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anzhelika [568]
3 years ago
7

Y

Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
Judd es no como la neni
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Seven friends went out to lunch. The meal subtotal was $91.22, including tax. The restaurant has a policy that for parties of si
vlada-n [284]

Answer:

$ 74.80

Step-by-step explanation:

The subtotal cost of the meal was $91.22  including tax.

The 18% tip is added for six or more.

The tip added should reduce the meal subtotal by 18 %

Reduce $91.22 by 18%  to get ;

82/100 * 91.22 = $ 74.80

7 0
3 years ago
7 + 3p^2 in standard form
lara31 [8.8K]

Answer:

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 7 +  3p2

Step  2  :

Polynomial Roots Calculator :

2.1    Find roots (zeroes) of :       F(p) = 3p2+7

Polynomial Roots Calculator is a set of methods aimed at finding values of  p  for which   F(p)=0  

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  p  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  3  and the Trailing Constant is  7.

The factor(s) are:

of the Leading Coefficient :  1,3

of the Trailing Constant :  1 ,7

3p2 + 7

7 0
4 years ago
Find the height of a tree of angle of elevation of its top changes from 25 degree to 50 degree as the observer advance 15m towar
Natali5045456 [20]

Answer:

  11.5 m

Step-by-step explanation:

The problem can be solved using a trig relation that relates the side opposite the angle to the side adjacent to the angle. That relation is ...

  Tan = Opposite/Adjacent

The lengths of the adjacent sides of the triangle can be found by rearranging this formula:

  Adjacent = Opposite/Tan

__

The "opposite" side of the triangle is the height of the tree, which we can represent using h. The problem statement tells us of a relation between adjacent side lengths and angles:

  h/tan(25°) -h/tan(50°) = 15 . . . . . moving 15 meters changes the angle

  h(1/tan(25°) -1/tan(50°)) = 15

  h = 15·tan(25°)·tan(50°)/(tan(50°) -tan(25°)) = 15(0.55572/0.72545)

  h ≈ 11.4907 . . . . meters

The height of the tree is about 11.5 meters.

7 0
3 years ago
The sum of negative eighteen and a number is eleven. What is the number?
valentinak56 [21]

Answer:

-18 + x = 11

x = 29

Step-by-step explanation:

To solve this, you can use the formula of a + b = c

-18 + x = 11\\-18 = 18\\11 + 18 = 29\\x = 29

5 0
2 years ago
Read 2 more answers
Helpppppppppp plzzzzz
Ratling [72]

so do all the question like this types

thankyou for your question

4 0
3 years ago
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