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4 years ago

- 9x = 81 plsssss help me will cash app put it below the answer !

Mathematics

1 answer:

Firdavs [7]4 years ago

5 0

Divide both sides of the equation by the same factor. -9/-9 = 81/-9. simplify x= -9 and the answer is x= -9

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What is 3 1/2 plzzz help me

inessss [21]

Answer:

7/2 or 3.5 whichever you need

Step-by-step explanation:

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3 years ago

Estimate the square root of 20 to the nearest integer and to the nearest tenth

KengaRu [80]

√20 = 4.47213

√20 = 4 (nearest integer)

√20 = 4.5 (nearest tenth)

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4 years ago

Read 2 more answers

Two pennies, a nickel, and a dime are placed in a cup. You draw a first coin and then a second coin.

QveST [7]

Answer:

a) {P1P2, P1N, P1D,P2P1, P2N,P2D,NP1,NP2,ND,DP1,DP2,DN}

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Step-by-step explanation:

Let us call pennies by P1 and P2.

a)There are 12 possible outcomes as it is written above.

b)In order to have 11 cents we need a penny and the dime. There are 4 such possibilities (events). The total number is 12. So the probability is 4/12.

4 0

3 years ago

PLZ help with this it should be super easy plz and thx

kherson [118]

Answer:

-m²+81

Step-by-step explanation:

Hello There!

9x-m=-9m

9x9=81

mx-m=-m²

9xm=9m

9m-9m=0

we would be left with

-m²+81

5 0

3 years ago

Read 2 more answers

A mass oscillating up and down on the bottom of a spring can be modeled as harmonic motion. if they weight is displaced a maximu

snow_tiger [21]

9514 1404 393

Answer:

1.63 cm (across the centerline from release)

Step-by-step explanation:

If we assume time starts counting when we release the weight from its fully-extended downward position, then the position at 1.15 seconds can be found from ...

h(t) = -7cos(2πt/4)

h(1.15) = -7cos(π·1.15/2) = -7(-0.233445) ≈ 1.63412 . . . cm

That is, 1.15 seconds after the weight is released from below the resting position, it will be 1.63 cm above the resting position.

If it is released from above the resting position, it will be 1.63 cm below the resting position at t=1.15 seconds.

6 0

3 years ago