ab and bc length and midpoint

Answer:

the last one

Step-by-step explanation:

Answer:

Step-by-step explanation:

No because 12/20 is not lower form of 22/30

Answer:

10b+10a

Step-by-step explanation:

Answer:

The answer is 10a

Step-by-step explanation:

(1)(0b+10a)

=(1)(0b)+(1)(10a)

=0+10a

=10a

Hope this helps :)

Answer:

40 miles

Step-by-step explanation:

100 - 60 = 40. 40%

60 ÷ 30 = 2. 2 miles = 10%

10 * 4 = 40

Answer:

(48.65, 56.83)

Step-by-step explanation:

Given that :

Sample size (n) = 40

Mean (m) = 52.74

Standard deviation (s) = 13.21

α = 95%

Confidence interval around sample mean can be obtained using the relation :

Mean ± Zstatistic * s/√n

Z score for 95% confidence interval = 1.96 (Z probability calculator)

s / √n = 13.21 / √40 = 2.0886843

Lower limit of confidence interval :

52.74 - (1.96 * 2.0886843) = 48.646178772 = 48.65

Upper limit of confidence interval :

52.74 + (1.96 * 2.0886843) = 56.833821228 = 56.83

Answer:

x=-7

tep-by-step explanation:

the line is on the x axis on -7

Answer:

0.0794%

Subtract the 26.3 from 100 and get the amount for water giving you 73.7

Divide both from their molar masses

26.3/74.55=0.3528

73.7/18.016=4.0908

Add both answers, 0.3528+4.0908=4.4436

Divde the KCl total from the the total moles which gives you your final amswer

0.3528/4.4436=0.0794

Answer: 0.0794

Step-by-step explanation:

Answer:

It decreases by $

Step-by-step explanation:

It decreases by $ is the correct answer.

Answer:

A - Mean is decreased by 55$

B - Median stays the same.

3.63/34= 0.1067647058823...

that means each oz of soda is 10.7 cents

Answer:

Actually I think it would be 2 1/3

Step-by-step explanation:

18 goes into 8 twice right, so whole number 2 with 2 left over so that makes it 2 2/6 then 2/2 and 6/2 is 1 and 3 so 2 1/3.

When 3 among four numbers are 42,52,52 and their median is 48 then  the fourth number is 45.

What is Median?

Median is the middle number when the given numbers are arranged in ascending or descending order, basically it divides the data into two halves the one is higher half  another is lower half of the data.

For even numbers of data we find median by first  arranging the data in ascending order then we take average of the two middle terms.

Given that among 4 numbers three are 42,51,52

Assume that the fourth no be x  and also Assume that it is among the middle two numbers as median is given 48 to find this number?

Then the data arranged in ascending order is

42,x,51,51

Median=

[tex]\frac{x+51}{2} =48\\x+51=96\\x= 45[/tex]

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The probability of getting the sum 5 on the faces of both dice is 1/9.

Probability is a branch of mathematics that deals with numerical descriptions of just how likely an occurrence is to occur or how likely a proposition is to be true.

Probability (event) = favourable outcome/ total outcome.

There are 36 possible outcomes when rolling two dice. Keep in mind that now the "sample space" is a set that includes all possible outcomes.

(1,1) (2,1) (3,1) (4,1) (5,1) (6,1)

(1,2) (2,2) (3,2) (4,2) (5,2) (6,2)

(1,3) (2,3) (3,3) (4,3) (5,3) (6,3)

(1,4) (2,4) (3,4) (4,4) (5,4) (6,4)

(1,5) (2,5) (3,5) (4,5) (5,5) (6,5)

(1,6) (2,6) (3,6) (4,6) (5,6) (6,6)

The sample space for getting the sum as 5 on both faces is;

S = {(4,1), (3,2), (2,3), (1,4)}

Thus, the favourable outcome is 4

The total outcome is 36.

P (sum as 5) = favourable outcome for 5/total outcome

P (sum as 5) = 4/36

P (sum as 5) = 1/9

Therefore, the probability that sum is 5 on both the faces of dice is 1/9.

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The value of h(3) will be equal to -18.

What do you mean by domain and ranges of a function ?

The domain is the set of all values for which the function is defined and the range of the function is the set of all values that function takes.

As per the question ;

Given function is ;

h(x) = -5x - 3

Here , we have to find out the value of h(x) for x = 3 , and this can be solved if we put the value of x in the expression x - 3.

We know that a function is defined for domain and range , so we have to give a domain here which is x = 3.

