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3 years ago

Help please I don't get it

Mathematics

2 answers:

goldenfox [79]3 years ago

7 0

For the first one, it asks what is half of 12 (obliviously 6), so if that is half of 12, then it would be a quarter of 24( or 1/4)

the second: if 4 is1/5 of 20 (because 20 divided by 5 is 4), then it would equal 2/5 of 10, because if 4 is equivalent to 1/5 of the number 20, then divide that by 2, to get 4=2/5 of 10. (if you are ever unsure about this, resort to decimals. lets say that you don't know if the answer to the second equation is actually 10. then do this: you know that it is asking for 2/5 of_________. turn 2/5 into a percent to equal 40%. now, what number is 4 equivalent to 40%. and if you are still unsure, just divide 40 by 4.) hope this helps

Gemiola [76]3 years ago

3 0

The first is 6 and then the second one is 5

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$10 is what % of $10 I need how it is worked out

klasskru [66]

Answer:

To work out the percentage, all you have to do is divide the first subject by the second and multiply that by 100%.

In other words, $\frac{\$10}{\$10} \cdot 100\%$

= $1 \cdot 100\%$

= $100\%$ .

Step-by-step explanation:

Hope this helped!

6 0

3 years ago

Which decimal is between 6.4 and 6.6? A.) 6.04 , B.) 6.44 , C.) 6.60 , or D.) 6.06

m_a_m_a [10]

B 6.44 because 6.4 is equal to 6.40 and in between 6.40 and 6.60 there is 6.44.

4 0

3 years ago

20. Joe is standing on top of Marina Towers looking at the Leo Burnett World Headquarters building across the Chicago River. It

Scilla [17]

The height of the Burnett building to the nearest foot be is 444 feet

<h3 /><h3 /><h3>What is angle of elevation and depression?</h3>

The angle from the horizontal to a point or the line of sight is measured with angles of elevation and depression.

when the points is high above the line of sight we have angle of elevation however when the line of sight is below the horizontal we have angle of depression

<u>Given data</u>

distance between the two buildings ( horizontal ) = 880 feet

angle of elevation = 8 degrees

angle of depression = 20 degrees

applying Trigonometry relations

for angle of elevation

tan 8 = h1 / 880

h1 = 123.676 feet

for angle of depression

tan 20 = h2 / 880

h2 = =880 * tan 20

h2 = 320.294

let the height of the Burnett building to the nearest foot be h

h = h1 + h2

h = 123.676 + 320.294

h = 443.97

h = 444 feet

Read more on angle of elevation and depression here: brainly.com/question/15580615

#SPJ1

5 0

2 years ago

NEED HELP

Zina [86]

Answer:

$\displaystyle \frac{1}{2}(x^3-2x^2-5x+6)$

Step-by-step explanation:

<u>Polynomials </u>

The polynomial whose graph is shown is of third degree because it has three real roots. The roots of a polynomial are the values of x that make the expression equal to zero. We can see it happens three times in the graph provided. The roots or zeros are

x=-2, x=1, x=3

The factored form of a polynomial whose roots $x_1, x_2, x_3$ are known is