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Reil [10]
4 years ago
13

20% of Desiree's math test problems consisted of word problems. 30% of Everett's math test problems consisted of word problems.

Which statement must be true?
Mathematics
1 answer:
Semmy [17]4 years ago
3 0
The first statement must be true (20% of Desiree's math..)
The first statement can be true while the second statement is false, but the first statement cannot be false while the second statement is true.
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Divide the rational expressions <br> (X/x+1)(2/x)
saveliy_v [14]

( 1 + 1 )( 2/x )

(2)(2/x)

4/x

that's basically it

3 0
3 years ago
1. How do you define quadratic equations?​
oksian1 [2.3K]

Answer:

ax^{2} +bx+c^{2}=0

Step-by-step explanation:

A quadratic equation is a equation that takes the form: ax^{2} +bx+c^{2} = 0

   Ex. Using our definition of quadratic equations, ax^{2} +bx+c^{2}=0,

          We can set a = 2, b = 1, c = 6:

               2x^{2} +x+6^{2}=0

               2x^{2} +x+36=0

          Which can then be solved (if you are trying to solve it) as:

               (2x+9)(x-8)=0

                x=\frac{9}{2}, 8

6 0
3 years ago
8 miles in 0.5 hour what rate in miles per hour
yan [13]
In this question it is already given that a person travels 8 miles in 0.5 hours. This is enough information to get to the required answer. Let us first write down all the information's that are already given in the question.
In 0.5 hours the person covers a distance = 8 miles
Then
In 1 hour the person covers a distance of = 8/0.5 miles
                                                                   = 16 miles
So the speed of the person in miles per hour = 16/1 miles/hour
                                                                         = 16 miles per hour
8 0
3 years ago
Read 2 more answers
Select the correct answer. Which equation represents this line in point-slope form? A. `(y + 4) = (4)/(3) (x + 3)` B. `(y −4) =
Readme [11.4K]

Answer:

The correct option is `(y −4) = -(4)/(3) (x +3) ..

Step-by-step explanation:

Look at the attached picture:

The points we have given are (-3, 4) and (3, -4)

Find the slope by applying the formula:

m = y2-y1/x2-x1

Here x1= -3

x2= 3

y1 = 4

y2 = -4

Now put the values in the formula:

m = -4 -4 /3 -(-3)

m = -8/3+3

m = -8/6

Now cancel the term by table of 2

m = -4/3

When two points are given, the equation of the line is

(y - y1) = m (x - x1)

y - 4 = -4/3 (x - (-3))

y-4 =  -4/3 (x+3)

Thus the correct option is `(y −4) = -(4)/(3) (x +3) ....

4 0
3 years ago
Most insurance companies will replace a vehicle any time an estimated repair exceeds​ 80% of the​ "blue-book" value of the vehic
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It is 015 & with a line and a book o crove hdgsgub
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