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3 years ago

Can anybody answer this if you do I will give you brainliest, 5stars, and a thank you

Mathematics

1 answer:

Tema [17]3 years ago

8 0

Answer:

nope cant even think not meh

Step-by-step explanation:

sorry

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Helpppppppppppp plzzzzzzzzzzzz!

r-ruslan [8.4K]

For the first one:
2x + 2 = 3x - 52
2x + 2 + 52 = 3x - 52 + 52
2x + 54 = 3x
2x - 2x + 54 = 3x -2x
54 = x
For the second:
124 + 2x + 4 = 180
124 + 4 + 2x = 180
128 + 2x = 180
128 - 128 + 2x = 180 - 128
2x = 52
2x/2 = 52/2
x = 26

6 0

4 years ago

Find the missing value if f(x) = -2.<br> x=______<br> I NEED HELP ASAP!!

Stella [2.4K]

Answer:

the answer should be positive 2 I could be wrong

4 0

3 years ago

Read 2 more answers

^^^^^^^^^^^^^^^^^^^^

Sladkaya [172]

<h2>Hello!</h2>

The answer is:

The correct option is:

A) $74.55

To calculate how much does Sonya pay for the four pairs altogether, we need to calculate the original price after the 50% discount and the taxes.

Calculating we have:

$PriceAfterDiscount=35*50(percent)=35*\frac{50}{100}\\\\35*\frac{50}{100}=35*0.5=17.5$

We have that before the tax, the price of the shoes was $17.5, then, calculating the price after the taxes, we have:

$AfterTaxes=17.5(1+6.5(percent))=17.5(1+\frac{6.5(percent)}{100})\\\\AfterTaxes=17.5(1+\frac{6.5(percent)}{100})=17.5*(1+0.065)\\\\AfterTaxes=17.5*(1+0.065)=17.5*1.065=18.637$

So, we have that the price after discount and the taxes is $18.637 per each pair of shoes.

Hence, the price for the four pairs of shoes will be:

$TotalPrice=4*18.637=74.548=74.55$

Have a nice day!

8 0

3 years ago

Which statement is true? Question 12 options: A) |–3| = 3 and –|–4| = –4 B) |–3| = 3 and |–4| = –4 C) |–3| = 3 and –|4| = 4 D) –

alexandr402 [8]

A) |–3| = 3 and –|–4| = –4

It’s the only one that makes sense.

Hope that helps!

7 0

3 years ago

Given: cosθ= -4/5 , sin x = -12/13 , θ is in the third quadrant, and x is in the fourth quadrant; evaluate tan 1/2 θ

mrs_skeptik [129]

Answer:

Step-by-step explanation:

If you're looking for what the half angle of the tangent of theta is, I'm a bit confused as to why you think the angle in the 4th quadrant, x, is relevant. But maybe you don't know it isn't and it's a "trick" to throw you off. Hmm...

Anyways, the half angle identity for tangent is

$tan(\frac{\theta}{2})=\frac{sin\theta}{1+cos\theta}$

There are actually 3 identities for the tangent of a half angle, but this one works just as well as either of the others do, so I'm going with this one.

If theta is in QIII, the value of -4 goes along the x axis and the hypotenuse is 5. That makes the missing side, by Pythagorean's Theorem, -3. Filling in our formula:

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{1+(-\frac{4}{5}) }$ which simplifies a bit to

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{\frac{5}{5} -\frac{4}{5} }$ and a bit more to

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{\frac{1}{5} }$

Bring up the lower fraction and flip it to divide to get

$tan(\frac{\theta}{2})=-\frac{3}{5}*\frac{5}{1}$ which of course simplifies to

-3. Choice A.

6 0

4 years ago