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Anon25 [30]
3 years ago
6

To 3 d.p.

Mathematics
1 answer:
BartSMP [9]3 years ago
7 0

Answer:

12 cm (I don't understand bro):(

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3z squared minus 6z if z = 5
max2010maxim [7]

Answer:

45

Step-by-step explanation:

Given

3z² - 6z ← substitute z = 5 into the expression

= 3(5)² - 6(5)

= 3(25) - 30

= 75 - 30

= 45

4 0
3 years ago
Read 2 more answers
There are 1,000 fish in a lake. Each year the population declines by 15%, but afterward, the lake is restocked with 500 aditiona
KatRina [158]
We begin with 1,000 fish in a lake.
Each year the population declines to 15%
Then they put back 500 fish in the lake.

The equation: (1000 * .85) +500
4 0
3 years ago
I need help with #7 ?!!! <br> Btw #6 is correct
Musya8 [376]

Choice C for problem 6 is correct. The two angles (65 and 25) add to 90 degrees, proving they are complementary angles.

===========================================

The answer to problem 7 is also choice C and here's why

To find the midpoint, we add up the x coordinates and divide by 2. The two points A(-5,3) and B(3,3) have x coordinates of -5 and 3 respectively. They add to -5+3 = -2 which cuts in half to get -1. This means C has to be the answer as it's the only choice with x = -1 as an x coordinate.

Let's keep going to find the y coordinate of the midpoint. The points A(-5,3) and B(3,3) have y coordinates of y = 3 and y = 3, they add to 3+3 = 6 which cuts in half to get 3. The midpoint has the same y coordinate as the other two points

So that is why the midpoint is (-1,3)

7 0
3 years ago
Please help i don't understand. will mark brainliest. answer the both questions
vladimir1956 [14]

Answer:

1-Undefined

2-Positive

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Mary and her brothers are planning an anniversary party for their parents. The location they are planning to use has a base cost
Lady bird [3.3K]

820

Step-by-step explanation:

because 800+20 is 820

5 0
2 years ago
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