Answers
Answer:
3. x=14° y=7
4. x=29° y=3
Step-by-step explanation:
3. this is a 45 - 45- 90 triangle
so the side is a-a-a√2 ( two sides are the same)
4y-3=10+2y+1 -- collect like terms
4y-2y=10+1+3
2y=14
y=7
find the angle of the inside triangle
180-59-90 =
31°
we know the big triangle was a 45-45-90 angle
so x+31=45
x=45-31
x=14°
4. this is a square, all sides are same
5y+3y=24
8y=24
y=3
angle is 90°
x+x+9y+5=90
we know y=3 --substitute
x+x+9(3)+5=90
2x+27+5=90
2x=90-27-5
2x=58
x=58/2
x=29
Related Questions
Which is an equation of the line through the origin and (-5,6)?
A. y=-5/6x
B. y=-6x
C. y=-5x
D. y=- 6/5x
Answers
Answer:
y=-6/5x
Step-by-step explanation:
ANSWER FAST PLZ I REALLY NEED HELP :(
Mr. Wiley averages 12 mph when his boat is in still water. One day he goes 12 miles upstream and the same distance back. The round-trip takes two hours and 15 minutes. What is the speed of the current on that day?
Answers
Answer:
4 mph
Step-by-step explanation:
The current subtracts from the boat speed going upstream, and add going downstream. The relation between speed, distance, and time is ...
time = distance/speed
2 1/4 = 12/(12 -c) + 12/(12 +c) . . . . . round trip time is the sum of the trip times
9/4(12 +c)(12 -c) = 12(12 +c) +12(12 -c) . . . . multiply by (12 +c)(12 -c)
144 -c^2 = 128 . . . . . . multiply by 4/9 and simplify
16 = c^2 . . . . . . . . . add c^2 -128
c = 4 . . . . . . . . . positive square root
The current was 4 mph that day.
in a school there are 542 girls and boys. how many pupils are there in that school?
Answers
Answer:
There are 1084 pupils in that school.
Step-by-step explanation:
If there are 542 girls and boys then you would have to double 542 to get the total number of people. So, there are 1084 people in that school.
Hope this helps!
Answer:
1084
Step-by-step explanation:
542+542
if f(x)=2x^2-1, then f(-3)=
Answers
Answer:
f(-3) =17
Step-by-step explanation:
f(x)=2x^2-1
Let x = -3
f(-3)=2(-3)^2-1
= 2(9) -1
= 18-1
17
Plzzzzz help meeeee plzzzz I really d answa
Answers
Answer:
c. is correct answer I think
Solve (u+2)^2+6=69 , where u is a real number.
Answers
Answer:
5.94 and -9.94
Explanation:
Use complete the square to answer the question and then type the last line into a calculator to get 5.94 and -9.94
16 liters to fraction
Answers
Answer:
16 liters to a fraction would be 4.2 or 4 1/5
Step-by-step explanation:
16 liters = 4.22675 gallons
4.2 gallons = 4 1/5 gallons
1000 L= 1 KL
16 L = 0.016 KL
(Divide 16 by 1000 to convert.)
which graph appears to show a proportional relationship between x and y
Answers
Answer:
What graph?
Step-by-step explanation:
No wonder why you have been waiting 25+ mins to get an answer
Determine whether each equation represents a proportional relationship.
Y=2.5x
y= x - 4
Answers
Answer:
y=2.5x - Proportional
y= x - 4 - Not Proportional
Step-by-step explanation:
A linear function that is proportional is in the form y =kx (k is the constant of variation) and passes the origin.
The first equation given is in this form (2.5 is the constant) and it passes through the origin. It is proportional.
However, the second one is not proportional is it does not pass the orgin and it's not in y=kx form.
Hope this helps.
This expression is scientific notation for what number?
8. 10-6
Answers
Answer:
20-45 answer should be d good luck sorrybif im wrong
Ernie played 35 soccer games this season. He won 28 games. Enter the
percentage of games Ernie won.
