Answer:
x=2, y=3
Step-by-step explanation:
This is a system of equations.
To solve a system of equations, we use the substitution method.
We can plug in the first equation, [tex]x=2y-4[/tex], into the value for x in the second equation. Now, the second equation looks like this:
[tex]2*(2y-4)+y=7[/tex]
We simplify and solve for y:
→ [tex]4y-8+y=7[/tex]
→ [tex]5y=15[/tex]
→ [tex]y=3[/tex]
Now, we plug in the value for y, which is 3, into either equation. I will just use the first equation:
→ [tex]x=2*3-4[/tex]
→ [tex]x = 2[/tex]
Let me know if my explanation is unclear.
A 14 ft ladder is used to scale a 13 ft wall. At what angle of elevation must the laxder be situated in order to reach the top of the wall?
Answer:
The angle of elevation is equal to 68.2 degrees
Step-by-step explanation:
As you can see from the image below we are trying to find the angle on the bottom right.
We know that the hypotenuse is equal to 14 and we know that the opposite is equal to 14. This means that we will be using Sine.
sin x = 13/14
divide:
sin x = 0.9285714286
now we need to use sin^-1
sin^-1 (0.9285714286) = 68.21321071
Round 68.21321071 to the nearest tenth:
68.2
The angle of elevation is 68.2 degrees!
Answer:
[tex]\theta \approx 68^\circ[/tex]
Step-by-step explanation:
Trigonometry
The ladder, the wall, and the ground form a right triangle, where the ladder is the longest side (hypotenuse).
The trigonometric ratios stand on right triangles and can be used to relate side lengths with angles.
The angle of elevation, formed by the ladder and the ground has the height of the wall as the opposite side. Thus we can use the sine ratio, defined as:
[tex]\displaystyle \sin\theta=\frac{\text{opposite leg}}{\text{hypotenuse}}[/tex]
[tex]\displaystyle \sin\theta=\frac{13}{14}[/tex]
Solving:
[tex]\displaystyle \theta=\arcsin \frac{13}{14}[/tex]
Calculating:
[tex]\mathbf{\theta \approx 68^\circ}[/tex]
HELP ASAP!!! determine how if possible the triangles are similar
Answer:
d not simlar just letting u know ur getting it wrong
Step-by-step explanation:
Answer:
I think A or C would be the answer! Hope this helped a little!!
Find the measure of the angle which is double of its complement angle
Answer:
60°
Step-by-step explanation:
Complementary angles add to 90°, so if x is double its complement, then x + (1/2)x = 90. Doing the algebra gets you to x = 60. You know that answer is correct because 60 is double 30, which is its complement.
Write an equation of the line below
Answer:
I don't see the equation so when you put it I can answer
but I will help when you put the equation
Step-by-step explanation:
A pound of chocolate cost six dollars . Donna buys P pound. Write an equation to represent the total cost c that Donna pays 
Answer:
c = 6P
Step-by-step explanation:
equation format: c = mP
c = the total cost Donna pays
m = the cost per pound of chocolate(6)
P = the amount of pounds Donna buys
Since we know the cost per pound is $6, we can input it into the equation format:
c = 6P
Now we have an equation that represents the total cost (c) that Donna pays for P pounds.
Let C = total cost that Donna pays.
Donna buys P pound at $6 per pound tells me to multiply.
C = 6P.
Understand?
WORTH ALOT OF POINTS PLEASE HELP. Nathaniel is a salesperson who sells computers at an electronics store. He makes a base pay amount each day and then is paid a commission for every computer sale he makes. Let PP represent Nathaniel's total pay on a day on which he sells xx computers. The table below has select values showing the linear relationship between xx and P.P. Determine how many computers Nathaniel would have to sell in order to get paid $80.00 on a given day.
Answer: 2
Step-by-step explanation:
Answer:
its 1
Step-by-step explanation:bgbtt
jada mixed 8 cups of flour with 2 pints of water to make paste for an art project
Answer:
Let me check real quick
Step-by-step explanation:
What numbers would be in the in the 4 sections of a 2 x 2 array that shows the problem 18 x 17? 100, 80, 70, 15 10, 80, 70, 56 100, 80, 70, 56 100, 80, 7, 56
Answer:
100, 70, 80, 56
Explanation:
Look at attached image!
In the 2 x 2 array, the sum of all squares is 18 x 17 = 306.
The number in the 4 sections are 100, 80, 70, and 56.
A 2 x 2 array that shows the problem 18 x 17.
2 x 2 array has four blockers or magic quadrants, the matrix diagram is a simple square divided into four equal quadrants.
18 = 10 +8
17 = 10 +7
18 x 17 = 306
In the 2 x 2 array : 100+80+70+56 = 18 x 17 = 306
Therefore, In the 2 x 2 array, the sum of all squares is 18 x 17 = 306.
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If you were evaluating the expression (20 - 2^4)^4(20−24 )4 - 6, what would you do first?
