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ss7ja [257]
3 years ago
6

What is the solution 2x-y=4 -4+2y=-8

Mathematics
2 answers:
professor190 [17]3 years ago
8 0
Are these connected or two different equation
miv72 [106K]3 years ago
6 0

Answer:

x= −1 /2  , y−4

Step-by-step explanation:

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What is the volume of the pyramid?
cluponka [151]

Answer:

112.2

Step-by-step explanation:

6 0
3 years ago
A box contains four cards: One card is black on both sides, one card is red on both sides and two cards are black on one side an
allochka39001 [22]

Answer:

Step-by-step explanation:

A box contains four cards: One card is black on both sides, one card is red on both sides and two cards are black on one side and red on the other side. One card is selected at random and you can see only one side.i) If the side you see is black, what is the probability that the other side is black?ii) If the side you see is black, what is the probability that the other side is red?

Given that:

Number of cards = 4

x = Black on both sides = 1

y = Red on both sides = 1

z = Black on one side, red on one side = 2

.i) If the side you see is black, what is the probability that the other side is black = b

Probability of black

P(x) = 1/4 ; p(b|x) = 1

P(y) = 1/4 ; p(y|x) =

8 0
3 years ago
Consider a circle that has a circumference of 28/3.14 centimeters. What is the area of this circle? Answer fast plz also can you
bija089 [108]

Answer:

A=6.33\ cm^2

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The circumference of a circle is equal to

C=2\pi r

we have

C=\frac{28}{3.14}\ cm

\pi=3.14

substitute the values

\frac{28}{3.14}=2(3.14)r

r=\frac{28}{19.7192}\ cm

r=1.42\ cm

step 2

Find the area of the circle

The area of the circle is equal to

A=\pi r^{2}

substitute the values

A=(3.14)(1.42)^{2}

A=6.33\ cm^2

7 0
4 years ago
The surface area of the top surface of the water in a circular swimming pool is about 188 square feet. Estimate the radius of th
Vera_Pavlovna [14]
It's about 206 square feet
4 0
4 years ago
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X ÷ -6 = 10 what is x?​
Ostrovityanka [42]

Answer:

x=-60

Step-by-step explanation:

convert to  x over -6  =10

multiply both side by -6, write as x(-6) over -6= 10(-6)

simplify making x=-60

3 0
3 years ago
Read 2 more answers
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