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musickatia [10]
3 years ago
15

I NEED HELP ASAPPPPPPP

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
5 0
If 0.5in is equal to 3ft on the scale drawing, 6ft would be equal to 1in.
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I need help with the simplified form of 1/2(-14m+36)
vampirchik [111]
You can use the Distributive Property to split this into an easier problem.

(\frac{1}{2} x -14m) + (<span>\frac{1}{2} x 36)

-7m + 18</span>
4 0
3 years ago
Read 2 more answers
Harry is trying to solve the equation y = 2x2 − x − 6 using the quadratic formula. He has made an error in one of the steps belo
professor190 [17]

Answer:

Step 2

Step-by-step explanation:

The quadratic formula is given by x=-b+-\frac{\sqrt{b^{2}-4ac } }{2a}

Our equation is y = 2x²-x-6

So here our a = 2, b = -1, and c = -6

We can now plug these numbers into our formula

x= -(-1) +-\frac{\sqrt{(-1)^{2}-4(2)(-6) } }{2(2)} = 1 +-\frac{\sqrt{1+24} }{4} = 1+-\frac{\sqrt{25} }{4}

Step 2 is incorrect because it states that "x equals the negative of negative 1 plus or minus the square root of negative one plus forty-eight all over two times 2."

The correct statement would be "x equals the negative of negative 1 plus or minus the square root of positive one plus forty-eight all over two times 2.", because the square of a negative is positive, resulting in a positive one.

Since this step is incorrect, the steps after are also incorrect, but Harry went wrong at Step 2

4 0
3 years ago
A paint store sells exterior paint for $35.25 a gallon and paint rollers for $7.50 each write an equation in standard form of th
Arturiano [62]

Answer:

35.25p + 7.5r = 185

Step-by-step explanation:

  Gallons of paint:  p

                 Rollers:  r

  35.25p + 7.5r = 185

7 0
3 years ago
How do you simplify 4(5+x)
alexira [117]

Answer:

20+4x

Step-by-step explanation:

4*5+4*x=

20+4x.

*Distributive law upon addition.*

8 0
3 years ago
Read 2 more answers
Janine is analyzing spending habits of students in her high school. She finds a mean monthly discretionary expense of $70 spent
aliina [53]

Answer:

Variance = 25

Step-by-step explanation:

<em>Standard deviation is the under root of variance.</em>

<em>Variance is the square of standard deviation.</em>

<u>Data:</u>

Mean = 70

Variance = ?

Standard deviation = √variance = 5

Variance = 5²

Variance = 25.

Therefore, the variance is 25.

3 0
4 years ago
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