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3 years ago

Graphing question easy! HELP!

Mathematics

2 answers:

Gemiola [76]3 years ago

8 0

Answer:

The answer to your question is below

Step-by-step explanation:

First, determine the kind of lines.

The Pink line must be dotted because of the "≤" sign.

The Yellow line must be dotted because of the ">" sign.

Then, choose the shaded areas

For the pink line, we need the lower part.

For the yellow line, we need the right part

Choose the area where both areas cross.

It is the lower and right area.

See the picture below

Tpy6a [65]3 years ago

7 0

Answer:

The person above is ABSOLUTELY CORRECT!

Step-by-step explanation:

3 cheers for them! Woohoo! c:

Confirming the answer above - happy to help all! :)

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10 cm<br>12 cm find area each shaded area

Wewaii [24]

Do u have a diagram to show

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2 years ago

Y=2/7x-7 in standard form

ExtremeBDS [4]

Alright here it is:

-2/7x + y = -7

4 0

3 years ago

Factories and other industrial users account for about 23/50 of the total water usage in the United States. Which of the followi

mihalych1998 [28]

23 / 50 = 0.46

0.46 converted to a percent is 46%

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3 years ago

We gave a national verbal proficiency test that has a mean score of 500 with a standard deviation of 75. What raw score would co

charle [14.2K]

Answer:

519

Step-by-step explanation:

Let's assume that the scores for the national verbal proficiency test follow a normal distribution.

Mean score (μ) = 500

Standard deviation (σ) = 75

According to a Z-score table, the score for the 60th percentile is roughly z = 0.253

For any score "x", the z-score is given by:

$Z=\frac{X-\mu}{\sigma}$

For z = 2.53:

$0.253=\frac{X-500}{75}\\X=519$

The raw score to the 60th percentile is 519.

4 0

3 years ago

PLEASE HELP 30 POINTS AND BRANILEST

LUCKY_DIMON [66]

Answer:

Go through the explanation you should be able to solve them

Step-by-step explanation:

How do you know a difference of two square;

Let's consider the example below;

x^2 - 9 = ( x+ 3)( x-3); this is a difference of two square because 9 is a perfect square.

Let's consider another example,

2x^2 - 18

If we divide through by 2 we have:

2x^2/2 -18 /2 = x^2 - 9 ; which is a perfect square as shown above

Let's take another example;

x^6 - 64

The above expression is the same as;

(x^3)^2 -( 8)^2= (x^3 + 8) (x^3 -8); this is a difference of 2 square.

Let's take another example

a^5 - y^6 ; a^5 - (y ^3)^2

We cannot simplify a^5 as we did for y^6; hence the expression is not a perfect square

Lastly let's consider

a^4 - b^4 we can simplify it as (a^2)^2 - (b^2)^2 ; which is a perfect square because it evaluates to

(a^2 + b^2) ( a^2 - b^2)

3 0

3 years ago