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2 years ago

Solve the inequality. Then, graph the solution 15x ≥ −60

Mathematics

1 answer:

chubhunter [2.5K]2 years ago

7 0

Answer:

A closed circle on -4, going to the right.

Step-by-step explanation:

15x ≥ −60

/15 /15

x ≥ -4

This is a closed circle on -4, going to the right.

Hope that helps!

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9x^2-y^2 in factored form

Keith_Richards [23]

Answer:

$(3a-y)(3a+y)$

Step-by-step explanation:

This is a difference of squares that has the form and factors to:

$a^2x^2-b^2 = (ax-b)(ax+b)$

Here take the square root of each term for the factors.

$9a^2-y^2 = (3a-y)(3a+y)$

8 0

3 years ago

If the radius of the circle is 14 meters, find the length of arc RS (brainliest given)

Travka [436]

Answer:

s=14(116)

s = 1624

(This is the arc length for RS)

The line T to R cuts the circle in half. Half of a circle in degrees is 360/2. Which is 180.

Now we take the known angle and subtract it from 180 to get the unknown angle which is the angle of RS.

[180-64 = 116]

Arc length = radius * theta

Arc length = 14 * 116 = 1624

[FOR TS BELOW]

s=r(theta)

s= 14(64)

s = 896 (arc length for TS)

5 0

2 years ago

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2. In how many ways can you form 3-letter "words" from the letters of "Adelphi" so that the first and last letters are vowels? N

kondaur [170]

Answer:

The total number of ways are 30.

Step-by-step explanation:

Consider the provided information.

We need to write 3-letter "words" from the letters of "Adelphi" so that the first and last letters are vowels.

The number of letters in "Adelphi" = 7

The number of vowels are = 3

It is given that the first and last letters are vowels.

For first letter we have 3 choices, and for the last letter we have 2 choices as repetition is not allowed.

If we have selected first and last letter that means now we have 5 letters for the middle letter. (7-2=5)

So the number of possible choices for the 2nd letter is 5.

Hence, the total number of ways are: 3×5×2 = 30 ways

8 0

4 years ago

Help please I will mark Brainly If you could please show your work

kondaur [170]

Answer:

tawag sa manok na pansabong

5 0

3 years ago

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4. Solve the equation using the quadratic formula.

Vikentia [17]

Answer:

A. x = -2, x = 1.25

Step-by-step explanation:

Use the quadratic formula

x = $\frac{-b+\sqrt{b^{2}-4ac } }{2a}$

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

4x² + 3x - 10 = 0

a = 4

b = 3

c = - 10

x = $\frac{-3+\sqrt{3^{2}-4x4(-10) } }{2x4}$

Simplify

Evaluate the exponent

x = $\frac{-3+\sqrt{9-4x4(-10)} }{2x4}$

Multiply the numbers

x = $\frac{-3+\sqrt{9+160} }{2x4}$

Add the numbers

x = $\frac{-3+\sqrt{169} }{2x4}$

Evaluate the square root

x = $\frac{-3+13}{2x4}$

Multiply the numbers

x = $\frac{-3+13}{8}$

Separate the equations

To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.

x = $\frac{-3+13}{8}$

x = $\frac{-3-13}{8}$

Solve

Rearrange and isolate the variable to find each solution

x = - 2

x = 1.25

6 0

3 years ago

Read 2 more answers

Solve the inequality.​ Then, graph the solution 15x ≥ −60

Solve the inequality. Then, graph the solution 15x ≥ −60