3 years ago

Help me please and thank you

Mathematics

1 answer:

Paha777 [63]3 years ago

5 0

Answer:40

Step-by-step explanation:

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The equation of the tangent to the curve x^2 = 4y at the point on the curve where x=-2 is?

aleksandrvk [35]

$x^2 = 4y \Rightarrow y= \frac{x^2}{4}$
$\frac{dy}{dx} = \frac{2x}{4} = \frac{x}{2}$

(x = -2) $\frac{dy}{dx} = \frac{x}{2} = \frac{-2}{2} = -1$
(x = -2) $y= \frac{x^2}{4}= \frac{(-2)^2}{4} = 1$

$y-y_1=m(x-x_1)$
$y-1 = -1(x--2)
$
$y-1 = -1(x+2)$
$y-1 = -x-2$
$y=-x-1 = -(x+1)$

7 0

3 years ago

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How many times does the minute hand on the clock pass 6

julsineya [31]

Answer:

12 times a day.

Step-by-step explanation:

The minute hand will pass 6 on a clock from midnight to noon each day for 12 times a day.

3 0

3 years ago

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If A = -3n + 2 and B = 5n - 7, what is the value of A - B, in simplest form?

11Alexandr11 [23.1K]

Answer:

-8n + 9

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

A = -3n + 2

B = 5n - 7

A - B

Step 2: Simplify

Substitute: -3n + 2 - (5n - 7)
Distribute negative: -3n + 2 - 5n + 7
Combine like terms (n): -8n + 2 + 7
Combine like terms (Z): -8n + 9

4 0

3 years ago

Yeah ill give brain if correct

tankabanditka [31]

Answer:

72.5/8.9 = 8.15

33.2/1.2=27.67

74.3/7.9 = 9.41

35.5/3.2 = 11.09

28.1/3.7 = 7.59

Step-by-step explanation:

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2 years ago

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What is the answer to this----->7/8-5/6

dlinn [17]

7/8-5/6
Multiply until both fractions have the same common denominator.
21/24 - 20/24
Subtract the numerators but NOT the denominators.
Final Answer: 1/24

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3 years ago

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