Identify the expression as a numerical expression or a variable expression. For a variable expression, name the variable.

1 answer:

4 0

The best and most correct answer among the choices provided by the first question is the first choice or letter A.

The expression above is an example of a numerical expression.

I hope my answer has come to your help. God bless and have a nice day ahead!

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The temperature of a chemical compound, in degrees Celsius, changes when the compound is exposed to UV light. The table below sh

SIZIF [17.4K]

So, we are given the y intercept, and since we know c is the same as the y value of the y intercept, we know that c=15.

From there we can pick any two of the points given to us to find our a and b.

Let's use (4,17) and (8,23) becase they are whole numbers.

$17=16a+4b+15\\ 23=64a+8b+15 \implies \\ 2=16a+4b\\ 8=64a+8b \implies\\ 8=64+16b \\ 8=64+8b \implies \\ 0=8b \implies\\ b=0$

So, with b=0, we can plug it back into the first equation to get: $17=16a+4b+15 \implies\\ 2=16a \implies\\ a=\frac{1}{8}$

So our quadratic is $\frac{1}{8}x^2+15$

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3 years ago

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Which of these problem types can not be solved using the Law of Sines? SSS ASA AAS SAS

olya-2409 [2.1K]

SAS and SSS cannot be solved using the Law of Sines.

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4 years ago

Can someone help me figure this out: Factor 12y^2-27? I keep getting the steps confused.

alukav5142 [94]

Factor out the gcf first.

3(4y^2-9)

The binomial inside is a perfect square so keep factoring.

3(2y+3)(2y-3)

The pair of binomials cannot be further factored so stop there.

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3 years ago

I need help with math -4+a=15

MrMuchimi

Note the equal sign. What you do to one side, you do to the other. Isolate the a.

Add 4 to both sides

a- 4 (+4) = 15 (+4)

a = 15 + 4

a = 19

19 is your answer for a

hope this helps

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