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Natalija [7]
3 years ago
12

Solve by substitution. 5x + 4y = -14 y = -7x - 15

Mathematics
1 answer:
ki77a [65]3 years ago
5 0

Answer:

(-2,-1)

Step-by-step explanation:

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Can someone pls help me on 4 and 5
never [62]

Answer (4):

a=ub/k because

u=ak/b   (starting equation)

ub=ak    (multiply b to both sides)

a=ub/k   (divide both sides by k)

Answer (6)

x=g+c-y because

g=x-c+y  (starting equation)

x+y=g+c (add c to both sides)

x=g+c-y  (subtract y from both sides)

5 0
3 years ago
Identify the slope of the line that passes through the given points (4, 4) and (-2, -3). Identify the slope of the line that pas
bogdanovich [222]

Answer:

m = 7/6

m = -4/9

Step-by-step explanation:

y2 - y1 / x2 - x1

The formula to find the slope.

3 0
3 years ago
Square root of 81 minus square root of negative 48 answer in a + bi form
galina1969 [7]

Answer:

9-6.92820323i Nothing else can be done.

Step-by-step explanation:

-48 is not a perfect square but 81 is a square. When you try to square -48 it comes to be 6.92820323i.

4 0
3 years ago
If ◻SLED ~ ◻PARK which of the following statements are incorrect?
san4es73 [151]

Answer:

  ◻DELS ~ ◻KARP is incorrect

Step-by-step explanation:

All of the similarity statements have corresponding letters in the same order except ...

  ◻DELS ~ ◻KARP . . . . (incorrect)

_____

The correct version would be ...

  ◻DELS ~ ◻KRAP

3 0
3 years ago
A line has a slope of 5 and passes through the point (-1,2).
Andreyy89

Answer:

Step-by-step explanation:

slope=m= 5

points=(-1,2)

<u>By point-slope form:</u>

y-y_{1}=m(x-x_{1})

<u>Substitute the values in formula:</u>

<u>y-2=5(x+1)</u>        (It is the point slope form)

Now,

<u>Slope intercept form:</u>

y-2=5x+5

y=5x+5+2

<u>y=5x+7</u>

<u />

<h3><u>If you need to ask any questions, please let me know.</u></h3>
5 0
3 years ago
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