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olga_2 [115]
2 years ago
13

PPPPLLLSSS HELP THIS IS WORTH SIXTY PERCENT OF MY GRADE. I DONT GET HOW SINCE IT ONLY TWO QUESTIONS BUT IT IS. PLEASE HELP

Mathematics
1 answer:
anastassius [24]2 years ago
5 0

Answer:

  • 122; 19

Step-by-step explanation:

<h3>#1</h3>
  • 15 ⋅ 6 - 2² ⋅ 8 + 4³ =
  • 15 ⋅ 6 -  4 · 8 + 64 =
  • 90 - 32 + 64 =
  • 58 + 64 =
  • 122
<h3>#2</h3>
  • 2³ + 2² ⋅ 2 + 6 - 2¹ ⋅ 2⁰ - 1 =
  • 8 + 4  · 2 + 6 - 2 · 1 - 1 =
  • 8 + 8 + 6 - 2 - 1 =
  • 22 - 2 - 1 =
  • 20 - 1 =
  • 19
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Use slopes and y-intercepts to determine if the lines 5x-5y=-2 and -x+2y=4
HACTEHA [7]

The given pair of lines are not perpendicular.

<h3>What is a line?</h3>

The line is a curve showing the shortest distance between 2 points.

5x - 5y = -2 - - - - - (1)
Transform the equation into standard form,
5x + 2 = 5y
y = 5x /5 + 2/5
y = x + 2/5


The slope of equation 1 is m_1 = 1  and intercept c = 2 / 5


Similarly
x + 2y = 4    - - - - - - - -(2)
Transform it into standard form
y = -x/2 + 4 /2
y = -x / 2 + 2


Slope of the equation 2  m_2= -1 / 2 and intercept c = 2
Slope of line 1 * slope of line 2 = 1 * -1/2 = -1/2


Since the lines are not perpendicular because the pair of lines does not satisfy the property of perpendicular lines i.e
m_1*m_2 = -1

Thus, the given pair of lines are not perpendicular.

Learn more about lines here:

brainly.com/question/2696693

#SPJ1  

6 0
1 year ago
Helphelphelpjehkejjosndidnkdndjdndjfnkdndosndjjd
Hoochie [10]
A'(1,-2)
B'(1,-3)
C'(-1,-3)
D'(-1,-2)
8 0
3 years ago
Pls help i’ll give u a brainlest
miskamm [114]

Answer:

3. V=96

4. V=108

Step-by-step explanation:

8 0
3 years ago
Solve for y.<br> 10 = 6 + y
frutty [35]
Y =4
if you replaced y with 4 the equation would be true...

it's easy math
- hope you have a nice day...
6 0
2 years ago
Read 2 more answers
Please help will mark brainly
Slav-nsk [51]

the answer is B because

2 2/3 = 8/3

8/3 x 3 = 24/3

24/3 = 8

I hope this helps

4 0
3 years ago
Read 2 more answers
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