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3 years ago

If the point (7,3) is on the graph of an equation, which statement must be

Mathematics

1 answer:

Likurg_2 [28]3 years ago

4 0

Answer:

Step-by-step explanation:

the answer is c because they cannot be the only thing that makes it true because it is just one point you need several for an equation so yes it is part of the equation but it is not the only part

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Hannah purchased three items at the store for $7.05, $8.12, and $3.97. She paid for

vichka [17]

Answer:

She should receive $30.86

Step-by-step explanation:

$7.05 + $8.12 + $3.97 =19.14

50 - 19.14 = 30.86

6 0

2 years ago

1. -222=-2x-3(4x+18)<br>2. 154=2x-6(-2x-14)<br>solve for x

Aleksandr [31]

Answer:

1. x = 12

2. x = 5

Step-by-step explanation:

1. -222 = -2x - 12x - 54

-222 = -14x - 54

-168 = -14x

x = 12

2. 154 = 2x + 12x + 84

154 = 14x + 84

70 = 14x

x = 5

4 0

2 years ago

Travelling with a current, a boat covers a distance 1.5times greater than travelling against the current in the same amount of t

slega [8]

Let the speed of the current equal c
and the speed of the boat in still water equal b.

b + c = 1.5 (b - c)
b + c = 1.5b - 1.5c
0.5b = 2.5c
b = 5c

The speed of the current is 1.5 mph so
b = 5 * 1.5 = 7.5 mph

3 0

2 years ago

Please, I need help I'm way behind.

gregori [183]

Answer:

$\frac{18√2}{√3}$

Step-by-step explanation:

The lengths of the sides of a 30-60-90 triangle are in the ratio 1:2:√3.
The lengths of the sides of a 45-45-90 triangle are in the ratio 1 : 1 : √2
We can get the length of the longest side of the bottom triangle is 9×2÷√3 = $\frac{18}{√3}$
And based on the theory shown on the 2nd step, we can get x (the length of the longest side of the upper triangle) is $\frac{18}{√3}$ x√2

3 0

3 years ago

HELP HELP HELP

kirill [66]

Answer: I think b=5

Step-by-step explanation:

3 0

2 years ago