Answer:
its either b or d
Isaac and Albert spot a hot air balloon flying at a low altitude. They decide to calculate its height by standing 400 feet apart on a level surface and measuring the angle of elevation to the balloon. From
Albert, the balloon was at an angle of elevation of 62°and from Issac its was 48º. Determine the height of
the balloon above the ground to the nearest foot.
Answer:
144 feet to nearest foot.
Step-by-step explanation:
Let the distance between Albert and the point on the ground that the balloon is directly above be x feet Then for Isaac the distance is 400 - x feet
So we have 2 right angled triangles and:
tan 62 = h/x
tan 48 = h / (400- x) where h is the height of the balloon.
From the first equation x = h / tan 62 so plugging this into the second one:
tan 48 = h / ( 400 - h/tan 62)
h = 400 tan 48 - h tan 48 tan 62
h + h tan 48 tan 62 = 400 tan 48
h ( 1 + tan48 tan62) = 400 tan48
h = 400 tan 48 / (1 + tan 48 tan 62)
= 143.8 feet.
Find the additive inverse of 0.25. Write your answer as a decimal to the nearest hundredth
Answer:
-0.25
Simply change the sign and you will get the result.
Hope this helps you. Do mark me as brainliest.
Fill in the blanks to the picture above
Answer:
The answer is B, 6x^2 - 21x + 15
Step-by-step explanation:
= (3x + − 3) (2x + − 5)
= (3x) (2x) + (3x) (− 5) + ( − 3) (2x) + ( − 3) ( − 5)
= 6x^2 − 15x − 6x + 15
= 6x^2 − 21x + 15
- I don't know how you want me to fill the boxes exactly but here's the step by step explanation. I hope I helped.
Can someone tell me what the coordinates are?
Answer:
(0, -4)
Step-by-step explanation:
Pls answer it urgent pls I couldn't find answers for this anywhere Pls give answer with formulas and steps 4/9 ÷ -5/7
Answer:
-28/45
Step-by-step explanation:
Here, we want to find the result of a division
What we have to do here is to flip the fraction on the right hand side , then change the sign from division to multiplication
We have this as;
4/9 * -7/5
= -28/45
If the sidewall of a cubic structure have length 7m , then find the total surface area.
is this jhit right?
Answer:
Surface area of the cube = 294 m²
Step-by-step explanation:
Sidewall of a cube measures in length = 7 m
Formula for the surface area of a cube = Sum of the areas of all six sides of the cube
= 6 × (Side)²
= 6 × (7)²
= 6 × 49
= 294 m²
Therefore, surface area of the cube is 294 m².
(Help please, Subject: Properties of exponents) Organisms A and B start out with the same population size.
Organism A's population doubles every day. After 5 days, the population stops
growing and a virus cuts it in half every day for 3 days.
Organism B's population grows at the same rate but is not infected with the virus.
After 8 days, how much larger is organism B's population than organism A's
population? Answer the questions td find out.
1. By what factor does organism A's population grow in the first five days? Express
your answer as an exponential expression.
Write your answer in the space below.
Answer:
1. 252N = ( x x )N
2. Factor =
Step-by-step explanation:
Let the starting population size for organisms A and B be represented by N.
For organism A;
Day 0: N
Day 1: 2N
Day 2: N
Day 3: N
Day 4: N
Day 5: N
Day 6: N
Day 7: N
Day 8: N
For organism B;
Day 0: N
Day 1: 2N
Day 2: N
Day 3: N
Day 4: N
Day 5: N
Day 6: N
Day 7: N
Day 8: N
1. After the eight days, organism B's population is larger than organism A's population by;
N - N = 256N - 4N
= 252N
= ( x x )N
2. Organism A's population grows by .
You and a friend are reading the same book over the summer. You have already read 35
pages of the book, and you read 15 pages each day. Your friend has only read 15 pages
so far but reads 20 pages each day. After how many days you will both be on the same
page? Use a system of equations to solve.
Answer:
1 or 3
Step-by-step explanation:
Please help me with this. (easy)
Answer:
8. 2/7 9. 3/4 10. 3/5
Step-by-step explanation:
simplify 4/14 by 2, simplify 15/20 by 5, and simplify 21/35 by 7, hope this helps
will mark brainliest and give 5/5
Answer:
last one i gussing
Step-by-step explanation:
Answer:
i feel like its b but im so sorry if im wrong
Step-by-step explanation:
HALLPPPPPP PLEASEEE!!
solve for a, geometry work
Answer:
a = 45 degrees
Step-by-step explanation:
Since both angles are a, they are equal to each other
Also, we know that the right angle means it measures 90 degrees
So, (180-90)/2 = a
a = 45 degrees
what is a median in a dot plot
Answer:
the median is the middle set of data.
Step-by-step explanation:
Write an equation of the trend line in slope intercept form
Answer:
the answer for this question you have id number 8
Find the total surface area of the rectangular prism.
