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3 years ago

HELP FASTTTTTTTTTTTTTTTTTTTTTTTTTT

Mathematics

2 answers:

SpyIntel [72]3 years ago

6 0

Answer:

whoops I answered on the wrong thing but it's d: 8 feet below sea level

Step-by-step explanation:

Gala2k [10]3 years ago

5 0

Answer:

8 feet below sea level

Step-by-step explanation:

because ur already below sea level

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The jars of paint in the art room have different amounts of paint. The green paint jar is 4/8 full. The purple paint jar is 4/6f

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4/8 is less full because it's only half compared to 4/6 which is 1.5

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3 years ago

What’s the vertex form of F(x)=x^2+2x-3

kupik [55]

Answer:

$\large\boxed{f(x)=(x+1)^2-4}$

Step-by-step explanation:

$\text{The vertex form of a quadratic equation}\ f(x)=ax^2+bx+c:\\\\f(x)=a(x-h)^2+k\\\\(h,\ k)-\text{vertex}\\=====================================$

$\bold{METHOD\ 1:}\\\\\text{convert to the perfect square}\ (a+b)^2=a^2+2ab+b^2\qquad(*)\\\\f(x)=x^2+2x-3=\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-3\\\\f(x)=(x+1)^2-4\\==============================$

$\bold{METHOD\ 2:}\\\\\text{Use the formulas:}\ h=\dfrac{-b}{2a},\ k=f(k)\\\\f(x)=x^2+2x-3\to a=1,\ b=2,\ c=-3\\\\h=\dfrac{-2}{2(1)}=\dfrac{-2}{2}=-1\\\\k=f(-1)=(-1)^2+2(-1)-3=1-2-3=-4\\\\f(x)=(x-(-1))^2-4=(x+1)^2-4$

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3 years ago

Write an expression having only two terms that is equivalent to 2x – 3. Explain how you wrote the expression and how you can che

mihalych1998 [28]

Answer:

The expression –3 + 2x is equivalent to 2x – 3. I know it is equivalent because for every value of x that is substituted in, the two expressions simplify to the same value. I took the expression and used the commutative property to not change the value.

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3 years ago

Read 2 more answers

provide a counterexample (specific values of a,b, etc. which make the statement false) for each of the following statements. Ass

ivolga24 [154]

Answer:

1. a=3, b = 2, c = 1.

2. a=2, b=3, c=4, d=6.

3. a = 9, b = 3.

Step-by-step explanation:

1. 3 | 21 is a counterexample because 3 does not divide into 2 or 1.

2. 23 | 46 is a counterexample because 2 does not divide into 3.

3. 9 | 3^2 is a counterexample because 9 does not divide into 3.

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2 years ago

In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with the 80° angle and the 60° angl

Yuri [45]

Answer:Then ask a neighbor for help

Step-by-step explanation:Hey just breath

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2 years ago