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Nuetrik [128]
3 years ago
13

3/38-3/7 2+1/35 3/56+3/2

Mathematics
1 answer:
prohojiy [21]3 years ago
4 0

Answer:

87/56

Step-by-step explanation:

Simplify the following:

3/56 + 3/2

Put 3/56 + 3/2 over the common denominator 56. 3/56 + 3/2 = 3/56 + (28×3)/56:

3/56 + (28×3)/56

28×3 = 84:

3/56 + 84/56

3/56 + 84/56 = (3 + 84)/56:

(3 + 84)/56

3 + 84 = 87:

Answer:  87/56

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Triangle- interior angle<br> Please help !
sp2606 [1]

Answer:

x = 25

<B = 120 degrees

<C = 30 degrees

Step-by-step explanation:

Total angle measure of a triangle - 180 degrees

Add all the angles together to find the value of x

30 + 4x + 20 + x + 5 = 180

55 + 5x = 180

55 - 55 + 5x = 180 - 55

5x = 125

\frac{5x}{5} = \frac{125}{5}

x = 25

<B = 4(25) + 20

<B = 100 + 20

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7 0
4 years ago
Find the two values of k for which y(x)=ekx is a solution of the differential equation
Travka [436]

Answer:

The 2 values of k are 3 and 6.

Step-by-step explanation:

If the given function  of y is a solution of the differential equation then it shall be able to satisfy it

Thus we have

y''-9y'+18y=0

Putiing y=e^{kx} in the above differential euation we get

\frac{d^2e^{kx}}{dx^2}-9\frac{de^{kx}}{dx}+18\cdot e^{kx}=0\\\\k^{2}e^{kx}-9k\cdot e^{kx}+18\cdot e^{kx}=0\\\\k^2-9k+18=0

Solving the above uadratic euation with the standard formula we get

k=\frac{-(-9)\pm \sqrt{(-9)^2-4\times 1\times 18} }{2}\\\\k_1=6\\\\k_2=3

3 0
4 years ago
Determine if the following event is mutually exclusive:
sp2606 [1]

Answer:

Ask yourself: "Can I roll a prime number and an odd number at the same time?"

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In terms of a venn diagram, mutually exclusive events have no overlapping shared region.Step-by-step explanation:

6 0
3 years ago
I just need help, *uploaded again*
Svet_ta [14]

Answer:

Your answer for the first one is B

Step-by-step explanation:

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3 years ago
Find the circumference
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31.42 \: cm

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5 0
3 years ago
Read 2 more answers
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