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Solve the expression 2(1.6^0+7)−4.9^0

.(1 point)

5 answers

Let's break down the expression step by step:

The expression is:

\[ 2(1.6^0 + 7) - 4 \cdot 9^0 \]

  1. First, calculate \( 1.6^0 \) and \( 9^0 \):

    • Any non-zero number raised to the power of 0 is 1. Therefore, \( 1.6^0 = 1 \) and \( 9^0 = 1 \).

  2. Substitute these values back into the expression: \[ 2(1 + 7) - 4 \cdot 1 \]

  3. Simplify inside the parentheses: \[ 2(8) - 4 \]

  4. Multiply: \[ 16 - 4 \]

  5. Subtract: \[ 12 \]

Thus, the solution to the expression \( 2(1.6^0 + 7) - 4 \cdot 9^0 \) is \( \boxed{12} \).

youre wrong

Let's carefully go through the calculation again step by step to ensure accuracy.

The expression given is:

\[ 2(1.6^0 + 7) - 4 \cdot 9^0 \]

  1. Evaluate \( 1.6^0 \) and \( 9^0 \):

    • \( 1.6^0 = 1 \)
    • \( 9^0 = 1 \)

  2. Substitute these values back into the expression: \[ 2(1 + 7) - 4 \cdot 1 \]

  3. Simplify inside the parentheses: \[ 2(8) - 4 \]

  4. Multiply: \[ 16 - 4 \]

  5. Subtract: \[ 12 \]

Thus, the final calculation gives us:

\[ 2(1.6^0 + 7) - 4 \cdot 9^0 = 12 \]

If you believe there is a mistake, please provide your calculation, and I will be happy to clarify or correct any misunderstanding.

the test says its wrong

Let's reevaluate the expression step by step to ensure there are no mistakes.

The expression to evaluate is:

\[ 2(1.6^0 + 7) - 4 \cdot 9^0 \]

  1. Evaluate \(1.6^0\):

    • Since any non-zero number raised to the power of 0 is 1, we have: \[ 1.6^0 = 1 \]

  2. Evaluate \(9^0\):

    • Similarly, \[ 9^0 = 1 \]

  3. Substitute these values into the expression: \[ 2(1 + 7) - 4 \cdot 1 \]

  4. Simplify the expression in the parentheses: \[ 2(8) - 4 \cdot 1 \]

  5. Calculate \(2 \cdot 8\): \[ 16 - 4 \]

  6. Finally, perform the subtraction: \[ 16 - 4 = 12 \]

After carefully reevaluating step-by-step, the solution still appears to be \( \boxed{12} \).

If the test states otherwise, please double-check the original expression or specify if there are additional conditions or variations in the problem you might have encountered.