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Andrew [12]
3 years ago
8

30 POINTS!!!!!!!!!!! ONLY ANSWER IF 100% SURE

Mathematics
2 answers:
kati45 [8]3 years ago
6 0

Answer:

the answer is C

Step-by-step explanation:

the lines lie at 2.5, 3.5

5/2= 2.5

7/2=3.5

and since they are not negative numbers it would not be answer A

LenaWriter [7]3 years ago
5 0

Answer:

C.(2.5,3.5)

Step-by-step explanation:

Graphing both equations, we can see where they cross

The x coordinate is about 2.5 and the y coordinate is about 3.5

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8 0
3 years ago
Translate this sentence into an equation. 48 is the product of Greg’s score and 3. Use the variable g to represent Greg’s score
wolverine [178]

Answer:

3*g = 48

Step-by-step explanation:

Greg's score multiplied by 3 is equal to 48 (the product).

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3 years ago
What is the numerator of the fraction equivalent to 24/120 that has a denominator of 20?
adelina 88 [10]

Answer: 4

Step-by-step explanation:

120/20= 6

24/6= 4

6 0
3 years ago
You put $800 in a savings account. The account earns 4% simple interest per year.
nalin [4]

Answer:

A. 160

B. 960

Step-by-step explanation:

The interest earned after 5 years is the balance - the initial balance: 160

The balance is 800 * (1 + .04*5): 960

4 0
3 years ago
Is the triangle obtuse, acute, equilateral or right?
Stells [14]

9514 1404 393

Answer:

  obtuse

Step-by-step explanation:

The law of cosines tells you ...

  b² = a² +c² -2ac·cos(B)

Substituting for a²+c² using the given equation, we have ...

  b² = b²·cos(B)² -2ac·cos(B)

We can subtract b² to get a quadratic in standard form for cos(B).

  b²·cos(B)² -2ac·cos(B) -b² = 0

Solving this using the quadratic formula gives ...

  \cos(B)=\dfrac{-(-2ac)\pm\sqrt{(-2ac)^2-4(b^2)(-b^2)}}{2b^2}\\\\\cos(B)=\dfrac{ac}{b^2}\pm\sqrt{\left(\dfrac{ac}{b^2}\right)^2+1}

The fraction ac/b² is always positive, so the term on the right (the square root) is always greater than 1. The value of cos(B) cannot be greater than 1, so the only viable value for cos(B) is ...

  \cos(B)=\dfrac{ac}{b^2}-\sqrt{\left(\dfrac{ac}{b^2}\right)^2+1}

The value of the radical is necessarily greater than ac/b², so cos(B) is necessarily negative. When cos(B) < 0, B > 90°. The triangle is obtuse.

4 0
3 years ago
Read 2 more answers
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