Basic Math Questions and Answers

points). Two students try to solve the equation 4* = 26: Student 1's work 4* = 26 (22)* = 26 22+x= 26 2 + x = 6 x = 4 Student 2's work 4x = 26 log(4*) = log(26) xlog(4) = log(64) X = log(64) log(4) x = 3 Which student(s) solved the equation correctly? Explain.

test. You have held 1 questions so far. A school needs 1, 860 pencils for its students. The pencils are sold in boxes of 12. How many boxes does the school need to order? The solution is I

During 2014, there was an Ebola breakout in West Africa. On April 1, 2014, there had been 130 cases reported. A month later there had been 234 cases reported. Question 5 Find the absolute and relative change between the two reported values. Absolute change: Relative change: As a decimal: As a percent:

When a constant force acts upon an object, the acceleration of the object varies inversely with its mass. When a certain constant force acts upon an object with mass 10 kg, the acceleration of the object is 7 m/s². If the same force acts upon another object whose mass is 35 kg, what is this object's acceleration?

A KHS class ring is dropped from an upper-room window (1600 feet high) at NRG Stadium in Houston. a. Find the position function. b. Find the velocity function. c. Find the time required for the ring to reach ground level.

Suppose that an amount of $1600 is invested into an account that earns 3.2% compounded continuously. a) How much is in the account after 7 years? b) How long does it take for the balance in the account to reach $3000? c) Suppose that after a period of four years, the balance is withdrawn and invested into a new account that earns 4.6% compounded monthly. How much would be in that new account 7 years from now?

Two cars leave from the same location. Car #1 travels north at 60 mph and car #2 travels south at 54 mph. How long will it take for the cars to be 342 mile apart? 5.7 hours 6.3 hours 0.6 hours 3 hours

A missile was fired from a submarine from 170 feet below sea level. If the missile reached a height of 16400 feet before exploding, what was the change in the altitude of the missile?

1 point The vertices of a triangle are at (0, 0), (4,4), and (6,2). What is the volume in cubic units of the figure created by rotating the triangle about y = ? O 64√2 32√2 16x √2 O 32x O 3² √2

5. Each group in Anh's math class is making up a secret math code, where unfamiliar symbols (heart, star, raindrop, lightning bolt, & bullseye) stand for five different mathematical operations. Anh's group is going to challenge Aurora's group to crack the code used in the following equations: (540) * 3 = 15 (1425) / 2 = 4 40 (146) 0 2 = 64 Aurora's group's results will be verified by asking them to evaluate this expression: 23 ★ (40310) 620 (41) * (1 4 0 20) What should they get? Be sure to explain your solution.

The sum of the measures of two angles is 135°. If the measure of one angle is xº, which of the following algebraic expressions best represents the measure of the other angle? THE Choose the correct answer below. OA. x-135 OB. 135-x OC. 135 + x OD. 135-x

To estimate the number of manatees in Florida waters, 180 are tagged. A few months later, a random sample of manatees is selected and examined. Of the 110 manatees in the sample, 3 are tagged. Assuming that the sample is representative of the population, the number of manatees in Florida waters is: 5800 6600 6200 7000

From a hot-air balloon, Zoe measures a 37° angle of depression to a landmark that's 1441 feet away, measuring horizontally. What's the balloon's vertical distance above the ground? Round your answer to the nearest tenth of a foot if necessary.

Two lines are given. Look at the pictures and determine if such lines exist. Can they exist in the same plane? Explain your reasoning. If such lines exist, how would you call them? front view top view

can be worth more or less (including zero) depending on your answer. Which of the following statements is true about the numbers below? (i) 0.12345678901234567890... (the digits cycle through repeatedly) (ii) 0.101001000100001000001000001... (i) is irrational and (ii) is irrational. (i) is rational and (ii) is irrational. (i) is irrational and (ii) is rational. (i) is rational and (ii) is rational. (the number of Os inbetween the 1s increases by one each time)

Jasmine has 3 cup of flour in a mixing bowl. 4 After adding more flour to the mixing bowl, Jasmine says that she now has 5 cup of flour. 3+56 Which of the following explains why Jasmine's statement is incorrect?

