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MArishka [77]
3 years ago
14

The dress store is having a sale where all merchandise 1/4 off. A women buys $48 of merchandise at the sale price

Mathematics
2 answers:
Ray Of Light [21]3 years ago
7 0
You just have to multiply 48 by 4 to find out its original price
Anna71 [15]3 years ago
7 0
<span>$48 is 3/4 what she would have paid, so $48/(3/4)=$64 ANSWER: She would have paid $64 for the merchandise at regular price</span>
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Naomi pays $1.50 each time she rides the city bus. She has already ridden the bus 18 times so far this year. The expression repr
klio [65]

Answer:

$27

Step-by-step explanation:

18 times $1.50 = 27 dollars a year

5 0
3 years ago
How do you do this question?
vaieri [72.5K]

Answer:

(-∞, -2), (-2, -0.618), and (1.618, 3)

Step-by-step explanation:

The red plus (+) signs indicate the regions in which the function is concave up, and the red negative (-) signs indicate the regions in which the function is concave down.

Note that the sign of the concavity changes at an inflection point.

Let's examine the intervals given.

(-∞, -2): Yes, concave up.

(-∞, -1.17): No. Concave up in (-∞, -2) but concave down in (-2, -1.17).

(-2, 0): No. Concave down in (-2, -1.17) but increasing in (-1.17, 0.0).

(-1.17, 0.689): Yes. Concave up.

(-0.618, 1.618): No. Concave up in (-0.618, 0.689) but concave down in (0.689, 1.618).

(0, 3): No. Concave up in (0, 0.689), concave down in (0.689, 2.481), and concave up in (2.481, 3).

(2.481, ∞): Yes. Concave up.

The three intervals that are concave up are (-∞, -2), (-1.17, -0.689), and (2.481, ∞).

4 0
3 years ago
(5x^2+3x+4)-(2x^2+5x-1)
DedPeter [7]
Answer:
The answer is (3x^2-2x+5)
6 0
3 years ago
Tiana wants to know how tall her school building is on a sunny day she measures the shadow of the building to be 6 feet. At the
Alisiya [41]
5/2 * 6 = 15
h/6 * 6 = h
so
h = 15
The school is 15ft tall
5 0
3 years ago
A2-b2 ÷5a-5b factorise​
katrin2010 [14]

Answer:

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

STEP

1

:

           5a + 5b

Simplify   ———————

           a2 - b2

STEP

2

:

Pulling out like terms

2.1     Pull out like factors :

  5a + 5b  =   5 • (a + b)  

Trying to factor as a Difference of Squares:

2.2      Factoring:  a2 - b2  

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  a2  is the square of  a1  

Check :  b2  is the square of  b1  

Factorization is :       (a + b)  •  (a - b)  

Canceling Out :

2.3    Cancel out  (a + b)  which appears on both sides of the fraction line.

Final result :

   5 / a -b  

 

 

Step-by-step explanation:

3 0
3 years ago
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