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Triss [41]
3 years ago
9

F(-2)when f(x) = 2x^2 - 3x + 28? ^ = squared

Mathematics
2 answers:
horsena [70]3 years ago
6 0
The answer of f(-2) is 42
cricket20 [7]3 years ago
6 0

Answer:

Step-by-step explanation:

2x2^2+6+28

2^3+6+28

8+6+28

42

You might be interested in
Rate of change from X = 15 to X = 19.
vova2212 [387]

Answer:

26%

Step-by-step explanation:

Subtract the old amt from the new amt, then divide by the old amt:

19-15/15 = 4/15 = 26.6%. Rounded to the nearest tenth it would be 26%.

8 0
3 years ago
Simplify. final answer should be written in standard form (a+b)(3a-b)(2a+7b)
algol13

we have

(a+b)(3a-b)(2a+7b)

step 1

Solve

apply distributive property

(a+b)(3a-b)=3a^2-ab-3ab-b^2=3a^2-4ab-b^2

step 2

Multiply (3a^2-4ab-b^2) by (2a+7b)

6a^3+21a^2b-8a^2b-28ab^2-2ab^2-7b^3=6a^3+13a^2b-30ab^2-7b^3

answer is

<h2>6a^3+13a^2b-30ab^2-7b^3</h2>
6 0
1 year ago
avery's water bottle holds 300 milliliters. dashawn'scontainer holds 3/4 as much water. how many milliliters of water does dasha
anastassius [24]
You could make this really simple by dividing 300 by 4 to see how much 1/4 of that is and then subtracting 1/4 from 300 to see how much dashawn's water bottle holds.

300/4 =75 so 1/4 is equal to 75 mL

300-75=225mL

Dashawn's water bottle holds 225mL
6 0
3 years ago
(4/2)4 + (1 + 3)?<br><br> I really need help!
Katyanochek1 [597]

\huge\text{Hey there!}

\large\text{Just do PEMDAS}

\large\text{Parentheses}

\large\text{Exponents}

\large\text{Multiplication}

\large\text{Division}

\large\text{Addition}

\large\text{Subtraction}

\mathsf{(\dfrac{4}{2})(4) + (1+3)}

\mathsf{\dfrac{4}{2} = 2}

\mathsf{2(4) + (1 + 3)}

\mathsf{2(4) = 8}

\mathsf{8 + (1 + 3)}

\mathsf{1 + 3 = 4}

\mathsf{8 + 4 = 12}

\boxed{\boxed{\large\text{Answer: \bf \huge12 }}}\huge\checkmark

\text{Good luck on your assignment and enjoy your day! }

~\frak{Amphitrite1040:)}

6 0
3 years ago
Find the length of<br> __<br> JK<br> Round answer to nearest tenth.
PIT_PIT [208]

Answer:

Step-by-step explanation:

We would apply the law of Cosines which is expressed as

a² = b² + c² - 2abCosA

Where a,b and c are the length of each side of the triangle and A is the angle corresponding to a. Likening the expression to the given triangle, it becomes

JK² = JL² + KL² - 2(JL × KL)Cos10

JK² = 61² + 53² - 2(61 × 53)Cos10

JK² = 3721 + 2809 - 6466Cos10

JK² = 6530 - 6367.767

JK² = 162.233

Taking square root of both sides of the equation, it becomes

JK = √162.233

JK = 12.73 to the nearest tenth

6 0
3 years ago
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