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3 years ago

Tìm min: 4 căn x -5/ 3 căn x+2

Mathematics

1 answer:

kkurt [141]3 years ago

4 0

Answer:

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Step-by-step explanation:

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It always confuses me when they make me do the baby steps

VladimirAG [237]

Algebra always makes things sound harder than they actually are, and weird vocabulary can mix up the steps we knew so well.

Part 1: Multiply the first equation by a 2 so that you can cancel out the y variable.

6x - 2y = 0

5x + 2y = 22

Part 2: Actually cancel out the y variables, and combine like terms.

11x = 22

Part 3: Solve for "x" by dividing both sides by 11

x = 2

Part 4: Substitute the variable "x" with the value we just solved for in the original equation.

3(2) - y = 0

6 - y = 0

Then, solve for y by adding y to both sides

6=y

Solution Set = {2,6}

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3 years ago

Help me lol please and thank you

Sindrei [870]

Well the opposite of addition is subtraction
to find n move 27 to the other side which makes it negative
15+ (-27) =-12

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3 years ago

What is the sum of the last four term of the series 7+9+11+...+21?

Vanyuwa [196]

Answer:

112

Step-by-step explanation:

7+9+11+13+15+17+19+21

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4 years ago

The football team gained 22 yards and then lost 26 yards. What was the team’s overall change in position on the field? 48 - 4 -

4vir4ik [10]

Answer:

Step-by-step explanation:

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3 years ago

A 5.9-foot-tall-man stands near a 12-foot statue. The man places a mirror on the ground a certain distance from the base of the

jeka94

Answer:

14.24 foot far is the mirror from the base of the statue.

Step-by-step explanation:

Proportion states that the two ratios or fractions are equal.

As per the statement:

See the diagram as shown below:

Height of a boy = 5.9 foot tall

Height of a statue = 12 foot.

Distance of a boy from the mirror = 7 feet.

Let x be the distance of the mirror from the base of the statue.

then by definition of proportion we have;

$\frac{\text{Height of a boy}}{\text{Distance of a boy from the mirror}}= \frac{\text{Height of a statues}}{\text{Distance of mirror from the base of the statue} }$

Substitute the given values we have;

$\frac{5.9}{7} =\frac{12}{x}$

By cross multiply we have;

$5.9x = 84$

Divide both sides by 5.9 we have;

x = 14.24 ft

Therefore, 14.24 foot far is the mirror from the base of the statue.

5 0

3 years ago