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GenaCL600 [577]
3 years ago
10

X²-9y²can someone assist plz​

Mathematics
1 answer:
Annette [7]3 years ago
3 0

Answer:

{x}^{2}  - 9 {y}^{2}  \\  =  {x}^{2}  -  {3}^{2}  {y}^{2}  \\  =  {x}^{2}  -  {(3y)}^{2}  \\  = (x - 3y)(x + 3y)

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State whether the given equation or function is linear
WINSTONCH [101]

Answer:

there's no equation

Step-by-step explanation:

e

6 0
3 years ago
Read 2 more answers
Which athlete did the most sit-ups per minute?
irinina [24]
Answer: D’Andrea

Explanation: 93/3 = 31
176/4=44
215/5= 43
111/3= 37

44 is greater than 31, 43, and 37 therefore D’Andrea does the most sit-ups per minute.
4 0
3 years ago
If a 20-foot tree casts a shadow of 15 ft how long is the shadow of a student who is 5 ft 4 in tall?​
irina1246 [14]

Answer:

4 feets

Step-by-step explanation:

Given that :

Height of tree = 20 feets

Shadow of tree = 15 ft

Height of student = 5ft 4 in ; 4 in = 0.3333 foot = 5.3333 feet

Shadow of student = s

Height of tree / shadow of tree = height of student / shadow of student

20 / 15 = 5.33333 / s

Cross multiply :

20 * s = 15 * 5.33333

s = 79.99995 / 20

s = 3.9999975

Shadow of student =, 4 feets

7 0
3 years ago
Evaluate: |-5|-|6|+|8|​
marin [14]

Answer: 7

Step-by-step explanation:

First find the absolute value of the numbers then apply the signs.

The absolute value of -5 is 5

The absolute value of 6 is 6

The absolute value of 8 is 8

5 - 6 + 8  = 7

8 0
3 years ago
Here are the costs of the sametypes is shops shop a pack 4 batteries £1.60
dalvyx [7]

Answer:

Cost in shop A is lesser.

Step-by-step explanation:

Given:

Shop A 4 batteries cost = £1.60

Shop B 6 batteries cost =  £2.70

Find:

Lower price

Computation:

Cost in shop A = £1.60 / 4

Cost in shop A = £0.4

Cost in shop B = £2.70 / 6

Cost in shop B = £0.45

Cost in shop A is lesser.

5 0
3 years ago
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