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3 years ago

A six-sided number cube is rolled twice.

Mathematics

1 answer:

GuDViN [60]3 years ago

8 0

$|\Omega|=6^2=36\\|A|=3\cdot2=8\\\\P(A)=\dfrac{8}{36}=\dfrac{2}{9}$

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3x+4+5x+10 simplify combining like terms

saveliy_v [14]

Answer:

$\Large \boxed{8x+14}$

Step-by-step explanation:

$3x+4+5x+10$

Grouping the like terms.

$(3x + 5x) + (4+10)$

Combining the like terms.

$8x+14$

8 0

4 years ago

Read 2 more answers

A metal worker has several 1-kilogram bars of a metal alloy that contain 23% copper and several 1-kilogram bars that contain 79%

astraxan [27]

Answer:

30 each of 23% bars and 18 each of 79% bars

Step-by-step explanation:

If x is the number of 1 kg 23% copper bars, and y is the number of 1 kg 79% copper bars, then:

x + y = 48

0.23x + 0.79y = 0.44(48)

Substituting and solving:

0.23x + 0.79(48-x) = 0.44(48)

0.23x + 37.92 - 0.79x = 21.12

16.8 = 0.56x

x = 30

y = 48 - x

y = 18

You need 30 each of 23% bars and 18 each of 79% bars.

4 0

4 years ago

I need someone to explain it on paper plzz it’s a time test

zzz [600]

Yes it’s a right angle because it has a 90 degree angle. In order for a triangle to be a right angle it needs to have one 90 degree angle. Hope this helps!

3 0

3 years ago

Evaluate the line integral, where C is the given curve. (x + 4y) dx + x2 dy, C C consists of line segments from (0, 0) to (4, 1)

zubka84 [21]

Parameterize the line segments (call them $C_1$ and $C_2$ , respectively, by

$\vec r_1(t)=(1-t)(0,0)+t(4,1)=(4t,t)$

$\vec r_2(t)=(1-t)(4,1)+t(5,0)=(4+t,1-t)$

both with $0\le t\le1$ . Then

$\displaystyle\int_C(x+4y)\,\mathrm dx+x^2\,\mathrm dy$

$=\displaystyle\int_0^1\bigg((4t+4t)(4)+(4t)^2(1)\bigg)\,\mathrm dt+\int_0^1\bigg((4+t+4(1-t))(1)+(4+t)^2(-1)\bigg)\,\mathrm dt$

$=\displaystyle\int_0^115t^2+21t-8\,\mathrm dt=\boxed{\frac{15}2}$

6 0

3 years ago

Which of the following is the sum of the numbers if the mean of five number is 6

astra-53 [7]

Answer:

Step-by-step explanation:

you have to do 5+1 and then you will get 6

4 0

3 years ago