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3 years ago

HELPPPPPPPPPPPP PLEASE

Mathematics

1 answer:

Gennadij [26K]3 years ago

6 0

Answer: <B is congruent to <E

Step-by-step explanation:

There is no “angle,angle,angle” theorem when proving triangles are congruent.

There are 5 however that do:

ASA (angle, included side, angle)

SSS (side, side, side)

SAS (side, included angle, side)

AAS (angle,angle, non included side)

HL (hypotenuse,leg)

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PLZ HURRY<br> Which line is the graph of the function y = x + 6?

Montano1993 [528]

Answer:

the answer would be A because of the x+6 so the for a is the one that starts on 6

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Write a linear function f with the values f(10)=5 and f(2)=-3

Nutka1998 [239]

Answer:

$f(x)=x-5$

Step-by-step explanation:

step 1

Find the slope m

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(10,5) and (2,-3)

substitute the values

$m=\frac{-3-5}{2-10}$

$m=\frac{-8}{-8}$

$m=1$

step 2

Find the equation of the line in slope intercept form

$f(x)=mx+b$

we have

$m=1$

$point\ (10,5)$

substitute and solve for b

$5=(1)(10)+b$

$5=10+b$

$b=-5$

The linear function is equal to

$f(x)=x-5$

3 0

3 years ago

WILL MARK BRAINLIEST !!!!!!!!PLEASE HELP!!!

bezimeni [28]

Answer:

314 mi^2 (3 s.f.)

Step-by-step explanation:

$surface \: area \: of \: sphere = 4\pi {r}^{2}$

diameter of sphere= 10mi

radius of sphere= 10÷2= 5mi

Surface area of sphere= 4(pi)(5^2)= 100pi= 314mi^2 (3 s.f.)

3 0

4 years ago

5x + 900 = 1100<br> What is X?<br> My last question.

Elenna [48]

Answer:

x = 40

Step-by-step explanation:

5x + 900 = 1100

=> 5x = 1100 - 900

=> 5x = 200

=> x = 40

Hoped this helped.

8 0

2 years ago

Read 2 more answers

A company manufactures tires at a cost of $40 each. The following are probabilities of defective tires in a given production run

asambeis [7]

Answer:

The expected cost of the company for a 3000 tires batch is $120255

Step-by-step explanation:

Recall that given a probability of defective tires p, we can model the number of defective tires as a binomial random variable. For 3000 tires, if we have a probability p of having a defective tire, the expected number of defective tires is 3000p.

Let X be the number of defective tires. We can use the total expectation theorem, as follows: if there are $A_1,\dots, A_n$ events that partition the whole sample space, and we have a random variable X over the sample space, then

$E(X) = p(A_1)E(X|A_1) + \dots + p(A_n)E(X|A_n)$ .

So, in this case, we have the following

$E(X) = P(p=0\%)E(X|p=0\%)+P(p=1\%)E(X|p=1\%)+P(p=2\%)E(X|p=2\%)+P(p=3\%)E(X|p=3\%) = 0.1\cdot 3000\cdot 0 + 0.3\cdot 3000\cdot 0.01+ 0.4\cdot 3000\cdot 0.02+ 0.2\cdot 3000\cdot 0.03 = 51$ .

Let Y be the number non defective tires. then X+Y = 3000. So Y = 3000-X. Then E(Y) = 3000-E(X). Then, E(Y) = 2949.

Finally, note that the cost of the batch would be 40Y+45X. Then

$E(40Y+45X) = 40E(Y)+45E(X) = 40\cdot 2949+45\cdot 51=120255$

3 0

3 years ago