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Novosadov [1.4K]
3 years ago
6

Please help me! I'll give brainliest.

Mathematics
1 answer:
pochemuha3 years ago
3 0

Answer:

2.166666666666667

Step-by-step explanation:

0 + 1 + 1 + 3 + 4 + 4 = 13

13 divided by 6 = 2.166666666666667

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ABC is an eqilateral triangle with sides 10cm find the length of the prependicular from A to BC<br>​
il63 [147K]

All sides are equal in an equilateral triangle and the perpendicular bisects the side too.

so BC will be bisected and the segments be 5 each.

you can use Pythagoras theorem to find the altitude length, hypotenuse will be one side of the triangle.

5^2+h^2=10^2

$h^2=100-25=75$

$h=\sqrt{75}=5\sqrt3$

7 0
3 years ago
Math pls I need help
diamong [38]

Answer:

24

Step-by-step explanation:

First of all to check whether a number is divisible by 3 or not. We have to add the numbers and if the result is divisible by 3. Our number is divisible by 3 (no doubt). So 72 (7+2=9 is divisible by 3) ÷3 = 24

6 0
3 years ago
Julio says, "If you subtract 19 from my number and multiply the difference by - 7, the result is - 28." What is Julio's number?
ra1l [238]

Answer:

23

Step-by-step explanation:

Basically I did it backwards & opposites:

-28 divided by -7 = 4

4 + 19 = 23

I checked btw and it worked.

4 0
2 years ago
Evaluate f(t)=-2t2+ 1 for f(-3).
podryga [215]

Answer:

7

Step-by-step explanation:

First, plug-in f(-3) into t in the function:

f(-3)=-2(-3) +1

Second, multiply -2 and -3 to get 6:

f(-3)=-2(-3)+1⇒f(-3)=6+1

Third, add 6 and 1 to get your answer:

f(-3)= 6+1⇒f(-3)=7

3 0
3 years ago
to troubleshoot a problem in a complex computer system you need to seek help from a ____ team. ( tech)
ioda
Here you need an adjective of the given word (Tech), so the answer is technical.
7 0
3 years ago
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