(2ax² + bx^2) – (2ay2 + by^2)

Answer:

10

10,6

60 + 36

96 square unnits

Step-by-step explanation:

Answer: The scale factor is 4.

Answer:

C, or $16.50

Step-by-step explanation:

First of all, I added the prices of the first hours of both days. $5.00 + $2.50 = $7.50. Then, for every hour, the price for parking is $1.50. So, the easier way of doing this is adding the prices of both days together. $1.50 + $1.50 = $3.00.  So, she parked for a three hours each in parking lots 1 and two. So, that's 3 times $3 which is $9. $9.00 + $7.50 = $16.50.

Answer:

(-2) + (3-7)

(-1) * (-2)

EVALUATE THE EXPRESSION

Step-by-step explanation:

HELP ME ON THIS QUESTION

Answer:

22/15=x

Step-by-step explanation:

Well first off we have to do the stuff in the parentheses-

3x(3+7)-42=2

9x+21x-42=2              Now we have to get x by itself

          +42  +42

9x+21x=44                Now add the like terms

30x=44                   Divide by 30

/30  /30                    30 chancels out

44/30                Simplify

22/15=x

Do the parenthesis first, 3+7=10, then do the exponent and get 256,multiply 3 times 10 and get 30, do 256 divided by 2 and get 128, finally do 30-128 to get 98.

98 is your answer

Answer:

Step-by-step explanation:

Im not sure if u need to use shapes, but I will since it says in the example

4x - put it in a square box

2x - also in a square box

3 - in a circle box

1 - in a circle box

combine like terms

4x+2x=6x

3+1=4

6x+4

Answer: x + 30.25 > 50

Step-by-step explanation: X is the amount need to reach 50 dollars or more.

Answer:

Xenon

Step-by-step explanation:

Its the lowest buddy

Answer: 0.41

Step-by-step explanation:

0.91 - 0.56 = 0.41

The salt left in the container is 0.41 grams.

Given that, 0.97 grams of salt is in a container and you use 0.56 grams.

We need to find how much salt is left in the container.

To subtract decimals, write the numbers in a column, and make sure that the decimal points are aligned. To keep the decimal point in your difference, place a decimal point directly below the decimal points in the subtrends. Align the decimal point in the sum with the decimal point in the subtrends, and add a zero if necessary.

Now, 0.97-0.56=0.41 grams

Hence, the salt left in the container is 0.41 grams.

To learn more about the decimals visit:

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Answer:

a=12

Step-by-step explanation:

12-6=6

Answer:

fnmk;fnhfk;

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

64 (2) ^ n-1

Step-by-step explanation:

The rule for the given geometric sequence is 64(2)ⁿ⁻¹

A geometric sequence is a sequence in which each term is found by multiplying the preceding term by the same value.

Its general term is arⁿ⁻¹. The value r is called the common ratio.

Given is a geometric sequence, 64, 128, 256, 512....., we need to find the rule for the sequence,

The general formula for geometric sequence, = arⁿ⁻¹

Finding the common ratio, r = aₙ₊₁ / a₁

r = 128 / 64 = 2

Therefore, we can write, the rule as,

aₙ = 64(2)ⁿ⁻¹

Hence, the rule for the given geometric sequence is 64(2)ⁿ⁻¹

Learn more about geometric sequences, click;

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Answer:

R=1.9

Step-by-step explanation:

you have to distributive property then subtract 7 which gives you 7r=13.3 the divide by 7 to get your R and finally you get R=1.9

Answer:

y  <1.1

So y equals y < 1.1

Step-by-step explanation:

Answer:

1a. 4

1b. 10

2a. 12

2b. 15

3a. 6

3b. 14

4a. 14

4b. 5

Answer:

3 & 3

Step-by-step explanation:

The numbers 3 & 3 multiply to give you 9 (on top)

3 x 3 = 9

The numbers 3 & 3 also add to give you 6 (on bottom)

3 + 3 = 6

Answer:

The sum of three consecutive even numbers is 96is 34

Answer:

1

Step-by-step explanation:

1 plus 1 plus 1

Answer:D=9

Step-by-step explanation:15+9=24-1=23

Answer: n = 10.

Step-by-step explanation:

In the bag, we have n counters.

4 of the counters are red.

the rest are blue, then we have:

(n - 4) blue counters.

Now, the probability that Ross takes a blue counter from the bag is equal to the quotient between the number of blue counters (n - 4) and the total number of counters, n

Then the probability is:

p1 = (n - 4)/n

Now he draws another, and it must be blue again, then we can calculate the probability in the same way as above, but he already take a blue counter, so the number of blue counters is (n - 5) and the total number of counters is (n - 1)

The probability of this event is:

p2 = (n - 5)/(n - 1)

The joint probability (the probability that Ross takes two blue counters) is equal to the product of the individual probabilities, and we know that this is equal to 1/3, then we have the equation:

1/3 = ( (n - 4)/n)*((n - 5)/(n - 1))

Now let's solve this for n.

n*(n - 1)/3 = (n - 4)*(n - 5)

(n^2 - n)/3 = n^2 - 4*n - 5*n + 20

n^2 - n = 3*(n^2 - 9*n + 20)

n^2 - n = 3*n^2 - 27*n + 60

0 = (3*n^2 - n^2) - 27*n + n + 60

0 = 2*n^2 - 26*n + 60

The two solutions of this equation can be found with Bhaskara's equation:

[tex]n = \frac{-(-26) +- \sqrt{(-26)^2 - 4*2*60} }{2*2} = \frac{26+- 14}{4}[/tex]

Then the two solutions are:

n = (26 - 14)/4 = 3

This is not an option, because we know for sure that we have 4 red counters, then this option can be discarded.

The other solution is:

n = (26 + 14)/4 = 40/4 = 10

Then we have n = 10, 10 counters in total.

Answer:

x = 1 , y = - 2

Step-by-step explanation:

Answer:

$12.60

Step-by-step explanation:

30% of 18 = 5.4

18 - 5.4 = 12.6

Answer is $12.60

Answer:

$12.60

Step-by-step explanation:

30% is just 0.3 of a number, do 100%-30% which gives you 70% or 0.7, 0.7 of 18 would be 12.6 or $12.60

Answer:

Aren't you just suppose to multiple the 24 and 20 to get 480

Answer:

480

Step-by-step explanation:

it gives you the second step

24x20

can i get brainliest please???

it would be very much appreciated

have a nice day :)

Answer:

7-5=2+1=3

Step-by-step explanation:

brainliest

Answer:

1.5

Step-by-step explanation:

Hope this works?

Answer:1.5=x

Step-by-step explanation: Add 8x on both sides