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3 years ago

Find the area. and explain step by step please.

Mathematics

1 answer:

Shtirlitz [24]3 years ago

8 0

Answer:

3. The answer is 5 * 9 = 45

4. The answer is 10 * 10 = 100

5. The answer is 11* 18 = 198

6. The answer is 13 * 5 = 65

Step-by-step explanation:

These are 4 sided polynomials so to get the area, you multiply one side by the other side. Hope this helps.

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Consider the function below. f(x)= x^3 + 2x^2 - x - 2 plot the x and y intercepts of the function

dimulka [17.4K]

In the Figure below is shown the graph of this function. We have the following function:

$f(x)=x^3+2x^2-x-2$

The $y-intercept$ occurs when $x=0$ , so:

$f(0)=(0)^3+2(0)^2-(0)-2=-2$

Therefore, the $y-intercept$ is the given by the point:

$\boxed{(0,-2)}$

From the figure we have three $x-intercepts$ :

$\boxed{P_{1}(-2,0)} \\ \boxed{P_{2}(-1,0)} \\ \boxed{P_{3}(1,0)}$

So, the $x-intercepts$ occur when $y=0$ . Thus, proving this:

$f(x)=x^3+2x^2-x-2 \\ \\ For \ P_{1}:\\ If \ x=-2, \ y=(-2)^3+2(-2)^2-(-2)-2=0 \\ \\ For \ P_{2}:\\ If \ x=-1, \ y=(-1)^3+2(-1)^2-(-1)-2=0 \\ \\ For \ P_{3}:\\ If \ x=1, \ y=(1)^3+2(1)^2-(1)-2=0$

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3 years ago

Read 2 more answers

Evaluate the expression when a=7 and b=4 36/b+a

Rus_ich [418]

36/7+4
36/11
36÷11=3.27272727.... Repeating

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3 years ago

Reflex angle of 95 degrees

Helen [10]

Step-by-step explanation:

a a reflex angle is more than 180° but less than 360° so in this case the reference angle of 95 degrees we are going to take 360° - 95 degrees to get255°

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2 years ago

Express the trig ratios as fractions in simplest terms.

Neporo4naja [7]

Answer:

See below

Step-by-step explanation:

$\cos M=\frac{adjacent}{hypotenuse}=\frac{56}{70}=\frac{4}{5}\\\\\sin L=\frac{opposite}{hypotenuse}=\frac{56}{70}=\frac{4}{5}$

Hence, both ratios are equal to each other

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1 year ago

Question 3 (1 point) Find the area of the triangle. 26 in 26 in 26 in

MAXImum [283]

Formula of the area of a triangle:

A = hbb/2

Plug in the numbers.

26 · 26/2

= 338

Therefore, the area of the triangle is 338

5 0

2 years ago

Find the area. and explain step by step please.​

Find the area. and explain step by step please.