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11Alexandr11 [23.1K]
3 years ago
14

What is the mean of the set 90, 82, 88, 78, 93,

Mathematics
2 answers:
Georgia [21]3 years ago
8 0
You need to add all of your numbers together, then divide by the how many numbers you had before you added them together. You should get 431.
vekshin13 years ago
5 0
431 would be the answer hope this helps
You might be interested in
If a rectangler has an area of 34 and the width is half the length what are the length and the width
pav-90 [236]
A=LW,

W=L/2, L=2W so:

A=(2W)W

A=2W^2 and A=34 so:

2W^2=34

W^2=17

W=√17, and since L=2W

L=2√17

So the length is 2√17 and the width is √17

(length≈8.25 and width≈4.12 if you wanted approximations...)
3 0
3 years ago
What is (-3 3/4) - (2 1/4)?
lisabon 2012 [21]

Answer: -6

Step-by-step explanation:

Rewrite the expression:

-3\frac{3}{4}-2\frac{1}{4}

Factor out the negative:

-3\frac{3}{4}-2\frac{1}{4}

-(3\frac{3}{4} +2\frac{1}{4})

Rewrite the sum:

-(3\frac{3}{4} +2\frac{1}{4})

-((3+2)+(\frac{3}{4}+\frac{1}{4}))

Calculate the sum:

-((3+2)+(\frac{3}{4}+\frac{1}{4}))

-(5+1)

Solve:

-(5+1)

-6

Please mark brainliest if this helped you :)

3 0
3 years ago
Solve for x my homies and whoever answers it i just wanna say thank you my dude.
lara [203]
The answer is A) x=-1
4 0
3 years ago
I NEED HELP ASAP PLS PLS
masha68 [24]

Answer:

Mia: 90 and Isabella: 30

Step-by-step explanation:

Mia: 60 x 0.5 (50%) is 30

Isabella: 60 x 1.5 (150%) is 90

6 0
3 years ago
Please help me solve this for 15 points! <br><br>-x2 + 4x - 54 = 0​
Mazyrski [523]

Answer:

x1 =2-5i*sqrt(2)

x2 =2+5i*sqrt(2)

Step-by-step explanation:

-x^2 +4x-54=0 (quadratic equation)

a=-1, b=4, c=-54

x1=(-b+sqrt(b^2-4ac))/2a

x1=(-4+sqrt(4^2 - 4*(-1)(-54))/2*(-1)

x1=(-4+sqrt(16-216))/(-2)

x1 =(-4+sqrt(-200))/(-2)

x1 =(-4+sqrt(200i^2))/(-2) i^2=-1

x1 =(-4+sqrt(100*2*i^2))/(-2)

x1 =(-4+10i*sqrt(2))/(-2)

x1 =2-5i*sqrt(2)

x2 =(-b-sqrt(b^2-4ac))/2a

x2 =(-4-10i*sqrt(2))/(-2)

x2 =2+5i*sqrt(2)

7 0
4 years ago
Read 2 more answers
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