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3 years ago

Absolute value is ALWAYS written as a positive number because distance is a positive value

Mathematics

2 answers:

kupik [55]3 years ago

6 0

Answer:

It is true

Step-by-step explanation:

Absolute value will always be positive regardless of whether the number is positive or negative. It is the distance away from zero.

Lyrx [107]3 years ago

4 0

The answer is true !!!!!!!

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Solve help 3+ x + 4 =

Kitty [74]

Answer:

7+x

Step-by-step explanation:

Add 3 and 4

3+4= 7

You can't add x since it's a variable so you just leave it as it is.

Hope this helps!

3 0

3 years ago

Phil is standing x+5 feet from the base of a building. The height of the building is 6x−1 feet. Find the function that the strai

Sergio [31]

Answer:

$f(x)=\sqrt{37x^{2}-2x+26}$

Step-by-step explanation:

we know that

To compute the required distance, using properties of triangles

Applying the Pythagoras Theorem

see the attached figure to better understand the problem

$PT^{2}=(6x-1)^{2}+(x+5)^{2}$

convert to expanded form

$PT^{2}=36x^{2}-12x+1+x^{2}+10x+25$

$PT^{2}=37x^{2}-2x+26$

square root both sides

$PT=\sqrt{37x^{2}-2x+26}$

Convert to function notation

$f(x)=\sqrt{37x^{2}-2x+26}$

5 0

4 years ago

X+9=2x-3 FIND THE X!!!!!!

Ierofanga [76]

Answer:

x = 12

Step-by-step explanation:

To find "x", we need to isolate it. This means move "x" to the left side, and everything else to the right side.

When moving a number, do its reverse operation to the entire equation.

x + 9 = 2x - 3

x - 2x + 9 = 2x - 2x - 3 Subtract 2x from both sides

-x + 9 = -3

-x + 9 - 9 = -3 - 9 Subtract 9 from both sides

-x = -12

-x/-1 = -12/-1 Divide both sides by -1 to get rid of the negatives

x = 12 Final answer

Check your answer. Split the equation for the left and right sides. Substitute "x" for the answer "12".

LS: (left side)

x + 9

= 12 + 9 Add

= 21

RS: (right side)

2x - 3

= 2(12) - 3 Multiply before subtracting

= 24 - 3 Subtract

= 21

Both sides equal to 21 when "x" is 12.

LS = RS left side equals right side

Therefore the answer is correct.

3 0

4 years ago

PLSSS HELP WILLING TO HELP ANYONE

Bess [88]

I can't see the whole thing

6 0

3 years ago

Shelby mixes a 25% bleach solution with 5 cups of a 10% bleach solution, resulting in a 20% bleach solution. The table shows the

german

Answer:

Step-by-step explanation:

We will use a system of equations to solve this. We do not know how much of the 25% bleach solution is used; we will use x to represent this. We know that 5 cups of the 10% solution was used. We do not know how much of the resulting solution we have; we will use y to represent this. This gives us the equation

x+5 = y

Using the decimal forms of the percentages for each solution, we have 0.25x (25% solution for x cups), 0.1(5) (10% solution for 5 cups) and 0.2y (20% solution for y cups); this gives us the equation

0.25x+0.1(5) = 0.2y

This gives us the system

$\left \{ {{x+5=y} \atop {0.25x+0.1(5)=0.2y}} \right.$

To use elimination, we will make the coefficients of x the same by multiplying the top equation by 0.25:

$\left \{ {{0.25(x+5=y)} \atop {0.25x+0.5=0.2y}} \right. \\\\\left \{ {{0.25x+1.25=0.25y} \atop {0.25x+0.5=0.2y}} \right.$

We will now subtract the second equation from the first:

$\left \{ {{0.25x+1.25=0.25y} \atop {-(0.25x+0.5=0.2y)}} \right. \\\\0.75 = 0.05y$

Divide both sides by 0.05:

0.75/0.05 = 0.05y/0.05

15 = y

There were 15 cups of the resulting 20% solution. Substituting this into the first equation, we have

x+5=15

Subtract 5 from each side:

x+5-5=15-5

x = 10

7 0

3 years ago

Read 2 more answers