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2 years ago

Find the area of the triangle with A =42 degrees, b = 8 feet, and c = 5 feet. Round to the nearest tenth.

Mathematics

2 answers:

nataly862011 [7]2 years ago

8 0

Answer:

13.4 feet squared

Step-by-step explanation:

Just took the test on edge

emmasim [6.3K]2 years ago

5 0

We will use the formula:
Area = 1/2*a*c*sinB

where a and c are the length of the sides and B is the angle between those 2 sides

Area = 1/2*5*8*sin42
Area = 20*sin42
sin 42 = <span>0.669130606359
Area = </span>13.38261212718

Rounded to the nearest tenth Area is equal to 13.4

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A triangle has a base of 6 yards and a height of 9 yards. By how much does the height need to decrease for the area to decrease

ELEN [110]

3.5 yards

Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out

3 0

2 years ago

reflect (7,4) across the x-axis then reflect the result across the y-axis what are the coordinates of the final point

Andrews [41]

The coordinates of the final point after the two reflections is (-7, -4)

<h3>How to reflect a point across an axis?</h3>

For a point (x, y), a reflection across the x-axis gives the point (x, -y), while for a point (x, y) a reflection across the y-axis gives (-x, y).

In this case, we have the point (7, 4), first we reflect across the x-axis, so we get the point (-7, 4).

Now we reflect across the y-axis, so the sign of the y-component changes, and we get (-7, -4)

So the coordinates of the final point after the two reflections is (-7, -4).

If you want to learn more about reflections, you can read:

brainly.com/question/4289712

8 0

2 years ago

Write an absolute value equation that has 3 and 11 as its solution

worty [1.4K]

Answer:

|(x-3)(x-11)|=0

5 0

2 years ago

A table of values of a linear function is shown below.

ikadub [295]

Given:

A table of values of a linear function.

To find:

The slope, y-intercept and equation of the function.

Solution:

Take any two points on the table.

Let the points are (-1, -3) and (0, -6).

Slope of the line:

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

$$m=\frac{-6-(-3)}{0-(-1)}$

$$m=\frac{-6+3}{0+1}$

$$m=\frac{-3}{1}$

m = -3

Slope of the function = -3

y-intercept of the function is the point where x = 0.

In the table y = -6 when x = 0

y-intercept = -6

Equation of a line:

y = mx + c

where m is the slope and c is the y-intercept

y = -3x + (-6)

y = -3x - 6

Equation of a function is y = -3x - 6.

3 0

3 years ago

Can u please help me with this u know who u are

Dahasolnce [82]

4/7s+6/7 is the answer

4 0

3 years ago