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Makovka662 [10]
3 years ago
7

Pls help....................

Mathematics
1 answer:
PolarNik [594]3 years ago
6 0
b^2+6b=0\\
b(b+6)=0\\
b=0 \vee b=-6\\\\
5x^2-5x=0\\
5x(x-1)=0\\
x=0 \vee x=1\\\\
-10x+35x=0\\
25x=0\\
x=0\\\\
2x+15x=0\\
17x=0\\
x=0\\\\
18x^2+6x=0\\
6x(3x+1)=0\\
x=0 \vee x=-\frac{1}{3}\\\\
-32x^2-24x=0\\
-8x(4x+3)=0\\
x=0 \vee x=-\frac{3}{4}
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Mr Ansah gave a portion of money to his two children.he gave 35% of it to his daughter and 20% to his son . If he had 495 left,
Veseljchak [2.6K]

Answer: 1100

Step-by-step explanation: mark x for the total sum.

0.35x+ 0.20x + 495 = x. 495= x-0.35x-0.20x

495= 0.45x. X= 495/0.45

5 0
3 years ago
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Prior to September, 2000, taxi fares from Washington DC to Maryland were described as follows: $2.00 up to and including 1⁄2 mil
GREYUIT [131]

The piecewise function is

f(x) = 2, 0 < x ≤ 1/2

f(x) = 2 + 0.7x, x > 1/2

<h3>How to determine the piecewise function?</h3>

From the question, we have:

Fares = $2.00 ⇒ up to (and including) 1/2 miles

Fares = $0.70 increment ⇒ greater than 1/2 miles

Let x represent the number of miles, and f(x) the fares.

So, we have:

f(x) = 2, 0 < x ≤ 1/2

f(x) = 2 + 0.7x, x > 1/2

The above represents the piecewise function

Read more about piecewise function at:

brainly.com/question/18859540

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3 0
2 years ago
Please help! Will mark brainliest! 20 points!
notsponge [240]

8      3

    -

9      4


Get common denominators.

8(4)      3 (9)

        -

9(4)      4 (9)

=

32      27

      -

36      36

=

5/36

5 0
3 years ago
Find the area of the semicircle. diameter = 12
dimaraw [331]

Answer:

\huge\boxed{\sf Area\ of \ Semicircle = 56.55 \ units^2}

Step-by-step explanation:

Diameter = 12

Radius = 12/2 = 6

\sf Area\ of \ Semicircle =\frac{\pi r^2}{2} \\Area\ of \ Semicircle =\frac{\pi (6)^2}{2} \\Area \ of \ Semicircle = \frac{\pi (36)}{2}\\ Area \ of \ Semicircle = 18 \ pi

\sf Area\ of \ Semicircle = 56.55 \ units^2

7 0
3 years ago
Read 2 more answers
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