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3 years ago

Write this phrase as an expression: a number d multiplied by 3

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

8 0

Answer:

id k :)

Step-by-step explanation:

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For which pair of functions is the vertex of g(x) 11 units above the vertex of f(x)?

Sindrei [870]

Answer:

Step-by-step explanation:

Given f(x) then f(x) + c is a vertical translation of f(x)

• If c > 0 then a vertical shift up of c units

• If c < 0 then a vertical shift down of c units

Here g(x) is 11 units above, that is a shift up, thus

g(x) = f(x) + 11, that is

g(x) = x² + 11 → C

3 0

3 years ago

Read 2 more answers

a triangle has one angle that measures 32 degrees and one angle that measures 102degrees. the measure of the triangle's thrid an

shutvik [7]

Step-by-step explanation:

all angles must add to 180

32+102= 134

180-134= 46

correct me if im wrong:)

3 0

3 years ago

Manufacture of a certain component requires three different machining operations. Machining time for each operation has a normal

faust18 [17]

Answer:

The probability is $P(X \le 70) = 0.9685$

Step-by-step explanation:

From the question we are told that

The mean values is $M_1 = 15 \ minutes , \ M_2 = 30\ minutes, \ M_3 = 20 \ minutes$

The standard deviation is $\sigma_1 = 1 \ minutes , \ \sigma_2 = 2 \ minutes , \ \sigma = 1.5 \ minutes$

Generally the total mean is mathematically represented as

$\= x = \sum M_i$

=> $\= x = 15 + 30 + 20$

=> $\= x = 65$

Generally the total variance is mathematically represented as

$V(x) = \sum \sigma^2_i$

=> $V(x) = 2^2 + 1^2 + 1.5^2$

=> $V(x) = 7.25$

Generally the total standard deviation is mathematically represented as

$\sigma = \sqrt{V(x)}$

=> $\sigma = \sqrt{7.25 }$

=> $\sigma = 2.69$

Generally the probability that it takes at most 70 min of machining time to produce a randomly selected component is mathematically represented as

$P(X \le 70) = 1 - P( X > 70 )$

Here $P(X > 70) = P(\frac{X - \mu }{\sigma} > \frac{70 - 65}{ 2.69} )$

$\frac{X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ X )$

$P(X > 70) = P(Z > 1.8587 )$

From the z table

The area under the normal curve to the right corresponding to 1.8587 is

$P(Z > 1.8587 ) = 0.031535$

$P(X \le 70) = 1 - 0.031535$

=> $P(X \le 70) = 0.9685$

7 0

3 years ago

Mathhh helpp me plzzz

ludmilkaskok [199]

Answer:

170 bbdbdbdbebsbsbsndnd

4 0

3 years ago

5x+20=57<br>how do I solved

Tema [17]

I hope this helps you 5x+20=57 5x=57-20 5x=37 x=37/5

3 0

4 years ago

Read 2 more answers