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3 years ago

X2 +2x -15 factories using the ac method

Mathematics

1 answer:

jeka57 [31]3 years ago

3 0

Answer:

Step-by-step explanation:

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A triangle has side lengths measuring 20 cm, 5 cm, and n cm. Which describes the possible values of n? 5 < n < 15 5 < n

ehidna [41]

Answer:

15 < n < 25

Step-by-step explanation:

According to the triangle inequality theorem, any two sides lengths' sum should be greater than the third side. This also implies that to find the possible length of the 3rd side given other two sides (let two given sides be x and y), we can say that the 3rd side length will be between x+y and x-y.

Hence, we can say that n should be between 20+5 and 20-5.

So, 20 - 5 < n < 20 + 5, which is

15 < n < 25

This is the correct answer.

5 0

3 years ago

Read 2 more answers

Let

frutty [35]

Here is the answer in comma-separated list.

(5, 10) , (10,15), (15, 20) (20, 25) (25, 300 (30, 35)

You need 5 dimes while having 10 or 25

4 0

3 years ago

Write an addition that helps you solve 12-4

Tamiku [17]

8+4 = 12. Therefore, 12 - 4 must equal 8 ,right?
And if 4+4+4 (4x3) =12, and you take away 1 group of 4, you will have
two groups of four right? and two groups of four (4x2) must equal 8 ,right?

From One Smartie to Another- BubbleSmartie11

3 0

3 years ago

marin [14]

Answer:

The equivalent expression is cosec2x

option B

Step-by-step explanation:

The correct question is ;

which expression is equivalent to sec2xcot2x?

Solution

Mathematically;

sec2x = 1/cos2x

cot2x = 1/tan2x

so we have

1/cos2x * 1/tan2x

recall that the product of tan and cos is sin

from the formula;

tan = sin/cos

so we have our final answer as;

1/sin2x

Kindly recall that ;

sin = 1/cosec

so therefore;

1/sin2x = csc2x

7 0

3 years ago

What is this answer

olga55 [171]

Hello!

I've altered the diagram and attached it below. I've added a circle; circles measure 360°. Segment CD is half the measure of the circle, thus it measures 180°. That means that if you add all the angle measures up, they have to equal 180°. Let's make an equation.

180 = (4x + 8) + 34 + (76 - x)

Now we can solve algebraically for x.

180 = 4x + 8 + 34 + 76 - x
180 = 3x + 118
62 = 3x
20.67 ≈ x

Answer:
x ≈ 20.67

4 0

3 years ago