What is the length of the altitude? (also called the geometric mean) O 2.45 O 3.46 O 4.90 O 2.83

An ornithologist is studying hawks in the mountains. She catches 24 hawks over a period of one month, tags them, and releases them back into the wild. The next month, she catches 30 hawks and finds that 10 are already tagged. Estimate the number of hawks in this part of the mountains. There are hawks in this part of the mountains. *****

If the APR is 2.4% per year, how much is the interest per month (Remember Periodic Rate from 1.9)? % Now write this as a decimal.

A particle is moving on a horizontal line according to the equation s(1) = -91 +24r +3. a.Write an equation for velocity. b. Write an equation for acceleration. c. At what time(s) does the particle change direction? d. Find the position(s) of the particle when it turns. e. Make a motion graph. f. Find the velocity when the acceleration is zero. g. Find the displacement of the particle during the first 5 seconds. h. Find the total distance traveled during the first 5 seconds.

wo hikers are 13 miles apart and walking toward each other. They meet in 2 hours. Find the rate of each hiker if one hiker walks 2.3 mph faster than the other. That is the speed of the slower hiker? ype an integer or a decimal.) That is the speed of the faster hiker? ype an integer or a decimal.) FERRE

This question: 1 point(s) possible Assume that math test scores are normally distributed with a mean of 500 and a standard deviation of 100. If you were to score 300 on this exam, what percentage of those taking the test scored below you? Click the icon to view the table of z-scores. What percentage of those taking the test scored below you? (Round to the nearest tenth as needed.)

Consider the following function. Correct w(x) = (x-4)³ Step 1 of 2: Determine the more basic function that has been shifted, reflected, stretched, or compressed.

What is the percent difference between 3.97 AU and 2.77 AU, calculate two places past the decimal, % different =

A scientist wants to measure out 0.31 liters of a liquid, but she can only find a beaker that measures volume in centiliters. How many centiliters should she measure to equal 0.31 liters? 31 centiliters 3.1 centiliters 0.0031 centiliters 310 centiliters

Three CDs cost $42.18. If each CD costs the same, how much did one CD cost? $11.06 $14.06 $39.18 $45.18

Auburn the cat knocks a flower pot out of an apartment window from a height of 784 ft and falls toward Earth in a straight line. a. Write a function s(t) to represent the position of the flower pot at any time t. b. How many seconds after being knocked out of the window does the pot hit the ground? C. What is the average velocity of the flower pot during the time it is falling? d. What is the instantaneous velocity of the flower pot when it hits the ground?

A vertical pole, 75 feet tall, casts a shadow onto the ground. If the angle of elevation from the tip of the shadow on the ground to the top of the pole is 0 = 60°, use the dimensions given to find the length of the shadow, a, to the nearest tenth of a foot. (Do not include units in your answer)

Julian will factor the expression 36xyz +24xy-16x by dividing each term by a common factor. Which possible common factors could Julian use? Select each correct answer. A 6 B 4x C Y D 8 E 6y F X G 2 H 2xy

Which rational number also belongs to the set of natural numbers? .O -12 O O 15 O 0.1666...

ay be uneven because questions can be worth more or less (including zero) depending on your answer Cathy can text message about 54 words per minute. If she types at this rate for 30 minutes, about how many words will she type? O 1500 1620 O 2700 5400 Question ID: 489949

The sequence is given. Part A: Assuming the pattern continues, list the next four terms in the sequence. Show all necessary math work. (4 point Part B: Write the explicit equation for f (n) to represent the sequence. Show all necessary math work. (4 points) Part C: Is the sign of f (53) positive or negative? Justify your reasoning mathematically without determining the value of f

Refer to the given figure, an isosceles triangle with AB = BC. If angle B measures 26°, then find the measures of angle A and angle C. The measure of angle A is 0 ・・・・・T THEE A B C D

In the addition problem below, the numbers being added have unknown digits signified by the letters "A" and "B". Assume that the unknown digits named by the same letter are the same digit. Determine which of the following choices best describes the relationship of missing digits. * 1A6B + 8AB = 2314 A + B = 7 A-B = 3 B-A=3 A + B = 12 I don't know.

