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lys-0071 [83]
3 years ago
13

Plsss someone help i need help with this

Mathematics
2 answers:
serious [3.7K]3 years ago
6 0
For one it’s 32/5
2. 32
Wewaii [24]3 years ago
5 0

Answer:

  1. -3/5 + 7 = 32/5 or 6.4
  2. 51 + -19= 32
  3. -321 + -85= -406

Step-by-step explanation:

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What is the equation of the line that passes through the point (-1, -3) and has a slope of -5?
spin [16.1K]

Answer:

<h2>A) y = -5x - 8</h2>

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point on a line

We have the slope m = -5, and the point (-1, -3). Substitute:

y-(-3)=-5(x-(-1))\\\\y+3=-5(x+1)

Convert to the slope-intercept form (y = mx + b):

y+3=-5(x+1)          <em>use the distributive property</em>

y+3=-5x-5            <em>subtract 3 from both sides</em>

y=-5x-8

7 0
3 years ago
The bill at a restaurant is $28.48, not including tax. A family wants to leave an 18% tip. How much money
Nezavi [6.7K]

Answer:

5.13

Step-by-step explanation:

5 0
3 years ago
We want to find the maximum and minimum values of f(x, y) = 10x2 + 11y on the disk D: x2 + y2 &lt; 1.
dolphi86 [110]

If you're just focusing on the boundary, it's the circle x^2+y^2=1. Parameterize it by taking x=\cos t and y=\sin t, with 0\le t\le2\pi. Then f(x,y) reduces to a univariate function g(t):

f(x,y)=10x^2+11y\iff g(t)=f(\cos t,\sin t)=10\cos^2t+11\sin t

Then you can find any extrema on the boundary by checking the critical points of g.

8 0
3 years ago
X=3 y=5 z=-2<br> Please help me with number 10
zlopas [31]

Answer:

26

Step-by-step explanation:

2*3*5-3(-2)+5(-2)

6*5+6-10

30+6-10

36-10

26

3 0
3 years ago
Read 2 more answers
Can someone give me the correct solution to the inequality of 3x&lt;-21?
Slav-nsk [51]

Answer:

x < -7

Step-by-step explanation:

3x < -21

<u>Step 1:  Divide both sides by 3</u>

3x < -21

3x / 3 < -21 / 3

x < -7

Answer: x < -7

8 0
3 years ago
Read 2 more answers
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