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zhenek [66]
2 years ago
8

I will offer points to whoever can solve my question

Mathematics
2 answers:
Tatiana [17]2 years ago
8 0

Answer:

what is your questions

xz_007 [3.2K]2 years ago
4 0

Answer:

whats your question? lol

Step-by-step explanation:

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Need help on these three questions please
forsale [732]
3:1/2 ×(11×4)
=1/2×44
=22m squared(2)
pretty sure double check with the example ur self okey so we make sure

in 1:i think it says to multiply lenght times width (L×W)
so its probably
area=l×w
=6 1/2 × 15 1/2
which when i put in the calculator it gives 45/2
7 0
3 years ago
Solve showing steps. Use Insert equation to get the symbol and Ctrl with . For exponents x2 + 3x - 4 = 0 9x2 + 12x + 4 =0 (leave
ipn [44]

Here all the given equations are in the form of

ax^2+bx+c=0

The value of x can be determined by the perfect square method as follows:

ax^2+bx+c=0

\Rightarrow x^2+\frac{b}{a}+\frac{c}{a}=0

\Rightarrow x^2+2\times\frac{b}{2a}+\left(\frac{b}{2a}\right)^2-\left(\frac{b}{2a}\right)^2+\frac{c}{a}=0

\Rightarrow \left(x+\frac{b}{2a}\right)^2=\left(\frac{b}{2a}\right)^2-\frac{c}{a}

\Rightarrow x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\;\cdots(i)

Now, for x^2+3x-4=0

a=1, b=3, c=-4

So, from equation (i)

x=\frac{-3\pm\sqrt{3^2-4\times1\times(-4)}}{2\times1}

\Rightarrow x=\frac{3\pm\sqrt{9+16}}{2}

\Rightarrow x=\frac{3\pm5}{2}

\Rightarrow x=\frac{3+5}{2},\frac{3-5}{2}

\Rightarrow x= 4, -1

Similarly, for 9x^2+12x+4=0

a=9, b=12, c=4

So, from equation (i)

x=\frac{-12\pm\sqrt{12^2-4\times9\times4}}{2\times9}

\Rightarrow x=\frac{-12\pm0}{18}

\Rightarrow x=\frac{-2}{3}

For x^2-2x-3=0

a=1, b=-2, c=-3

x=\frac{-(-2)\pm\sqrt{(-2)^2-4\times1\times(-3)}}{2\times1}

\Rightarrow x=\frac{2\pm\sqrt{16}}{2}

\Rightarrow x=\frac{2\pm4}{2}

\Rightarrow x=\frac{6}{2},\frac{-2}{2}

\Rightarrow x=3.00, -1.00

For x^2-6x+9=0

a=1, b=-6, c=9

x=\frac{-(-6)\pm\sqrt{(-6)^2-4\times1\times9}}{2\times1}

\Rightarrow x=\frac{6\pm0}{2}

\Rightarrow x=3.00

For 2x^2-4x-3=0

a=2, b=-4, c=-3

x=\frac{-(-4)\pm\sqrt{(-4)^2-4\times2\times(-3)}}{2\times2}

\Rightarrow x=\frac{4\pm\sqrt{40}}{4}

\Rightarrow x=\frac{4\pm2\sqrt{10}}{4}

\Rightarrow x=\frac{4+2\sqrt{10}}{4},\frac{4-2\sqrt{10}}{4}

\Rightarrow x=2.58, -0.58

5 0
3 years ago
Can someone help me with this please?
alisha [4.7K]

Answer:

72

Step-by-step explanation:

After finding the median, 49, you must find the median from 71-98, which is 72. P.S. the median is the number in the middle.

7 0
3 years ago
Read 2 more answers
Help me please!!!<br> Please
nasty-shy [4]

Answer:

<h3>ddndndndkfk</h3>

Step-by-step explanation:

menfnfnfncncnleoemellzlsld j

4 0
2 years ago
Jon has 6 kites he and his friends will each fly one kite how many people in all will fly a kit
True [87]

Answer:

  6

Step-by-step explanation:

One person will fly a kite for each of the 6 kites Jon has.

6 people in all will fly a kite.

6 0
2 years ago
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