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3 years ago

How do you solve he formulas for numbers 9 and 10?

Mathematics

1 answer:

Nookie1986 [14]3 years ago

3 0

t = V+K/g, n=multiply both side by g to get :

TG = V+K

now divide both sides by T to get G alone

so G = V/t + K/t = g = (V+K)/t

10)l = -a +2S/2

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An animal shelter spends $5.50 per day to care for each bird and $8.50 per day to care for each cat. Nicole noticed that the she

aliina [53]

Answer: 19 birds were at the shelter on Wednesday.

Step-by-step explanation:

Let x represent the number of birds that were at the shelter on Wednesday.

Let y represent the number of birds that were at the shelter on Wednesday.

Nicole found a record showing that there were a total of 40 birds and cats on Wednesday. This means that

x + y = 40

The animal shelter spends $5.50 per day to care for each bird and $8.50 per day to care for each cat. Nicole noticed that the shelter spent $283.00 caring for birds and cats on Wednesday. This means that

5.5x + 8.5y = 283 - - - - - - - - - - - - - -1

Substituting x = 40 - y into equation 1, it becomes

5.5(40 - y) + 8.5y = 283

220 - 5.5y + 8.5y = 283

- 5.5y + 8.5y = 283 - 220

3y = 63

y = 63/3 = 21

x = 40 - y = 40 - 21

x = 19

8 0

4 years ago

2 in 1

ollegr [7]

1)
2x^2 - 13x - 24 = 0;
the discriminant is : ( - 13 )^2 - 4 * 2 * ( -24 ) = 169 + 192 = 361 = 19^2 => we have two different rational-number solutions ;

2)
[ -2( x + 2 ) - 3( x - 5 ) ] / [ ( x - 5 )( x + 2 ) ] < 0 <=>

( -5x + 11 ) / [ ( x - 5 )( x + 2 ) ] < 0

We have 2 situations :
a) - 5x + 11 < 0 and ( x - 5 )( x + 2 ) > 0 => x∈ ( 11 / 5 , + oo ) and x∈( -oo, - 2 )U
( 5 , + oo ) => x∈( 5, +oo);
b) - 5x + 11 > 0 and ( x - 5 )( x + 2 ) < 0 => x∈(-oo, 11/5) and x∈( -2, 5 ) =>
x∈( -2, 11/5 );

Finally, x∈ U (-2, 11 / 5 ) U ( 5, +oo).

3 0

3 years ago

Points -3,2 rotated 90 clockwise its a maze i need help o thank u

SCORPION-xisa [38]

Answer:

(2,3)

Step-by-step explanation:

Rotation through 90 clockwise gives the expression

( x , y )___ ( y ,- x )

so when you put the points -3 ,2 in the relation , it becomes

( -3 , 2 ) ___ ( 2, - -3 )

= ( x, y ) __ ( 2, 3 ). meaning when you rotate -3,2 through 90 clockwise you will get the image ( 2 ,3 )

6 0

4 years ago

NEEDS TO BE DONE TODAY SOMEONE PLEASE

eduard

Answer:

Step-by-step explanation:

16.

RT=17.885

RS=9.741

Angle T=33°

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Angle B= 47.291°

Angle A= 42.709°

∠A = 180° - B - C = 1.36944 rad =

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8 0

3 years ago

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Alla [95]

Leslie: y= 2x

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3 years ago