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s2008m [1.1K]
2 years ago
10

I'm so lost on the second to last question. Can anyone help?

Mathematics
1 answer:
Elena-2011 [213]2 years ago
6 0

Answer: 25

Step-by-step explanation:

The angles add to 90 degrees, so:

2(23)-?+3(23)=90\\115-?=90\\?=25

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Subtract the following complex numbers: (4+4i)-(13+17i) ??
Lady bird [3.3K]

Before combining the real parts and the imaginary parts, line them up vertically as follows:

 4   +   4i

-13   -  17i

--------------            Now add up each column.

 -9 - 13i   (Answer A)

6 0
3 years ago
Read 2 more answers
I need help! please is expression equivalent
nikitadnepr [17]

No the value of functions are not same .

What is function in math?

  • A quantitative expression, rule, or law that describes the link between an independent variable and a dependent variable (the dependent variable).
  • In mathematics, functions occur widespread, and they are essential for defining physical links in the sciences.
  • A function is a type of rule that generates one output for a single output.
  • This is represented by the equation y=x2. Any inputs for x result in an output for y. Given that x is the input value, we would state that y is a result of x.

  - 5 × ( -5)⁻⁹  =  -5 ×  1/-5⁹  ⇒ 1/5⁸  = 1/390625

[ -5 × (-5)]⁻⁹ = [25]⁻⁹  = 1/25⁹ = 1/3814697265625

No the value of functions are not same .

Learn more about function

brainly.com/question/12431044

#SPJ13

6 0
1 year ago
A farmer sells 9.9 kilograms of pears and apples at the farmer's market. of this weight is
ivanzaharov [21]

The given question is incomplete. The complete question is:

A farmer sells 9.9 kg of pears and apples at the farmers market. 3/4 of this weight is pears,and the rest is apples.how many kilograms of apples did she sell at the farmers market.

Answer: The farmer sells 2.475 kg of apples.

Step-by-step explanation:

Given : Total weight of pears and apples = 9.9 Kg

\frac{3}{4} of the total weight is pears

Hence, weight of pears = \frac{3}{4}\times 9.9=7.425 Kg

Therefore weight of apples = Total weight - weight of pears = (9.9 -7.425) = 2.475 Kg  

5 0
3 years ago
Chips suppose a computer chip manufacturer rejects 2% of the chips produced because they fail presale testing.
Artyom0805 [142]
(a) P( fifth one is bad)  = P( first 4 are OK) * P(5th is bad)

= (0.98)^4 * 0.02 =  0.0184   or 1.84%

(b)  this will be (0.98)^10 =  81.70%



4 0
3 years ago
When the coordinates (1, 1), (4, 4), (7, 1), and (4, −2) are joined, which shape is formed? (5 points)
Citrus2011 [14]

well, if we try to plot and conect them, we will get square, so the answer is d

4 0
3 years ago
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