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Wittaler [7]
3 years ago
14

Can Anyone help me please with those 2 questions?

Mathematics
2 answers:
yarga [219]3 years ago
5 0

Answer:

-4x+15y=27 for the first one

-15c+14f=30 for the second one

Step-by-step explanation:

All you have to do is distribute it out and combine like terms

horsena [70]3 years ago
5 0

Answer:

1st: -4x + 15y -21

2nd: -15e + 14f + 30

Step-by-step explanation:

So you would first distrubute the number outside of the parenthesis. So for the first one thats a -3 and for the second one it's a -7. Multiply those by the terms inside and then combine your like terms. That will give you your answers. Hope this helps :)

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Evaluate each expression. Determine if the final simplified form of the expression is positive or negative -42 (-4)2 42
Sati [7]

Answer:

Given the expression:

1.

-4^2

we know:

4^2 = 4 \times 4 = 16

then;

-4^2 = -16

Therefore, the value of expression -4^2 is -16 i.e negative.

2.

(-4)^2

we know:

4^2 = 4 \times 4 = 16

(-1)^2 = 1

then;

(-4)^2 = (-1)^2 \cdot (4)^2= 16

Therefore, the expression (-4)^2 is 16 i.e Positive.

3.

4^2

we know:

4^2 = 4 \times 4 = 16

then;

4^2 = 16

Therefore, the expression 4^2 is 16 i.e Positive.


8 0
3 years ago
Evaluate the expression 3^4 divided by (14 - 5) x 2<br><br>PLEASE HELP ASAP!
zysi [14]

Answer:

= 18

Step-by-step explanation:

hope this helped

4 0
3 years ago
Select the two values of x that are roots of this equation.<br> x2 - – 5x + 5 = 0
umka21 [38]

Answer:

Using the Quadratic Formula

x=-b ± √b²-4ac/[2a]

x= -(-5) ± √5² - 4(1)(5)/(2)

x= 5 ± √25-20 /(2)

x= 5 ± √5 /(2)

x= 5 + √5/(2) and 5 - √5/(2)

Answer

B and C

3 0
3 years ago
Can someone please answer this for me please??
klio [65]

Answer:

15/16

Step-by-step explanation:

Using the order of operations, we need to multiply in the parentheses first...

3/5*25/24=75/120, which simplifies to 5/8.

Next, we need to divide 5/8 by 2/3. To divide, we can actually multiply by the reciprocal, which is flipping the fraction that you are dividing by. In this case, we need to multiply 5/8 by the reciprocal of 2/3. The reciprocal of 2/3 is 3/2, so we need to multiply 5/8 by 3/2.

5/8*3/2=15/16

This is the final answer!

I hope this helped you out!! Have an amazing day φ(゜▽゜*)♪

6 0
3 years ago
2p + 194.99 = 284.97
Lostsunrise [7]

Answer: true

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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