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nexus9112 [7]
2 years ago
13

What is the value of x in the proportion ​

Mathematics
1 answer:
siniylev [52]2 years ago
4 0

Answer:

  5 2/5

Step-by-step explanation:

Multiply by (3 3/5)x/(1 1/2):

  x = (2 1/4)(3 3/5)/(1 1/2) = (9/4)(18/5)(2/3) =27/5

  x = 5 2/5

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State the value of the discriminant for the equation,<br> 3x^2 + 7x + 3 = 0
Irina-Kira [14]

Answer: 13

Step-by-step explanation:

If you remember the quadratic equation formula;

x=\frac{-b\frac{+}{}\sqrt{b^2-4ac}  }{2a}

You can easily extract what is under the root to find the discriminant.

b^2-4ac=?\\

a = 3

b = 7

c = 3

(7)^2-4(3)(3)\\49-36=13

7 0
3 years ago
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Levart [38]

Answer:

C and E

Step-by-step explanation:

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3 0
3 years ago
I will mark you brainlist!
Alborosie

Answer:

B. 4, Heads

4, Tails

5, Heads

5, Tails

6, Heads

6, Tails

Step-by-step explanation:

Given that the cube is labelled 1 to 6 and the coin has a head or a tail, the only outcome when the number cube lands on a number greater than 3 means that the cube lands on 4 or 5 or 6.

On the other hand, the coin may give a head or a tail.

In light of this, the possible answers are;

4, Heads

4, Tails

5, Heads

5, Tails

6, Heads

6, Tails

Hence option B is right

7 0
3 years ago
The function f(x) = -0.25x + 5 models the height of a candle x seconds after it is lit. Explain the
lbvjy [14]

Answer:

The y-intercept is the height of the candle before it was lit

Step-by-step explanation:

The y-intercept is at 0 on the x-axis meaning that not time has passed, so the candle is at its original height

4 0
3 years ago
Which best completes the following sentence?<br> Triangles are congruent if they have the same
Anni [7]

Answer:

Triangles are congruent if they have the same sides.

Step-by-step explanation:

Triangles are congruent when all corresponding sides and interior angles are congruent.

7 0
3 years ago
Read 2 more answers
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