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Nutka1998 [239]
4 years ago
5

Ignore a and b i need help on c

Mathematics
2 answers:
Fiesta28 [93]4 years ago
7 0

Your score would be 70 because 15(5) + 10 = 70

Gala2k [10]4 years ago
4 0

Answer:

85

Step-by-step explanation:

The formula y = 15x + 10 is an important part of this question, and you must use it in Part c.

If you answer 5 questions correctly, your score, y, will be 15(5) + 10, or 85.

You might be interested in
387 in base 10 to base 5
GrogVix [38]

Answer: 387 in base 10 to base 5 is 3022

Step-by-step explanation:

To convert 387 in base 10 to base 5, we would take the following steps

Firstly , we would divide the number to be converted by 5. The remainder forms the last digit of the number in base 5 while the quotient is divided again to get a new quotient and remainder. The new remainder forms the next digit to the left of the last digit. It continues till it gets to zero. Therefore,

387/5 = 77 remainder 2(last digit)

77/5 = 15 remainder 2(next digit to the left of the last).

15/5 = 3 remainder 0(next digit to the left)

3/5 = 0 remainder 3(next and final digit to the left)

Therefore, 387 in base 10 to base 5 is 3022

3 0
3 years ago
Read 2 more answers
A company makes batteries with an average life span of 300
aksik [14]

Answer:

a) P(z<-0.66) = 0.2546

b) P(-1<z<1) = 0.6826

c) P(z>1.33) = 0.9082

Step-by-step explanation:

Mean = 300

Standard Deviation = 75

a) Less than 250 hours

P(X<250)=?

z = x - mean/ standard deviation

z = 250 - 300 / 75

z = -50/75

z = -0.66

P(X<250) = P(z<-0.66)

Looking for value of z = -0.66 from z score table

P(z<-0.66) = 0.2546

b. Between 225 and 375 hours

P(225<X<375)=?

z = x - mean/ standard deviation

z = 225-300/75

z = -75/75

z = -1

z = x - mean/ standard deviation

z = 375-300/75

z = 75/75

z = 1

P(225<X<375) = P(-1<z<1)

Looking for values from z score table

P(-1<z<1) = P(z<1) - P(z<-1)

P(-1<z<1) = 0.8413 - 0.1587

P(-1<z<1) = 0.6826

c. More than 400 hours

P(X>400) =?

z = x - mean/ standard deviation

z = 400-300/75

z = 100/75

z = 1.33

P(X>400) = P(z>1.33)

Looking for value of z = 1.33 from z-score table

P(z>1.33) = 0.9082

3 0
3 years ago
In an arithmetic​ sequence, the nth term an is given by the formula an=a1+(n−1)d​, where a1 is the first term and d is the commo
AlekseyPX

Answer:

The 105th term of given sequence is \frac{105}{2}.

Step-by-step explanation:

The given sequence is

\frac{1}{2},1,\frac{3}{2},2

It can be rewritten as

0.5,1,1.5,2

Here the first term is 0.5.

It is an arithmetic​ sequence because it has common difference.

d=a_2-a_1=1-0.5=0.5

d=a_3-a_2=1.5-1=0.5

d=a_4-a_3=2-1.5=0.5

The nth term of an AP is

a_n=a_1+(n-1)d

where, a_1 is first term and d is common difference.

Substitute a_1=0.5 and d=0.5 in the above formula.

a_n=0.5+(n-1)0.5

a_n=0.5+0.5n-0.5

a_n=0.5n

We need to find the 105th term of given sequence.

Substitute n=105 in the above equation.

a_n=0.5(105)

a_n=52.5

a_n=\frac{105}{2}

Therefore the 105th term of given sequence is \frac{105}{2}.

3 0
3 years ago
I promise I will mark as brainiest my watch was correct at noon, after which it started to lose 17 minutes per hour until 6 hour
Usimov [2.4K]

Answer:

<h2>10:00 Pm</h2>

Step-by-step explanation:

Take 17 away from 1:00 = 12:43

Take 17 away from 1:43 = 1:26

Take 17 away from 2:26 = 2:09

Take 17 away from 3:09 = 2:52

There we are: at the time which the watch says now.

Now let's see what the correct time should be:

at 12:43 it is really 1:00

at 1:26 it is really 2:00

at 2:09 it is really 3:00

at 2:52 it is really 4:00

However, it says the watch stopped 6 hours ago meaning that the time should be 10:00 as 4 + 6 = 10.

<h2>I'm always happy to help :)</h2>
5 0
3 years ago
What is the greatest common factor 30y^8 + 10y^4
AnnyKZ [126]

Answer: 10y^4

Since it can go 10y^4(3y^4+1)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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