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3 years ago

NEED ANSWER NOW

Mathematics

2 answers:

il63 [147K]3 years ago

8 0

Answer:

x>-1

Step-by-step explanation:

-2x +3 < 5

Subtract 3 from each side

-2x+3-3 < 5-3

-2x < 2

Divide each side by -2

Remember that flips the inequality

-2x/-2 > 2/-2

x>-1

Romashka [77]3 years ago

7 0

Answer: x > -1

===========================================

Work Shown:

-2x+3 < 5

-2x+3-3 < 5-3 ...... subtract 3 from both sides

-2x < 2

-2x/(-2) > 2/(-2) ..... divide both sides by -2; see note below

x > -1

note: the inequality sign flips when we divide both sides by a negative number.

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A purchaser of electric relays buys from two suppliers, A and B. Supplier A supplies two of every three relays used by the compa

Reptile [31]

Answer: Our required probability is 0.3162.

Step-by-step explanation:

Since we have given that

n = 60

Probability of success = $\dfrac{2}{3}$

Probability that at most 39 of these relays come from supplier A would be

$P(X\leq 39)=binomcdf(60,\dfrac{2}{3},39)=0.3162$

Hence, our required probability is 0.3162.

7 0

3 years ago

How many solutions douse -5x-8=+8

larisa [96]

Answer: One solution

Step-by-step explanation:

Given

-5x-8=8

Add 8 on both sides

-5x-8+8=8+8

-5x=16

Divide -5 on both sides

-5x/-5=16/-5

x=-3.2

Therefore, it has one solution

Hope this helps!! :)

Please let me know if you have any questions

8 0

2 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 at most one defective, 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

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3 years ago

Find the area of a compound shape Can you please explain

gtnhenbr [62]

Answer:

$A=292.53~m^2$

Step-by-step explanation:

Area of a Compound Shape

The shape shown in the image is made of two shapes: Half a circle of radius 8 m and a triangle of base 24 m and height 16 m.

The area of a circle of radius r is:

$A_c = \pi r^2$

The area of a triangle of base b and height h is:

$\displaystyle A_t=\frac{b.h}{2}$

Calculate the area of the circle:

$A_c = \pi 8^2$

$A_c = 64\pi$

Area of half the circle:

$A_c/2 = 32\pi~m^2$

Area of the triangle:

$\displaystyle A_t=\frac{24\cdot 16}{2}$

$A_t=192~m^2$

The area of the shaded shape is:

$A=32\pi~m^2+192~m^2$

Substituting the value of pi:

$\mathbf{A=292.53~m^2}$

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3 years ago

What is 5/6 plus 7/8?

irina [24]

Answer:

1 17/24

Step-by-step explanation:

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3 years ago

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