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2 years ago

32. The expression a^x means that a is to be used as a factor x times. Therefore, if a^x is squared, the result is

Mathematics

1 answer:

dybincka [34]2 years ago

3 0

Answer:

B. a^2x

Step-by-step explanation:

squaring a^x gives. (a^x)²

by applying the rules of indices, ^2 multiplies x therefore making it a^2x

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You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? 2x - 3y = 12

suter [353]

Answer:

Step-by-step explanation:

The Elimination Method is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.

If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.

If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.

When multiplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).

So, option B is not allowed (it is not allowed to multiply only one part of the equation)

6 0

2 years ago

A certain composite number has 4 factors and the sum of them is 96. Find the number(hint the number is divisible by 7). Just don

ankoles [38]

Answer:

$\huge\boxed{77}$

Step-by-step explanation:

The number can be divisible by 7.

The multiples of 7 are 7,14,21,28,35,42,49,56,63,70,77,84 and so on

Finding the factors for all of the multiples of 7:

7 => 1,7 [Not 4 factors]

14 => 1,2,7,14 [4 factors but Sum = 24]

21 => 1,3,7,21 [4 factors but Sum = 32]

28 => 1, 2, 4, 7, 14, 28 [Not 4]

35 => 1,5,7,35 [4 factors but Sum = 48]

42 => 1, 2, 3, 6, 7, 14, 21, 42 [Not 4]

49 => 1,7,49 [Not 4]

56 => 1, 2, 4, 7, 8, 14, 28, 56 [Not 4]

63 => 1, 3, 7, 9, 21, 63 [Not 4]

70 => 1, 2, 5, 7, 10, 14, 35, 70 [Not 4]

77 => 1, 7, 11, 77 [4 factors and Sum = 96]

7 0

2 years ago

Read 2 more answers

Helpppppppppppppppppppppppppppppppppp

djverab [1.8K]

Answer:

first you would find the sum of all the people who DONT have grey hair (15)

5:15 or if simplified it would be 1:3 pls mark brainliest if correct :D

3 0

3 years ago

1/10, 3/20, 5/30, 7/40 arithmetic sequence geometric sequence neither

adell [148]

If a, b, c is an arithmetic sequence then a + c = 2b

a = 1/10; b = 3/20, c = 5/30

a + c = 1/10 + 5/30 = 3/30 + 5/30 = (3+5)/30 = 8/30
2b = 2 · 3/20 = 3/10 = 9/30

8/30 ≠ 9/30

If a, b, c is a geometric sequence then ac = b²

ac = 1/10 · 5/30 = 1/2 · 1/30 = 1/60
b² = (3/20)² = 9/400

1/60 ≠ 9/400

Answer: Neither.

3 0

3 years ago

Which is an equation of a line that passes through the point (-4, 7) and is perpendicular to the line y = (1/2)x + 4

8_murik_8 [283]

Find the slope of the perpendicular line:

$y = \dfrac{1}{2} x + b$

$\text {Slope = } \dfrac{1}{2}$

$\text {Slope =} \boxed {\text{negative reciprocal}} \text { of the slope of the original line}$

$\text {Perpendicular Slope = -2}$

Form the equation:

$y = mx + b$

$y = -2x + b$

Find y-intercept given that the line passed through (-4, 7):

$y = -2x + b$

$7 = -2(-4) + b$

$7 = 8 + b$

$b = 7 - 8$

$b = -1$

Form the equation:

$y = -2x - 1$

$\boxed {\boxed {Answer: y = -2x - 1}}$

3 0

3 years ago

Read 2 more answers