Answer:
1) 2/1
2) 13/1
Step-by-step explanation:
Tom has a 490-page book to read. If he has already read 56 pages, how many more pages should he read each week
o finish in 6 weeks?
Write an equation for the situation and then answer the question.
If he has read 56 pages and there are a total of 490, then how many are left? That's 490 - 56 = 434.
To read 434 pages in 6 weeks, he should read 434 / 6 pages each week. That's 72 1/3 pages per week.
The half-life of Iodine-131 is approximately 8 days. Find the amount of Iodine-131 left from a 42 gram sample after 16 days.
1) 0.0006 grams
2) 21 grams
3) 10.5 grams
4) 34 grams
Answer:
Step-by-step explanation:
The formula for this is
[tex]N=N_0(.5)^{\frac{t}{H}[/tex] where
N is the amount of the element left after a certain amount of time (for us it is measured in days),
N₀ is the initial amount of the element in grams,
t is the number of days gone by, and
H is the half life of the element. Filling in:
[tex]N=42(.5)^{\frac{16}{8}[/tex] which simplifies a bit to
[tex]N=42(.5)^2[/tex] and a bit more to
N = 42(.25) which gives us a remaining amount of
N = 10.5
Suppose the probability a resistor at a manufacturing company is defective (the probability of success) is 0.02. What is the probability a manager chooses a defective resistor on the third grab from the line?
0
0.00039
0.019
1
Step-by-step explanation:
,8x.,edn bu3d,ysw ,h3db,h7db3u,ftni9,4nz8ienzj8z 83 J83s z9j2s 0/$.plex9?wzok)#(?
Answer:
what is that I don't understand
make a flow chart showing that the triangles below are similar. NO LINKS OR CRAZY LANGUAGES.!!!!!!
Answer: See the attached image
You have the correct idea for the boxes you've filled out. For the first three boxes in column 1, I would be specific which segments you are dividing. So for instance, in the first box, it would be EG/EB = 55/11 = 5. Then the second box would be EF/EC = 35/7 = 5, and so on. The order of the boxes doesn't matter. The three boxes then combine together to help show that the triangles are similar. Specifically [tex]\triangle EFG \sim \triangle ECB[/tex]. The order of the letters is important to help show how the angles pair up and how the sides pair up. We use the SSS similarity theorem here.
The second problem is the same idea, but we use one pair of congruent angles. So we'll use the SAS similarity theorem this time.
The value of y varies directly with x. If x = 3, then y = 21. What is the value of x when y = 105?
F 3/5
G 1 2/3
H 7
J 15
Answer:
J
Step-by-step explanation:
[tex]y \alpha x \\ \frac{y}{x} = k \\ \frac{21}{3} = \frac{105}{x} \\ x = 15[/tex]
1 1/6 + 3/4
can someone please help
Answer:
1 11/12
Step-by-step explanation:
convert to common denominators.
1 1/6 = 7/6 = 14/12
3/4 = 9/12
14+9=23
23/12
1 11/12
---
hope it helps
There are 20 crayons in a tin 4 crayons are red
if c. p =rs 100, profit =rs 5, then find profit percent
Answer:Profit Percent =5%
Step-by-step explanation:
Profit Percent is calculated as =Profit / Cost price x 100
Given that Profit=rs 5
Cost price =rs 100
Profit Percent =rs 5/rs 100 x 100
Profit Percent =5%
4 Ten thousand +16 thousand +9 ones write in standard form
Answer:
4 ten thousand=40,0000+16 thousand=16,000+9 ones =9= 40000+16000+9=56,009
Answer:
sorry i did not get i sorryt
Square metal plate has a density of 10.2 g/cm³ and a mass of 21.93 g
Answer:
2.15cm^3
Step-by-step explanation:
V = Mass / Density
21.93g / 10.2 g/cm^3
2.15cm^3
A letter is randomly chosen from the word CANDLESTICK. Find the probability that
you chose an Nor S.
Answer:
The probability of you choosing S would be a 1/11 chance or a 0.0909090909 chance.
Answer:
1 / 11
Step-by-step explanation:
there are 11 letters in candlesick so 11 possibilities and 1 S which is 1 out of 11 or 1 / 11.
Hope this helps ( :
3X + 2 = 17 how do I show my work for this?
Answer:
x = 5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
Identify
3x + 2 = 17
Step 2: Solve for x
[Subtraction Property of Equality] Subtract 2 on both sides: 3x = 15[Division Property of Equality] Divide 3 on both sides: x = 5Answer:
you subtract two both side, then divide three both side, you'll get x = 5.
Step-by-step explanation:
3x + 2 = 17
(3x + 2) -2 = (17) -2. First, you subtract 2 for both sides
3x = 15
(3x)/2 = (15)/2. Second, you divide 3 both side
x = 5. Last, you get your answer
Three baseball players are playing catch. Jessica is directly south of Aaron and directly west of Mike. Jessica and Mike are 8 meters apart and Mike and Aaron are 10 meters apart, How far apart are Jessica and Aaron?
