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3 years ago

8

What does a radius of a sphere join?

1 answer:

Reika [66]3 years ago

8 0

<span>The radius of a sphere join refers to the (D) the center and a point on the sphere. A radius is the distance of the center point to any sides of the circle or sphere. The point on the sphere can be anywhere. The center and a point on the sphere forms a sphere join.</span>

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For her cell phone plan, Jane pays $30 per month plus $0.05 per text. She wants to keep her bill under $60 per month. What is th

Varvara68 [4.7K]

600 texts. To check work 600*0.05=30, she is already paying 30, 30+30=60

5 0

3 years ago

How do I factor 14x^2-7xy-147y^2

Viefleur [7K]

STEP 1

Equation at the end of step

((14 • (x2)) - 7xy) - (3•72y2)

Equation at the end of step 2

((2•7x2) - 7xy) - (3•72y2)

STEP 3

STEP 4

Pulling out like terms

4.1 Pull out like factors :

14x2 - 7xy - 147y2 = 7 • (2x2 - xy - 21y2)

Trying to factor a multi variable polynomial :

4.2 Factoring 2x2 - xy - 21y2

Try to factor this multi-variable trinomial using trial and error

Found a factorization : (2x - 7y)•(x + 3y)

6 0

3 years ago

David is thinking of two numbers, x and y. He says that if he adds them together, the sum is negative. Select all the correct ex

ankoles [38]

Answer: A, B and D.

Step-by-step explanation:

We have two numbers, x and y.

And we know that:

x + y is a negative number.

Then it can happen if:

1) x and y are negative numbers.

remember that when we add two negative numbers, for example -2 and -3 we have:

-2 + (-3) = -5

The sum of two negative numbers is always negative.

2) we have a positive and a negative number, but the absolute value of the negative number is larger than the absolute value of the positive.

For example, if we have -5 and 3.

The positive number is 3 and the negative is -5

and I-5I > I3I

Then when we add those:

-5 + 3 = -2

The result is also a negative number.

Then the correct options are:

A. Both numbers are negative.

B. x is negative, and |x| > |y|. (here says that the negative number is larger in absolute value than the other)

D. y is negative, and |x| < |y|. (this is similar as above, but in this case the negative number is y)

8 0

3 years ago

Given csc(A) = 65/16 and that angle A is in Quadrant I, find the exact value of sec A in simplest radical form using a rational

charle [14.2K]

Answer:

$secA = \frac{65}{63}$

Step-by-step explanation:

$cosec A = \frac{65}{16}\\\\sin A = \frac{1}{cosecA} = \frac{16}{65}\\\\cos^2 A = 1 - sin^2 A$

$= 1 - (\frac{16}{65})^2\\\\=\frac{4225-256}{4225}\\\\=\frac{3969}{4225}\\$

$cos A = \sqrt{\frac{3696}{4225}} = \frac{63}{65}$

$secA = \frac{1}{cosA} = \frac{65}{63}$

7 0

3 years ago

Derrick compared two lengths of rope using an inequality. د. أزرگ What does the inequality show? O 2 The number 53 is less than

Alecsey [184]

Answer:

A)-The number 5 2/3 is less than 6 1/5

Step-by-step explanation:

I got it right :D

3 0

3 years ago

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