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Phoenix [80]
2 years ago
13

Find the slope and y-intercept of each linear equation 30 points

Mathematics
1 answer:
uranmaximum [27]2 years ago
6 0

Step-by-step explanation:

<u>The slope-intercept form:</u>

  • y = mx + b, where m- slope, b- y-intercept

<u>Given lines:</u>

1)

  • y = - 2x + 7
  • m = - 2, b = 7

2)

  • y = 6x + 11
  • m = 6, b = 11

3)

  • y = -2.5x + 3.2
  • m = - 2.5, b = 3.2

4)

  • y = 1/4x - 2/7
  • m = 1/4, b = - 2/7

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Answer:

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Step-by-step explanation:

It's hard to tell where the point is exactly

3 0
3 years ago
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The area of triangle ABC is _____.
Marizza181 [45]
I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
 
SEE ATTACHED IMAGE.
 
Using Heron's Formula we can find the area of the triangle.
 A = root (s (s-a) * (s-b) * (s-c))
 s = (a + b + c) / 2
 Where,
 s: semi-perimeter
 a, b, c: sides of the triangle
 Substituting values:
 s = (15 + 16 + 20) / 2
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5 0
3 years ago
What is the solution for the =.
liq [111]

Answer:

solution for n is \frac{-13}{4}

Step-by-step explanation:

Given an equation containing one variable n.

The equation is as follows:

\frac{-5}{2} =\frac{3}{4} +n

To solve for n we can subtract 3/4 from both the sides

The result is

\frac{-5}{2} -\frac{3}{4} =n\\Take LCD as 4\\\\frac{-10-3}{4} =n

Verify:

Substitute the answer in the given equation.

\frac{-5}{2} =\frac{3}{4} -(\frac{13}{4} )

Both sides equal thus proving our correctness of answer.


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3 years ago
Big ideas math cumulative practice
worty [1.4K]
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3 years ago
URGENT will give brainliest!!! Element X decays radioactively with a half life of 5 minutes. If there are 540 grams of Element X
yKpoI14uk [10]

Answer:

7.2 minutes

Step-by-step explanation:

The formula to find the time using the radioactive decay rate formula is given as:

t = t½ × In(Nt/No)/-In2

Where

t½ = half life = 6 minutes

No = Initial Amount = 260 grams

Nt = Amount after decay

= 113 grams

Hence:

t = 6 × In(113/260)/-In2

t = 7.2131331036796 minutes

Approximately = 7.2 minutes

7 0
2 years ago
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