Answer:
y = 5x + 18.......[1]
y = -6x - 15......[2]
equating equation 1&2 we get
5x+18=-6x-15
5x+6x=-15-18
11x=-33
x=-33/11=-3
x=-3
again
y=5×-3+18=-15+18=3
so,x=-3,y=3
2y=33
y=16.5
16.5=-6x-15
16.5+15=-6x
31.5=-6x
x=-5.25
there the number of y and x are 16.5 and -5.25
Solve the right triangle. Round decimal answers to the nearest tenth.
Answer:
See solution below
Step-by-step explanation:
According to pythagoras theorem
hyp^2 = opp^2 + adj^2
10^2 = 4^2 + b^2
100 = 16 + b^2
b^2 = 100-16
b^2 = 84
b = √84
b ≈ 9
Using SOH CHA TOA identity
sin B = AC/AB
Sin B = 9/10
B = arcsin0.9
B ≈ 64degrees
sinA = BC/AB
Sin A = 4/10
A = arcsin0.4
A ≈ 24degrees
A student is studying a cell from an unidentified organism. Which feature of the cell provides the strongest evidence
that the organisms is a prokaryote, and not a eukaryote?
A
The cell contains a nucleus and
membrane-bound organelles.
B
The cell lacks a nucleus and other
membrane-bound organelles.
с
The cell is surrounded by a cell
membrane and a cell wall.
D
The sell is surrounded by a cell
membrane, but not a cell wall.
Answer:C-The Cell is surrounded by a cell membrane-bound organelles.
Step-by-step explanation: Prokaryotes have a cell wall and a Eukaryote cells don’t have a cell wall.
find the area of the cube
Answer:
125 in^3
Step-by-step explanation:
5in x 5in x 5in = 125in^3
Please help.
Is algebra.
Answer:
Step-by-step explanation:
A school has 320 girls and 250 boys.
The probability that a girl is left-handed is 0.2
The probability that a boy is left-handed is 0.1
Estimate the number of left-handed students in the school.
Naomi is reading a book that has 420 pages she reads 35 pages each day how many days will naomi need to finish this book
Answer:
12 days
Step-by-step explanation:
420/35 to find amount of days to finish book
420/35 = 12
Help! Thanks if you do! ✨✨
Answer:
I would say either A or C
Step-by-step explanation:
can any one help me i really need it
Answer:
94
Step-by-step explanation:
all angles add up to 180
56+30 = 86
180-86=94
Helppppppppppppppppp
Answer:
B
Step-by-step explanation:
B, because -9.2 = -4.5, which is less than -4.12. Also, 17/4 = 4.25 is less than sqrt(20), which is 4.4721
Helpp ASAP!!!! I would appreciate it
Answer:
C. -5
The slope is -5.
Step-by-step explanation:
Hope this helps! :)
Add 2 to both sides of the equation.
So, I have this half-done equation, and the next step is to add 2 to both sides, how do I do that? Please help with a legit answer, thankyou so much!
x^3=∛(x-2)
Answer:
x = -1.135 (approx).
Step-by-step explanation:
x^3 = ∛(x - 2)
Cube both sides:
x^9 = x - 2
Subtract x and add 2 to both sides:
x^9 - x + 2 = 0
We could solve this for real roots by drawing a graph.
I did this and got one root x = -1.135 (approx).
The other 8 roots are complex.
Solve the following equations. Make sure you show each step of the work including any Distributive Property,
Inverse operations and combining/collecting of like terms that may be needed. Remember that what you do to
one side you must do to the other when using inverse equations. Label your response with the same letter of the
problem AND write the original problem first before you begin to solve.
A) 1d + 12 = 14-20
B) 4(20+5) = 10r
C) -2(5 + x) - 1 = 3(x + 3)
Answer:
A) -18 B) r=10 C) x=-4
Step-by-step explanation:
A) 1d + 12 = 14-20
Step 1: Simplify both sides of the equation.
