math calculators

Which of the following is a real zero to the nearest hundredth between - 1 and 0 of y = x 5 + x 3 + x 2 + x + 1 ?[Use a graphing calculator.] => - 0.55 or - 0.25 or - 0.80 or - 0.40..

Find NDER f ( 1 2 ), if f ( x ) = 2 x 2 by calculating the symmetric difference quotient with h = 0.001. Compare it to the actual value of f ' ( x ). => 2; Both are equal or 2.01; The numerical derivative is more than the actual value. or 2; The actual value is more than the numerical der..

The angle of a sector is 90 degrees and the radius of the circle is 3 cm. Calculate the area of the sector. => 3 π 2 square cm or 9 π 2 square cm or 9 π 4 square cm or 3 π 4 square cm..

David makes $132 a week. He spent $54. Identify the number sentence to calculate the money left with David. => $54 $132 = n or $ 1 3 2 n = $54 or $132+ n = $54 or n + $54 = $132..

Find the sign of cos 143 o without using a calculator. => - or +..

The circle graph gives the measure of the central angle for each category. Calculate the percent of the Hispanics in the United States. => 55% or 25% or 50% or 60%..

Calculate the percent rise in the number of vehicle registrations from 1990 to 2000 from the graph. => 8 % or 10 % or 14 % or 12%..

When a 95% confidence interval is calculated instead of a 90% confidence interval with the same sample, the maximum error of estimate will be _____ . => either smaller or larger depending on sample size or the same or smaller or larger..

Calculate. 264 ÷ 6 => 62 or 57 or 44 or 54..

Use calculator to find cos 500° and round off to the nearest hundredth. => 0.33 or 0.77 or - 0.77 or - 0.23..