Answer:
X=43.5
Step-by-step explanation:
The angle will equal 90 so the equation is 90=2x+3
87=2x
x=43.5
35° because it’s the same as the other side
Answer:
75600
Step-by-step explanation:
A perfect square is a number that can be expressed as the product of two equal integers. To determine that a trinomial is a perfect square we use the the discriminant given by:
b^2-4ac
where a,b and c have been obtained from the trinomial given by:
ax^2+bx+c;
if the value of the discriminant is a perfect square then the trinomial is a perfect square trinomial
Answer: Hassan's expression:
d = original price
0.25d = amount of discount
d-0.75d= sale price of the book
Bella's expression
0.75d = sale price of a book
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
d = original price in dollars
25% off = 0.25 in decimal form ( 25/ 100 = 0.25)
Hasan's expression:
d−0.25d
In this expression 0.25d is the amount of discount , and d is the original price.
For example :
If a book costs $100 (original price) :
sale price =100 - (0.25 x 100)
sale price=100- 25
sale price=75
Bella's expression:
0.75d
in this expression 0.75d is the sale price ( d is the original price and since the percent discount is 0.25 it can be expressed as a 0.75 of the original price since 100-25=0.75)
