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3 years ago

50 points!! The value of the expression 7+3*2+(12-8)/ 2x4 is ___________

Mathematics

2 answers:

Nikolay [14]3 years ago

6 0

Answer: The answer is 13.5

Step-by-step explanation:

7+(3)(2)+

12−8

(2)(4)

=7+6+

12−8

(2)(4)

=13+

12−8

(2)(4)

=13+

(2)(4)

=13+

Elan Coil [88]3 years ago

3 0

Answer:

4(5+8)-(4*8)

Step-by-step explanation:

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Plz help me with my algebra

Rus_ich [418]

The answer is a(x)=x+3

3 0

3 years ago

Read 2 more answers

2. Four friends share 3 apples equally.

Slav-nsk [51]

Answer:

1/3

Step-by-step explanation:

Each friend gets 1/3 of an apple

5 0

3 years ago

A collection of five coins has a value of $1 and consists of dimes and

DENIUS [597]

For this case we propose a system of equations. We have to:

x: Let the variable that represents the number of dimes

y: Let the variable that represents the number of quaters

We know that:

One dime equals 10 cents, $0.10

A quater equals 0.25 cents, $0.25

According to the statement we have:

$x + y = 5\\0.10x + 0.25y = 1$

We multiply the first equation by -0.10:

$-0.10x-0.10y = -0.5$

We have the following equivalent system:

$-0.10x-0.10y = -0.5\\0.10x + 0.25y = 1$

We add the equations:

$-0.10x + 0.10x-010y + 0.25y = -0.5 + 1\\0.15y = 0.5\\y = \frac {0.5}{0.15}\\y = 3.33$

Approximately 3 quater coins

$x = 5-y = 5-3 = 2$

And two dimes

Answer:

3 quater

2 dimes

4 0

3 years ago

Thank you!!!!!!!!!!!!!!!

OverLord2011 [107]

Answer:

Binomial distribution requires all of the following to be satisfied:

1. size of experiment (N=27) is known.

2. each trial of experiment is Bernoulli trial (i.e. either fail or pass)

3. probability (p=0.14) remains constant through trials.

4. trials are independent, and random.

Binomial distribution can be used as a close approximation, with the usual assumption that a sample of 27 in thousands of stock is representative of the population., and is given by the probability of x successes (defective).

P(x)=C(N,x)*p^x*(1-p)^(n-x)

where N=27, p=0.14, and C(N,x) is the number of combinations of x items out of N.

So we need the probability of <em>at most one defective</em>, which is

P(0)+P(1)

= C(27,0)*0.14^0*(0.86)^(27) + C(27,1)*0.14^1*(0.86^26)

=1*1*0.0170 + 27*0.14*0.0198

=0.0170+0.0749

=0.0919

4 0

3 years ago

Plzzz help with all of the questions and plzZZZzZz show work I really need help I’m not understanding help with all the question

statuscvo [17]

Answer:

slope of EF= $\frac{5}{3}$

∠QSR=45°,

∠PTQ=90°

if RT=24

then SQ=48

square is always a rectangle

∠SUT=21°

Step-by-step explanation:

two line are perpendicular to each other if product of their slope equal to -1

$m_{1}\times m_{2}$ =-1

slope of HE= $m_1$ =- $\frac{3}{5}$

slope of EF= $m_2$

slope of EF=-1 $\frac{-5}{3}$ = $\frac{5}{3}$

slope of EF= $\frac{5}{3}$ answer

∠QSR=45°,

∠PTQ=90°

if RT=24

then SQ=48

square is always a rectangle

given ∠SUT=3x+6

∠RUS=5x-4

∠SUT=∠RUS

3x+6=5x-4

x=5

∠SUT=3x+6=15+6=21°

∠SUT=21°

5 0

3 years ago