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2 years ago

Evaluate (a+b)2 for a=-3 and b--7?

Mathematics

1 answer:

Sav [38]2 years ago

3 0

Answer:

-20 or 100

i can't tell if the 2 is supposed to be a square or just multiply by two. The answer is -20 if its multiply by two and 100 if it's squared.

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Find s(4) on the graph ! Please answer this !!!

erica [24]

s(4) This means that t = 4, so you can plug in 4 for "t" in the equation

s(t) = 9t - 4

s(4) = 9(4) - 4

s(4) = 36 - 4

s(4) = 32

(4 , 32) This is the point on the graph. To graph it, each unit/square can be 4 [so go by 4's]

7 0

3 years ago

Solve. 13 - 2x1 = 9 A. X=-3 B. X=6 C. X=-3, x = 6 D. x = 3, x = 6

Vlada [557]

$\huge\text{Hey there!}$

$\large\boxed{\mathsf{13 - 2x^1 = 9}}\\\\\large\boxed{\mathsf{\rightarrow 13 - 2x = 9}}\\\\\large\boxed{\rightarrow \mathsf{-2x + 13 = 9}}\\\\\large\boxed{\textbf{SUBTRACT 13 to BOTH SIDES}}\\\\\large\boxed{\mathsf{-2x + 13 - 13 = 9 - 13}}\\\\\large\boxed{\textbf{CANCEL out: 13 - 13 because it gives you 0}}\\\large\boxed{\textbf{KEEP: 9 - 13 because it help solve for the x-value}}\\\\\large\boxed{\textbf{NEW EQUATION: -2x = 9 - 13}}\\\large\boxed{\textbf{SIMPLIFY IT!}}\\\\\large\boxed{\mathsf{-2x = -4}}$

$\large\boxed{\textbf{DIVIDE -2 to BOTH SDES}}\\\\\large\boxed{\mathsf{\dfrac{-2x}{-2} = \dfrac{-4}{-2}}}\\\\\large\boxed{\textbf{CANCEL out: } \mathbf{\dfrac{-2}{-2}} \textbf{ because it gives you 1}}\\\\\large\boxed{\textbf{KEEP: } \bf \dfrac{-4}{-2} \textbf{ because it gives you the value of x}}\\\\\large\boxed{\textbf{NEW EQUATION: } \mathbf{x= \dfrac{-4}{-2}}}\\\\\boxed{\large\textsf{SIMPLIFY IT!}}\\\\\large\boxed{\textbf{x = 2}}$

$\huge\text{Therefore, your answer is: \boxed{\mathsf{x = 2}}}\huge\checkmark$

$\large\textbf{Good luck on your assignment \& enjoy your day!}\\\\\frak{Amphitrite1040:)}$

7 0

2 years ago

Multiply (-18)(-13) its for usatestprep

Lera25 [3.4K]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

(-18)(-13) Equation/Question

Step 2

(-18)(-13) Multiply

234

Answer

234

3 0

2 years ago

Which property is (8•9)b=8(9b)

Ludmilka [50]

Answer:

Associative Property

Step-by-step explanation:

When the order of operands remains the same, all operations are identical (multiplication, or addition), and only the parentheses change places, the property involved is the associative property.

6 0

3 years ago

VashaNatasha [74]

The answer is , c. 3.4 lol

6 0

2 years ago