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Kitty [74]
3 years ago
10

Evaluate and answer in standard form:4^2/3^2​

Mathematics
1 answer:
Semenov [28]3 years ago
6 0

the answer is : 1.7777

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A teacher performing a demonstration finds that a piece of cork displaces 23.5 mL of water. The
lara [203]

Answer:

0.243 g/mL

Step-by-step explanation:

Density is grams divided by mL. All you need to do for this is take your values and use them for the equation. Divide 5.7 grams by 23.5 mL

4 0
3 years ago
Which of the following is equivalent to x/x^2-1 + 4/x^2-6x-7?
kkurt [141]

Answer:

x(x-7)+4(x-1)/(x-1)(x+1)(x-7)

Step-by-step explanation:

Given the expression x/x²-1 + 4/x²-6x-7

Factorize x²-6x-7

x²-6x-7

= x²-7x+x-7

= x(x-7)+1(x-7)

= (x+1)(x-7)

Replace back into the expression given

x/x²-1 + 4/x²-6x-7

= x/x²-1 + 4/ (x+1)(x-7)

= x/(x+1)(x-1) + 4/(x+1)(x-7)

Find the LCM

=  x(x-7)+4(x-1)/(x-1)(x+1)(x-7)

This gives the required expression

7 0
3 years ago
Write an expression that will have a product greater than both factors.
Karolina [17]
-2 * 3 = -6

-6 < -2 < 3
8 0
4 years ago
Read 2 more answers
6x − 3y = 7, −2x + y = −8 <br><br> x=?<br> y=?
kap26 [50]

Answer:

no solution

Step-by-step explanation:

6x - 3y = 7 → (1)

- 2x + y = - 8 → (2)

multiplying (2) by 3 and adding to (1) eliminates the variables

- 6x + 3y = - 24 → (3)

add (1) and (3) term by term

0 + 0 = - 17

0 = - 17 ← false statement

This indicates the system has no solution

5 0
2 years ago
Read 2 more answers
Pleas help this problem
IrinaK [193]
Every month she completes 5 paintings
it has beeen 6 months
6*5=30 paintings

needs 38
38-30=8 paintings more

she needs to complete 8 more paintings
4 0
3 years ago
Read 2 more answers
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