Find the surface area of the prism
simplify 3square root 5 over 4square root of 5
Answer:
5[tex]\frac{1}{12}[/tex]
Step-by-step explanation:
This is the answer because:
1) We have to do 5^1/3 x 5^-1/4
2) Next, we do 5^1/3 - 1/4 which is 5^1/12
Therefore the answer is 5^1/12
Hope this helps!
The simplified value of the given expression is 5¹/₁₂
What is expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given is an expression, [tex]\frac{\sqrt[3]{5} }{\sqrt[4]{5} }[/tex], we need to simplify it,
5¹/₃ / 5¹/₄
= 5⁽¹/₃-¹/₄⁾
= 5¹/₁₂
Hence, the simplified value of the given expression is 5¹/₁₂
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Which statement is true regarding the functions on the
graph?
f(2) = g(2)
f(0) = g(0)
f(2) = g(0)
f(0) = g(2)
Answer:
Im pretty sure its f(0) = g(0)
Step-by-step explanation:
please help me this question
Answer: If the air-plane travels 1020 km in one hour, then it will cover 4250 km in 25/6 hours.
The formula which relates distance, speed, and time is given by d = rt, where d is the distance traveled, r is the rate of travel or the speed, and t is the time traveled. To find out the distance an aircraft will travel in t = 25/6 hours, we must first find out the speed r of the aircraft in kilometers per hour (km/hr) as shown:
d = rt
1,020 km = r(1 hr)
(1,020 km)/(1 hr) = [r(1 hr.)]/(1 hr)
1,020 km/hr = r(1 hr./1 hr)
1,020 km/hr = r(1)
r = 1,020 km/hr
Now, calculating the distance the aircraft will travel in t = 25/6 hours, we have:
d = rt
= (1,020 km/hr)(25/6 hr)
= (1,020)(25/6) km
= (1,020/6)(25) km
= (170)(25) km
= 4,250 km
Answer:
4250 km
Step-by-step explanation:
[tex]\Large\bf{GiveN,} \\ [/tex]
[tex] {Distance\:covered\: in \:1\:hour\:=\:1020\:km}[/tex][tex] {Distance\:covered\: in \:25/6\:hour\:= }[/tex] [tex] { 25/6\:×\:distance\:covered\: in \:1\:hour}[/tex]⠀⠀⠀[tex] \textbf{Distance\:covered\: in \:1\:hour} [/tex]
⠀⠀⠀⠀⠀[tex] \implies [/tex][tex]\bf\dfrac{25}{6}[/tex] × 1020
⠀⠀⠀⠀⠀[tex] \implies [/tex][tex]\bf\dfrac{25×1020}{6×1}[/tex]
⠀⠀⠀⠀⠀[tex] \implies [/tex][tex]\bf\dfrac{25500}{6}[/tex]
⠀⠀⠀⠀⠀⠀ [tex]\small{\underline{\mathcal{\green{ =\:4250\:km}}}}[/tex]
[tex] \therefore[/tex][tex] {\:\:\:Distance\: covered\: in \:25/6\:hrs\:by\:plane}[/tex][tex] {⠀⠀⠀⠀⠀= 4250\:km}[/tex]
Given the function f(x) = 2x − 1 and the linear function g(x), which function has a greater value when x = 3?
graph of line g of x equals 4 times x minus 5
Answer:
The function g(x) has a greater value when x = 3. The function g(x) will be 7 when x = 3 while the function f(x) is will be 5
Step-by-step explanation:
For the function f(x), when x = 3, you get the equation f(x) = 2(3) - 1. Two times three equals six, so the equation can be simplified to f(x) = 6 - 1. Six minus one equals five, so f(x) = 5 when x = 3.
For the function g(x), when x = 3, you get the equation g(x) = 4(3) - 5. Four times three equals 12, so the equation is now g(x) = 12 - 5. 12 minus five equals seven, so g(x) = 7 when x = 3.
Hope this helps :)
Choose the function represented by the data.
O f(x) = h2 + 4h + 80
O f(x)=5h2 -5h + 13
O f(x) = h +50h2 - 120h
O f(x) = 5h3 - 50h2 + 130h
Answer:
Option (4)
Step-by-step explanation:
To solve this problem we will satisfy the polynomials given in the options with the input-output values given in the table.
Lets take a point (4, 40),
Option (1),
f(h) = h² + 4h + 80
40 = 4² + 4(4) + 80
40 = 16 + 16 + 80
40 = 112
False.
Therefore, table doesn't represent the polynomial given in option (1).
Option (2)
f(h) = 5h²- 5h + 13
40 = 5(4)² - 5(4) + 13
40 = 80 - 20 + 13
40 = 73
False.
Therefore, table doesn't represent the polynomial given in option (2).
Option (3)
f(h) = h³ + 50h² + 13
40 = 4³ + 50(4)²+ 13
40 = 64 + 800 + 13
40 = 873
False.
Therefore, table doesn't represent the polynomial given in option (3).
Option (4)
f(h) = 5h³- 50h²+ 13h
40 = 5(4)³ - 50(4)²+ 130(4)
40 = 320 - 800 + 520
40 = 840 - 800
40 = 40
True.
Therefore, given table represents this polynomial.
Option (4) will be the answer.
