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Dvinal [7]
3 years ago
11

3(x-4)+2(×+1) I need help

Mathematics
1 answer:
Ket [755]3 years ago
3 0

Answer:

Simplify:

5x - 10

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A piece of string 25 1/2 inch long will be cut into 3/4 inches pieces how many pieces will there be
weqwewe [10]
25.5/0.75 = 34 Pieces.

Hope this has helped.
6 0
3 years ago
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What 2 numbers are factors of 18?
WITCHER [35]

Factors are the numbers you multiply together to get given number.

All possible factorizations of number 18 by two factors are:

  1. 18=1·18;
  2. 18=2·9;
  3. 18=3·6.

Answer: 1 and 18, 2 and 9, 3 and 6.

4 0
3 years ago
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What did I do wrong so I don’t do it again on the test
denpristay [2]

Answer:

nothing

Step-by-step explanation:

all of them seem to be right. if you need practice work on alternate interior angles, exterior angles

8 0
2 years ago
Let X denote the time in minutes (rounded to the nearest half minute) for a blood sample to be taken. The probability mass funct
Basile [38]

This question is incomplete, the complete question is;

Let X denote the time in minutes (rounded to the nearest half minute) for a blood sample to be taken. The probability mass function for X is:

x     0       0.5       1       1.5       2       2.5

f(x)  0.1     0.2     0.3    0.2     0.1       0.1

determine;

a) P( X < 2.5 )

B) P( 0.75 < X ≤ 1.5 )

Answer:

a) P( X < 2.5 ) = 0.9

b) P( 0.75 < X ≤ 1.5 ) = 0.5

Step-by-step explanation:

Given the data in the question;

The probability mass function for X is:

x     0       0.5       1       1.5       2       2.5

f(x)  0.1     0.2     0.3    0.2     0.1       0.1

a) P( X < 2.5 )

P( X < 2.5 ) = p[ x = 0 ] + p[ x = 0.5 ] + p[ x = 1 ] + p[ x = 1.5 ] + p[ x = 2 ]

so

P( X < 2.5 ) = 0.1 + 0.2 + 0.3 + 0.2 + 0.1

P( X < 2.5 ) = 0.9

b) P( 0.75 < X ≤ 1.5 )

P( 0.75 < X ≤ 1.5 ) = p[ x = 1 ] + p[ x = 1.5 ]

so

P( 0.75 < X ≤ 1.5 ) = 0.3 + 0.2

P( 0.75 < X ≤ 1.5 ) = 0.5

3 0
3 years ago
Find the value of x to the nearest degree. <br><br>A. 35 <br>B. 28 <br>C. 51 <br>D. 55
user100 [1]

Answer:

A

Step-by-step explanation:

First, we are already given the sides adjacent and opposite to ∠x. Therefore, we can use the tangent function. Recall that:

\tan(x)=opp/adj

The opposite side is 20 while the adjacent side is 14.

Plug in the numbers. Use a calculator:

\tan(x)=20/14=10/7\\x=\tan^{-1}(10/7)\\x\approx55.0080\textdegree\approx55\textdegree

Edits: Improved Answer. Removed Wrong Answer.

8 0
4 years ago
Read 2 more answers
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