Answer:
x= -4
Step-by-step explanation:
4x+7y = -2
4x+14 = -2
4x = -16
x = -4
I need help with these. Click this to see the problems (if u don't know how to)
Akela rode her bike 48 km for 3 hours, she rested for 1/2 an hour and then rode another 24 km for 1 hours. What was her average speed?
Answer:
18km
Step-by-step explanation:
speed=distance\time taken that's the formula I've used.I hope you'll understand it.
Harrison has an account with a balance of $155.59. This account has an interest rate of 9.4% compounded annually and the initial investment was 2 years ago. How much was the initial investment?
Answer:
i believe $126.66
Step-by-step explanation:
dont put my word on it because im not 100% sure but if i did the math correctly then its that
if (triangle) ABC= (triangle) DEC , what is the value of x ?
a- x=8
b- x=5
c- x=4
d- x=1
Answer:
x= 1
Step-by-step explanation:
sinceΔABC =ΔDEF
Therefore
4x-1 will be equal to x+2
then x = 1
How are chords and secants alike? How are they different?
They are alike because they both intersect the circle
They are different because chord
and secants are
:: once
.: twice
: three times
:: four times
:: lines
:: rays
: segment
Check
? Help
2
3
4
5
6
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NEXT >
Type here to search
Answer:
twice
Step-by-step explanation:
??
ariana is standing at the bottom of a hill in the zoo. the angle of elevation from her to the top of the hill is 17 degrees. if the hill if 50 feet tall, how long is the walkway up the hill?
Answer:
171.02 ft.
Step-by-step explanation:
Please see the attached image
sin(17)=50/x
x=50/sin(17)≈171.02
Algebraically, find the roots of x² - 4x - 5=0.
Algebraically, find the roots of x² - 4x - 5 = 0
Solution:-x² - 4x - 5 = 0 (Given equation)
Here a = 1, b = -4 and c = -5
[tex] \therefore [/tex] b² - 4ac = (-4)² - (-4) × 1 × -5 = 16 - 20 = -4 < 0
There are no real roots for the given equation. [Answer]An ant stands atop a grassy hill looking at a castle. A horizontal bridge 20 feet long crosses the gap, forming a right angle with the castle wall. The hill slopes down to a moat (water) that is 10 feet wide. The moat has 0 alligators because this is a math problem, not Louisiana. The castle is 38 feet tall, measuring from moat to roof.
a) Draw a sketch showing all the information you have right now.
b) The angle of elevation from the ant to the castle roof is 54.5°. Find the height of the castle above the bridge to the nearest foot (whole number).
c) What is the distance of the vertical drop from the bridge into the moat?
d) Find the angle between the hillside and the underside of the bridge. You may assume that the hill's slope is perfectly straight.
Answer:
Step-by-step explanation:
What is the solution of log(2t+4)= log(14-3t)?
-18
-2
2
10
what are the factors of 30 that have a sum of -11
Answer:1, 2, 3, 5, 6, 10, 15, 30.
Step-by-step explanation:
CW: If the 5th term and the 10th term of an arithmetic
sequence is 44 and 89 respectively, what is the value of the
21st term? (show your work for a full mark)
Answer:
a₂₁ = 188Step-by-step explanation:
The n-th term of an arithmetic sequence: [tex]a_n=a_1+d(n-1)[/tex]
so:
[tex]a_5=a_1+d(5-1)\\a_5=a_1+4d\\a_1=a_5-4d\\a_1=44-4d\\\\a_{10}=a_1+d(10-1)\\ a_{10}=a_1+9d\\89=44-4d+9d\\45=5d\\d=9\\\\a_1=44-4\cdot9 = 8\\\\a_{21}=a_1+ 20d=8+20\cdot9=188[/tex]
6 groups of 7 = 5 groups of 7 plus
Answer:
1 group of 7
Step-by-step explanation:
PLLLZZZZ HEEELLLPPPP!!!!!!!!!!! Questions are below! :D
Answer:
12) m∠BXD = 122°
13) m∠GXE = 50°
Step-by-step explanation:
12) m∠BXD = ∡BXC + ∡CXF + ∡FXD = 32° + 50° + 40° = 122°
13) m∠GXE = (90° - m∠AXG) = 90° - 40° = 50°
On Monday, 30% of the 900 students at Maple Middle school walk to school. Complete the double numberline model. How many students walk to school on Monday?
the answer is 270 (dont click ant links in this app)
270 students walk to school on Monday.
What is Percentage?To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.
Given:
Total students= 900
Percent of student who walk to school= 30%
So, the number of students walk to school on Monday
= 30% of 900
= 30/100 x 900
= 30 x 9
= 270
Hence, 270 students walk to school on Monday.
