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2 years ago

What is the product of (-3s + 2t)(4s - t)

Mathematics

1 answer:

nikdorinn [45]2 years ago

8 0

Answer:

-12s^2+11st-2t^2

Step-by-step explanation:

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Mhanifa can you please help? I will mark brainliest!

Rzqust [24]

Answer:

<u>Given function</u>

h(x) = 2x - 1

#15 Find the inverse of h(x)

<u>Substitute x with y and h(x) with x and solve for y:</u>

x = 2y - 1
2y = x + 1
y = 1/2x + 1/2

<u>The inverse is:</u>

h⁻¹(x) = 1/2x + 1/2

#16 The graph with both lines is attached.

The x- and y-intercepts of both functions have reversed values.

#17 Table of the inverse function will contain same numbers with swapped domain and range.

<u>Initial look is like this:</u>

<u>x | -3 | -2 | -1 | 0 | 1 | 2 | 3</u>
h⁻¹(x) | -1 | | 0 | | 1 | | 2

<u>The rest of the table is filled in by finding the values:</u>

<u>x | -3 | -2 | -1 | 0 | 1 | 2 | 3</u>
h⁻¹(x) | -1 | -0.5 | 0 | 0.5 | 1 | 1.5 | 2

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2 years ago

Jimmy know the route from his house to his school, and can name each street along the way.

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A) Mental Map .......

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3 years ago

Which ordered pair makes both inequalities true? y > –2x + 3 y < x – 2 (0,0) (0,–1) (1,1) (3,0)

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The answer is (3,0).

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2 years ago

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SpyIntel [72]

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3 years ago

6. A sector of a circle is a region bound by an arc and the two radii that share the arc's endpoints. Suppose you have a dartboa

Aliun [14]

Given the dartboard of diameter $20in$ , divided into 20 congruent sectors,

The central angle is $18^\circ$

The fraction of a circle taken up by one sector is $\frac{1}{20}$

The area of one sector is $15.7in^2$ to the nearest tenth

The area of a circle is given by the formula

$A=\pi r^2$

A sector of a circle is a fraction of a circle. The fraction is given by $\frac{\theta}{360^\circ}$ . Where $\theta$ is the angle subtended by the sector at the center of the circle.

The formula for computing the area of a sector, given the angle at the center is

$A_s=\dfrac{\theta}{360^\circ}\times \pi r^2$

<h3>Given information</h3>

We given a circle (the dartboard) with diameter of $20in$ , divided into 20 equal(or, congruent) sectors

<h3>Part I: Finding the central angle</h3>

To find the central angle, divide $360^\circ$ by the number of sectors. Let $\alpha$ denote the central angle, then

$\alpha=\dfrac{360^\circ}{20}\\\\\alpha=18^\circ$

<h3>Part II: Find the fraction of the circle that one sector takes</h3>

The fraction of the circle that one sector takes up is found by dividing the angle a sector takes up by $360^\circ$ . The angle has already been computed in Part I (the central angle, $\alpha$ ). The fraction is

$f=\dfrac{\alpha}{360^\circ}\\\\f=\dfrac{18^\circ}{360^\circ}=\dfrac{1}{20}$

<h3>Part III: Find the area of one sector to the nearest tenth</h3>

The area of one sector can be gotten by multiplying the fraction gotten from Part II, with the area formula. That is

$A_s=f\times \pi r^2\\=\dfrac{1}{20}\times3.14\times\left(\dfrac{20}{2}\right)^2\\\\=\dfrac{1}{20}\times3.14\times10^2=15.7in^2$

Learn more about sectors of a circle brainly.com/question/3432053

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