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ale4655 [162]
3 years ago
9

Write a verbal description of the expression below 7(b+5)

Mathematics
1 answer:
lord [1]3 years ago
7 0
The answer is 7b+35 because the seven multiplies by the b and the 5 meaning that you multiple the number that’s on the outside with what’s on the inside and be b is a variable it cannot be multiplied so you combine 7 and b which gives you 7b and then you multiply 7 and 5 which gives you 35
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What is the quotient of 9−x^2 divided by 3x and x^2+6x+9 divided by 3x?
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Answer:

44 rem

Step-by-step explanation:

Sorry i dont have an explanation

5 0
2 years ago
What is the equation of the axis of symmetry do the quadratic function f(x) = -(x+4) (x-1)​
miv72 [106K]

9514 1404 393

Answer:

  x = -3/2

Step-by-step explanation:

The zeros of the function are the values of x that make the factors zero:

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The axis of symmetry is the vertical line halfway between these zeros.

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The equation of the axis of symmetry is x = -3/2.

8 0
3 years ago
How much should a family deposit at the end of every 6 months in order to have $4000 at the end of 3 years? The account pays 5.9
ra1l [238]

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PV_{ord}=C(\frac{1-(1+i)^{-kn}}{\frac{i}{k}})

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\begin{gathered} C=\text{ payments each period} \\ i=\text{ interest rate} \\ n=\text{ number of periods} \\ k=\text{ number of times the interest is compounded} \end{gathered}

Since the interest is compounded semi-annually this means that it is compounded 2 times a year, therefore, k = 2. Now we need to convert the interest rate into decimal form. To do that we will divide the interest rate by 100:

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Now we substitute the values:

PV_{ord}=4000(\frac{1-(1+0.059)^{-2(3)}}{\frac{0.059}{2}})

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Therefore, the present value must be $39462.50

8 0
1 year ago
Factorise completely 3m^2-48​
Helen [10]

Answer:

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Step-by-step explanation:

factoring means taking out a common multiple of all the terms in the expression

in this case, if you multiply 3 and m^2, 3 and -16, you would get 3m^2-48​

so you take the three and put it outside of the parenthesis that contains the factored terms

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3 0
3 years ago
This table shows the change in temperature x hours after sunset.
Drupady [299]

Refer to the attachment

3 0
2 years ago
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