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3 years ago

PLS HELP DUE VERY SOON

Mathematics

1 answer:

Naily [24]3 years ago

4 0

Answer:

y=1/2x+0

Step-by-step explanation:

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I need 3 questions answered please.

kakasveta [241]

Answer:

$3) \: \: 113 {ft}^{2}$

$4) \: false$

$5) \: 70 {ft}^{2}$

Step-by-step explanation:

3) Area of a circle is

$\pi \times {r}^{2}$

Where r = 6

Thus,

$area = \frac{22}{7} \times {6}^{2}$

$area = \frac{22}{7} \times 36$

$area = 3.143 \times 36$

$area = 113 {ft}^{2} \: (nearest \: whole \: number)$

4) False

Area of a circle is measured by the formula below:

$area = \pi \times {r}^{2}$

5) The formula for calculating the area of a rectangle is given thus:

$area \: of \: a \: rectangle = l \times w$

Where, l = 10ft; w = 7ft

$area = 10ft \times 7ft = 70 {ft}^{2}$

8 0

3 years ago

Use mental math to solve the problem 8.02 − 5.98

Zinaida [17]

Round off 8.02 to 8 and 5.98 to 6. Then subtract: 8 - 6 = 2 (approximately)

4 1

3 years ago

Read 2 more answers

Algebra 1 help please

Zielflug [23.3K]

Short leg = ?
Long leg = 1/2x + 11
Hypotenuse = 2x + 1

For this you'd need to use the Pythagorean Theorem to find the short leg.

Pythagorean Theorem - a^2 + b^2 = c^2

3 0

3 years ago

Find all the complex zeros for the polynomial function. show work<br> f(x)=x^3-7x^2+x-7

ANTONII [103]

Answer:

±i

Step-by-step explanation:

Observing that the first two coefficients are the same as the last two, we can factor this function by grouping.

f(x) = (x^3 -7x^2) +(x -7) = x^2(x -7) +1(x -7)

f(x) = (x^2 +1)(x -7)

The factor x-7 has a real zero at x=7, so the complex zeros come from the quadratic factor (x^2 +1).

Setting that to zero and solving for x, we find ...

x^2 +1 = 0

x^2 = -1

x = ±√(-1) = ±i

The complex zeros are x = +i and x = -i.

3 0

3 years ago

Find the length of side AB.<br>Give your answer to 1 decimal place.

Luden [163]

Answer:

The answer is below

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. Types of triangles are isosceles, scalene, equilateral, acute, obtuse and right angled triangle. A right angle triangle is a triangle with one angle being 90°.

Trigonometric ratios is used to show the relationship between the angles and sides of a right angled triangle. Examples are:

sinΘ = opposite/hypotenuse; cosΘ = adjacent/hypotenuse; tanΘ = opposite/adjacent

From the question:

cos(62) = AB/12

AB = 12 * cos(62)

AB = 5.6 cm

4 0

3 years ago