3 years ago

Please help with all of them

Mathematics

2 answers:

Kaylis [27]3 years ago

7 0

Answer:

1 - D

2 - D

3 - B

tester [92]3 years ago

3 0

Answer:

D. Quadrant 4

D. 1,2

B. A and B

Step-by-step explanation:

brainlest pls

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Why am I so bad at math!!! Please help me. It would be much appreciated. ☻☺

Gnesinka [82]

X + 2y = -6
2y = -x - 6
y = (-x - 6)/2

answer is D. Last one

y = (-x - 6) / 2

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4 years ago

Factor the expression 11x + 55

Sphinxa [80]

The answer is 11(x+5)

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3 years ago

Deirdre is factoring the polynomial x^2+2x-24. Which combination can she use to replace the middle term 2x?

Ber [7]

X^2+2x-24
Carry over the "^2" to the "2x"
So now it will be 2x^2-24
So 2 times 2 "2" times because of the "^2" (which means multiply)
So the problem will now be 2x^2-24
From there it will be 4x divided by 24
Your answer will be x=6✔️

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3 years ago

What is the equation of a hyperbola with a = 5 and c = 15? Assume that the transverse axis is horizontal.

gogolik [260]

Answer:

$\frac{x^2}{25} -\frac{y^2}{200} =1$

Step-by-step explanation:

Recall that the equation of hyperbola centered at the origin with transverse horizontal axis has the general form:

$\frac{x^2}{a^2} -\frac{y^2}{b^2} =1\\and\,\,\,\, with\\c=\sqrt{a^2+b^2}$

since we know that a = 5 ,and c = 15,we can solve for b:

$15=\sqrt{5^2+b^2} \\15^2=25+b^2\\b^2=200\\$

then the equation of the hyperbola becomes:

$\frac{x^2}{5^2} -\frac{y^2}{200} =1\\\frac{x^2}{25} -\frac{y^2}{200} =1$

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3 years ago

Ronnie marks up items at his store by 45%. He buys kazoo's for $1.30. How much will he sell them for when he applies the mark up

Simora [160]

Answer:

1.90

Step-by-step explanation:

I hope I helped you!

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3 years ago