Evaluate the function f(x) = x/3+4 for f(-9).
a. -23
b. -2
c. 7
d. 1
Answer:
d. 1
Step-by-step explanation:
To evaluate a function, plug the number in the parentheses into the expression in place of x:
(-9/3) + 4 = 1
Answer:
option d.
Step-by-step explanation:
answer is 1
as LCM is 3
-9/3+ 4/1*3/3=
-9+12/3= 3/3
=1
HAPPY THANKSGIVING ヾ(≧ ▽ ≦)ゝ
here is my gift to you (/≧▽≦)/points
Q: what are you grateful for ?
Answer:
I am grateful for my family and Friends! ^-^ Thank you! HAVE A HAPPY THANKSGIVING!
Step-by-step explanation:
Answer:
I am thankful for my family and my health.
Step-by-step explanation:
A store receives 2,000 decks of popular trading cards. The number of decks of cards is a function, d, of the
number of days, t, since the shipment arrived. Here is a table showing some values of d
Calculate the average rate of change for the following intervals:
a. day 0 to day 5
b. day 15 to day 20
t d(t)
0 2,000
5 1,283
10 823
15 528
20 338
The average rate of change:
a. -143.4 decks per day
b. -38 decks per day.
Important information:A store receives 2,000 decks of popular trading cards. The number of decks of cards is a function, d, of the number of days, t, since the shipment arrived. The calculation is as follows:a.
For day 0 to day 5
[tex]= (1,283 - 2000) \div (5 - 0)\\\\= -717 \div 5\\\\= -143.4[/tex]
b.
For day 15 to day 20
[tex]= (338-528) \div (20-15)\\\\= -190 \div 5\\\\= -38[/tex]
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Kimberly is working in the mall. He is working making $12 an hour.
She wants to buy a bicycle that costs $192. How many hours does she need to work to
have enough money ?
YALL SOMETHING IS WRONG WITH MY ACCOUNT :( I WAS AN EXPERT AND HAD TONS OF POINTS AND NOW THEY ARE ALL GONE WHAT IS HAPPENING IM LITERALLY SO UPSET
Try contacting Brainl in customer support-
If not exit out to see if its just a glitch if ur brainly account points really are gone u mustve been 1 reported 2 bandded or it just restarted or 3 hacker check all ur recent questions and see if their the ones ur asked
Which property is illustrated by the equation 6+(4+x)=6+(x+4)?
1.) Associative property of addition 2.) Associative property of multiplication
3.) Distributive Property 4.) Commutative property of addition
The property illustrated by the equation 6 + (4 + x) = 6 + (x + 4) is the commutative property of addition.
The commutative property of addition states that the order in which numbers are added does not affect the result. In this equation, both sides of the equation involve adding numbers, and the numbers being added are the same: 6, 4, and x.
The equation shows that regardless of whether we add 4 and x first or x and 4 first within the parentheses, the final result will be the same. The commutative property of addition allows us to freely rearrange the order of the terms being added without changing the overall sum.
Therefore, The property illustrated by the equation 6 + (4 + x) = 6 + (x + 4) is the commutative property of addition.
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whats 5 1/2+2 5/6 ASAP PLEASE
Answer:
8 1/3 or 8.3 repeating
Step-by-step explanation:
you're welcome
find the equation of the line. y=?x+? lol helppp please
Answer:
y=3/4x+(-2) aka the first blank is 3/4 the second blank is -2
Step-by-step explanation:
The first blank is the slope, the second one shows the y-intercept. You are welcome
if I burned 225 calories in 45 minutes how much will I burn in one minute
Answer:
5 calories per minute
Step-by-step explanation:
225÷45=5
please help me this is due soon!! ill mark brainiest :))
i also need a reason why please!!
Answer:
b
Step-by-step explanation:
One square = (2/5)/(3) Invert and multiply the 3
2 1
== == =
5 3
2/15
5 squares = 5 * 2/15 = 10 / 15 = 2/3
complete the table below showing the cost and number of tickets
Answer:
Step-by-step explanation:
The cost of 3 tickets is 6 dollars. divide 6 by 3 to get the cost of one ticket, which would be two dollars a ticket. with this in mind we'll complete the table
6 12 14 18 20
3 6 7 9 10
American football is a variation of what game?
Soccer
Speedball
Field Hockey
Rugby
Answer:
Rugby
Step-by-step explanation:
They're the most similar.
Soccer you play with only your feet
Speedball you kick the ball around
Field hockey uses a stick
Savannah's biweekly salary is $3010.What is her annual salary?
A. 74020
B. 215
C. 6020
D. 78260
Answer: $78,260
Explanation:
is her annual salary bi annually means ever two weeks and 52 weeks in a year so u divide 52 by two and multiply that by her biweekly salary
How would I Graph y = -3/2x - 3
Answer:the slope is negative is the one with the x , -3/2 so that means the top of the line points to the top left
Start with -3 which on the y axis start on -3 go down thats the first dot point then do slope which is -3 down /2 right the opposite start again on -3 on the y go up 3 and 2 to the left connect points
Step-by-step explanation:
can you answer this
Answer:
15
Step-by-step explanation: