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frozen [14]
3 years ago
13

To evaluate an expression with variables: 1. Substitute the values for the variables. 2. Identify grouping symbols, beginning wi

th the innermost symbols. 3. Determine and apply the rules of exponents to simplify. 4. Evaluate. Evaluate the expression using x = –1 and y=3. (6x4y3) What is the value of the expression?
Mathematics
2 answers:
Eduardwww [97]3 years ago
6 0

Evaluate the expression using x = –1 and y=3.

(6x^4y^3)

1. Substitute the values for the variables.

we plug in -1 for x  and 3 for y

(6x^4y^3)

(6(-1)^4(3)^3)

2. Identify grouping symbols, beginning with the innermost symbols.

(6*(-1)^4*(3)^3)

We take exponent and then we multiply

3. Determine and apply the rules of exponents to simplify

(6*(-1)^4*(3)^3)

(-1)^4 = -1 * -1 * -1 * -1 = 1

(3)^3 = 3*3*3= 27

(6*(1)*(27))

4. Evaluate.

(6*(1)*(27))

162

The value of the expression is 162

Ierofanga [76]3 years ago
5 0

Answer:

The answer is 162

Step-by-step explanation:

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Serjik [45]
Factors are any numbers (prime or composite) that go into a given number. Prime factorization is finding all the prime numbers that go into the number and how many times each prime number goes into it. For example, factors of 16 are: 1, 2, 4, 8, 16. The prime factorization of 16 is: 2*2*2*2.
Another example:
Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42
Prime factorization of 42: 2*3*7
6 0
3 years ago
Annabeth, Grover, and Percy are shopping. Together, Annabeth and Grover have $43. If Grover and Percy combine their money, they
Andreas93 [3]

Answer:

Grover has $24, Percy has $31 and Annabeth has $19.

Step-by-step explanation:

Create equations to represent the situation.

let a be Annabeth

let g be Grover

let p be Percy

a + g = 43      Together, Annabeth and Grover have $43

g + p = 55    If Grover and Percy combine their money, they have $55

p = g + 7        Percy has $7 more than Grover

See if any of the equations can be combined. For example, we know p is g+7.

Substitute p for g+7 in an equation that has the variable p.

g + p = 55

g + g + 7 = 55    Combine like terms (g)

2g + 7 = 55   Start isolating g. Subtract 7 from both sides

2g = 55 - 7

2g = 48     Divide both sides by 2

g = 48/2    

g = 24         Money Grover has

Use the equation p = g + 7. Find "p" by substituting g for 24.

p = g + 7

p = 24 + 7   Add

p = 31    Money Percy has

Substitute g for 24 in the last equation, a + g = 43, to find a.

a + g = 43

a + 24 = 43    Subtract 24 from both sides

a = 43 - 24

a = 19     Money Annabeth has

Therefore Grover has $24, Percy has $31 and Annabeth has $19.

3 0
3 years ago
Plz, help me. It's due in 3 hours. Giving out brainlyist to the first to answer. Ty if you answer. You don't have to take a pic
Pavlova-9 [17]

Answer:

348 ÷ 3 = 116

63 × 27 = 1,701

Step-by-step explanation:

The work is in the file attached. Used long division, and long multiplication.

3 0
2 years ago
What is the most common number of sit-ups completed in 1 minute? Explain how you used the dot plot to identify this number.
3241004551 [841]

Answer:

38.

Step-by-step explanation:

38 is the highest column in the plot.

7 0
3 years ago
Read 2 more answers
What is the value of c in the equation below? 2 Superscript negative 4 Baseline times 2 squared = a Superscript b Baseline = c N
OverLord2011 [107]

Question:

What is the value of c in the equation below?

2^{-4}*2^2 = a^b = c

A. -4     B. -2     C. 1/64     D. 1/4

Answer:

c = \frac{1}{4}

Step-by-step explanation:

Given

2^{-4}*2^2 = a^b = c

Required

Find c

The equation can be rewritten as:

c = 2^{-4}*2^2

c = a^b

Solving: c = 2^{-4}*2^2

Apply law of indices

c = 2^{-4+2}

c = 2^{-2}

Apply law of indices

c = \frac{1}{2^2}

c = \frac{1}{4}

3 0
3 years ago
Read 2 more answers
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