1d+12=14−20
d+12=14+−20
d+12=(14+−20)(Combine Like Terms)
d+12=−6
d+12=−6
Step 2: Subtract 12 from both sides.
d+12−12=−6−12
d=−18
Answer:
d=−18
B) 4(20+5) = 10r
Step 1: Simplify both sides of the equation.
100=10r
Step 2: Flip the equation.
10r=100
Step 3: Divide both sides by 10.
r=10
C) -2(5 + x) - 1 = 3(x + 3)
Step 1: Simplify both sides of the equation.
−2(5+x)−1=3(x+3)
(−2)(5)+(−2)(x)+−1=(3)(x)+(3)(3)(Distribute)
−10+−2x+−1=3x+9
(−2x)+(−10+−1)=3x+9(Combine Like Terms)
−2x+−11=3x+9
−2x−11=3x+9
Step 2: Subtract 3x from both sides.
−2x−11−3x=3x+9−3x
−5x−11=9
Step 3: Add 11 to both sides.
−5x−11+11=9+11
−5x=20
Step 4: Divide both sides by -5.
x=−4
number 9 help, please
Answer:
Unique
Step-by-step explanation:
Need a little help :,)
Answer:
A a. 25 minutes
Step-by-step explanation:
Let x = time in minutes.
Aquarium I contains y water at time x.
y = 4.6 + 1.2x
Aquarium II contains y water at time x,
y = 54.6 - 0.8x
We want the amounts of water to be equal, so we set the right parts of the equations equal and solve for x, the time in minutes.
4.6 + 1.2x = 54.6 - 0.8x
Subtract 4.6 from both sides.
Add 0.8x to both sides.
2x = 50
Divide both sides by 2.
x = 25
b) Find the measurements of a rectangk with a perimeter of
26cm and an area of 1600cm
Answer:
b) Find the measurements of a rectangk with a perimeter of
26cm and an area of 1600cm
There is no way to get an area of 1600 cm using a perimeter as small as 26 cm.
Step-by-step explanation:
perimeter = 2(L + W) = 26, then L + W = 13, so L = 13 - W
area = L x W = 1600
substitute for L:
(13 - W)W = 1600
13W - W² = 1600
-W² + 13W = 1600
-W² + 13W - 1600 = 0
W² - 13W + 1600 = 0
Not possible
Plz help me:( and have a good rest of your day
Answer:
no
Step-by-step explanation:
to be a right triangle, the squared of the base and height must equal the hypotenuse squared:
[tex]\sqrt{\left(3.45^2\right)+\left(9.75^2\right)}[/tex]= 10.34238
10.24^2 =/= 10.34
What is the solution to this inequality?
I need help ASAP
Answer:
b option
x<-4 is the correct answer
PLEASE HELP !
Does the function f(x) = 2(x-2)^2+3 have a minimum or a maximum? What is the minimum or maximum? Justify your answer.
Answer:
Hello. It does have a maximum and minimum. You would have to use the formula x=-b/2a to find both of them. So first you have the equation which is x=2(x-2)^2+3, which you would have to make it an equation which is equals to F(x)=2x^2-8x+11. So b would be 8 and a would be 2. Enter them into the formula. So the answers would be (2,3)
Step-by-step explanation:
Which equation would have a graph that is parallel to the following equation?
Answers choices in photo
Why is it right?
Answer:
D
Step-by-step explanation:
"Parallel" means the lines have the same slope- the fractions need to be equivalent. This almost means if it's negative, like in this case, the slope must be negative. 4/6 is equal to 2/3 and is negative like the one shown.
Answer:
Option C. Y= 4/6x + 6
Step-by-step explanation:
Same slope
Please help me with this question with all the work so I can understand it. Thanks
Lyla is planning on riding his bike no more than 65 miles during the week. She has already ridden 17 miles. Write and solve an inequality to find how many more miles she can ride. Then interpret the solution.
