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krok68 [10]
3 years ago
14

1. The distance in feet that Karina swims in a race is represented by 4d-4, where d is the distance for each lap. What is an exp

ression equivalent to 4d-4?
2. Use the Associative Property to write an expression equivalent to (w+9)+3.

Srry for being a pain. Thanks!

Mathematics
1 answer:
MatroZZZ [7]3 years ago
3 0
Did you get the answer?
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4 0
3 years ago
Determine the number of units of solution 2 required to obtain the desire percent alcohol concentration of the final solution. T
KiRa [710]

Answer:

0.66 gal.

Step-by-step explanation:

The following should apply:

C1 * V1 = C2 * V2

we have that C1 is 0.1, that C2 is 0.3 and that V1 is equal to 2 gal

replacing the values we have that:

0.1 * 2 = 0.3 * V2

reorganizing the equation we have:

V2 = 0.1 * 2 / 0.3 solving this remains 0.66.

It means that the amount of solution 2 is 0.66 gal.

8 0
4 years ago
Can someone do 15?!?!?
andrew-mc [135]

<u>Given</u>:

The given triangle is a right triangle.

The length of the hypotenuse is 31 units.

The length of the leg is 23 units.

One of the angle is x.

We need to determine the value of x.

<u>Value of x:</u>

The value of x can be determined using the trigonometric ratio.

Thus, we have;

sin \ \theta=\frac{opp}{hyp}

Substituting \theta=x, the side opposite to the angle x measures 23 units and the hypotenuse is 31.

Thus, we have;

sin \ x=\frac{23}{31}

Dividing, we get;

sin \ x=0.74

Taking sin ^{-1} on both sides of the equation, we get;

x=sin^{-1}(0.74)

x=47.7

Rounding off to the nearest whole integer, we get;

x=48

Thus, the value of x is 48°

Hence, Option c is the correct answer.

5 0
3 years ago
Give s reason to divide 15 into 3 equal groups
liubo4ka [24]
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7 0
3 years ago
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NikAS [45]

Answer:

the answer is 32 cups of water  and 12 cups drink mix.

Step-by-step explanation:

   

8 0
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