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wel
3 years ago
8

30 POINTS - will mark brainliest!! 4. write the following in exponential form (d only)

Mathematics
1 answer:
Paul [167]3 years ago
8 0

Answer:

ni had this yesterday hold up gotta find answer

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What is the y intercept and slope??
tiny-mole [99]

Answer:

y = .5x+30

Step-by-step explanation:

m= \frac{y2-y1}{x2-x1}

<em>hope this helps, good luck :)</em>

8 0
2 years ago
Solve these simultaneous equations:
ivolga24 [154]

Answer:

1) We have the system:

5*x - 3*y = 15

4*x + 3*y = 6

To solve this, we first need to isolate one of the variables in one of the equations, let's isolate x in the first equation:

x = 15/5 + (3/5)*y = 3 + (3/5)*y

Now we can replace this in the other equation to get:

4*( 3 + (3/5)*y) + 3*y = 6

and solve this for y.

12 + (12/5)*y  + 3*y = 6

(12/5 + 3)*y = 6 - 12 = -6

(12/5 + 15/5)*y = -6

(27/5)*y = -6

y = -6*(5/27) = 1.11

Now we can replace this in the equation:

x = 3 + (3/5)*y

To get the value of x.

x = 3 + (3/5)*1.11 = 3.67

Then the solution of this system is the point (3.67, 1.11)

2) Now we have the system:

2*x + 5*y = 26

4*x + 3*y = 24

The solution method is the same as before:

x = 26/2 - (5/2)*y = 13 - (5/2)*y

Now we replace this in the other equation:

4*( 13 - (5/2)*y) + 3*y = 24

52 - 10*y + 3*y = 24

52 - 7*y = 24

52 - 24 = 7*y

28 = 7*y

28/7 = y

4 = y

now we replace this in the equatio:

x = 13 - (5/2)*y

x = 13 - (5/2)*4 = 13 - 10 = 3

The solution of this sytem is (3, 4)

3) Now we have the system:

3*x + 3*y = 39

2*x - 3*y = -2

first we isolate x in the first equation:

x = 39/3 - 3*y/3 = 13 - y

Now we can replace this in the other equation:

2*(13 - y) - 3*y = -2

26 - 2*y - 3*y = -2

26 - 5*y = -2

26 + 2 = 5*y

28 = 5*y

28/5 = y = 5.6

Now we can replace this in the equation:

x = 13 - y

To get the x-value

x = 13 - 5.6 = 7.4

Then the solution for this system is (7.4, 5.6)

4 0
2 years ago
What is the property describe of the number sentence 6+0 equals 6
erma4kov [3.2K]
This would be the identity property of addition telling us that any number added to zero is that number (i.e. 6 added to zero is still 6)
5 0
3 years ago
5.8 cm converted into cm
agasfer [191]

Answer:

but it is already in cm

5.8 cm is 5.8 cm   but if you want mm

5.8 cm is 58 mm

Step-by-step explanation:

8 0
3 years ago
2xy-3x+4xy+8x simplified?
photoshop1234 [79]
2xy - 3x + 4xy + 8x
(Try to bring xy species together & x-type together)
2xy+4xy + 8x-3x
6xy + 5x

So, Your Answer would be 6xy + 5x

Hope this helps!
3 0
3 years ago
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