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MariettaO [177]
3 years ago
5

What is the solution to the following system?

Mathematics
1 answer:
Orlov [11]3 years ago
3 0

\left\{\begin{array}{ccc}-2x-y=1&|\cdot(-2)\\-4x-2y=-1\end{array}\right\\\underline{+\left\{\begin{array}{ccc}4x+2y=-2\\-4x-2y=-1\end{array}\right}\ \ \ |\text{add both sides}\\.\ \ \ \ \ 0=-3\ \ \ FALSE\\\\Answer:\ B.\ no\ solutions

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Explian GOLDEN RATION singinficane
Yuliya22 [10]

\large\bold\blue{ANSWER:-}

<em>Golden ratio, also known as the golden section, golden mean, or divine proportion, in mathematics, the irrational number (1 + Square root of√5)/2, often denoted by the Greek letter ϕ or τ, which is approximately equal to 1.618.</em>

5 0
1 year ago
Whats the answer to (7x+3)-(2x+1)
nignag [31]
<span>(7x+3)-(2x+1)
=</span><span>7x  + 3 - 2x - 1
= 5x + 2</span>
6 0
3 years ago
Please answer question now
nata0808 [166]

Answer:

469.42 ft²

Step-by-step explanation:

  • Law of sines;

         w/sin27 = 38/sin40

                   w = sin27*38/sin40

                    w = 26.84 ft

  • Angle x;

            ∡X = 180 - 27- 40 = 113º

  • Area;

              A = 0.5*(26.84)*(38)*sin(113)

            A = 469.42 ft²

8 0
3 years ago
How do you solve this?Please explain.
Readme [11.4K]

Answer:

first you take the square root or 0.9, 2.7, 1.7, and 0.4 which will equal=

0.9= ~0.94

2.7=~1.64

1.7=~1.30

0.4=~0.63

0.94 - 1.64 + 1.30 + 0.63 = 1.23

hope this helps! C:


8 0
3 years ago
Read 2 more answers
Write 5 5/8 as a improper fraction<br> A. 33/8<br> B. 45/8<br> C. 40/8<br> D. 35/8
Vikentia [17]

Answer:

I believe this would be B

Step-by-step explanation:

The way I do improper fractions is called the 'boot'

It is where you take the whole number and the denominator and circle both of them so it kind of looks like a boot and you multiply those together.

So 5 * 8= 40 then you add your numerator to that which gets you 45, and you keep the denominator the same

So you end up with 45/8

Sorry if its a little confusing

Hope this helps :)

8 0
3 years ago
Read 2 more answers
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