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3 years ago

15

These are samples of student's work. Both students got the same answer. But did the work differently . Which student did the wor

k correctly?

2 answers:

RoseWind [281]3 years ago

6 0

Answer:

bbbbbbbbbbbbbbbbbbbbbbb

Step-by-step explanation:

b

Levart [38]3 years ago

5 0

Answer:

student b

Step-by-step explanation:

when multiplying add the exponents

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Let a= x^2 +4. Rewrite the following equation in terms of a and set it equal to zero.

swat32

Answer:

C and G

Step-by-step explanation:

(x^2+4)^2+32=12x^2+48 is written as $(x^2+4)^2+32=12x^2+48$ .

We can simplify the expression using the term a by replacing x^2 + 4 with a.

$(x^2+4)^2+32=12x^2+48\\(x^2+4)^2+32=12(x^2+4)\\a^2 + 32 = 12a\\a^2 - 12a + 32 = 0$

This factors into (a-4)(a-8). Solve by setting each factor equal to 0 and solve for a.

a-4 = 0 a=4

a-8=0 a=8

4 0

3 years ago

If Ken wanted to create a function that modeled an exponential function with base of 11 and what exponents were needed to reach

Rudiy27

$\bf \textit{exponential form of a logarithm}
\\\\
log_a b=y \implies a^y= b\qquad\qquad 
% exponential notation 2nd form
a^y= b\implies log_a b=y \\\\
-------------------------------\\\\
x=11^y\implies log_{11}(x)=y\implies log_{11}(x)=f(x)$

4 0

4 years ago

What type of relationship does this pair of angles have?

guajiro [1.7K]

Answer:

D) They are complementary angles.

Step-by-step explanation:

67+23=90

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%207xy%20%2B%2012%20%7By%7D%5E%7B2%7D%20" id="TexFormula1" title=

il63 [147K]

(x +3y)(x + 4y) tell me if you want me to tell you how I found it.

3 0

3 years ago

Insert two geometric means between 729 and 64

Liula [17]

Answer:

324 and 144

Step-by-step explanation:

We require

a₁, a₂, a₃, a₄

where a₂ and a₃ are the required geometric means

The n th term of a geometric sequence is

$a_{n}$ = a₁ $(r)^{n-1}$

where a₁ is the first term and r the common ratio

Here a₁ = 729 and a₄ = 64, thus

729(r³) = 64 ( divide both sides by 729 )

r³ = $\frac{64}{729}$ ( take the cube root of both sides )

r = $\sqrt[3]{\frac{64}{729} }$ = $\frac{4}{9}$ , then

a₂ = 729 × $\frac{4}{9}$ = 81 × 4 = 324

a₃ = 324 × $\frac{4}{9}$ = 36 × 4 = 144

Thus

729, 324, 144, 64

8 0

3 years ago