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shtirl [24]
3 years ago
12

Combine like terms: 34z-7+15z

Mathematics
1 answer:
yanalaym [24]3 years ago
7 0

Answer:

49z - 7

Step-by-step explanation:

like term are having same variable and power.

By these explanation 34z+15z are added and -7 is keep as it is

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Which type of individuals within a species is most likely to survive and reproduce.
nekit [7.7K]

Answer:

B.

Step-by-step explanation:

if smart, they can hide

5 0
2 years ago
A population of bacteria is changing exponentially according to the function below. How can you describe the bacteria population
Hitman42 [59]
A, it's always positive because B(0) = 400
C, the population is growing. you can tell because the base is the rate of growth 1.4 > 1
3 0
3 years ago
List the first three terms of this sequence: an = 3 • 5n – 1
Nataly [62]

Answer:

1st term = 14

2nd term = 29

3rd term = 44

Step-by-step explanation:

1st term = 3 x (5 x 1) - 1

             = 3 x 5 - 1

             = 15 - 1 =  14

2nd term = 3 x (5 x 2) - 1

               = 3 x 10 - 1

               =30 - 1 = 29

3rd term = 3 x (5 x 3) -1

               = 3 x 15 - 1

               = 45 - 1 = 44

5 0
3 years ago
group of friends wants to go to the amusement park. They have $366.50 to spend parking and admission. Parking is $19, and ticket
Lostsunrise [7]
Step 1:
Subtract $19 from total
366.50 - 19 = 347.5

Step 2:
Divide this total by the ticket price
347.50 / 34.75 = 10

Step 3:
You have your answer
10 people can go to the amusement park
5 0
3 years ago
Rickey has been commissioned to paint a mural that is allowed to have an area of 50 square meters. To make the rectangle shape o
Leno4ka [110]

Answer:

12.808 meter is the length should Rickey use for the mural.

Step-by-step explanation:

Area of the mural = A = 50 m^2

Length of the mural = l

Width of the mural = w

l = 5 + 2w

Area of the rectangle = l × w

A=(5+2w)\times w

50 m^2=5w+2w^2

2w^2+5w-50=0

Solving above equation with the help of Completing squares method:

(\sqrt{2}w)^2+2\times \sqrt{2}w\times \frac{5}{2\sqrt{2}}+(\frac{5}{2\sqrt{2}})^2-50=(\frac{5}{2\sqrt{2}})^2

(a+b)^2=a^2+b^2+2ab

(\sqrt{2}w+\frac{5}{2\sqrt{2}})^2=(\frac{5}{2\sqrt{2}})^2+50

(\sqrt{2}w+\frac{5}{2\sqrt{2}})^2=\frac{25}{8}+50

(\sqrt{2}w+\frac{5}{2\sqrt{2}})^2=\frac{425}{8}

(\sqrt{2}w+\frac{5}{2\sqrt{2}})=\pm\sqrt{\frac{425}{8}}

w = 3.904 m (accept)

w = -6.404 m (reject)

l = (5 + 2w)m = 5 + 2 × (3.904) m= 12.808 m

12.808 meter is the length should Rickey use for the mural.

3 0
3 years ago
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