3 years ago

Which choices are solutions to the following equation?

Mathematics

1 answer:

Nikolay [14]3 years ago

4 0

The answer is d sorry if I’m wrong

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Who is good at geometry that can help me?

lina2011 [118]

Answer: d. 3

Step-by-step explanation:

By the The intersecting chords theorem,

$x(x+3) = 2\times 9$

$\implies x^2+3x=18$

$\implies x^2+3x-18=0$

$\implies x^2+6x-3x-18=0$

$\implies x(x+6)-3(x+6)=0$

$\implies (x-3)(x+6)=0$

$\text{ if }x-3=0\implies x = 3$

or $\text{ if }x+6=0\implies x = -6$ ( can not possible)

Hence, x = 3

⇒ Option d is correct.

7 0

3 years ago

What is the simplified form of the expression?<br> 15 y - 4(2y + 6)

Bas_tet [7]

ANSWER:
7y - 24

EXPLANATION:

Okay, so start with distribution.

15y - 8y - 24

Then add like terms

7y - 24

And done

Hope this helped!! Pls give brainliest

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3 years ago

Sixty percent of the runners who ran the marathon finished the race. If fifteen runners finished, then how many runners ran in t

ZanzabumX [31]

Let they be x

$\\ \rm\Rrightarrow 60\%\: of\:x=15$

$\\ \rm\Rrightarrow \dfrac{3}{5}x=15$

$\\ \rm\Rrightarrow x=15\times \dfrac{5}{3}$

$\\ \rm\Rrightarrow x=5(5)$

$\\ \rm\Rrightarrow x=25$

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2 years ago

Q5. A bumper bag of icing sugar weighs 23.4 kg

VARVARA [1.3K]

Q5. 23
Q6. 2.4
Q7. 4.7
Q8. $19.20
Q9. 4.77

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3 years ago

Multiply by 10s 3,721 times 30<br><br><br> I NEED DONE ASAP PLEASE

Rasek [7]

Answer:

111630

Step-by-step explanation:

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3 years ago