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2 years ago

What is the vertex of the graph of the function f(x) = x² + 8x - 2?

Mathematics

1 answer:

chubhunter [2.5K]2 years ago

6 0

Answer:

(4, -18)

Step-by-step explanation:

First Use this formula for the x -axis -b/2a

-8/2(1) is -4

Then plug in -4 to the equation

(-4)^2+8(-4)-2 = -18

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-24 points lost on a test how many were incorrect

Luba_88 [7]

if there were 100 questions then 76 were correct, and 24 incorrect, you can simplify and rearrange the fraction depending on how many questions there were,

5 0

4 years ago

today a boat valued at $45,000.Thebvalue is expected to decrease at a rate of 8.5% each year.What is the value of the boat expec

Stels [109]

Current value of the boat = $45000

Rate at which the value decrease = 8.5%

Value decreased after 1 year = $\frac{8.5}{100}\times45000=3825$

Hence, value becomes = $45000-3825=41175$

Value decreased after 2nd year =

$\frac{8.5}{100}\times41175=3499.875$

Hence, value becomes = $41175-3499.875=37675.125$

Value decreased after 3 year =

$\frac{8.5}{100}\times37675.125=3202.385$

Hence, value becomes = $37675.125-3202.385=34472.74$

So, value of the boat after 3 years becomes $34472.74

3 0

3 years ago

A company has recently been hiring new employees. Today the company has 36% more employees than it did a year ago. If there are

jeka57 [31]

36% of 51,000 is 18,360, so 51,000 - 18,360 = 32,640

The company had 32,640 employees last year

Hope that helps

7 0

3 years ago

Read 2 more answers

Give an example of a real number that is irrantional

dsp73

First let's see what does irrational mean.

An irrational number is any number that cannot be written as a fraction of whole numbers. The number pi and square roots of non-perfect squares are examples of irrational numbers. ... , however, is not a perfect square, and its square root, therefore, is irrational.

<h2>Now, the answer to your question. </h2>

√2 is an irrational number since it cannot be written as a ratio of two integers.

look at the picture below to see why√2 is an irrational number

<u />

Please mark me brainliest if this helped.

4 0

3 years ago

The length of the major axis of the ellipse below is 17 and the length of the red line segment is 6. How long is the blue line s

KatRina [158]

Answer:

<u>Option B. 11</u>

Step-by-step explanation:

See the attached figure

As the figure about an ellipse

So, The sum of distance between A and the foci will be equal the major axis

AB = 6 and the major axis = 17

∴ AB + AC = major axis

∴ 6 + AC = 17

∴ AC = 17 - 6 = 11

<u>So, the length of the blue line segment = 11</u>

5 0

3 years ago