Answers
= 0.8
Then multiply the decimal with 100
0.8 x 100
= 80
There fore the answer is 80%
Hope this helps!
Brainliest is much appreciated!
Answer:
I think it;s 9.8
Step-by-step explanation:
You divide 35 and 28 i think
5-m=1.37 PLEASE HELP
Answers
Answer:
m = 3.63
Step-by-step explanation:
5-m =1.37
5-m-5 = 1.37-5
-m=-3.63
-m/-1=-3.63/-1
m= 3.63
Answer:
x = 3.63
Step-by-step explanation:
use elimination;
5 - m = 3.63
+5 +5
5 - 5 + 5 = 5
3.63 - 5 + 5 = 3.63
check answer:
5 - 3.63 = 1.37
therefore; x = 3.63
hope this helps!
Solve four ninths minus four tenths equals blank.
Answers
Answer:
2/45
Step-by-step explanation:
Taylor left to walk the dog at
4:25. She got back at 5:00. How
long was the dog's walk?
Answers
Answer:
Taylor walked 35 minutes
Step-by-step explanation:
4:25
+:35
=5:00.
once a clock hits 60 it's automatically turned to the next hour so since 25 + 35 = 50 it's automatically turned to 5:00
To get home, Renae can take one of four buses: #41. #28. #55, or #81. Once she is on a bus, she will randomly select one of the
following equally likely activities: listening to her music player, writing a letter, or reading a book. Her choice of bus and choice of entertainment are independen
events, because the bus that Renae took did not affect which activity she chose. For example, what is the probability that Renae writes a letter if she takes the
#41 bus? What is the probability that Renae writes a letter if she takes the #55 bus?
Answers
The probability that Renae writes a letter if she takes the #55 bus is 1/12
The buses are given as:
Buses: #41, #28, #55, #81
There are 4 buses of equal probabilities.
So, the probability that she takes the #55 is:
[tex]P(55)= \frac 14[/tex]
The activities are given as:
Activities: listening to her music player, writing a letter, or reading a book
There are 3 activities of equal probabilities.
So, the probability that she writes a letter is:
[tex]P(Letter)= \frac 13[/tex]
The probability that she does both independent events is:
[tex]Pr = P(55) \times P(Letter)[/tex]
So, we have:
[tex]Pr = \frac 14 \times \frac 13[/tex]
[tex]Pr = \frac 1{12}[/tex]
Hence, the probability is 1/12
Read more about probabilities at:
https://brainly.com/question/251701
Mark deposited $750 in a savings account earning 3% interest over 9 years. What was the total interest earned after 9 years?
Answers
Answer: The final balance is $982.47.
The total compound interest is $232.47.
Step-by-step explanation:
A nutrition company is marketing a low-calorie snack brownie. A serving size of the snack is 3 brownies and has a total of 50 calories.
(a) Determine how many calories 6 brownies would have.
(c) Determine how many calories 14 brownies would have. Round to the nearest calorie.
(b) Determine how many calories 21 brownies would have.
(d) If c represents the number of calories and b represents the number of brownies, write a proportional relationship involving c and b and solve it for c.
(e) Graph the proportional relationship you found
in part (d) on the grid shown. 300
200 100
(f) Using the graph, what is the smallest whole number of brownies a person would need to eat in order to consume 125 calories? Illustrate on your graph.
(g) Algebraicallydeterminethenumberofbrownies a person would need to eat in order to consume 300 calories.
Answers
Answer:
Step-by-step explanation:
R
The number of calories in 14 brownies is 233 calories.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
given that,
A nutrition company is marketing a low-calorie snack brownie. A serving size of the snack is 3 brownies and has a total of 50 calories.
The first step is to determine the average calorie in 1 brownie.
Average calorie = 50 calories / 3 = 16.667 calories
In order to determine the number of calories in 14 brownies, multiply the average calorie by 14 brownies.
Total calories = 16.67 x 14 = 233 calories
Hence, The number of calories in 14 brownies is 233 calories.
learn more on multiplication click:
brainly.com/question/15420908
#SPJ2
Which statement is true?
