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4 years ago

How is 2-2×6+3=-7?The answer to this question

Mathematics

1 answer:

alekssr [168]4 years ago

5 0

Answer:

PEMDAS

Step-by-step explanation:

Using PEMDAS or the order of operations, you first multiply 2 by 6

2-2×6+3

2-12+3

Then you can go in any order since addition and subtraction take the same precedence.

-10+3=-7

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Which of the following equations describes the line shown below? Check all

nexus9112 [7]

Answer:

C and D

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

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

with (x₁, y₁ ) = (- 3, - 6) and (x₂, y₂ ) = (9, 3) ← 2 points on the line

m = $\frac{3+6}{9+3}$ = $\frac{9}{12}$ = $\frac{3}{4}$

Using (a, b ) = (9, 3 ) , then

y - 3 = $\frac{3}{4}$ (x - 9) → C

Using (a, b ) = (- 3, - 6 ), then

y - (- 6) = $\frac{3}{4}$ (x - (- 3) ) , that is

y + 6 = $\frac{3}{4}$ (x + 3) → D

4 0

3 years ago

B is the midpoint of AC . AB=8V, and AC=2V +42. what is BC

rodikova [14]

Ab and bc are equal.
Automatically bc = 8v
8v + 8v = 16v
16v = 2v + 42
14v = 42
V = 3
8(3) + 8(3) = 2(3)+42
48=48
Bc = 8v

8 0

4 years ago

A line passes through the points (2,4) and (-4,-1). Find its equation in slope-intercept form. (2 points, 1 for work, 1 for equa

vovangra [49]

<h2>Hello!</h2>

The answer is:

The equation of the line in slope-intercept form:

$y=\frac{5}{6}x+\frac{7}{3}$

To find the equation in slope-intercept form, we need to follow the next steps:

Find the slope of the line:

Using the slope formula, we have:

$m=\frac{y_2-y_1}{x_2-x_1}$

We are given the points:

$(2,4)\\(-4,-1)$

So, substituting we have:

$m=\frac{(-1)-(4)}{-4-2}$

$m=\frac{-5}{-6}$

$m=\frac{5}{6}$

Find the "b" value:

Now that we know the value of the slope, we can write the equation of the line:

$y=\frac{5}{6}x+b$

In order to find "b" we need to substituite any of the given points, we know that line is thru both of the given points, so, substituting (2,4) we have:

$4=\frac{5}{6}*2+b\\\\4=\frac{10}{6}+b\\\\4=\frac{5}{3}+b\\\\b=4-\frac{5}{3}=\frac{(3*4)-5}3}=\frac{12-5}{3}=\frac{7}{3}$

Now that we know the slope and "b", we can write the equation of the line in slope-intercept form:

$y=\frac{5}{6}x+\frac{7}{3}$

Have a nice day!

5 0

3 years ago

What is 8 9th +4 7th

tamaranim1 [39]

The answer would be 92 over 63(92/63) since the least common denominator is 63

7 0

4 years ago

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John thunderhawk is making furniture he finds that to design a particular cabitnet and set up his shop to produce it cost $1800.

Ugo [173]

9 cabinets is what he must sell

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4 years ago

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How is 2-2×6+3=-7?The answer to this question​

How is 2-2×6+3=-7?The answer to this question