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kolezko [41]
3 years ago
7

Please please please help

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0

Answer: D

Step-by-step explanation: solve it by substitution

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Hey Algebra 1 Answer Key with notes.pdf go on that and there are the anwers and the answer key :)
Savatey [412]

Answer:

Ahh... Tsym for that. But what is the link of that website.

Step-by-step explanation:

Please give me brainliest :)

4 0
3 years ago
A recipe calls for 112 cups of mayonnaise and 38 cups of pecans. How much mayonnaise should be used if 1 cup of pecans is used?
Sauron [17]

Answer:

3 cups of mayonnaise will be required for 1 cup of pecan.

Step-by-step explanation:

A recipe calls for 112 cups of mayonnaise and 38 cups of pecans.

By using unitary method,

∵ 38 cups of pecans require mayonnaise = 112 cups

∴ 1 cup pecans requires mayonnaise = \frac{112}{38} cups

                                                             = 2.95 cups

                                                             ≈ 3 cups

Therefore, 3 cups of mayonnaise will be required for 1 cup of pecan.

4 0
3 years ago
The population of a type of local frog can be found using an infinite geometric series where a one equals 84 and the common rati
kodGreya [7K]
A=84 and r=1/5

Since r, the common ratio squared is less than one, the sum will converge to a limit.  Rule:  if  r^2<1 infinite series converges, otherwise it diverges.

Since the sum of any geometric sequence is:

s(n)=a(1-r^n)/(1-r)

And if r^2<1, (1-r^n) becomes 1-0=1 as n approaches infinity.

So whenever r^2<1 the sum of the infinite series is just:

s(n)=a/(1-r)

Since a=84 and r=1/5 this infinite series has a sum of:

s(n)=84/(1-1/5)

s(n)=84/(4/5)

s(n)=5(84)/4

s(n)=105
5 0
3 years ago
Which expression is equivalent to (3 + 5i)2?
castortr0y [4]

Answer:

Step-by-step explanation:

-16+30i

5 0
3 years ago
Find the area and the circumference of a circle with a diameter of 17cm
frosja888 [35]

Answer:

Step-by-step explanation:

d = 17 cm

r = 17/2 = 8.5 cm

Circumference of circle = πd

                                       = 3.14 * 17

                                       = 53.38 cm

Area of circle = πr²

                       = 3.14 * 8.5 * 8.5

                       = 226.865 cm²

6 0
3 years ago
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