3 years ago

Please help BRAINLIEST

1 answer:

7 0

A) (1,3)
B) (-4,0)
C) (-6,0)
D) (2,4)
E)cant do E

I don’t know if there are other questions because I can only see up to E.
I hope this helped though and please mark as brainliest

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A vehicle originally travelled at 30 kph. Now its speed is increased to 10 kph more than twice its original speed. What is the s

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Answer:

20kph

Step-by-step explanation:

10 * 2 = 20

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Estimate to the nearest dollar, the total cost:<br> 23.45+3.98+16.66+12.08

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Molly, Landy and Jasmine are hairdressers. Molly and Landy have 678 hairpins altogether. Landy and Jasmine have 984 hairpins alt

meriva

Answer:

219 hairpins.

Step-by-step explanation:

Let, Jasmine has $x$ hairpins.

Number of hairpins of Molly = $x \times \frac{3}{5} = \frac{3x}{5}$

As question said, Molly and Landy have 678 hairpins together.

We have calculated that Molly have $\frac{3x}{5}$ hairpins.

So, the number of hairpins of Landy = $678 - \frac{3x}{5}$

Now,

Landy and Jasmine have 984 hairpins together, so we can write from the above as,

$x+ (678-\frac{3x}{5} ) = 984$

$x - \frac{3x}{5} = 984 - 678$

$\frac{2x}{5} = 306$

$2x = 1530$

$x = 765$

It means, Jasmine has 765 hairpins.

Since Jasmine and Landy have 984 hairpins together.

So,

Number of hairpins of Landy = 984 - 765 = 219

So, Landy has 219 hairpins.

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4 years ago

What is the nature of the roots of the quadratic equationsbif the value of its discriminant is 0

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If the discriminant is 0, then you'll have exactly one root. This is a double root since the root repeats itself.

Example: y = (x-5)^2 = x^2-10x+25 has a double root at x = 5

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