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3 years ago

Multiply : 1 2/5 x 1/4

Mathematics

2 answers:

777dan777 [17]3 years ago

8 0

Answer:

0.35

Step-by-step explanation:

ivanzaharov [21]3 years ago

3 0

Answer:

7/20

Step-by-step explanation:

1 2/5 ×1/4=7/20

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What is the area of a triangle in square units if base =11 and height=20

Sergio [31]

Answer: 110

Step-by-step explanation:

11x20=220 220\2=110

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4 years ago

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Solve the simultaneous equation y-2x+1=0 and 4x^2+3y^2-2xy=7

Lapatulllka [165]

The first equation is $y-2x+1=0$

$y=2x-1$ (Equation 1)

The second equation is $4x^{2}+3y^{2}-2xy=7$ (Equation 2)

Putting the value of x from equation 1 in equation 2.

we get,

$4x^{2}+3(2x-1)^{2}-2x(2x-1)=7$

$4x^{2}+3(4x^{2}+1-4x)-4x^{2}+2x=7$

by simplifying the given equation,

$12x^{2}-10x-4=0$

$6x^{2}-5x-2=0$

Using discriminant formula,

$D=b^{2}-4ac$

$D=25-4 \times 6 \times -2 = 73$

Now the formula for solution 'x' of quadratic equation is given by:

$x=\frac{-b+\sqrt{D}}{2a} and x=\frac{-b-\sqrt{D}}{2a}$

$x=\frac{5+\sqrt{73}}{12} and x=\frac{5-\sqrt{73}}{12}$

Hence, these are the required solutions.

8 0

3 years ago

What’s the answer I don’t understand it or know it.

fredd [130]

Answer:

I tried solving it and didn't get same exact numbers but I got 8.67 million people so it might be answer choice B.

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2 years ago

exercise 5 explain how you know the values of the digits in the number 58?then exercise 6 `explain why you should record a 1 in

melamori03 [73]

58 is 50 plus 8. So its 50 and 8.That is for the first one.

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3 years ago

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sesenic [268]

Answer:

contradiction

Step-by-step explanation:

they are both the same thing so how can they contradict? they can because the sign in the middle is greater than. if you put 1 in as x, you will get 2 is greater than 2 which does not make sense

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3 years ago

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