So , for x = 3 ;

h(3) can be calculated as follows ,

=(-5 × 3 ) - 3

Firstly we will solve the term within the parentheses.

= -15 - 3

and now we will add both the negative terms and we will get the value  of h (3) which is ,

= -18

Thus , the value of h(3) will be equal to -18.

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Answer:

32 cm

Step-by-step explanation:

The Bridge A' main span is 60% shorter than the span of the Bridge B.

The percentage is the difference between two parameters divided by the average of those values.

Now, as per the given question;

Bridge A' span = 2800 feet.

Bridge B' span = 4500 feet.

Percentage difference in span length :

[(difference in span) / span of B] × 100%

Difference in span = 4500 - 2800 = 2700

Now, calculate the percentage difference;

Percentage difference = (2700 / 4500) × 100%

Percentage difference = 0.6 × 100% = 60.0 %

Therefore, the main span of the Bridge B is 60% longer than the main span of bridge A.

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Answer:

Step-by-step explanation:

((14×3) + 1 )/3 = (43/3)

14 1/3 can be expressed as 43/3, which is an improper fraction.

To rewrite 14 1/3 as an improper fraction, we need to convert the mixed number into a fraction.

First, we multiply the whole number (14) by the denominator of the fraction (3) and add the numerator (1). This gives us the numerator of the improper fraction. The denominator remains the same.

14 × 3 = 42

Next, we add the numerator (1) to the result we obtained above.

42 + 1 = 43

Therefore, the improper fraction equivalent to 14 1/3 is 43/3.

In the fraction 43/3, the numerator (43) represents the total number of parts we have, and the denominator (3) represents the size of each part. It indicates that we have 43 equal parts of size 1/3.

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Answer:

It's 9

Step-by-step explanation:

2x+10=3x+1

-x=-9

x=9

its b

Step-by-step explanation:

cuz to sides are the exact same then one side is bigger than the others :)

Answer:

why did u delete my comment

Step-by-step explanation:

Answer:

x = 15

Step-by-step explanation:

4/5x - 9 = 3

add 9 to both sides

4/5x = 12

multiply both sides with 5/4

(4/5x)5/4 = 12(5/4)

x = 15

9.   LCM of    9, 12, and 15        is   180

12.  LCM of  15, 18, and 30      is   90

15.  LCM of   40 and 1      is   40

16:  factors of 24 :    1,2,3,4,6,8,12,  and 24

17:  factors of 63 :     1, 2, 4, 8, 16, 32 and 64.

18:  factors of 50 :    1, 2, 5, 10, 25, and 50

19:   LCM of : 3 , 2 , 7    is  42

20:  LCM of : 15 , 2        is  30

21:   LCM of : 45,  30    is 90

Answer:

A

Step-by-step explanation:

Plug in both point values into each of the equations and see if the LHS = RHS.

Only eq A satisfies for both points

eq B satisfies for point (5,6) but not for (1,1)

Equations C and D satisfy for neither point

The equation of the straight line passing through the points (1, 1) and (5, 6) is 4y = 5x - 1.

The general equation of a straight line is -

y = mx + c

Here {m} is the slope which also denotes the unit rate. Unit rate is the rate at which the value of {y} changes per unit change in the value of {x}.

Given is the table as shown in the figure.

The line passes through the points (1, 1) and (5, 6). We can write the slope of the line as -

m = (6 - 1)/(5 - 1)

m = 5/4

So, we can write the equation as -

y = 5x/4 + c

For the point (1, 1), we can write -

1 = 5/4 + c

c = 1 - 5/4

c = (4 - 5)/4

c = -1/4

So, the equation will be -

y = 5x/4 - 1/4

y = (5x - 1)/4

4y = 5x - 1

Therefore, the equation of the straight line passing through the points (1, 1) and (5, 6) is 4y = 5x - 1.

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Answer:

22

Step-by-step explanation:

√(x+3) –4 = 1

√(x+3) = 1 +4

√(x+3) = 5

x + 3 = 5²

x = 25 –3

x = 22

Answer:

−1 /10 x+4

Step-by-step explanation:

Group like terms

=3/5x-7/10x+12-8

add

-10x+12-8

1/10x=x/10

-x/10+12-8

−1 /10 x+4

If you need more help just ask

Answer:

-10/2 or -5 for the slope

Step-by-step explanation:

rise over run: it's going down 10 and over 2 or

for every 5 down it goes 1 over

Answer:

I think C

Step-by-step explanation: