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torisob [31]
3 years ago
5

Simplify 7a – 11b + 4ab – 6a + 5b.

Mathematics
1 answer:
AnnZ [28]3 years ago
5 0
7a-6a-11b+5b+4ab
=a-6b+4ab
Final answer
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Consider a triangle ABC like the one below. Suppose that a = 42, b=44, and c= 52. (The figure is not drawn to scale.) Solve the
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In the triangle , Angle A is 51.1 degrees,  B is 54.5 degrees , C  is 74.4 degrees.

<h3>What is a Triangle ?</h3>

A triangle is defined as a polygon with three sides , three angles and three vertices.

Using the Law of Cosine to solve the Triangle and to determine the value of all the angles

c² = a²+ b² -2abCosC

a = 42 , b=44 , c = 52

52² = 42² + 44² -2 * 42 * 44 cos C

2704 = 1764 + 1936 -3696 cos C

cos C = 0.269

C =74.4 ° (degrees)

Similarly calculating for A and B will give

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2 years ago
What equation has a slope of 2 and a y intercept of -5
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Answer:

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Step-by-step explanation:

Given:

The slope  = 2

Intercept of y = -5

To Find:

The equation of the line = ?

Solution:

The slope-intercept form of a line is a way of writing the equation of a line so that the slope of the line and the y-intercept are easily identifiable. The slope is the steepness of the line, and the y-intercept is the place the line crosses the y-axis.

The equation of the line in the slope intercept form is

y = mx+b

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b is the y intercept

Now substituting the given values we get

y  = (2)x  + (-5)

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The original price of a scarf was $16. During a store-closing sale, a shopper saved $12 on the scarf. What percentage discount d
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N (9, -1 )

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Anton bought a new sofa that was originally $700 and used a coupon for 30%.
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