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Alona [7]
2 years ago
15

3(n+5)≥3n+8. help, please

Mathematics
1 answer:
SCORPION-xisa [38]2 years ago
4 0

Answer:

so you distrubute the 3 into the parenthesis and you then get 3n+15 is greater than or equal to 3n+8 then you subtract the 3n from the right side from the 3n on the left side and you are left with 15 is greater than or equal to 8

Step-by-step explanation:

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Solve each of the following equations for xx using the same technique as was used in the Opening Exercise.
devlian [24]

Answer:

The solve of this equation is X = 4,06

Step-by-step explanation:

To solve this formula:

2 ( X² - 16) = 1

You must use the distributive law of multiplication, thus:

2X² - (16×2) = 1

2X² - 32 = 1

2X² = 1 + 32

X² = 33/2

X² = 16,5

X = √16,5

X ≈ 4,06

Thus, the solution of this equation is:

<em>X ≈ 4,06</em>

<em></em>

I hope it helps!

7 0
3 years ago
a tower casts a shadow 7 m long a vertical stick casts a shadow 0.6 m long if the stick is 1.2 m high how high is the tower
dedylja [7]
The tower is 14 meters high.

Please mark as brailiest answer if you can.
4 0
3 years ago
$8,000 is invested in two different accounts earning 3% and 4% interest. If the two accounts earn a total of $295 in interest ho
Allisa [31]
You can take 8,000 and times it by 0.03. your answer is 2,500
4 0
3 years ago
Find the gcf and lcm of 20x^2y^3 60x^3y^2| 40xy^2
LenaWriter [7]
Gcf is the grouping of all the factors common to both groups
lcm is a group of all the factors that has all the elements of both groups

factor
20x^2y^3=2*2*5*x*x*y*y*y
60x^3y^2=2*2*3*5*x*x*x*y*y
40xy^2=2*2*2*5*x*y*y

the GCF=2*2*5*x*y*y=20xy^2
the LCM=2*2*2*3*5*x*x*x*y*y*y=120x^3y^3
7 0
3 years ago
lynn, jude and anne were given the function f(x)=-2x^2+32, and they were asked to find f(3). lynns answer was 14, judes answer w
AfilCa [17]
The only thing we need to here to find who is correct is evaluate the function f(x)=-2 x^{2} +32 at x=3. To do that we are going to replace x with 3 in the function:
f(x)=-2 x^{2} +32
f(3)=-2 (3)^{2} +32
f(3)=-2 (9) +32
f(3)=-18+32
f(3)=14

We can conclude that Lynn is correct. f(3) is indeed 14.
6 0
3 years ago
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