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Yuri [45]
3 years ago
9

If p =-2 ,q= -1 and r=3 find the value of . -(1), p ²+ q²- r²​

Mathematics
1 answer:
sammy [17]3 years ago
8 0

Answer:

Step-by-step explanation:

(-2)^{2} + (-1)^{2} - (3^{2} )\\4 + 1 -9\\-4

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The width of Florida is 4/5 of its length if the length of Florida is about 450 miles what is the approximate width
Vaselesa [24]
4/5 = 0.8

.8 * 450 = 360 miles
3 0
3 years ago
Please someone helpppp ):
skad [1K]

Answer:

  70 -20x = 60 -15x

Step-by-step explanation:

The amount of money left on Josh's card is ...

  70 -20x

The amount of money left on Jessica's card is ...

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These amounts are the same when ...

  70 -20x = 60 -15x

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<em>Additional comment</em>

The solution to this equation is ...

  10 = 5x   ⇒   x = 2 . . same amount after purchase of 2 pizzas

3 0
2 years ago
Giving 15 points cause i rlly need help
yarga [219]
2/9 of the pizza C: if bob has 1/3 of the pizza left and he eats 2/3, then you take 2/3 of 1/3, so you multiply.
8 0
3 years ago
Add the followinf expresion<br>b. x- 3y + 4z , y – 2x- 8z ,5x – 2y – 3z ​
Mariana [72]

Answer:

4x - 4y - 7z

Step-by-step explanation:

x - 3y + 4z + y - 2x - 8z + 5x - 2y - 3z =

(x - 2x + 5x) + (y - 3y - 2y) + (4z - 8z - 3z) =

4x + (- 4y) + (-7z) =

4x - 4y - 7z <===

3 0
3 years ago
Write the phrase as a rate in simplest form 260 inches in 15 seconds ?
Lemur [1.5K]

Answer:

52:3

Step-by-step explanation:

divide 260 by 5 and 15 by 5

260 divided by 5 = 53

15 divided by 5 = 3

260:15 = 52:3


4 0
3 years ago
Read 2 more answers
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