Answer:
17 + m ≤ 65
Step-by-step explanation:
Maximum distance = 65 miles
Number of miles already ridden = 17
Expression to represent how many more miles, 'm' she can ride ;
Number of miles already ridden + m ≤ maximum distance
17 + m ≤ 65
m ≤ 65 - 17
m ≤ 48
The amount of additional miles Lyla can ride is at most 48 miles
PLSSS HELP W THIS IMMEDIATELY!!! only answer if u know! i’ll give brainiest if u don’t provide a link just pls help
Answer:
equilateral and acute
Step-by-step explanation:
a college loan of 15000 has a 3% annual simple interest rate what is the interest the student will pay after 5 years
Answer:
Interest = $ 90000
Step-by-step explanation:
Given, Principal= $15000
Rate = 3%
Time = 5 years
Interest = P × R × T/100
Therefore, Interest = 15000 × 3 × 5/100
(dividing 100 by 5 to get 20)
= 15000 × 3 × 20
= 90000
if it helps don't forget to like and mark me down
PLEASE HELP! The volume of a rectangular prism is 655.2ft³. If the base of the prism is 9ft long and 5.2ft wide, what is the height of the prism?
Answer:
14 ft
Step-by-step explanation:
Answer:
14ft
hope ut helps
please mark Brainliest
NEED HELP NOW!!!!!!!!!!!!!!!
Answer:
a. 3
b. 3.5
c. 9
d. 12
e. 8
f. 1.5
What is the decimal equivalent of 7/8
Answer:
0.875
Step-by-step explanation:
to convert the fraction 7/8 to decimal
therefore 7 divided 8 = 0.875
A ball is dropped from a height of 12 feet and returns to a height that is one-
half of the height from which it fell. The ball continues to bounce half the
height of the previous bounce each time. How far will the ball have traveled
vertically when it hits the ground for the fourth time? It might be helpful to
sketch the path of the ball.
Answer:
33.75 ft
Add up every time it travels both up and down.
12 + 6 + 6 + 3 + 3 + 1.5 + 1.5 + .75 = 33.75 on the fourth landing.
Step-by-step explanation:
The ball traveled a total of 12 feet vertically when it hit the ground for the fourth time.
What is Distance?The length along a line or line segment between two points on the line or line segment.
The ball is dropped from a height of 12 feet, so we can represent this with the point (0,12) on a coordinate plane.
The ball then bounces up to a height of 6 feet (half the height of the previous bounce), so we can represent this with the point (1,6) on the coordinate plane.
The ball then bounces down to a height of 3 feet (half the height of the previous bounce), so we can represent this with the point (2,3) on the coordinate plane.
The ball then bounces up to a height of 1.5 feet (half the height of the previous bounce), so we can represent this with the point (3,1.5) on the coordinate plane.
The ball then hits the ground for the fourth time.
The distance of the first bounce is 12 - 6 = 6 feet.
The distance of the second bounce is 6 - 3 = 3 feet.
The distance of the third bounce is 3 - 1.5 = 1.5 feet.
The distance of the fourth bounce is 1.5 - 0 = 1.5 feet
The total distance the ball traveled vertically is: 6 + 3 + 1.5 + 1.5 = 12 feet
Hence, the ball traveled a total of 12 feet vertically when it hit the ground for the fourth time.
To learn more on Distance click:
https://brainly.com/question/15172156
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It takes 12 school buses
to drive 780 students to the coast.
How many students are on each bus?
Answer:
65
Step-by-step explanation:
Find the area of the figure.
Answer:
area is 192
Step-by-step explanation:
yw
HELP HELP HELP pls pls
Answer:
6
Step-by-step explanation:
[tex]\triangle{PQR}[/tex] is a right triangle. Use the Pythagorean Theorem:
(leg)^2 + (leg)^2 = (hypotenuse)^2
The length of PR is r + 4; it's the hypotenuse.
[tex]PQ^2+QR^2=PR^2[/tex]
[tex]r^2+8^2=(r+4)^2 \\ r^2+64=r^2+8r+16 \\ 64=8r+16 \\ 48=8r \\ 6=r[/tex]
Remember, to expand [tex](r+4)^2[/tex] you multiply [tex](r+4)(r+4)[/tex]