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3 years ago

Help is highly appreciated

Mathematics

2 answers:

ruslelena [56]3 years ago

6 0

Answer:

3/8

Step-by-step explanation:

Substitute given information into given equation

b=2, c=-7/4

2-(-1/8) + - 7/4

Make 2 into 16/8 (by multiplying it by 8/8 To make denominator the same)

16/8 -(-1/8) + -7/4

17/8 (Because when negative and negative will make positive)

17/8+ -7/4

Make -7/4 into -14/8 (by multiplying it by 2/2 To make denominator the same)

17/8 -14/8 (Because negative and positive will make negative)

3/8 is the final answer

I hope this helps, dont hesitate to ask for any question.

Mark me as brainliest is appreciated.Tq!!

grandymaker [24]3 years ago

3 0

Answer:

Step-by-step explanation:

2-(-1\8)±-7\4 then

2 plus 1\8 plus -7\4

2 plus 1\8 plus -14\8

2 -13\8

2= 16/8

3\8?

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PLEASE HELP, please write it out in the system of equations (step by step)

gizmo_the_mogwai [7]

Answer:

${x,y}={-2,3}$

Step-by-step explanation:

[1] 2x + y = -1

[2] x - 2y = -8 <------- given linear equations

Graphic Representation of the Equations : ----> given in attatchment

y + 2x = -1 -2y + x = -8 < ----- point where they connect is shown in graph

Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = 2y - 8

// Plug this in for variable x in equation [1]

[1] 2•(2y-8) + y = -1

[1] 5y = 15

// Solve equation [1] for the variable y

[1] 5y = 15

[1] y = 3

// By now we know this much :

x = 2y-8

y = 3

// Use the y value to solve for x

x = 2(3)-8 = -2

Solution :

{x,y} = {-2,3}

7 0

2 years ago

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Hey guys ( or gals ) I have no idea what to do please help me.

shepuryov [24]

Answer:

Irrational numbers cannot be written as a fraction, or the ratio of two whole numbers.

You would have to find a GCF (greatest common factor) and multiply it out of the radical.

ex.

$\sqrt{6}$ = 2 x 2 x 2

when you have to multiplier numbers then you can combine two of them to take outside the radical, meaning 2x2x2

2 $\sqrt{2\\}$

so $\sqrt{6}$ would be closest to the positive 2 on the number line and 2 notches.

$\sqrt{11}$

is an irrational number, so it might fall into 3.3 if turned into a decimal.

Step-by-step explanation:

8 0

2 years ago

Please help out and if you know help me show work ??

Ghella [55]

Answer: 14

Step-by-step explanation:

Consecutive even numbers would be {2, 4, 6, 8, 10, ...}

Let x represent the smallest number, then x + 2 is the middle number and x + 4 is the largest number.

1st number: x

2nd number: x + 2

3rd number: x + 4

1st number + 2nd number + 3rd number = Sum

(x) + (x + 2) + (x + 4) = 48

3x + 6 = 48

3x = 42

x = 14

1st number: x ⇒ x = 14

2nd number: x + 2 ⇒ 14 + 2 = 16

3rd number: x + 4 ⇒ 14 + 4 = 18

Check:

14 + 16 + 18 = 48 $\checkmark$

7 0

3 years ago

The sum of two numbers a and b is 7 and the difference between them is 2. What is the value of a x b ? Give your answer as a mix

Andre45 [30]

Answer:

45/4

Step-by-step explanation:

We can interpret the question to have two equation which can be solve simultaneously

a+b=7------------(1)

a-b=2------------(2)

From eqn(2) make a subject of formula

a=2+b--------(3)

Substitute the (3) into eqn(1)

a+b=7------------(1)

2+b+b=7

2b=7-2

2b=5

b=5/2

From equation (3) substitute value of b to find a

a=2+b--------(3)

a= 2+5/2

a=9/2

Then What is the value of a x b ?

9/2× 5/2

=45/4

8 0

2 years ago

The area of a rectangular vegetable patch is 42 square meters. It is 7 meters long. How wide is it?

Lyrx [107]

42÷7=6 meters

I hope it helped!!!:)

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3 years ago

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