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Karo-lina-s [1.5K]
3 years ago
15

What equation has an a-value of 1 , a b-value of -3 and a c-value of -5

Mathematics
1 answer:
FromTheMoon [43]3 years ago
5 0
Hello : 
an equation is : (x-1)(x+3)(x+5)
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Ramon wants to make an acute triangle with three pieces of wood. So far, he has cut wood lengths of 7 inches and 3 inches. He st
o-na [289]

Answer: Exactly square root 58 inches

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AC^2 = AB^2 + BC^2

Where AC is the longest side. The question requires us to calculate the longest side and with the other two sides already known, the Pythagoras theorem now becomes,

AC^2 = 7^2 + 3^2

AC^2 = 49 + 9

AC^2 = 58

Add the square root sign to both sides of the equation

AC = square root 58 inches

5 0
3 years ago
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Each hat cost $9. Each scarf cost $4 less than each hat. What is the total for 7 hats and 9 scarves? Write a number sentence for
Sladkaya [172]
9xh = total cost of the hat 
9 per hat - 4 = $5 each scarf

h = hat 
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(9xh) + (5x s)
(9x7) + (5x9) = 108
8 0
3 years ago
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1. Each spring, Genevieve helps her mom plant flowers. There are 24 rows of
avanturin [10]

Answer:

Genevieve plants a total of 432 flowers.

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18 flowers go in every row so you have to multiply the number of rows (24) by the number of flowers in each row (18) to get the total of 432 flowers.

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3 years ago
The value of y varies directly as the square of x and y=27 when x=9. Find the equation represents this relationship. Report the
skad [1K]

Answer:

The relation between x and y is

y=\frac13 x^2

Step-by-step explanation:

Given that,

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y\propto x^2

\Rightarrow y=rx^2

where r is constant of proportional.

Given that,

y= 27 and x=9

Plug y= 27 and x=9 in above relation

y=rx^2

\therefore 27=r(9)^2

\Rightarrow 27 = r.81

\Rightarrow r=\frac{27}{81}

\Rightarrow r=\frac{1}{3}

The relation between x and y is

y=\frac13 x^2

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3 years ago
Translate “the sum of x and one-half of x” into mathematical expression
Aleks [24]

Answer:

X+ 0.5X or 1.5X

Step-by-step explanation:

the sum means that it want an addition problem. and so it is saying X + 1/2 (0.5)X which gives you 1.5X or you can leave it has X+0.5X

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