3 years ago

If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?

1 answer:

8 0

Answer:

Since -8<0 then the roots α and β of the quadratic equation ax^2 + bx + c = 0 are unequal and imaginary: α and β are a pair of the complex conjugates.

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Find the value of x (URGENT/GIVING BRAINLIEST)

natta225 [31]

Answer:

B)10

Step-by-step explanation:

Because this is a right angle(indicated by the red box) the total measure should be 90°.

And based on that we say 5X +40=90

Subtract 40 from both sides to get 5x=50

And then divide both sides by 5 to get x=10

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2 years ago

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A block of concrete is 1m long, 50cm wild and 4cm thick. 1.calculate the volume of the block in cm3 .2.if 1cm has a mass of 2.7g

Nonamiya [84]

9514 1404 393

Answer:

20,000 cm³
54 kg

Step-by-step explanation:

1 m is 100 cm, so the volume is ...

V = LWH

V = (100 cm)(50 cm)(4 cm) = 20,000 cm³ . . . volume

The mass is ...

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The mass of the block is 54 kg.

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3 years ago

How to solve 89x92 using the proper steps to get to the answer

LekaFEV [45]

Answer: ${8188}$

Step-by-step explanation:

1. USING MULTIPLICATION

FIRST 2\times 9=18

SECOND 2\TIMES 8=16

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3 years ago

Please answer correctly, im giving 45 points and brainliest. You get like 25 points

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c. Roller Rink F charges 1.00 more per person than roller rink G.

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3 years ago

There was 145 children that went to the park today and 60% of the children were boys. How many of the children were girls at the

Irina18 [472]

First find 60% of 145 =

60% of 45 equals 87.

Now subtract 87 from 145.

145 - 87 = 58

So there were 58 girls.

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3 years ago

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