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3 years ago

If x = 4 and y = 3,then xy - 2x =?

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

6 0

4*3-2*4= 12-8=

The answer is 4
Substitute

wariber [46]3 years ago

5 0

X = 4 Y=3

You have to plug in the values

xy - 2x = ?
(4)(3) - 2(4) = 4

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Three components are randomly sampled, one at a time, from a large lot. As each component is selected, it is tested. If it passe

satela [25.4K]

Answer:

The probability of SFS and SSF are same, i.e. P (SFS) = P (SSF) = 0.1311.

Step-by-step explanation:

The probability of a component passing the test is, P (S) = 0.79.

The probability that a component fails the test is, P (F) = 1 - 0.79 = 0.21.

Three components are sampled.

Compute the probability of the test result as SFS as follows:

P (SFS) = P (S) × P (F) × P (S)

$=0.79\times0.21\times0.79\\=0.131061\\\approx0.1311$

Compute the probability of the test result as SSF as follows:

P (SSF) = P (S) × P (S) × P (F)

$=0.79\times0.79\times0.21\\=0.131061\\\approx0.1311$

Thus, the probability of SFS and SSF are same, i.e. P (SFS) = P (SSF) = 0.1311.

7 0

4 years ago

Pls help meh... I need help

sertanlavr [38]

In a parallelogram, opposite angles are congruent and consecutive angles are supplementary.

3x - 15 = 2x + 24
3x - 2x = 24 + 15
x = 39 <===

6 0

3 years ago

Read 2 more answers

mrs carter teaches a total of 80 students. of the students that she teaches, 30% will go on a field trip to the art museum along

castortr0y [4]

32 ^^ I really hope this is right and helps xD

8 0

3 years ago

Read 2 more answers

Help me plzzzzz.....

AURORKA [14]

Set up the equation:

x=(3x-70)

0=2x-70

2x=70

x=35

Now to find LMN we plug it back in:

3(35)-70=35

Final answer: 35 degrees

4 0

4 years ago

By driving 8 mph faster than Bob, John can make a 230 mile trip in one half hour less. How fast does Bob drive on the trip? Roun

____ [38]

Answer: The speed of Bob is 56.8 km/hr.

Step-by-step explanation:

Let the speed of Bob be 'x'.

Let the speed of John be 'x-8'.

Distance covered = 230 miles

time = $1\dfrac{1}{2}=\dfrac{3}{2}\ hr$

According to question, we get that

$\dfrac{230}{x}-\dfrac{230}{x+8}=\dfrac{3}{2}\\\\230\dfrac{x+8-x}{x(x+8)}=\dfrac{3}{2}\\\\\dfrac{230\times 8}{x^2+8x}=\dfrac{3}{2}\\\\\dfrac{1840}{x^2+8x}=\dfrac{3}{2}\\\\1840\times 2=3x^2+24x\\\\3680=3x^2+24x\\\\3x^2+24x-3680=0\\\\x\approx 56.8\ km/hr$

Hence, the speed of Bob is 56.8 km/hr.

6 0

3 years ago