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iris [78.8K]
3 years ago
7

2a is any number a multiplied by the number 2. Calculate the value of 2a for a = 7.

Mathematics
1 answer:
marshall27 [118]3 years ago
3 0

Answer:

14

Step-by-step explanation:

step 1.

substitute 'a' with 7

You are then left with a multiplication problem.

step 2.

solve 2 × 7

answer is 14

You might be interested in
What is the y-intercept of this quadratic function f(I)=-i2+10i-22
const2013 [10]

The y-intercept of the quadratic equation is -47.

<h3>What is Quadratic Equation?</h3>

A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax² + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term.

Here, given quadratic equation;

    f(i) = i² + 10i - 22

or, y = i² + 10i - 22

     y = i² + 2.5x - (47-25)    

    y = i² + 2.5x + 25 - 47

    y = (i+5)² - 47

Thus, the y-intercept of the quadratic equation is -47.

Learn more about Quadratic Equations from:

brainly.com/question/2263981

#SPJ1

4 0
2 years ago
I was told that the answer to this is -7 but I don't understand how to get there.
Amiraneli [1.4K]

Answer:

The answer to your question is: - 7

Step-by-step explanation:

                                            3125 = (- 1  - 18t) ⁵/³

                                            (3125)³ = ( -1 - 18t)⁵

                                            (3125)³/⁵ = - 1 - 18t

                                            125 = - 1 - 18t

                                            125 + 1 = - 18t

                                            126 = - 18t

                                            t = 126 / -18

                                            t = -7

3125³ = 3.0518 x 10¹⁰

\sqrt[5]{3.0518 x 10¹⁰} = 125

                       

6 0
3 years ago
Select the letter of the correct answer<br><br> A) -7<br> C) 7<br> E) -3<br> B) -8<br> D) 4
-Dominant- [34]
The is c
The explanation is that when you were working out
4 0
3 years ago
NEED HELPPPPPPP what is 5x5x5x5x5x5x5x0x6x6x9x21x3
Mama L [17]
0, because anything times 0 equals 0.
8 0
3 years ago
Read 2 more answers
Use the distributive property to simplify the expression 6(s-9
Natalija [7]
You have to multiply the 6 by both s and -9

So you will get 6s - 54 which is the answer
7 0
3 years ago
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