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3 years ago

I need help I will give you 15 points

Mathematics

2 answers:

soldi70 [24.7K]3 years ago

6 0

Answer:

Middle answer is right

Step-by-step explanation:

The first answer is obliviously wrong so therefore it is the last two options

-(x+1)^2

= -(x^2+2x+1)

= -x^2-2x-1-3 (add the -3)

= x^2-2x-4

y intercept make x=0 therefore y=-4

AOS is x= -b/2a

x=2/2 which is 1

therefore it isthe middle answer

azamat3 years ago

3 0

It’s the first one because the parabola is open

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Step-by-step explanation:

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A bag contains pennies, nickels, nickels, and nickels. There are 50 coins in total. Of the coins, 14% are pennies and 34% are di

Alborosie

answer:

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Step-by-step explanation:

total number of coins = 50

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8 0

2 years ago

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DENIUS [597]

Answer:

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2 years ago

Can someone please help me?

Lostsunrise [7]

Answer:

The angle between the two sides of the right triangle is aproximately 31.003º.

Step-by-step explanation:

From image attached on question we infer that we need to find the angle between sides of lengths 6 (adjacent leg) and 7 (hypotenuse) in the right triangle. The angle can be found by means of this trigonometric ratio:

$\cos \alpha = \frac{6}{7}$

$\alpha = \cos^{-1} \frac{6}{7}$

$\alpha \approx 31.003^{\circ}$

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3 years ago