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2 years ago

Help me answer this question

Mathematics

1 answer:

Zigmanuir [339]2 years ago

8 0

Answer:

3.5

Step-by-step explanation:

27/3=9 and 18/3 is 6 so 10.5/3 is 3.5

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What is estimate 703 and 620 sum

coldgirl [10]

703+620≈1320

first you have to round 703 to 700, because it's an estimation, then you can add 700 to 620, and it'll be easier than 703+620.

3 0

3 years ago

Read 2 more answers

Helpppppppppp ASAP pls and thankyouu

natima [27]

Answer:

1. The graph of the inequality, y > -3·x - 2, created with MS Excel is attached showing the following characteristics;

Linear

Shade is above the line

2. The graph of the inequality, y ≤ │x│ - 3, created with MS Excel is attached showing the following characteristics

Linear

Shade is below the line

3. The graph of the inequality, y < x² - 4, created with MS Excel s attached showing the following characteristics;

Quadratic

Shade below the line

Step-by-step explanation:

8 0

2 years ago

How do you work out this equation

Gnom [1K]

Answer:

x is equal to negative one, and y is equal to negative four.

Step-by-step explanation:

You can do this by solving one of the equations by either x or y, then substituting it into the other. Let's solve the second one for y:

$2y = 3x - 5\\y = \frac{3x - 5}{2}$

Now we'll substitute that into the first equation:

$9x - 2y = -1\\9x - 2(\frac{3x - 5}{2}) = -1\\9x - 3x + 5 = -1\\6x + 5 = -1\\6x = -6\\x = -1$

So we now know that x is equal to -1. We can simply substitute that into one of the original equations to find y:

$2y = 3x - 5\\2y = 3(-1) - 5\\2y = -3 - 5\\2y = -8\\y = -4$

We now know that x is equal to -1, and y is equal to -4. We can also check our answer by plugging that -4 into the other equation, and see if we still get -1:

$9x - 2y = -1\\9x - 2(-4) = -1\\9x + 8 = -1\\9x = -1 - 8\\9x = -9\\x = -1$

So we know that our answer is correct.

3 0

2 years ago

Factorise: (3x - 1/2 y + 1/3 z)^2

Rufina [12.5K]

Given:

$(3x - \frac{1}{2} y + \frac{1}{3} z)^{2}$

Taking the LCM as 6,

$( \frac{1}{6} (18x−3y+2z))^{2}$

Applying the product rule to $\frac{1}{6} (18x−3y+2z)^{2}$ :-

$= > ( \frac{1}{6})^{2} (18x−3y+2z)^{2}$

Now applying the product rule to 1/6:-

$\frac{1^{2} }{ {6}^{2} }(18x - 3y + 2z)^{2}$

Hence, the answer.

7 0

2 years ago

Read 2 more answers

A line has a slope of 1 9 and includes the points ( – 6,z) and (3,1). What is the value of z?

vaieri [72.5K]

Answer:

z = - 170

Step-by-step explanation:

Calculate the slope m using the slope formula and equate to 19

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (3, 1) and (x₂, y₂ ) = (- 6, z)

m = $\frac{z-1}{-6-3}$ = $\frac{z-1}{-9}$ = 19 ( multiply both sides by - 9 )

z- 1 = - 171 ( add 1 to both sides )

z = - 170

5 0

2 years ago