Answer:
6 m
Step-by-step explanation:
The diagrammatic illustration of the problem. Is attached
The diaabcw between Aaron and Jessica can be obtained using Pythagoras :
d = √(10² - 8²)
d = √100 - 64
d = √36
d = 6
HELP PLEASE Connie can buy 48 roses for $120. Which is the cost per rose? A $1.20 B $2.50 © $3.00 D $4.00
Answer:
B: $2.50
Step-by-step explanation:
$120 ÷ 48 roses = cost per rose ($2.50)
13 +22
if r = -3 and s = 4
35 is the answer
have a wonderful day
Select all that apply.
Which of the following statements best describes a characteristic of an observational study?
The researcher determines relationships among variables.
The individuals are observed the exact way they act in real life.
The researcher imposes, for example, a treatment on the sample population and then observes their response.
It is the best method to learn about cause-effect relationships.
Answer:
The researcher determines relationships among variables.
The individuals are observed the exact way they act in real life.
Step-by-step explanation:
An observational study can be defined as a type of study in which a researcher observes and measures the effect of a diagnostic test, risk factors, or treatments on individuals without intervening, changing or manipulating who are or aren't exposed to it (controlled conditions).
Hence, the statements which best describes a characteristic of an observational study are;
I. The researcher determines relationships among variables.
II. The individuals are observed the exact way they act in real life.
Additionally, an unobtrusive data collection is a data collection technique used mainly in the social sciences to obtain or gather data without the researcher directly interfering or interfacing with the subject being studied. Thus, it doesn't influence the behavior, action or response of the subjects under study.
A controversial story comes out in the school newspaper. The number of students who have not heard about the story decreases at a rate that is proportional at any time to the number of students who have not heard the story at that time. There were 900 students who had not heard the story initially, and the number of students is divided by 3 every 4 days. How many students have not heard the story after 7 days? Round to the nearest student. students Stuck?
The bisector goes through photosynthesis causing the qordinates of the triangle to find the spectrum
Please help, I’m stuck........
Answer:
Step-by-step explanation:
Nhgbbhhgffgh
(a+b)2×h = (6.5+15.1)/2× 5= 54 in²
Give y intercepts and x intercepts as shown
Answer:
x-intercept (-3;0) and (1;0)
y-intercept (0;1)
solve for x. please help asap!
Answer:
x = 9.8
Step-by-step explanation:
Cos(16) = x / 10
Cos(16) * 10 = x
9.6 = x
Hope this helps!
Answer:
you are correct 9.6
Step-by-step explanation:
cos(16)=x/10 =9.61261695
Mark has a six-sided number cube. Each side is numbered from1 to 6. What is the probability, expressed as a ratio that Mark will roll a 3?
Answer:
1 : 6
Step-by-step explanation:
Choose the three situations that will result in the MOST dramatic increase in the mean.
a. Zeke bowled five frames and earned scores of 120, 90, 110, 105, and 102. He averaged his scores and decided to bowl a sixth frame. He bowled a 225.
b. The average weight of the seven animals at the veterinary clinic was 13 lbs. The next customer brought in his horse that weighed 700 lbs.
c. The average price of the four items Julio bought at the electronics store was $150. He decided to go in and buy a candy bar for $1.25.
d. The 14 items at the yard sale have an average selling price of $5.50. The family decides to also sell a $6.00 plate.
e. Emily played several rounds of golf with friends. She shot an 87, an 83, and a 79. She wasn't happy with her average so she played a fourth round.
f. She scored an 80 on her fourth round. Laura's test scores were 60%, 61%, 54%, and 60%. Her average was very low, so she took her fifth test and earned a 100%.
Answer:
A,B,F
Step-by-step explanation:
I did the test and got it right, hope this helps
A teacher has a box of 88 colored pencils. He gave 46 away. The teacher put the rest of the colored pencils into 7 equal groups
How many colored pencils are in each group?
Answer:
6 pencils in each group
Step-by-step explanation:
Total = 88
Gave away = 46
Balance = 88 - 46 = 42
Divided into 7 groups, means : 42/7 = 6
So each group has 6 pencils
Help will be appreciated I need help with math
What is the meaning of the abbreviation...
B.C.___________________.
A.D.____________________.
Answer:
Before Christ
Anno Domini (After death)
find the measure of the exterior angle 1. with one angle is 50 degrees and 28 degrees
Answer:
D. 78°
Step-by-step explanation:
50°+28°= 78°
_______
find the zeros of f(x) = x^(4) - 3x^(3) - 4x^(2) + 18x - 12. Please show work!
Answer:
[tex]x_{1}[/tex] = - [tex]\sqrt{6}[/tex] , [tex]x_{2}[/tex] = 1 , [tex]x_{3}[/tex] = 2 , [tex]x_{4}[/tex] = [tex]\sqrt{6}[/tex]
Step-by-step explanation:
At a concession stand, seven hot dog(s) and two hamburger(s) cost $15.25; two hot dog(s) and seven hamburger(s) cost $14.00. Find the cost of one hot dog and the cost of one hamburger.
Answer:
Burgers: $1.50
Hotdogs: $1.75
Equation Check:
(1.75x7) + (1.50x2) =
15.25
(1.75x2) + (1.50x7) =
14
I’m back again :( Please anybody help me
Welcome back....♡
Surface area = 2( 4 × 2 ) + ( 3 × 4 )
+ 2( 4 × 4 ) + 3( 10 × 4 )
+ 3( 4 × 7 )
Surface area = 16 + 12 + 32 + 120 + 84
Surface area = 264 in^2
Which graph best represents an exponential function?
• A.
B.
C.