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3 years ago

The difference between two numbers, a and b, is 21. The difference of 5 times a and two times b is 18

Mathematics

1 answer:

aleksandrvk [35]3 years ago

3 0

Answer:

No question

Step-by-step explanation:

If you want an answer, you must provide a question.

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dty

Step-by-step explanation:

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4 years ago

Select the equivalent expression.

ANEK [815]

Answer:

Step-by-step explanation:

$\frac{1}{9^{2} }$ =1/81

$9^{\frac{1}{2} }$ =3

$\frac{1^{2} }{9}$ = $\frac{1}{9}$

$9^{-2}$ =1/81

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3 years ago

Help me please I'm confused

nikdorinn [45]

Hello
1 ) 3+4sinQ=6 ( Q is theta)

4sinQ=6 -3

sinQ=3/4 conclusion : Q= Arcsin(3/4)=......calculator

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4 0

4 years ago

Secant RM intersects secant RN at point R. Find the length of RQ. If necessary, round to the hundredths place.

QveST [7]

Answer:

3 Units

Step-by-step explanation:

Secant RM intersects secant RN at point R.

The secants intersects the circle at points P and Q respectively as seen in the diagram.

To determine the length of RQ, we use the Theorem of Intersecting Secants.

Applying this on the diagram, we have:

RP x RN=RQ X RM

4(4+5)=RQ(RQ+9)

Let the length of RQ=x

$4*9=x^2+9x\\36=x^2+9x\\x^2+9x-36=0\\x^2+12x-3x-36=0\\x(x+12)-3(x+12)=0\\(x+12)(x-3)=0\\x+12=0$ x-3=0\\x=-12 or x=3\\Since x cannot be negative$\\x=|RQ|=3$

Therefore, length of RQ=3 Units

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3 years ago

Find the value of x in the diagram.<br> Pls help

iren2701 [21]

Answer:

Step-by-step explanation:

7 0

3 years ago

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