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Tatiana [17]
3 years ago
15

Find two numbers whose product is -2, and whose sum is -1.​

Mathematics
1 answer:
PIT_PIT [208]3 years ago
8 0

Answer:

x=-2  \ \ \ and \ \ \  y=1

Step-by-step explanation:

Suppose numbers are <em>x</em> and <em>y</em>

<u>Product of </u><em><u>x</u></em><u> and </u><em><u>y</u></em><u> is </u><em><u>-2</u></em>

<u />xy=-2

And sum of <em>x</em> and <em>y</em> is <em>-1</em>

x+y=-1

x=-2  \ \ \ and \ \ \  y=1

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a blue print of a house is drawn using a scale of 1/4 in=3 ft. If the bedroom of the actual house is 16 in by 12 in, what are th
olchik [2.2K]

Answer:

64 feet × 48 feet

Step-by-step explanation:

Dimensions refers to the measurements of the house including length and breadth of the house.

Given:a blue print of a house is drawn using a scale of \frac{1}{4}\,in=3\,ft

To find:the dimensions of the bedroom on the blueprint

Solution:

Length of the bedroom  = 16 in

So, length of the bedroom in the blueprint = 16×4=64 feet

Breadth of the bedroom = 12 in

So, breadth of the bedroom in the blueprint = 12×4 = 48 feet

Therefore, dimensions of the bedroom in the blue print = 64 feet × 48 feet

8 0
4 years ago
If x = 2/9 and y = 3/7 work out the value of x + y
faltersainse [42]

Answer:

\boxed{\sf \dfrac{41}{63}}

Step-by-step explanation:

hi, it means that we have to compute

\dfrac{2}{9}+\dfrac{3}{7}=\dfrac{7*2+3*9}{7*9}=\dfrac{14+27}{7*9}=\dfrac{41}{63}

8 0
3 years ago
Read 2 more answers
A patio in the shape of a regular octagon (8-sided figure) has a side length of 24 ft and an apothem length of 60 ft. What is th
Damm [24]
Given:
Octagon-shaped patio
Side length = 24ft
apothem length = 60ft

Area of a regular octagon = 2 * a² * (1 + √2)
a = side length

A = 2 * (24ft)² * (1 + √2)
A = 2 * 576ft² * (1 + 1.414)
A = 2 * 576ft² * 2.414
A = 2,780.93 ft²

8 0
3 years ago
Evaluate the following.<br> (iii) sin 30° + tan 40° - cosec 60° / cot 45° + cos 60° - sec 30°​
bearhunter [10]

Sin 30 = 1/2

tan 45 = 1

Cosec 60 = 2 / √3 = 2√3 / 3

cot 45 = 1

Cos 60 = 1/2

sec 30 = 2 / √3 = 2√3 / 3

_______________________________

[ 1/2 + 1 - 2√3/3 ] ÷ [ 1 + 1/2 - 2√3/3 ] = <em>1</em>

The face and denominator of the fraction are exactly the same thus the answer is 1 .

4 0
3 years ago
(b) For a function h(theta)=sin3 theta (Theta is in Radian). <br> Find h(pi/3)<br> Find h(pi/2)
vaieri [72.5K]

Part (i)

Plug in theta = pi/3 to get

h(theta) = sin(3theta)

h(pi/3) = sin(3*pi/3)

h(pi/3) = sin(pi)

h(pi/3) = 0 ... use a calculator or the unit circle

<h3>Answer: 0</h3>

=================================================

Part (ii)

Plug in h = pi/2

h(theta) = sin(3theta)

h(pi/2) = sin(3pi/2)

h(pi/2) = -1

<h3>Answer:  -1</h3>
5 0
4 years ago
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