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Phantasy [73]
3 years ago
5

Find -1 1/5 + (- 3/5)​

Mathematics
1 answer:
Shkiper50 [21]3 years ago
6 0

Answer:

-14/5

Step-by-step explanation:

+ - you have to remove the plus sign so it just becomes -

then you get,

-11/5 - 3/5 = -14/5

You might be interested in
whats another way to write (s-6)(s+1) when s represents the side of a square and the equation represents the area of a rectangle
viktelen [127]

The another way to write (s - 6)(s + 1) is s² - 5s - 6

Step-by-step explanation:

Let us revise how multiply two binomial (a + b)(x + y)

  • Multiply the 1st terms
  • Multiply the 2nd terms
  • Multiply the nears and extremes, where nears are the 2nd term of first bracket and 1st term in the second bracket, the extremes are the 1st term in the first bracket and the 2nd term in the second bracket
  • Add the like terms if necessary

∵ The area of the square = (s - 6)(s + 1)

- To find the another way multiply the two brackets

∵ s × s = s²

∵ -6 × 1 = -6

∵ -6 × s = - 6s ⇒ nears

∵ s × 1 = s ⇒ extremes

- The terms - 6s and s are like terms, then add them

∵ - 6s + s = - 5s

∴ (s - 6)(s + 1) = s² - 5s - 6

∴ The area of the square = s² - 5s - 6

The another way to write (s - 6)(s + 1) is s² - 5s - 6

Learn more:

You can learn more about the binomials in brainly.com/question/2334388

#LearnwithBrainly

8 0
3 years ago
ALGEBRA HELP PLZZZZZZZZZ
Elan Coil [88]
1st transformation:
A'=(-3,-4)\\
B'=(-7,-4)\\
C'=(-3,-8)\\
D'=(-7,-8)

2nd transformation:
When you rotate a point around the origin by 180 degrees, you change both coordinates to opposite values.
A''=(3,4)\\ B''=(7,4)\\ C''=(3,8)\\ D''=(7,8)

5 0
3 years ago
A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found tha
egoroff_w [7]

Answer:

Between 21 years and 75 years

Step-by-step explanation:

Given that a real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 48 years old, with a standard deviation of 9 years.

X the ages of home buyers is N(48, 9)

a) 30\leq x\leq 66\\|x-48|\leq 18\\|x-48|\leq 2\sigma

Hence using Cheby chev inequality

P(|x-48|\leq 2\sigma)\geq 1-\frac{1}{2^2} \\=0.75

b) 25.5\leq x\leq 70.5\\|x-48|\leq 22.5\\|x-48|\leq 1.5\sigma

P(|x-48|\leq 1.5\sigma)\geq 1-\frac{1}{1.5^2} \\=0.556

c) Using normal distribution we have

P(|x-48|\leq 2\sigma)=0.95

d) z value is 2.97

Hence x lies between

(48-9*2.97, 49+9*2.97)\\=(21.27,74.73)

Between 21 years and 75 years

4 0
3 years ago
2.) Find the value of each trigonometric ratio:​
tensa zangetsu [6.8K]

Answer:

SinA = 40/50

Step-by-step explanation:

I think it's just asking if you understand the trig ratios. You aren't really solving for anything.

SinA is 40 over 50 because 40 is opposite of <A and 50 is the hypotenuse.

Then, use the trig ratios to figure out the other problems.

7 0
3 years ago
Your vacation cabin on the lake has three rooms. The bathroom is 12' X 6', the bedroom is 14' X 18' and the great room is 20' X
GarryVolchara [31]

Answer: 9240\ ft^3

Step-by-step explanation:

Given

Dimension of the bathroom is 12'\times 16'

Dimension of the bedroom is 14'\times 18

Dimension of the great room is 20'\times 30'

Height of the ceiling is h=10'

Total area of the cabin

\Rightarrow A=12\times6+14\times 18+20\times 30\\\Rightarrow A=72+252+600\\\Rightarrow A=924\ ft^2

Volume of the cabin is V=A\times h

\Rightarrow V=924\times 10\\\Rightarrow V=9240\ ft^3

8 0
2 years ago
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