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2 years ago

In order to solve the following system of equations by subtraction, which of

Mathematics

1 answer:

uysha [10]2 years ago

7 0

Answer: I think it's C.Multiply the top equation by 3 and the bottom equation by 4

Step-by-step explanation:

Multiplying the top equation by 3 you get:

3(4x – 2y) = 3∗7

12x - 6y = 21 (eq.1)

Multiplying the bottom equation by 4 you get:

4(3x – 3y) = 4∗15

12x - 12y = 60 (eq.2)

Now, if you subtact eq.2 from eq.1 you get:

(12x - 6y = 21 )

(12x - 12y = 60)

___________________

0x + [- 6y -(-12y)] = 21 - 60

Carrying out the calculation you get:

6y = -39

y = -39/6

y = -13/2

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What is the average rate of change for this exponential function for the interval from x = 2 to x = 4?

Hunter-Best [27]

Answer:

The average rate of change over the interval is 120

Step-by-step explanation:

For a function f(x) the average rate of change over an interval [a,b] is given as;

f(b)-f(a)/b-a

in this case, a is 2 and b is 4

f(b) is 256 and f(a) is 16

Substituting these values in the equation for rate of change, we have;

(256-16)/(4-2) = 240/2 = 120

8 0

3 years ago

Tell whether the statement is true or false.<br>{ {4, 16, 24, 7, 37} = (37, 16, 7,42,4}

nikklg [1K]

Answer:

false

Step-by-step explanation:

i dont understand kinda

but if you add it,

88<106

so false

8 0

2 years ago

If a ladder is 5.5 m long and it is placed 3 m from the wall, solve and show the work when you use the Pythagorean Theorem to fi

natali 33 [55]

Answer:

4.609 meters

Step-by-step explanation:

The hypotenuse is the ladder because it is the slanted side. 3m is one of the other side lengths

A^2 + B^2 = C^2

3^2 + B^2 = 5.5^2

9 + B^2 = 30.25

30.25 - 9= B^2

21.25= B^2

4.609=B

4 0

2 years ago

Find the distance between the points A(-6,8) and B(12, -7) by using the distance formula or Pythagorean Theorem.

Leni [432]

For which situations is it appropriate to use a sample? Select three options.

What percentage of pick-up truck drivers want their next vehicle purchase to be another pick-up truck?

What is the average number of rainbows each year in Honolulu?

How many pedestrians would use a walkway built over a busy road?

How many police cars are equipped with computers?

What is the most popular car color in the teachers’ parking lot?Answer:

Step-by-step explanation:For which situations is it appropriate to use a sample? Select three options.

What percentage of pick-up truck drivers want their next vehicle purchase to be another pick-up truck?

What is the average number of rainbows each year in Honolulu?

How many pedestrians would use a walkway built over a busy road?

How many police cars are equipped with computers?

What is the most popular car color in the teachers’ parking lot?

7 0

3 years ago

Help help me please!!!!!!!

Makovka662 [10]

Answer:

okay so the first question says divide :40203 by 13

= after dividing the quotient comes as 3092

Step-by-step explanation:

then to verify the answer using division algorithm

the formula is as dividend = (q x d) + remainder

so the verification= 13 x 3092 + 7 = 4023

the second question says to find the difference between the pv of two 4's in 948475

the answer is 40000 - 400 = 39600ans.

the third question's answer will be:

amount mohan deposited in his savings Bank account= ₹35000

amount he withdrawed = ₹6245

therefore total amount of money left in his account =

₹28755ans.

Hope it helps!!!!!!!!!!

pls mark as brainliest!!!!!!

6 0

2 years ago