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3 years ago

Which set of coodinates represents a function

Mathematics

2 answers:

satela [25.4K]3 years ago

5 0

Where are the coordinates i don’t see them

Klio2033 [76]3 years ago

4 0

What are the coordinates?

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What is a, b and c of the quadratic function 3x2−2x+1=0 ?

patriot [66]

Your answer is C.

3(1)2-2(2)+1=3
3=3

Hope i helped!

7 0

4 years ago

Solve the system of equations algebraically.

nordsb [41]

Answer: D

Step-by-step explanation:

$4x-3y=8\\5x-4y=5$

Let's take one of the equations and solve for a variable to use the substitution method.

$5x-4y=5\\5x=5+4y\\x=\frac{5+4y}{5}$

Now replace this in the first equation.

$4x-3y=8\\4(\frac{5+4y}{5})-3y=8\\\frac{20+16y}{5}-3y=8$

Separate the terms.

$\frac{20}{5}+\frac{16y}{5}-3y=8$

Solve 20/5

$4+\frac{16y}{5}-3y=8$

Subtract 4 from both sides to isolate y.

$4-4+\frac{16y}{5}-3y=8-4$

$\frac{16}{5}y-3y=4$

Solve the difference.

$\frac{16-(3)(5)}{5}y=4\\$

$\frac{16-15}{5} y=4$

$\frac{1}{5}y=4$

Multiply by the reciprocal or the inverted fraction that is next to y to isolate it.

$(\frac{5}{1} )(\frac{1}{5})y=4(\frac{5}{1})$

$y=20$

Now, in order to find x, replace y in any of the two equations.

$5x-4y=5\\5x-4(20)=5\\5x-80=5\\5x=5+80\\5x=85\\x=\frac{85}{5}\\x=17$

7 0

3 years ago

Luna is competing in a 200 m race.

Yuri [45]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Write the statement "x is no more than 42" as a mathematical inequality.

77julia77 [94]

Answer:

x≤ 42

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A florist uses 225 branches of winterberry to make 75 wreaths. Based on the ratio or unit rate, how many branches of winterberry

kondaur [170]

Answer:

the number of branches required to use 25 wreaths is 75 branches

Step-by-step explanation:

Given that

The florist used 225 branches of winterberry for making 75 wreaths

First we have to compute the unit rate or the ratio

= 225 ÷ 75

= 3 : 1

Now the number of branches required to use 25 wreaths is

= 3 × 25

= 75 branches

Hence, the number of branches required to use 25 wreaths is 75 branches

6 0

3 years ago