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3 years ago

State he domain and range of the following relation. (picture included)

Mathematics

1 answer:

k0ka [10]3 years ago

3 0

B is the answer because domain is x and range is y

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Find the value of x to the nearest degree <br>a. 30<br>b. 60<br>c. 70<br>d. 85

storchak [24]

I think its ummm B).

7 0

3 years ago

What is the coefficient of X^2Y^2 in the expansion of (x+y)^4

nata0808 [166]

Answer:

Step-by-step explanation:

We want to expand this; (x + y)⁴

This can be written as;

(x + y)² × (x + y)²

This gives;

(x² + 2xy + y²) × (x² + 2xy + y²)

This gives;

x²(x² + 2xy + y²) + 2xy(x² + 2xy + y²) + y²(x² + 2xy + y²) = x⁴ + 2x³y + x²y² + 2x³y + 4x²y² + 2xy³ + x²y² + 2xy³ + y⁴

Simplifying gives;

x⁴ + 4x³y + 4xy³ + 6x²y² + y⁴

Thus, the coefficient of x²y² is 6

3 0

2 years ago

Matt thinks of a number. when he multiplies it by 5 and adds he gets the same as when he multiplies it by 6 and subtracts 5. wha

krek1111 [17]

The number is 10.
5*10=50
50+5=55
6*10=60
60-5=55

3 0

3 years ago

‼️‼️solve by substitution {-r+T=5 , -2r+T=4. all these problems w work shown (along w the other problems i posted) r due in the

Luden [163]

Answer:

#4: (r,t) = (1,6) #5: (x, y) = (- $\frac{1}{2}$ ,4) #6: (x, y) = (3, 5) #7: (p, r) = (10, $\frac{14}{3}$ )

Step-by-step explanation:

#4:

Solve for t.

t = 5 + r

Substitute the given value of t into equation

-2r + 5 + r = 4

Solve for r

r = 1

substitute the given value of r into equation

t = 5 + 1

solve for t

t = 6

solution is ordered pair (r, t) = (1,6)

#5:

Solve for y.

y = 2 - 4x

Substitute the given value of y into equation

2x - (2- 4x) = -5

Solve for x

x = - $\frac{1}{2}$

substitute the given value of x into equation

y = 2 - 4x (- $\frac{1}{2}$ )

solve for y

y = 4

solution is ordered pair (x, y) = (- $\frac{1}{2}$ ,4)

#6:

Solve for x

x = -12 + 3y

Substitute the given value of x into equation

2 (-12 + 3y) + y = 11

Solve for y

y = 5

substitute the given value of y into equation

x = -12 + 3 x 5

solve for x

x = 3

solution is ordered pair (x, y) = (3, 5)

Solve for r

r = $\frac{14}{3}$

Substitute the given value of into equation

-2p + 3x $\frac{14}{3}$ = -6

Solve for p

p = 10

solution is ordered pair (p, r) = (10, $\frac{14}{3}$ )

5 0

2 years ago

Aaron solved an inequality and then graphed the solution as shown below.

san4es73 [151]

Answer is the first one im pretty sure

3 0

2 years ago