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katrin2010 [14]
3 years ago
15

4 + x/7 = 2 plz solve

Mathematics
2 answers:
Fofino [41]3 years ago
8 0

Answer x=-14.

Step-by-step explanation:

4+x/7

4+ -14/7

4+-2

2

NemiM [27]3 years ago
8 0

Answer:

4 +\frac{x}{7}=2

\frac{28 + x}{7} = 2

28 +x = 14

x =14 - 28

x = -14

Hope this helped.

Step-by-step explanation:

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A card is drawn from a standard deck of 52 cards. Find the probability of drawing red card or a face card
nata0808 [166]

Answer:

12/104 or around 11% chance

Step-by-step explanation:

This is because there is a total of 26 red cards (1/2) and a total of 12 face cards (12/52). So, you multiply 1/2 x 12/52 and get 12/104 or around 11% chance

8 0
3 years ago
What is the difference of the polynomials?<br><br> (8r6s3 – 9r5s4 + 3r4s5) – (2r4s5 – 5r3s6 – 4r5s4)
tangare [24]
8r^6s^3 - 9r^5s^4 + 3r^4s^5 - (2r^4s^5 - 5r^3s^6 - 4r^5s^4) =
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6 0
2 years ago
Read 2 more answers
Help me out asap!please and thank you
irga5000 [103]

Answer:

c. (5, -2)

Step-by-step explanation:

as we can clearly see, the 4th vertex has to be on the positive side of x.

therefore, all answer options with negative x are out.

(2, -5) is almost at D (-1, 5). that cannot be right for a rectangle.

that leaves only c as right answer.

FYI - how to get this without predefined answer portions ?

the x- difference of B to A is 4 (from -5 to -1). the x-difference from D to C must be the same (4). 1 + 4 = 5.

so, x of D must be 5.

the y- difference of B to A is 3 (from 3 to 6). the y-difference from D to C must be the same (3). -5 + 3 = -2.

so, y of D must be -2.

3 0
1 year ago
A fossilized leaf contains 18% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as
Sati [7]

Answer: The age of the fossilized leaf is 13829 years.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

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k = rate constant  

t = age of sample

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a - x = amount left after decay process = \frac{18}{100}\times 100=18  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

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b) for finding the age

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7 0
3 years ago
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Answer:

Step-by-step explanation:

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3 0
2 years ago
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