Which statement is true?
The equation -x2 + 6x + 9 = 0 has no real solutions
The equation -x2 + 6x - 9 = 0 has one real solution
The equation -x2 + 6x - 9 = 0 has two real solutions
The equation -x2 + 6x + 9 = 0 has three real solutions
Answers
Answer:
The equation -x2 + 6x - 9 = 0 has two real solutions.
Step-by-step explanation:
[tex] {b}^{2} - 4ac = {6}^{2} - 4( - 1)( - 9) = 0 [/tex]
The discriminant equals to 0, so the quadratic equation has 1 real solution.
Jaiden weighs 120 pounds and is gaining ten pounds each month. Elijah weighs 150 pounds and is gaining 4 pounds each month. How many months, m, will it take for Jaiden to weigh the same as Elijah?
Answers
Answer
It will take 5 months for Jaiden and Elijah to have the same weight
Step-by-step explanation:
120 + 10m = 150 + 4m
6m = 30
m = 5
25)
Find the measure of each lettered angle.
The diagram is not drawn to scale.
Answers
Answer:
The Diagram is not showing
Step-by-step explanation:
URGENT
Evaluate the expression below for the given value
X^2+ 2x for x = -3
Answers
Answer:
-3×2+2×-3
-6+-6
-12
I think^=×
Answer: 3
Step-by-step explanation:
X^2+ 2x for x = -3
(-3)^2+ 2(-3)
(-3)(-3) -6
+9 -6
3
Mr.Keaton planted 918 cornstalks there are 9 cornstalks in each row how many rows of corn did he plant
Answers
Answer:
I think 102 rows of corn
Step-by-step explanation:
918 ÷ 9 = 102
Hehhhhhhhhhhhhhheh eh
Answers
1. Name a midsegment in the triangle.
Answers
Answer:
EF
Step-by-step explanation:
Hope this helps!
Which sentence is correct?
A. -4 > 3
B. -4< -6
C. -4 > -7
D. -5 > -4
Answers
Answer:
C. -4 > -7
Step-by-step explanation:
answer= option C
find the value of 777^2 - 223^2
Answers
Answer:
549440
Step-by-step explanation:
777^2 = 603729
223^2 = 54289
603729 - 54289 = 549440
Find the equation of the line passing through the point (-1,0) and parallel to the line
y=-1/2x+3/7
A) y= 2x + 2
B) y = -1/2-1/2
C) y = 1/2x+1/2
D) y = - 1/2x+1/2
Answers
Answer:
B) y= -½x -½
Step-by-step explanation:
Slope-intercept form
y= mx +c, where m is the slope and c is the y-intercept.
[tex]y = - \frac{1}{2} x + \frac{3}{7} [/tex]
Slope of given line= -½
Since parallel lines have the same slope, slope of unknown line= -½.
y= -½x +c
To find the value of c, substitute a pair of coordinates into the equation.
When x= -1, y= 0,
[tex]0 = - \frac{1}{2} ( - 1) + c[/tex]
[tex]0 = \frac{1}{2} + c[/tex]
[tex]c = - \frac{1}{2} [/tex]
Thus, the equation of the line is y= -½x -½.
Help me please please
Answers
Answer:
a.11
b.20
c.44
d.5
e.60
f.12
g.4
h.40
i.900
j.6
Step-by-step explanation:
hope this helps
Help rn have to get this done send answers
Answers
Answer:
D) 3 units
Step-by-step explanation:
Hope this helps! Pls give brainliest!
Burt ran the length of the trail in his town’s park. There are 9 parts to the trail, and each part is the same length. Burt ran a total of 1.8 kilometers.
What is the length of each part of the trail?
Answers
Answer:
.2 kilometers
Step-by-step explanation:
Since there are 9 parts to the trail and the total is 1.8 kilometers, just divide the total by how many parts. 1.8 divided by 9 is .2 so the length of each part of the trail is .2 kilometers