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2 years ago

13

What is 69 + 420 -14 + 86 - (4^2) = ?

2 answers:

Korolek [52]2 years ago

8 0

Answer:

545

You can search for any mathematical expression

Step-by-step explanation:

kodGreya [7K]2 years ago

4 0

Answer:

The answer is 545

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Which of the following equations has the same solutions as the equations 3x+2y=-12

Marianna [84]

B, C, E, F

<h2>Explanation:</h2>

In this problem, we have the following equation of a line written in Standard form:

$3x+2y=-12$

So we need to choose the equations that has the same solutions as this equation. If we multiply each equation by a constant term and find the same solution as the given equation, then they will have the same solution. This is only true fro options B, C, E and F.

Option B.

$-3x-2y= 12 \\ \\ Multiply \ both \ sides \ by \ -1: \\ \\ (-1)(-3x-2y)=(-1)(12) \\ \\ 3x+2y=-12$

So we get the same given equation. This option is valid!

Option D.

$15x+10y= -60 \\ \\ Multiply \ both \ sides \ by \ 1/5: \\ \\ (\frac{1}{5})(15x+10y)=(\frac{1}{5})(-60) \\ \\ 3x+2y=-12$

So we get the same given equation. This option is valid!

Option E.

$6x+2y= -12 \\ \\ Multiply \ both \ sides \ by \ 1/2: \\ \\ (\frac{1}{2})(6x+2y)=(\frac{1}{2})(-24) \\ \\ 3x+2y=-12$

So we get the same given equation. This option is valid!

Option F.

$1.5x+y= -6 \\ \\ Multiply \ both \ sides \ by \ 2: \\ \\ (2)(1.5x+y)=(2)(-6) \\ \\ 3x+2y=-12$

So we get the same given equation. This option is valid!

For the other options, there is no any constant term that multiplies both sides of the equation and gives us the same given equation.

<h2>Learn more:</h2>

About this subject: brainly.com/question/8810210

#LearnWithBrainly

7 0

3 years ago

X - y + y = <br> help plz plz helpppp

Amiraneli [1.4K]

Answer:

x - y + y =x is your answer hope it helps

Step-by-step explanation:

like terms can be add or subtract

8 0

3 years ago

Read 2 more answers

5. Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately norma

Triss [41]

Answer:

percent (%) of ancient prehistoric thinner than 3 is 0.0013

Step-by-step explanation:

Given data

mean = 5.1 millimeters (mm)

standard deviation = 0.7 mm

to find out

percent (%) of ancient prehistoric thinner than 3

solution

we have given mean and SD

so Z will be = x -mean / SD

Z = ( x - 5.1 ) / 0.7

so P( x < 3 ) = P ( (x - 5.1 ) / 0.7 < ( 3 - 5.1 ) / 0.7 )

P( Z = ( 3 - 5.1 ) / 1.5 )

P( Z = -3 ) = 0.0013

percent (%) of ancient prehistoric thinner than 3 is 0.0013

4 0

3 years ago

Determine algebraically all points where the graphs of XY equal 10 and Y equals X +3 intersect

Gelneren [198K]

XY=10
Y=X+3
X(X+3)=10
X^2+3X=10
X^2+3X-10
(X-2)(X+5)

6 0

3 years ago

What is the quotient <br> 1/2 divided by 8

bonufazy [111]

$1/2$ (or 0.5) divided by 8 is 0.0625

First you must set up the equation.

$\frac{0.5}{8}$

Then, divide 0.5 by 8

0.0625

5 0

3 years ago

Read 2 more answers