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3241004551 [841]

3 years ago

5

A phone company offers two monthly plans. Plan A costs $26 plus an additional $0.13 for each minute of calls. Plan B costs $17 p

lus an additional $0.18 for each minute of calls. Please help me!

1 answer:

Gekata [30.6K]3 years ago

6 0

Answer:

DSC

Step-by-step explanation:

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If the perimeters of each shape are equal, which equation can be used to find the value of x?

Brums [2.3K]

Answer:

(x+2) + x + (x+4) = 2(1/2) + 2(x+3)

Step-by-step explanation:

They are equal to each other and the rectangle has 2x more perimeter

The triangle would be divided in half from that rectangle.

Sorry If this is confusing I am not very good at explaining things.

4 0

3 years ago

HELP PLEASE SHOW STEPS I HAVE NO IDEA WHAT TO DO. I HAVE BEEN TRYING TO FIGURE IT OUT BUT I CAN’T.

weqwewe [10]

Answer: $x^{2} +23x+49$

Step-by-step explanation:

To find the area of the shaded region, you must find the area of the larger rectangle [(x+10)×(2x+5)] and subtract the area of the smaller rectangle [(x+1)×(x+1)] from it.

First, you simplify the larger rectangle's area:

(x+10)×(2x+5) = $2x^{2} +25x+50$

Then, simplify the smaller rectangle's area:

(x+1)×(x+1) = $x^{2} +2x+1$

Finally, subtract the smaller rectangle's area from the larger rectangle's area:

$(2x^{2} +25x+50) - (x^{2} +2x+1) = x^{2} +23x+49$

Therefore, the final answer is $x^{2} +23x+49$ .

I hope this helps!

8 0

2 years ago

Read 2 more answers

Last summer, there were 890 houses for sale in Annie's town. The other 110 houses in the town were not for sale. What percentage

marusya05 [52]

Answer:

89%

Step-by-step explanation:

First find the total houses

890+110=1000 houses total

out of the 1000, 890 were for sale

so 890/1000 divide by 100

8.9/10

or 89%

4 0

3 years ago

The nth term of a sequence is 3n^2- 1

Thepotemich [5.8K]

Answer: The number that belongs to both sequences is 26.

Step-by-step explanation:

We have two sequences, let's call one as A and the other as B.

The n-th term of sequence A is written as:

aₙ = 3*n^2 - 1

the nth term of sequence B is written as:

bₙ = 30 - n^2

We want to find a term that belongs to both sequences, (it can be for different integers, we can use n for sequence A and x for sequence B)

Then we want to find:

aₙ = bₓ

where n and x are integer numbers.

Then we will heave:

3*n^2 - 1 = 30 - x^2

To find the pair, we could isolate one of the variables, then input different integers in the other variable and see if the outcome is also an integer.

Let's isolate n.

3*n^2 = 30 - x^2 + 1

3*n^2 = 31 - x^2

n^2 = (31 - x^2)/3

n = √( (31 - x^2)/3)

Now let's input different values for x, and see if the outcome is also an integer, notice that x is in a negative term inside a square root, then we have only a few values of x such that the equation can be true.

Then let's start with x = 1.

n(1) = √( (31 - 1^2)/3) = √(30/3) = √10

We know that √10 is not an integer.

now with x = 2,

n(2) = √( (31 - 2^2)/3) = √( (31 - 4)/3) = √(27/3) = √9 = 3

then if x = 2, we have n = 3.

Both of them are integers, then we get:

a₂ = 3*(3)^2 - 1 = 27 - 1 = 26

b₃ = 30 - 2^2 = 30 - 4 = 26

The number that belongs to both sequences is 26.

5 0

2 years ago

Helppppp..... evaluate 3^-3=

elixir [45]

ANSWER

The answer is

B

$\frac{1}{27}$

EXPLANATION

The given expression is

${3}^{ - 3}$

Use the negative index property;

${a}^{ - m} = \frac{1}{ {a}^{m} }$

We apply this property to get:

${3}^{ - 3} = \frac{1}{ {3}^{3} }$

This gives us:

${3}^{ - 3} = \frac{1}{3 \times 3 \times 3 }$

${3}^{ - 3} = \frac{1}{27}$

The correct option is B.

6 0

3 years ago

Read 2 more answers