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3 years ago

What is the solution to y= 4x+8 y=5x+1

Mathematics

1 answer:

DanielleElmas [232]3 years ago

5 0

Answer:

y=9x+9

Step-by-step explanation:

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Write the ratio for tan A.

qaws [65]

Step-by-step explanation:

With reference angle A

perpendicular (p) = 3

base (b) = 4

Now

Tan A = p/ b

= 3/4

Hope it will help :)❤

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3 years ago

2. At the sale, Jessica bought 4 pairs

Sav [38]

How much did each of the pair sunglasses cost?

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2 years ago

Sonji has $5.25 in nickels and dimes . The coin value can modeled by the equation 0.10+0.05n=5.25, where d represents the number

Lyrx [107]

63

.10d + .05n = 5.25

.10(21) + .05n = 5.25

2.1 + .05n = 5.25

.05n = 3.15

n = 3.15/.05

n = 63

6 0

3 years ago

For each function below, determine whether or not the function is injective and whether or not the function is surjective. Be su

olga55 [171]

Answer:

The function is neither injective nor surjective

Step-by-step explanation:

f: P({1,2,3}) -> N is given by f(A) = |A|

where P(S) denotes the power set of a set S and |A| the number of elements of A

$P(\left \{ 1,2,3 \right \})=\left \{ \varnothing ,\left \{ 1 \right \},\left \{ 2 \right \},\left \{ 3 \right \},\left \{ 1,2 \right \},\left \{ 1,3 \right \},\left \{ 2,3 \right \},\left \{ 1,2,3 \right \} \right \}$

$f(\varnothing )=0$

$f(\left \{ 1 \right \})=f(\left \{ 2 \right \})=f(\left \{ 3 \right \})=1$

$f(\left \{ 1,2 \right \})=f(\left \{ 1,3 \right \})=f(\left \{ 2,3 \right \})=2$

$f(\left \{ 1,2,3 \right \})=3$

The function is not injective, for

$P(\left \{ 1 \right \})=P(\left \{ 2 \right \})$

but

$\left \{ 1 \right \}\neq \left \{ 2 \right \}$

The function is not surjective either, because 5 is a natural number which is not the image of any element A under f, i.e., there is no element in A in P({1,2,3}) such that f(A)=5

6 0

4 years ago

What is an equation of the line that passes through the point (2, -3) and is

alexira [117]

Answer:

y = 5/2x - 8

Step-by-step explanation:

convert to y = mx + b

2x + 5y = 10

5y = -2x + 10

y = -2/5x + 2

flip the slope to 5/2

y = 5/2x + 2

plug in (2, -3)

-3 = 5/2(2) + b

-3 = 5 + b

-8 = b

y = 5/2x - 8

4 0

2 years ago