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3 years ago

For each term below, identify the coefficient and the variable.

Mathematics

1 answer:

aliina [53]3 years ago

7 0

Answer:

A.) 6r

coefficient = 6

variable = r

B.) 20n

coeffect = 20

variable = n

C.) y

coefficient = 1

variable = y

D.) 9trx

coefficient = 9

variable = t, r, and x

Step-by-step explanation:

Coefficient = represented by a number

Variable = represented by a letter

For the third one y is the same as 1y therefore y has a coefficient of 1

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Angle A is circumscribed about circle O what is the length of AB

Nana76 [90]

Answer:

$AB \approx 4.054$

Step-by-step explanation:

The trigonometric equations associated with the figure are, respectively:

$AB = 4\cdot \cos 73^{\circ} + 3\cdot \cos \alpha$

$4\cdot \sin 73^{\circ} = 3 +3\cdot \sin \alpha$

The components with the unknown angle are cleared and used in the fundamental trigonometric relation:

$3\cdot \cos \alpha = AB - 4\cdot \cos 73^{\circ}$

$3\cdot \sin \alpha = 4\cdot \sin 73^{\circ} - 3$

$9\cdot \cos^{2}\alpha + 9\cdot \sin^{2}\alpha =(AB-4\cdot \cos 73^{\circ})^{2}+(4\cdot \sin 73^{\circ}-3)^{2}$

$9 = AB^{2}-2.339\cdot AB + 1.368 + 0.681$

The following second-order polynomial is presented below:

$AB^{2}-2.339\cdot AB -6.951 = 0$

Roots of the polynomial are described hereafter:

$AB_{1} \approx 4.054$ and $AB_{2} \approx -1.715$

Only the first root is reasonable, as length is a positive variable. The length is $AB \approx 4.054$ .

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

Which problem can be represented by the equation 49y−8=89?

sasho [114]

The first one is the answer

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3 years ago

Are the two statements equivalent?

stiks02 [169]

$Ihopethishelps$

Answer:

Yes

Step-by-step explanation:

boys to girls is 3 to 4 or 3:4

girls to boys is 4 to 3 or 4:3

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The genders are mixed up but the ratios are the SAME or EQUIVALENT.

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girls 4

$hopefullythishelpsyou$

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3 years ago

If m=5 and n = 2, find the value of 3mn

ki77a [65]

Answer:

Step-by-step explanation:

3mn=3x5x2=30

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2 years ago