Alebra

• A

• B

• C

Answer explanation

The expression simplifies to -2 + 16 < 5, which is false. Therefore, -2 + 4^2 is greater than the fourth root of 200. Hence, the correct answer is C.

• 123xwv - 123x^2 - 34w^2v^2 + 34wvx

• 123xwv + 123x^2 - 34w^2v^2 - 34wvx

• 123xwv - 123x^2 - 34w^2v^2 - 34wvx

• 123xwv - 123x^2 + 34w^2v^2 + 34wvx

Answer explanation

To find the product, distribute each term in the first polynomial by each term in the second polynomial. The correct choice is 123xwv - 123x^2 - 34w^2v^2 + 34wvx.

Tags

CCSS.HSA.APR.A.1

• 35.285

• 35.29

• 35.28

• 35.2851

Answer explanation

To find the sum, convert mixed number to decimal: 4\frac{23}{21} = 4 + \frac{23}{21} = 4 + 1.0952 = 5.0952. Then add: 5.0952 + 34.01 + 0.125 = 35.285.

Tags

CCSS.7.NS.A.1C

• 5.523

• 3.523

• 6.523

• 4.523

Answer explanation

To solve the equation, we first simplify it to 2^x - 16 = 30. Then, 2^x = 46. Taking the log base 2 of both sides gives x = log2(46) ≈ 5.523.

• 33

• 39

• 21

• 50

Answer explanation

Given x = 45 and x - 12 = y, substituting x=45 into the equation gives y = 45 - 12 = 33. Therefore, the value of y is 33.

• x = 100

• x = 20

• x = 5

• x = 50

Answer explanation

To solve the equation, square both sides to get x = 100. Therefore, the correct answer is x = 100.

• 50,000,000,000

• 60,000,000,000

• 70,000,000,000

• 90,000,000,000

Answer explanation

The correct answer is 50,000,000,000 because the cube root of 400 is 20, and 20 to the power of x equals 1,000,000,000,000.

• x = 313

• x = -50

• x = 1000

• x = 215

• X = -27

Answer explanation

To solve the equation, first simplify the left side. Then isolate x by performing the necessary operations. The correct value of x is 313.

Tags

CCSS.7.EE.B.4A

• -1/10

• -1/40

• 0

• 1/10

Answer explanation

To solve the expression, follow the rule of no minus in the denominator. Simplify each fraction separately to get -1/40 as the final answer.

Tags

CCSS.7.NS.A.1D

• X = 124

• X = 110

• X = 100

• X = 90

Answer explanation

To solve the equation, first simplify the left side. Then, isolate the variable X. After simplifying, X = 124 is the correct choice.

Tags

CCSS.HSA.REI.A.2