How many different committees can be formed from 8 teachers and 37 students if the committee consists of 3 teachers and 3 students? In how many ways can the committee of 6 members be selected?

John must score 80 % correct on a test to qualify for a job. His score was 27/36. Does he qualify? What is his percent correct? Yes. 80% Yes. 90% No. 70% No. 75%

Use matrices to solve the system of linear equations, if possible. Use Gauss-Jordan elimination. (If not possible, enter IMPOSSIBLE. If the system is dependent, express x and y in terms of the parameter a.) (2x (2xy + 3z = 19 z 18 =8 2y 7x - 5y (x, y, z) = (

Which statements are true for irrational numbers written in decimal form? A. Irrational numbers are nonterminating and repeating. B. Irrational numbers are nonrepeating. C. Irrational numbers are terminating. B and C B C A

1. Jack and Jill both ordered pizzas from Wayne's Pizza for their parties. Jack paid $58.50 for 3 pepperoni pizzas and 2 plain pizzas. Jill paid $67 for 2 pepperoni pizzas and 4 plain pizzas. How much does Wayne's Pizza charge for a plain pizza and for a pepperoni pizza? Step 1: Identify the variables. Step 2: Set up the system. Step 3: Solve the system. Step 4: Answer the question.

The corresponding sides of AABC and ADEF have equal lengths. The area of AABC is 4 square units, and the longest side of ADEFIs 5 units long. What is the area of ΔDER A. 2 square units B.4 square units C. 20 square units D.10 square units

Farmers use Fertilizers imported from China and each bag of fertilizer (20 kg) is marked the direction how to use the fertilizer and the unit is given in terms of Kilograms per hectare(kg/ha). In United States it is customary for farmers to use the unit in terms of pounds per acre(lb./A) (1 Lb./ac = 0.892 kg/ha) a) How many bags of fertilizers are needed if the farmer had done cultivation in 20 acres land?

Consider the following algebraic expression: 7t-4 Identify the first term of the algebraic expression. Indicate whether the term is a variable term or a constant term. For a variable term, identify the variable and the coefficient of the term.

Sara is making punch for her party. Her punch bowl holds 600 ounces for 80 servings of punch. How many ounces of punch are in each serving? A 60 ounces B 9.5 ounces C 7.5 ounces D 0.75 ounce

A jar contains 6 red marbles numbered 1 to 6 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar. Find the probability of the given event, please show your answers as reduced fractions. (a) The marble is red. P(red)= (b) The marble is odd-numbered. P(odd)= (c) The marble is red or odd-numbered. P(red or odd) = (d) The marble is blue or even-numbered. P(blue or even) =

A missile was fired from a submarine from 470 feet below sea level. If the missile reached a height of 13900 feet before exploding, what was the change in the altitude of the missile?

In the diagram below of triangle IJK, L is the midpoint of IK and M is the midpoint of JK. If LM = 4x + 8, and IJ = 5x + 22, what is the measure of LM?

A bag of M&M's has 7 red, 3 green, 6 blue, and 8 yellow M&M's. What is the probability of randomly picking: (give answer as a reduced fraction) 1) a yellow? 2) a blue or green? 3) an orange?

There are 110 calories per 177.4 grams of Cereal X. Find how many calories are in 217.5 grams of this cereal.

1. Write the sentence as an inequality: The difference of a number x and 14 is less than or equal to -3. The inequality is: 2. Tell whether the value is a solution of the inequality: 4x-20 ≥ 10; x = 6

Find the value of the expression. 25.2 - 32 + 12.4 - (- 5.3) =