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DanielleElmas [232]
3 years ago
7

If y = 3ab + 2b3, what is y when a = 1 and b = 2

Mathematics
1 answer:
Dominik [7]3 years ago
5 0

Answer:  The required value of y is 22.

Step-by-step explanation:  We are given the following function of a and b :

y=3ab+2b^3~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We are to find the value of y when a = 1 and b = 2.

To find the required value of y, we need to substitute the values of a and b in equation (i).

From (i), we get

y=3\times1\times2+2\times2^3=6+16=22.

Thus, the required value of y is 22.

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Liula [17]

308 is greater than 215.06

Solution:

Given data: 215.6 ÷ 0.7

Let us first convert the fraction without decimal.

To remove a decimal point multiply and divide the fraction by 10.

\frac{215.6}{0.7}=\frac{215.6\times10}{0.7\times10}

       =\frac{2156}{7}

If we divide 2156 by 7, we get quotient as 308.

Now, to compare the quotient with the number 215.06.

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Hence, 308 is greater than 215.06.

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The answer for it should be: true

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Q##..15 Graph the equation. y= 4x - 3
vlada-n [284]

Answer: Please, see the attached file.

Thanks.

Solution:

We can graph using the intercepts:

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Point=(x,y)=(0,-3)

(2) x-intercept, when y=0

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With these pair of points (0, -3) and (0.75,0) we can draw the right line

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That is incorrect because if we consider the smallest odd number, 2, is an even number. We can say that except 2, all prime numbers are odd.

14. section is wrong. For example, both numbers can be negative, so when we multiple these two, it will equals a positive value.

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I am not sure but I can give you an app called photo math and they would answer your question. Hope that helped:))
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