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Harlamova29_29 [7]
3 years ago
8

Solve this exercise using the fact that the sum of the measures of the three angles of a triangle is 180.

Mathematics
1 answer:
den301095 [7]3 years ago
7 0

Answer:

X=70

Step-by-step explanation:

70 + 75 + 35 =180

x + x+5 + x-35

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X is a normally distributed random variable with mean equal to 1.234 and variance equal to .336. what is the probability that x
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38 because the x is normal
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Find the square root of the fraction 64/100
kirill [66]
The simplified answer is 4/5
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Read 2 more answers
Can someone help me out
Sophie [7]

Firstly, you want to multiply (f^4)^2. \frac{2*f^8*f^2}{8f^{12}}


Next, multiply everything on the numerator. \frac{2f^{10}}{8f^{12}}


Next, divide. \frac{2f^{10}}{8f^{12}}=\frac{1}{4} f^{-2}


Now remember that f^-2 = (1/f^2), so just convert the negative powered exponent to that, and your answer will be \frac{1}{4f^2}

6 0
3 years ago
Find two whole numbers with a sum of 15 and a product of 54
likoan [24]
A+b=15----(1)
a*b=54----(2)

(1) a=15-b ----(3)

put(3) in(2)

(15-b)*b=54
15b-b^2=54
b^2-15b+54=0
(b-9)(b-6)=0
so b=9 or b=6

if b=9 then a=15-9=6
if b=6 then a=15-6=9

answer two numbers are 6 and 9
3 0
4 years ago
One canned orange juice is 25% orange juice another is 5% orange juice. How many liters of each should be mixed together in orde
Cerrena [4.2K]

Answer:

X = \frac{1.6 - 0.05Y}{0.25}= 6.4 -0.2 Y  (3)

Replcaing equation (3) into equation (2) we got:

0.75(6.4 -0.2 Y) +0.95 Y = 18.4

And solving for Y we got:

4.8 -0.15 Y +0.95 Y = 18.4

0.8 Y = 13.6

Y = 17

And solving for X from equation (3) we got:

X= 6.4 -0.2*17 = 3

So we need 3L of orange juice with 25% of concentration and 17 L of orange juice with 5% of concentration

Step-by-step explanation:

For this problem we can work with the concentration of water and orange juice.

Let X the amount for the orange juice with 25% content and Y the amount for the orange juice with 5% of content

Using the concentration of orange juice we have:

0.25 X + 0.05 Y = 20*0.08  (1)

And for the water we have:

0.75 X + 0.95Y = 20*0.92  (2)

If we solve for X from equation (1) we got:

X = \frac{1.6 - 0.05Y}{0.25}= 6.4 -0.2 Y  (3)

Replcaing equation (3) into equation (2) we got:

0.75(6.4 -0.2 Y) +0.95 Y = 18.4

And solving for Y we got:

4.8 -0.15 Y +0.95 Y = 18.4

0.8 Y = 13.6

Y = 17

And solving for X from equation (3) we got:

X= 6.4 -0.2*17 = 3

So we need 3L of orange juice with 25% of concentration and 17 L of orange juice with 5% of concentration

7 0
3 years ago
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