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3 years ago

-5=-10+ I don’t understand this can someone please help me with this?? Thank you

Mathematics

1 answer:

likoan [24]3 years ago

8 0

Answer:

im pretty sure its 5+

Step-by-step explanation:

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What are some relationships between sets of numbers??????

Olin [163]

Some sets of numbers are rational and irrational numbers.
Rational numbers are numbers you can make by dividing one integer by another.
Irrational numbers are numbers that can be written as a simple fraction.

4 0

4 years ago

A triangle has two sides measuring 16 and 21. The included angle is 116°. What is the length of the side opposite the 116° angle

Crank

Answer:

Length of the side opposite to angle $116^{\circ}$ is 31.49

Step-by-step explanation:

Included angle can be defined as the angle in between two sides of the triangle.

So angle $116^{\circ}$ is in between sides 16 and 21.

Refer to the attachment for triangle diagram.

To find the length of opposite side, use cosine rule as follows

$a^{2}=b^{2}+c^{2}-2\:b\:c\cos\left(A\right)$

From the diagram, $b = 21,c = 16,\angle A=116^{\circ}$

Substituting the values in the formula,

$a^{2}=\left(21\right)^{2}+\left(16\right)^{2}-2\left(21\right)\left(16\right)\cos\left(116\right)$

Simplifying,

$a^{2}=441+256-225792\left(-0.44\right)$

$a^{2}=991.59$

Taking square root on both sides,

$\sqrt{a^{2}}=\sqrt{991.59}$

$a=31.49$

Therefore length of third side is 31.49

7 0

3 years ago

If the diameter of a circle is 46 centimeters long, how long is the radius of the circle?

podryga [215]

Answer:

r = 23

Step-by-step explanation:

Using the formula

d = 2r

Solving for r

r = d / 2 = 46 / 2 = 23

3 0

2 years ago

What is a formula for the nth term of the given sequence?<br> 20,50, 125...

loris [4]

Answer:

a(n) = 20*2.5^(n - 1)

Step-by-step explanation:

Note that 50 is 2.5 times 20, and that 125 is 2.5 times 50. Thus the common factor is 2.5. The formula for the nth term is

a(n) = a(1)*r^(n - 1) => a(n) = 20*2.5^(n - 1)

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3 years ago

What is the mathematical definition of term?

zheka24 [161]

A single number or variable, or numbers and variables multiplied together.

4 0

3 years ago