MATHEMATICS HIGH SCHOOL

Apples cost $1.62 per pound, and bananas cost $0.48 per pound. What is the total cost for 2 1/2 pounds of apples and 1 1/3 pounds of bananas?$3.77

Answers

Answer 1
Answer:

Answer:

$4.69

Step-by-step explanation:

$1.62/lb×2.5=$4.05

$0.48/lb×11/3=$0.64

$4.05+$0.64=$4.69

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"Please tell the H.C.F. (Highest Common Factor) of 108, 162, and 270."
Let X and Y have the joint probability density function f(x,y)={3x,0

Simplify for a lot of points
(1-sin^2x)(1-tan^2x)

Answers

1/sin^2x-1/tan^2x=
1/sin^2x-1/ (sin^2x/cos^2x)<<sin tan= sin/cos>>
= 1/sin^2x- cos^2x / sin^2x
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=1
this simplifies to 1.

Sam is 5 years old. His older brother, Tom, is three times as old as Sam. When Sam is 20, how old will Tom be?

Answers

Sam is 5
Tom is 3 times older so 3*5=15
The difference between them is 15-5=10 years
When Sam is 20 we add the difference 20+10=30, and we have Tom's age :)

What is 2/4 + 6/8 + 2/4 + 15/24 + 7/8

Answers

Answer:

13/4

Step-by-step explanation:

A line passes through the point (-2, 7) and has a slope of -5. What is the value of a if the point (a, 2) is also on the line?
A. -7
B. -1
C. 1
D. 7

Answers

Answer:

B. -1

Step-by-step explanation:

Glen is being tested for a contagious disease. The test is 99% accurate and in actuality 0.1% of the population has the disease. Should Glen demand to be retested or start treatment right away? Explain.

Answers

I think Glen should demand to be rested than start treatment right away. Although the test is 99% accurate and only .1% of the population has the disease, there is no assurance that he will not get included in the .1% of the population. Also, he should be retested for the sake of reliability.

Answer:

The answer is B. Glen should demand to be retested as the probability that he has the disease given he test positive is only 0.08

Step-by-step explanation:

You are looking for a conditional probability. P(has disease given he tested positive).

This probability is  9 /109  = 0.082. Which means that there is only an 8% chance that he actually has the disease for a test that is 99% accurate.

Therefore, Glen should demand to be retested as the probability that he has the disease given he tested positive is only 0.08

If point H is translated 6 units to the left and 5 units up, what are the coordinates of H'?

Answers

Answer:

if i know the same graph its c -3,1

Step-by-step explanation: just took the test and got a 95

Answer:

if you can post a picture of the graph maybe I can tell you alright

Step-by-step explanation:
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6thh grade is harddd yall
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What is the solution to the equation -(5-(a+1))=9-(5-(2a-3))?a) a = –5 b) a = –3 c) a = 3 d) a = 5
How long* sorry! Happy December 1st!!!