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Temka [501]
2 years ago
15

Three times the sum of seven and a number:

Mathematics
2 answers:
sashaice [31]2 years ago
3 0

Answer:

7× • 3

Step-by-step explanation:

This might be the answer

Strike441 [17]2 years ago
3 0
7 +(x) x 3 this is what it sounds like.
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Yo I need this as soon as possible
joja [24]

Answer:

Step-by-step explanation:

So, if we know that 25 is the area of the square, that means that each side is 5.  That also means the diameter of the circle is 5, so the radius is 2.5.  Now, we can input the radius into the circumference formula for a circle, which is 2πradius.  So, 2π2.5 which equals 5π, or about 15.71

3 0
3 years ago
Write the equation of the quadratic function in standard form represented by the graph
Nutka1998 [239]
Hello : 
f(x) = <span>a(x-k)²+k....... the point vertex is (h , k )
in this exercice : h = -3 and k = -1    s0 f(x) = a(x+3)²-1
find : a 
but f(0)=8
a(0+3)² -1 = 8
9a-1=8
9a =9
a=1
f(x) =(x+3)²-1 =x²+6x+9-1
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3 0
3 years ago
* The nth term of sequence A is 3n − 2 The nth term of sequence B is 10 − 2n Sally says there is only one number that is in both
Nina [5.8K]

Answer:

Sally is not right

Step-by-step explanation:

Given the two sequences which have their respective n^{th} terms as following:

Sequence A. 3n - 2

Sequence B. 10 - 2n

As per Sally, there exists only one number which is in both the sequences.

To find:

Whether Sally is correct or not.

Solution:

For Sally to be correct, we need to put the n^{th} terms of the respective sequences as equal and let us verify that.

3n-2=10-2n\\\Rightarrow 3n+2n=10+2\\\Rightarrow 5n=12\\\Rightarrow n = \dfrac{12}{5}

When we talk about n^{th} terms, n here is a whole number not a fractional number.

But as per the statement as stated by Sally n is a fractional number, only then the two sequences can have a number which is in the both sequences.

Therefore, no number can be in both the sequences A and B.

Hence, Sally is not right.

7 0
2 years ago
Can Someone Plz Help, I have to attachments.
Sav [38]

What you have is right
4 0
3 years ago
Read 2 more answers
Five times the sum of some number plus 3 is equal to 7 times the number minus 1.
Alexandra [31]
5(x+3)=7x-3 which is the equation, then we solve for it, and the answer is 9
4 0
3 years ago
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