2 years ago

Consider the quadratic function f(x) = ax? + bx + 22. The equation of the axis of symmetry is

Mathematics

1 answer:

Triss [41]2 years ago

5 0

Answer:

nnnnnnnjj

Step-by-step explanation:

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Black_prince [1.1K]

#8 is 10, all other answers are correct

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2 years ago

How many feet would you cover if you walked for 30 minutes?

serg [7]

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Step-by-step explanation:

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A line with a slope of -2 passes thru the point (4,7)

Tpy6a [65]

Answer:

y - 7 = -2(x - 4)

Step-by-step explanation:

We are asked to write the equation of a line in point slope form

Step 1 : find slope

We are given the slope to be -2

Slope m = -2

Step 2: substitute m into point slope form

y - y_1 = m( x - x_1)

y - y_1 = -2 ( x - x _1)

Step 3: substitute the point into the equation

y - y_1 = -2( x - x _1)

( 4 , 7)

x_1 = 4

y_1 = 7

y - 7 = -2( x - 4)

We don't need to open the bracket because we are asked to write the equation in a point slope form

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2 years ago

B) Factorise fully<br> 8x + 12x

densk [106]

Answer:

20x simplified

4x(2+3) factored

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2 years ago

Mr. West estimated a mass to be 265g, but upon carefully measuring it, found the actual mass to be 240g. What was the percent er

spayn [35]

Answer:

<h3>The answer is 10.42 %</h3>

Step-by-step explanation:

The percentage error of a certain measurement can be found by using the formula

$P(\%) = \frac{error}{actual \: \: number} \times 100\% \\$

From the question

actual mass = 240 g

error = 265 - 240 = 25

So we have

$p(\%) = \frac{25}{240} \times 100 \\ = 10.41666666...$

We have the final answer as

Hope this helps you

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2 years ago