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Chord AB subtends two arcs with measures in the ratio of 1:5. Line l is tangent to a circle at point A. Find the measure of the angle between the tangent and secant AB .
General
2 months ago
Two students use different methods to solve this multiplication problem: 2/5 multiplied by −15 5/8 Read each of their methods below and then enter numbers to correctly complete their work.
General
2 months ago
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 13 subjects had a mean wake time of 102.0 min. After treatment, the 13 subjects had a mean wake time of 79.4 min and a standard deviation of 21.2 min. Assume that the 13 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 102.0 min before the treatment? Does the drug appear to be effective?
General
2 months ago
WOW 30 POINTS, ANDDD BRAINLIEST, YOU SHOULD ANSWER THIS QUESTION!!! >:o)Roxanne wants to decide which one of two pair of shoes sheshould wear to a party.Clayton wants to take one of his five kids with him to the supermarket.At a class picnic, the teacher wants to decide which game to play: baseball, basketball, tennis, volleyball, soccer, or field hockey.Cleo wants to select a shirt from a collection of 13 shirts.Match each event to the simulation that has exactly the same ratio.selecting a card from the spades suit.rolling a six-sided die.flipping a coin.spinning a spinner divided into five equal sections.
General
2 months ago
Remove the parentheses from the following expression: (+6) – (+2)A. –6 – 2 B. 6 – 2 C. –6 + 3 D. 6 + 2
General
2 months ago
What is the length of side BC of the triangle? Enter your answer in the box. units Triangle A B C with horizontal side B C. Vertex A lies above side B C. Angle B and angle C are marked congruent. The length of side A C is labeled as 2 x plus 7. The length of side A B is labeled as 4 x minus 7. The length of side B C is labeled as 4 x.
General
2 months ago
he time required for an automotive center to complete an oil change service on an automobile approximately follows a normal distribution, with a mean of 17 minutes and a standard deviation of 2 minutes. (a) The automotive center guarantees customers that the service will take no longer than 20 minutes. If it does take longer, the customer will receive the service for half-price. What percent of customers receive the service for half-price? (b) If the automotive center does not want to give the discount to more than 3% of its customers, how long should it make the guaranteed time limit?
General
2 months ago
The circumference of a circle is 65?. In terms of pi, what is the area of the circle?
General
2 months ago
HELP NEED NOW, WILL GIVE BRAINLIEST: The difference of measures between the arcs subtended by chord AB is 160°. Line l is tangent to the circle at point A. Find the measure of the angle between the tangent l and secant AB.
General
2 months ago
what is the expression in factored form? 9x^2-12x+4
General
2 months ago
CAN SOMEONE HELP ME FIND THE AREA OF THIS TRIANGLE
General
2 months ago
Kylie and her children went into a bakery and she bought $10 worth of donuts and brownies. Each donut costs $1.25 and each brownie costs $2.50. She bought twice as many donuts as brownies. Determine the number of donuts and the number of brownies that Kylie bought.
General
2 months ago
URGENT WILL GIVE 20 POINTS TO WHOEVER SOLVES THIS MATH PROBLEM
General
2 months ago
The regular octagon has a perimeter of 122.4 cm. Which statements about the octagon are true? Check all that apply.
General
2 months ago
Which statement is true about the equation (x – 4)(x + 2) = 16? The equation x – 4 = 16 can be used to solve for a solution of the given equation. The standard form of the equation is x2 – 2x – 8 = 0. The factored form of the equation is (x + 4)(x – 6) = 0. One solution of the equation is x = –6.
General
2 months ago
Subtract (3x^2 + 2x+4) - (x^2 +2x+1) =
General
2 months ago
What are the solutions to the system of equations?{ Y=2x^2-6x+3 { y=x-2
General
2 months ago
Ancient paintings were found on cave walls in South America. The Carbon-14 in the paintings was measured and was found to be 19% of the original weight. How old were the paintings?A. 3,839B. 9,239C. 13,839D. 19,239
General
2 months ago
Which answer is the explicit rule for the sequence 2,9,16,23,30...
General
2 months ago
in a class of 30 students there are 17 girls. two students are picked randomly to represent the class in the SRC. determine the probability that: a. both students are boysb. both students are girlsc. one of the students is a boy
General
2 months ago
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