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Mariulka [41]
3 years ago
10

Answer this question attached please

Mathematics
1 answer:
shtirl [24]3 years ago
7 0

Answer:

30 degree

Step-by-step explanation:

sum of the interior angles of a hexagon=720degree

one angle of the hexagon=720/6=120degree

one angle of the rhombus=90 degree

therefore, x=120-90=30

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Brandy took 3 friends out for dinner. The cost of the meal was 46.15 she left the 20% tip what was the total cost including the
slega [8]

Answer: $55.35


Step-by-step explanation:

if the bill is $46.15, round it up to $46. Twenty percent of that is $9.20, found by moving the decimal point one place left. Add $9.20 to $46.15, and you get $55.35

i hope this is correct and it helps :)

8 0
3 years ago
What is 70 percent of 1872
uranmaximum [27]

Answer:

1310.4

Step-by-step explanation:

1872 x 0.7 = 1310.4

4 0
4 years ago
Read 2 more answers
75% of what is 96!!!!!!!!!????????
max2010maxim [7]
Its 72.. its just 75/100 = x/96 then use cross products to find out that 74(96)=100x then solve to get 72
4 0
4 years ago
For which k are the roots of k(x2+1)=x2+3x–3 real and distinct?
Ugo [173]

Answer:

The solution for k is the interval (-3.5,1.5)

Step-by-step explanation:

we have

k(x^{2}+1)=x^{2}+3x-3

kx^{2}+k=x^{2}+3x-3

x^{2}-kx^{2}+3x-3-k=0

}[1-k]x^{2}+3x-(3+k)=0

we know that

If the discriminant is greater than zero . then the quadratic equation has two real and distinct solutions

The discriminant is equal to

D=b^{2}-4ac

In this problem we have

a=(1-k)

b=3

c=-(3+k)

substitute

D=3^{2}-4(1-k)(-3-k)\\ \\D=9-4(-3-k+3k+k^{2})\\ \\D=9+12+4k-12k-4k^{2}\\ \\D=21-8k-4k^{2}

so

21-8k-4k^{2} > 0

solve the quadratic equation by graphing

The solution for k is the interval (-3.5,1.5)

see the attached figure

7 0
3 years ago
Alan invests some of his retirement savings in a fund earning 4% simple interest and invests twice as much in a fund earning 6%
Natalija [7]

Answer:

ok

Step-by-step explanation:

can you mark me as brainlist

6 0
3 years ago
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