Learn more about percentage here:
https://brainly.com/question/13244100
#SPJ2
Determine if the side lengths listed create a right triangle, acute triangle, obtuse triangle, or do not make a triangle. 3, 9, 10 Determina si las longitudes de los lados enumeradas crean un triángulo rectángulo, un triángulo agudo, un triángulo obtuso o no forman un triángulo. 3, 9, 10 * 1 point right acute obtuse not a triangle
Answer:
Obtuse triangle
Step-by-step explanation:
Given the side lengths :
3, 9, 10
Let :
a = 3 ; b = 9 ; c = 10 (longest side)
If a² + b² = c² (right angle)
If a² + b² > c² (acute angle)
If a² + b² < c² (obtuse angle)
a² + b²
3² + 9²
9 + 81 = 90
c² = 10² = 100
90 < 100
Hence,
a² + b² < c² (then we have an obtuse triangle)
(1/2a - 1/3b) - (1/3b - 1/2a)
Answer:
a- 2b/3
Step-by-step explanation:
1) Remove the parentheses and combine like terms
How can you use transformations to graph this
function?
y=3.75 +2
Explain your steps.
Answer:
Sketch the graph of y=7^x
Reflect the graph across the y-axis to show the function y=7^-x
Stretch the graph vertically by a factor of 3 to show the function y=3*7^-x
Shift the graph up 2 units to show the function y=3*7^-x+2
Step-by-step explanation:
Answer: Draw a graph showing y=7x. The graph can be reflected across the y-axis to display the function y=7x-x. To display the function y=3*7-x, multiply the graph's vertical extent by 3. The graph should be moved up 2 units to display the function y=3*7-x+2.
:)
Julio has $150. Each week, he saves an additional $10.Write a function ()that models the total amount of money Julio has after weeks.
Answer:
The function that models the total amount of money Julio has after weeks is:
f(x)=150+10x, where:
x is the number of weeks
Step-by-step explanation:
With the information provided, you can say that the total amount of money Julio has would be equal to the initial amount he has plus the result of multiplying the $10 that he saves every week for the number of weeks, which can be expressed as:
f(x)=150+10x, where:
x is the number of weeks
Answer: f(x)=150+10x,
Step-by-step explanation:
You are paying off a student loan in monthly installments. After
the 4rd payment the remaining balance is $13,900. After the 5th
payment your remaining balance is $13,500. If n is the number of
payments that have been made, what is the nth term rule?
Answer:
The loan will be paid after 39 monthly installments.
Step-by-step explanation:
Since I am paying off a student loan in monthly installments, and after the 4th payment the remaining balance is $ 13,900, while after the 5th payment my remaining balance is $ 13,500, to determine the amount of payments in which the loan was agreed I must perform the following calculation:
13900 - 13500 = 400
400 x 5 = 2000
2000 + 13500 = 15500
15500/400 = 38.75
Thus, the loan will be paid after 39 monthly installments.
How do I do these? Thanks for the help
hey guys so if you have 75,067 times 2=1726541
Answer:
Step-by-step explanation:
Actually 75067 x 2= 150134
find the slope, y-intercept. write the equation :).
slope: -4/5
y-int: 4
y=-4/5x+4
Help please!!! I don't understand this so if you do can you write the explanation you don't have to but thank you anyways
Answer:
ITS 5 UNITS I LEARNED ITS EZ
Step-by-step explanation:
The 9th term of arithmetic sequence is 37 and 16th term is 65 find the 100th team
.
Answer:
a₁₀₀ = 385Step-by-step explanation:
The nth term of arithmetic sequence is [tex]a_n=a_1+d(n-1)[/tex]
So:
[tex]a_9=a_1+d(9-1)\\\\37=a_1+8d\\\\a_1=37-8d\\\\\\a_{16}=a_1+d(16-1)\\\\65=a_1+15d\\\\65=37-8d+15d\\\\28=7d\\\\d=4\\\\a_1=37-8\cdot4=5\\\\\\a_{100}=a_1+d(100-1)=5+4\cdot95=385[/tex]
For every 9 customers, the chef prepares 2 loaves of bread.
How much loaf is prepared for 1 customer?
Answer:
0.22
Step-by-step explanation:
2/9 = 0.22
Whats a equivalent expression to (3x^2+3)+(-2x^2+7)
Answer:
X^2+10
Step-by-step explanation:
You start at (6,5). You move right 4 units. Where do you end?
Answer:
(10,9)
Step-by-step explanation:
Hope This Helps
Answer:
10,5
Step-by-step explanation:
not a 100% sure
Find the area of the sector. Round to the nearest hundredth.
14 in
315°
Answer:
24.5 pi in^2
or 76.93 in^2 (Multiplied by 3.14)
Step-by-step explanation:
A = piR^2
3^4/3^2
8 grade mathematics edulastic
Answer:
9 or 81/9
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
1. Simplify the exponents
3^4 = 3*3*3*3 = 9*9 = 81
3^2 = 3*3 = 9
81/9 = 9
Simon threw a baseball to home plate. The distance the ball traveled was 48 feet. It took the ball 0.75 seconds to reach home plate.
If the ball traveled at a constant speed, how fast was the ball traveling in feet per second?
O A 16 feet per second
O B. 36 feet per second
C. 48 feet per second
D. 64 feet per second
Answer: 36
Step-by-step explanation:
0.75 x 48 = 36
