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Zina [86]
3 years ago
12

What’s the answer to this question

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0

I believe it is B because you are effecting the x axis so therefore need to add 2 to the x.

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Write a rule for the linear function in the graph
Maurinko [17]

Gradient = \frac{y_{1}-y_{2}}{x_{1}-x_{2}}

\frac{5-1}{2-1} \\\frac{4}{1}

This means the gradient is 4x.

The y intercept is where the line crosses the y axis. We can see this is at -3.

<h2>Rule: <u>y = 4x -3</u></h2>

Substitute your values to check if it's right.

y = 4x -3

5 = 4(2) - 3

5 = 8 - 3

5 = 5

1 = 4(1) - 3

1 = 4 - 3

1 = 1

7 0
3 years ago
When Cullen cleaned behind his dresser, he found 73 cents, all in nickels and pennies. There were 25 coins. How many were nickel
Georgia [21]
Let n = number of nickels, and p = number of pennies.
The number of coins is 25, so we get this equation.
n + p = 25

The value of the coins is 0.05 per nickel, and 0.01 per penny.
0.05n + 0.01p = 0.73

Now you have a system of equations.

n + p = 25
0.05n + 0.01p = 0.73

Solve the first equation for n:
n = 25 - p

Now substitute into the second equation.

0.05(25 - p) + 0.01p = 0.73

1.25 - 0.05p + 0.01p = 0.73

-0.04p = -0.52

p = 13

There were 13 pennies.
Now we substitute 13 for p in n + p = 25 to find out the number of nickels.

n + 13 = 25
n = 12

There are 13 pennies and 12 nickels.

Check: 13 pennies and 12 nickels does total 25 coins.
13 * 0.01 + 12 * 0.05 = 0.13 + 0.60 = 0.73
The value is $0.73.
Our answer is correct.
5 0
3 years ago
Find the midpoint of and label it D. Find the midpoint of and label it E. Record the coordinates of points D and E. When you’re
Oduvanchick [21]

Answer:

The coordinates of the midpoints are D(1.5, 2.5) and E(3.5, 2.5).

Step-by-step explanation:

plato

3 0
3 years ago
I have to explain the meaning of zero?<br> Please help, ill give brainly!
Klio2033 [76]

Answer:

0 ( zero) is a number, and the numerical digit used to represent that number in numerals. It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems.

8 0
3 years ago
Dy<br>Find in the following<br>dx<br>(i) y2 = 4x ​
VMariaS [17]

Step-by-step explanation:

) y2 = 4x

differenting both side with respect to x

dy²/dx=d4x/dx

2y dy/dx=4

dy/dx=4/2y=2/y

8 0
3 years ago
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