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lesya [120]
3 years ago
7

Will give brainliest and extra pointssss ):

Mathematics
1 answer:
Stells [14]3 years ago
6 0

x^2 -3x+11=0

using the determinant

b^2-4ac

(-3)^2 -4(1)*11

9 -44

-36<0  it has no real solutions

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Ifx = 3(y+w)-1. what is the value of w in terms of x and y
Georgia [21]

Answer:

1/3x -y +1/3 = w

Step-by-step explanation:

x = 3y + 3w - 1

x - 3y + 1 = 3w

/3            = /3

1/3X - y + 1/3 = w

7 0
4 years ago
Solve each equation.Show work plz
Nadusha1986 [10]
29. 5/2× 2/5×=5/2×7  multiply the equation by the reciprocal of the coefficient 

x= 5/2×7/1 <span> reduce the numbers with 5,2. convert the expression into a fraction 
</span><span>
x= 5</span>×7/2×1
<span>
x= 35/2

32. a= 19/6


2 3/4a = 19 1/4               divide both sides of the equation by 1/4

2</span>×3a=19                              calculate the product <span>
</span>
6a=19                                    divide both sides by 6

a=19/6

6 0
3 years ago
in a survey of 93 resorts, it was found that 30 had a spa,39 had a childrens club,11 had a spa and children club, 9 had all thre
Semmy [17]

I think it might be 30

5 0
3 years ago
The length of a rectangle is measured as 370mm correct to 2 significant figures.
olga nikolaevna [1]

Answer:

UB: 375

Step-by-step explanation:

370mm to 2 sig figs..

UB: 375

LB:365

Please rate me 5 stars and thank me :)

5 0
4 years ago
Please help with this it's urgent!!! Please explain your answer and I will mark brainliest!!!
melomori [17]

Answer:

Step-by-step explanation:

reasons

2) vertical angles are congruent

4) SAS

8 0
3 years ago
Read 2 more answers
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