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3 years ago

Is it proportional?Please help me

Mathematics

2 answers:

matrenka [14]3 years ago

7 0

Yes, those answers are proportional

kvv77 [185]3 years ago

6 0

I believe yes

Each time it goes up by one, it is always increasing by the same amount each time

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I need help with this math lesson

irinina [24]

Answer:

9,375

Step-by-step explanation:

Each number is multiplied by 5 to get the next number. We can see this by testing multiple number on this set of data.

3*5=15

15*5=75

75*5=375.

Thus, to find the next term in the set of data, we must multiply the last number that we are given by 5.

1875*5=9,375

The next number is 9,375

Hope this helps!

3 0

2 years ago

What’s the preimeter to this?

kobusy [5.1K]

decimal form

119.571428571

fraction form

119571428571/1000000000

Have a nice day

hope this attachment relates to you

6 0

2 years ago

According to an article in Newsweek, the rate of water pollution in China is more than twice that measured in the US and more th

jeyben [28]

Answer:

(a) 0.119

(b) 0.1699

Solution:

As per the question:

Mean of the emission, $\mu = 11.7$ million ponds/day

Standard deviation, $\sigma = 2.8$ million ponds/day

Now,

(a) The probability for the water pollution to be at least 15 million pounds/day:

$P(X\geq 15) = P(\frac{X - /mu}{\sigma} \geq \frac{15 - 11.7}{2.8})$

$P(X\geq 15) = P(Z \geq 1.178)$

$P(X\geq 15)$ = 1 - P(Z < 1.178)

Using the Z score table:

$P(X\geq 15)$ = 1 - 0.881 = 0.119

The required probability is 0.119

(b) The probability when the water pollution is in between 6.2 and 9.3 million pounds/day:

$P(6.2 < X < 9.3) = P(\frac{6.2 - 11.7}{2.8} < \frac{X - \mu}{\sigma} < \frac{9.3 - 11.7}{2.8})$

$P(6.2 < X < 9.3) = P(- 1.96 < Z < - 0.86)$

P(Z < - 0.86) - P(Z < - 1.96)

Now, using teh Z score table:

0.1949 - 0.025 = 0.1699

4 0

2 years ago

Who is the theorem named after Pythagorean theorem

Illusion [34]

Answer:

Pythagoras of Samos

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

What is the value of x and the length of segment DE?

Mandarinka [93]

Answer:

Part 1) $x=6.6\ units$

Part 2) $DE=16.2\ units$

Step-by-step explanation:

Part 1) Find the value of x

we know that

Triangles CDF and FDE are similar

therefore

The ratio of its corresponding sides is proportional and its corresponding angles are congruent

$CD/FD=FD/DE$

$\frac{5}{9}=\frac{9}{2x+3} \\ \\5*(2x+3)=9*9\\ \\10x+15=81\\ \\10x= 81-15\\ \\10x=66\\ \\ x=6.6\ units$

Part 2) Find the length of DE

$DE=2x+3$

substitute the value of x

$DE=2(6.6)+3=16.2\ units$

8 0

2 years ago

Read 2 more answers