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pashok25 [27]
3 years ago
6

Evaluate -a - 12a^2 for a = -1 a. -13 b. 13 c.-11

Mathematics
2 answers:
Gelneren [198K]3 years ago
8 0

C

substitute a = - 1 into the expression

- (- 1) - 12(- 1)² = 1 - (12 × 1 ) = 1 - 12 = - 11 → C


aleksandr82 [10.1K]3 years ago
7 0

c because PEMDAS start with the exponents so (-1)^2 =1 times -12=-12 and --1=1 so we end up with 1-12 or -11 which is C

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Find the y and the x intercepts of the graph of the equation of y=3x+1
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Answer:

x-intercept ⇨ -1/3

y-intercept ⇨ 1

Step-by-step explanation:

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y=3x+1\\0=3x+1\\3x+1=0\\

Move 1 to subtract the another side.

3x=-1

Then move 3 to divide -1, leaving only x as a subject since we want to find the x-intercept.

x=-\frac{1}{3} #

⟺ Finding the y-intercept, substitute x = 0

y=3x+1\\y=3(0)+1\\y=0+1

y=1 #

Tips:

Here's the tips about finding the intercepts of the graph.

⟺ For x-intercept, It's like solving an equation to find the x-term.

⟺ For y-intercept, It's like using the constant to answer.

As for y = mx+b where m = slope and b = y-intercept.

For a linear function, It's not necessary to substitute x = 0 just to find y-intercept as we can answer the constant as our y-intercept.

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3 years ago
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Answer:

A) JK and AB =

[tex] \boxed{( \theta) = \f{12}{( \theta)} } So, =》 \dfrac{10}{5} = \dfrac{1}{ \( \theta) } =》 \( \theta) = \dfrac{5}{2}[/tex]

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----------

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3 years ago
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Answer:

2.

i) (c)

ii) (d)

iii) (b)

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Step-by-step explanation:

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