Answer:
Width=7.1
Height=3.2
length=2.8
Formula=2(wl+hl+hw)
2(7.1 x 2.8) + (3.2 x 2.8)+ (3.2 x 7.1)
= 103.12
Hope it helps
Mark me as Brainliest!
plz help!!!!!
i’ll give a brainiest:)
Answer:
7.8
Step-by-step explanation:
pretty sure it's right
=) of the 35 seventh graders polled, 1/7 of them play a sport. How many do not play a sport?
a)5 students
C)25 students
B)14 students
D)30 students
Answer:
D
Step-by-step explanation:
the number of students who plays sport are 1/7 of 35 that means that there are 35/7 students play sport so there is only 5 of 35 students play sport
so number of students thatn dont play sport are 35 - 5 = 30
When you rotate 90 degrees counterclockwise the (y) becomes?
Answer:
Step-by-step explanation:
Rotations About The Origin
When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.
solve for x
solve for x
Answer:
x = 18
Step-by-step explanation:
Total interior angle of pentagon: 540 degrees
(3x + 23) + (9x - 6) + 95 + 90 + (7x - 4) = 540
19x + 23 - 6 + 95 + 90 - 4 = 540
19x + 17 + 95 + 90 - 4 = 540
19x + 13 + 185 = 540
19x + 198 = 540
19x = 342
x = 18
Answer:
its 18
Step-by-step explanation:
How do you find the base in the Pythagorean theorem, c=18, a=9, what is b?
Answer:
b = 15.59
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + b^2 = 18^2
81 + b^2 = 324
-81 -81
b^2 = 243
b = 15.59
Pythagorean Theorem -
[tex]a^{2} + b^{2} = c^{2} [/tex]
1 - Input the values!
[tex] 9^{2} + x^{2} = 18^{2} [/tex]
2. Find the exponents!
[tex]81 + x^{2} = 324[/tex]
3. Multi step Equations!
[tex]81 - 81 = 0 \\ 324 - 81 = 243[/tex]
4. Use square roots to find x!
[tex]x = \sqrt{243}[/tex]
Answer: X=The Square Root Of 243
An empty box is shaped like a rectangular prism. The box has a base area of 9/10 square foot and a height of 1/3 foot. How much packing
material is required to fill the box?
ОА.
3/10 ft
OB.
*1/10 ft
Ос. .
1/3ft
OD. 2/3ft
What is the range of the function y= 5-2x when the domain is {0,1,2,3}
Answer:
The range for the function y=5-2x is all real numbers, but the numbers corresponding the the domain values of 0, 1, 2, and 3, are 5, 3, 1, -1.
Step-by-step explanation:
What is the explicit rule for the sequence:
11, 22, 44, 88...
Answer:
Geometric Progression is the explicit rule for the given sequence: 11, 22, 44, 88...
First term (a) = 11
Common ratio (r) = 22/11 = 44/22 = 88/44 = 2
Formula used in Geometric Progression is :---
[tex]\boxed{a_n = a {r}^{(n - 1)}}✓\\ [/tex]
where, 'n' is the required term
Hello, help would be appreciated!
Answer: y= up 6. X= right 6.
Step-by-step explanation: it would be appreciated if you could give me brainliest. (i need one more to become an expert!)
Six whole numbers have a median of 10, a mode of 11, a range of 4. Workout the set of six numbers. Write the numbers in order
Answer:
median=10, 6 numbers, so median is between 3rd and 4th
.. 9 11 . .
mode=11
.. 9 11 11 .
range=4
7 8 9 11 11 11
59/42 as a mixed number
Answer:
Step-by-step explanation:
1 17/42
Hope that helps!
Answer:
1 17/42
Step-by-step explanation:
if its right can I have brainliest
10 cm 8 cm 14 cm 7 cm 6 cm 15 cm What is the total area of the figure ?
A 373cm2
B 338cm2
C 303cm2
D 268cm2
Answer:
please include an image for the question
Which of the following is a skill?
A. Hearing
B. Reading
O
C. Talking
O D. Sitting
Answer:
B. Reading
The rest of the options are not skills
Answer:
B
Step-by-step explanation:
B: Reading is a skill
Are born with the ability to hear talk and sit, but all of us can't read when your born. you have to learn the skill. And if you are born with the ability to read, uhhh your weird, lol
Hope that helps :)
GUYS PLEASE HELPP PLSPLSOLSOAKGDJXG
Answer:
Let S = starting point
Let ST = length of tunnel
SR = 1414 m
RT = 2236 m
Set up:
ST^2 + SR^2 = RT^2
ST^2 + (1414)^2 = (2236)
Solve for RT to find your answer.
Step-by-step explanation:
can anyone help? im a lil lost
Answer:
So they just want you to solve the equation if x= -4
d(-4) = -(-4) + -4
y = 4 - 4
The solution would be 0.