3 years ago

What is (-1/4) - (-3/5)?

Mathematics

1 answer:

Nostrana [21]3 years ago

6 0

.35 Hope this helps :)

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2y-2z= -4<br> - 4y+2z = -2<br> x+4y-z=-5

Bumek [7]

Answer:

(-12,3,5)

x=-12,y=3.z=5

Step-by-step explanation:

6 0

3 years ago

3х + 2y = 14<br> 3х - 2y = 10<br> Solve using elimination pls help me guys

AURORKA [14]

Step-by-step explanation:

3х + 2y = 14

3х - 2y = 10

6x=24

x=4

3×4+2y=14

12+2y=14

2y=14-12

2y=2

y=1

8 0

3 years ago

The _______ is used to express absolute temperatures in the English system of measurement.

Irina-Kira [14]

For america it's Fahrenheit
for most of the rest of the world it is Celsius

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3 years ago

assume the probability of having a boy or a girl is the same. what is the probability of have a boy then a girl then another gir

NNADVOKAT [17]

Answer:

$\dfrac{1}{8}$

Step-by-step explanation:

If the probability of having a boy or a girl is the same, then

the probability of having a boy = a probability of having a girl = 1/2.

Let B denote boy and G denote the girl.

The sample space of having three children is:

BBB, BBG, BGB, GBB, BGG, GBG, GGB, GGG.

The probabilities of each of those events is

$Pr(BBB)=Pr(BBG)=Pr(BGB)=Pr(GBB)=\\ \\=Pr(BGG)=Pr(GBG)=Pr(GGB)=Pr(GGG)=\\ \\=\dfrac{1}{2}\cdot \dfrac{1}{2}\cdot \dfrac{1}{2}=\dfrac{1}{8}.$

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4 years ago

Help Please Pythagorean Theorem

aev [14]

Answer:

1. x = 15

2. x = 26

3. x = 7.6157731059 (you can round this answer to 8 or 7.6)

4. x = 11.7

5. x = 25

6. x = 1.4

7. x = 22.5

8. x = 38.4

9. x = 10.3 v = 5.8

For some of them, I had to use estimation.

I used this formula : a^2 + b^2 = c^2

8 0

3 years ago