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Sholpan [36]
3 years ago
15

(1-5q) - (2.5s + 8 ) - (0.5q + 6 )

Mathematics
2 answers:
Sladkaya [172]3 years ago
4 0
First rewrite it by distributing the negatives.
1-5q-2.5s-8-.5q-6
Now combine like terms.
-13-5.5q-2.5s
Aleksandr-060686 [28]3 years ago
3 0

Answer:

-5.5q-2.5s-13

Step-by-step explanation:

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Need help with Math (Quadratic)
BaLLatris [955]

Answer:

  f(x) = 2(x -3)² +5   or   f(x) = 2x² -12x +23

Step-by-step explanation:

The equation of a quadratic is easily written in vertex form when the coordinates of the vertex are given. Here, the point one horizontal unit from the vertex is 2 vertical units higher, indicating the vertical scale factor is +2.

__

<h3>vertex form</h3>

The vertex form equation for a parabola is ...

  f(x) = a(x -h)² +k . . . . . . vertex (h, k); vertical scale factor 'a'

<h3>equation</h3>

For vertex (h, k) = (3, 5) and vertical scale factor a=2, the vertex form equation of the parabola is ...

  f(x) = 2(x -3)² +5 . . . . . vertex form equation

Expanded to standard form, this is ...

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8 0
2 years ago
Maria invested $450 in a savings account and earned $126 in interest at the end of 7 years.
Brut [27]
The interest rate is B. 4%

Given:
Principal = 450
Interest = 126
term = 7 
rate = ?

Simple Interest is computed by multiplying the Principal, rate, and term.

Interest = P × r × t

126 = 450 × r × 7
126 = 3150r
r = 126/3150
r = 0.04 x 100% = 4%

To check:

I = 450 
× 0.04 x 7
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I = 126
5 0
3 years ago
Mr. Roberts bought a gas cooker $945. He sold it to a customer for 803.25 due to damage. Calculate:
AfilCa [17]

Answer:

A. $141.75

B. 15% loss (803.25/945)

Step-by-step explanation:

8 0
2 years ago
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