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Anna007 [38]
3 years ago
13

Find both X and Y intercepts of the equation #1- 4x+y=5 #2- x-y=1 #3- x+4y=8

Mathematics
2 answers:
Fudgin [204]3 years ago
8 0

Answer:

Water is a polar molecule because one area is ________________ and another area is ______________________.

Step-by-step explanation:

kaheart [24]3 years ago
5 0

Answer:

1. y=5       x=1.25

2. y=-1      x=1

3. y=2      x=8

Step-by-step explanation:

put it in to a graphing calculator.

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If the distance between the wall and the bottom of the plywood was three feet, what was the distance between the floor and the t
Mkey [24]

Answer:

4

Step-by-step explanation:

square root of 16 is 4

Just like the relationship of multiplication and division, square roots and exponents have similar relationship.

Example,

2^2=4

√4 = 2

5 0
2 years ago
Read 2 more answers
The base of a triangle is 7 inches more than 4 times the height. If the area of the triangle is 93 square inches, find the base
Galina-37 [17]

Answer:

Step-by-step explanation:

Let the height = h

Let the base = 4h + 7

Area of a triangle = 1/2 * b * h

Area = 93 square inches

1/2 * (4h + 7)* h = 93            Multiply both sides by 2

(4h + 7) * h = 93*2

(4h + 7)*h = 186                    Remove the brackets

4h^2 + 7h = 186                   Subtract 186 from both sides.

4h^2 + 7h - 186 = 0

Use the quadratic formula to solve

a = 4

b = 7

c = - 186

x1 = (-7 + sqrt(7^2 - 4*4*(-186) ) /2*4

x1 = (-7 + sqrt(49 - 16*(-186)) / 8

x1 = (-7 + sqrt(49 + 2976)) / 8

x1 = (-7 + sqrt(3025)) / 8

x1 = (-7 +55 ) / 8

x1 = (48)/8

x1 = 6

There is another root, but it has to be minus and therefore cannot be used as a length. x2 = - 7.75

h = 6

b = 4*6 + 7 = 31

Check

Area = 1/2 * b * h

Area = 1/2 * 31 * 6

Area = 1/2 *186

Area = 93 which is what we were given so the answer is correct.

4 0
2 years ago
Can someone help me i am confused
hammer [34]

Answer:

3. 2

4. f(n) = 3 + 4(n - 1)

Step-by-step explanation:

3. The general term of the arithmetic sequence is given by:

                                    A(n) = - 14 + (n - 1)(2)

To find the ninth term of this arithmetic sequence, just put $ n = 9 $ in the general term.

∴ A(9) = - 14 + (9 - 1)(2) = - 14 + 8(2) = -14 + 16 = 2.

Therefore the ninth term in the arithmetic sequence is two.

4. To know which expression represents the given sequence, substitute different values for $ n $ to conclude.

In Option A, f(n) = 4 + 3(n - 1). Substitute n = 1.

We get f(1) = 4 + 3(0) = 4. This is not the first term in the sequence and can be eliminated.

In Option B, f(n) = 4 + 3n. Substitute n = 1.

We get f(1) = 4 + 3(1) = 7, not 3 so can be eliminated.

Similarly in Option C, we get 7 and could be eliminated.

In Option D, f(n) = 3 + 4(n - 1). Substitute n = 1.

We get f(1) = 3 + 4(1 - 1) = 3, which is the first term in the sequence.

Similarly, f(2) = 3 + 4(2 - 1) = 3 + 4 = 7.

Substitute n = 3, 4 to get other terms as well.

So, we say f(n) = 3 + 4(n - 1) is the representation of the given arithmetic sequence.

5 0
3 years ago
Solve for e E= mc2 m=3 c=6 what is the answer please
alina1380 [7]
E=mc^2 if m=3 and c=6

e=3(6^2)

e=3(36)

e=108
8 0
3 years ago
Read 2 more answers
Find two positive fractions with a quotient of 5/6
hichkok12 [17]
Alright, so if we divide fractions we get
(x/y)/(a/b)= (x/y)*(b/a). If the x is 5 and the a is 6, as well as y and b being the same therefore cancelling out, we can write it easily. For example, we can write (5/100)/(6/100) or (5/60)/(6/60)
3 0
3 years ago
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