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LiRa [457]
3 years ago
6

Solve the following quadratic equations using completing the square x2 + 10x + 55 = 0

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
3 0
Is the “x2” supposed to be x squared?
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Find x and y on a 30 60 90 triangle number 9
worty [1.4K]

Answer:

x=12, y=12 \sqrt{3}

Step-by-step explanation:

Please see attached picture for full solution.

sinθ= opp/hyp

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7 0
3 years ago
Give a set of five integers, two positive and three negative, for which the mean, median, and mode are all -3
koban [17]
That's 5 integers...

Logic tells me that a number divided by 5 should be equal to -3. -15/5 is in fact equal to -3.

Let's find 5 integers (two positive and three negative) when added up together equal -15.

-14, -3, -3, 2, 3.

[(-14)+(-3)+(-3)+2+3]/5 = (-15)/5 = -3

Mean = -3

----------

Now let's put these numbers in order, from lowest to highest - then pick out the middle value...

-14, -3, [-3], 2, 3

The median turns out to be -3.

------------

Let's look at the numbers once again...

-14, -3, -3, 2, 3

It turns out that -3 appears the most, therefore -3 is the mode too.
7 0
3 years ago
please help me with it and dont just put random letters cause i dont know why u do it its not like u can buy a house with these
BartSMP [9]

Answer:

v=432cm

sA=144cm

Step-by-step explanation:

1)))

v=w*d*h

v=3*9*16

v=432cm

2)))

sA=h*w

sA=16*9

sA=144cm

6 0
2 years ago
Read 2 more answers
Arnold deposited $732.19 in a savings account that earns 2.7% simple interest. What is Arnold's account balance after seven year
liq [111]

Answer:

Step-by-step explanation:

$870.57

use equation total = Principal(1 + rate*time)

3 0
3 years ago
Round 1964.15569 to the nearest​ hundredth, tenth,​ one, ten, and hundred.
Umnica [9.8K]
1964.16 is hundredth
1964.2 is tenth
1964 is one
1960 is ten 
2000 is hundred
6 0
3 years ago
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