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rewona [7]
3 years ago
13

What property is this? -3 12 = 12 (-3)

Mathematics
1 answer:
Airida [17]3 years ago
4 0
Commutative .........................
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The points (-6, r)<br> and<br> (6,3) lie on a line with slope 3/4. Find the missing coordinate r.
iren [92.7K]

Answer:

r=-6

Step-by-step explanation:

m=\frac{y2-y1}{x2-x1} \\\frac{3-r}{6-(-6)} =\frac{3}{4} \\4(3-r)=3(12)\\12-4r=36\\-4r=24\\r=-6

8 0
3 years ago
Jill buys two bracelets for $5 each and a party dress for $150. She also spends $40 on a pair of shoes.
kolbaska11 [484]
2\cdot\$5+\$150+\$40=\$200-total\ spend\\\\\begin{array}{ccc}\$200&-&100\%\\\\\$40&-&p\%\end{array}\ \ \ \ |cross\ multiply\\\\\\200p=40\cdot100\ \ \ \ |divide\ both\ sides\ by\ 200\\\\p=\frac{4000}{200}\\\\\boxed{p=20\%}\leftarrow answer
8 0
3 years ago
Draw graph of each equation. 2x+3y+18=0
Rasek [7]

Graph is attached has a negative slope of-2/3 and a y-intercept of -6

Step-by-step explanation:

The equation is  2x +3y +18 =0,that can be written in slope-intercept form as;

3y= -2x-18

y= -2/3 x- 6

Use a graph tool to plot the equation and visualize the graph as shown

7 0
3 years ago
Evaluate the piecewise function below for f(0)
slava [35]
0=0
it is n the range of 0≤x≤4

so
do x+3
0+3=3

it is 3
6 0
3 years ago
If mZ DOC = 44º and m2 COB = 80°,
jolli1 [7]

Answer:

44°

Step-by-step explanation:

Given:

m<DOC in circle O = 44°

m<COB in circle O = 80°

Required:

Measure of arc DC.

SOLUTION:

<DOC is a central angle that intercepts arc DC. Central angles are said to be congruent to the arc they intercept.

Therefore, m<DOC = measure of arc DC.

Since m<DOC = 44°, the measure of arc DC = 44°.

Arc DC = 44°

6 0
4 years ago
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