. Find the volume of a cylinder with a diameter of 10 inches and a height of 20 inches. Use 3.14 for m. A. 705 cu. in. B. 1,570 cu. in. 62.8 cu. in. 6,280 cu. in.

Answers

it is d. 6280 cu. in.

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