What is the product of -4 and 8.1?
A. -32.4
B. -12.1
C. 12.1
D. 32.4
Answer:
-32.4
Step-by-step explanation:
What you do is the -4 x the 8. after that you should get 32. Then you do 4 x the 1. Hence, you should get 4. Because of that you put the 32 and 4 together. your final answer is -32.4
Answer:
The answer is A. -32.4
Step-by-step explanation:
What you do is the -4 x the 8. after that you should get 32. Then you do 4 x the 1. Hence, you should get 4. Because of that you put the 32 and 4 together. your final answer is -32.4
Hope this helps :)
the gradient of the line y = x+3y=9
Answer:
change the expression to y
Step-by-step explanation:
[tex]x + 3y = 9[/tex]
[tex]3y = - x + 9[/tex]
[tex]y = \frac{ - 1}{3} x + \frac{9}{3} [/tex]
the gradient is the coefficient of x,
[tex] - \frac{1}{3} [/tex]
PLEASE HELP I WILL MARK YOU BRAINLIEST The function h(t)=- 16t^2 +92t describes the height of a model rocket. Use technology to graph the
function and answer the questions below. Round your answers to the nearest hundredths (3 points)
a. At what times is the model rocket at a height of 100 feet?
b. For how long is the rocket in the air?
Answer:
Step-by-step explanation:
100 = -16t^2 + 92t
16t^2-92t + 100 = 0
4t^2 - 23t + 25 = 0
t = [23 ±√(23^2-4(4)(25))]/[2(8)] ≈ 1.5, 4.3
The rocket has altitude of 100 ft at 1.5 sec and 4.3 sec.
:::::
0 = 16t^2-92t = t(16t-92)
t = 0, 5.75
Rocket is in the air for 5.75 seconds
Work out the size of obtuse angle DOF, giving a reason for your answer.
Answer:
104
This is because angle at the center is twice the angle at the circumference
Step-by-step explanation:
104 is the size of obtuse angle DOF because the angle at the center is twice the angle at the circumference.
What is an obtuse angle?An obtuse angle is any angle greater than 90 °: Straight angle is a measurement angle equal to 180 °: Zero angles is a measurement angle equal to 0 °: Complementary angle is the angle at which the sum of the measurements is 90 °: Complementary angles are the following angles: The total dimensions are 180 °.
Now we know that angles below 180 degrees and above 90 degrees are obtuse. Examples of bluntness include 110 °, 135 °, 150 °, 179 °, 91 °. Therefore, all angles in the range of 90 ° to 180 ° are obtuse.
Learn more about the circumference. here: https://brainly.com/question/14283575
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Triangular prism please help
Answer:
C
Step-by-step explanation:
Solve the equation: 12(x + 8) = 11x - 5 What is the solution?
Answer:
We conclude that the solution is:
[tex]x = -101[/tex]Step-by-step explanation:
Given the equation
[tex]12\left(x\:+\:8\right)\:=\:11x\:-\:5[/tex]
Expand 12(x + 8): 12x + 96
[tex]12x+96=11x-5[/tex]
Subtract 96 from both sides
[tex]12x+96-96=11x-5-96[/tex]
Simplify
[tex]12x=11x-101[/tex]
Subtract 11x from both sides
[tex]12x-11x=11x-101-11x[/tex]
Simplify
[tex]x=-101[/tex]
Therefore, we conclude that the solution is:
[tex]x = -101[/tex]Two vertices of a right triangle have coordinates (3, 7) and (3, 10). The segment that connects these points is a leg of the triangle
Which set of coordinates for the third vertex would create a right triangle?
O (4,4)
O (7,8)
O (8,7)
O (4,8)
Answer:
8,7
Step-by-step explanation:
i hope this helps!
what is the total cost of a $52 lunch with a 20% tip?
Answer: 62.4$
Step-by-step explanation: 20% of 52 is 10.4
What is the volume of the triangular prism in cubic centimeters?
A- 1,360 cm (3)
B- 408 cm (3)
C- 1, 632 cm (3)
D- 816 cm (3)
Answer:
b because it just is
Step-by-step explanation:
I’ll love u forever if u help with this ASAP plzzzzzzz just zoom in if u can’t see it I don’t get it
A stadium currently has a seating capacity of 15400 seats. i) Calculate the number of people in the stadium when 75% of the seats are occupied
Answer:
11550
Step-by-step explanation:
Find the Surface Area of the following figure:
16 ft
10 ft
7 ft
Answer:
1120
Step-by-step explanation:
how is the orientation of and image affected by translation
Answer:
is this helping?
Step-by-step explanation:
it helps show the words better
sorry if wrong or late qwq
your amazing
A room has a maximum capacity of 396 people. How many people are allowed in the room at anytime?
Pls help me thank you <3
Solving by GCF
1)7x^2+2x=0
Solution(s) are is:
2)5b^2-10b=0
Solution(s) are is:
3)3d^2-d=0
Solution(s) are is:
4)17x^2+51x=0
Solution(s) are is:
Answer:
1. 9x³
2.5b³
3.2d
4. 68x³
9514 1404 393
Answer:
0, -2/70, 20, 1/30, -3Step-by-step explanation:
Factoring out the greatest common factor in each case, we can simplify the process of finding the non-zero solution. The solutions are the values of the variable that make the factors be zero.
1) 7x^2 +2x = 0 = (x)(7x +2) ⇒ x = 0; x = -2/7
__
2) 5b^2 -10b = 0 = (5b)(b -2) ⇒ b = 0; b = 2
__
3) 3d^2 -d = 0 = d(3d -1) ⇒ d = 0; d = 1/3
__
4) 17x^2 +51x = 0 = 17x(x +3) ⇒ x = 0; x = -3
In triangle ABC, ∠Ais a right angle and m∠B=45°. Fnd BC. Give EXACT answer. (Hint: Exact means the radical form.)
I need help with a few trig questions
Can somebody plz help answer both these word problems and (write amp equation for each problem and solve) thx :3
WILL MARK BRAINLIEST WHOEVER ANSWERS THESE FIRST!!!:DDD
Answer:
14. She deposited $15.50 into her bank.
15. The width would be 900.
Step-by-step explanation:
14. 245.60 + x = 261.10
x = 15.50
245.60 + 15.50 = 261.10.
She deposited $15.50 into her bank and resulted in her new bank balance appearing as $261.10.
15. Width is 900 cm
Length is 12 cm.
A = L X W = 108
A = L * 3/4L
108 = 3/4L2
Divide both sides by 3/4: multiply both sides by the inverse of 3/4 or 4/3.
(4/3)*108 = L2
144 = L2
√144 = L
12 = L
W = 3/4*12
W = 9
Before we finish:
A = 108 = 9 x 12 = 108
W/L = 3/4 = 9/12 = 3/4
The width of the rectangle would be 3/4.
can anyone help me with this
Answer:
a)$2800 , $0
b)$1600 , $0
c)$2800 , $0
d)$1650 , $0
e)$4400 , $0
f)$1020 , $0
g)$1405 , $0
h)$5400 , $0
Find the value of x. Round to
the nearest tenth.
17°
47
IX
X =
= [?]
Answer:
For this question, we need to use a little bit of trigonometry.
We have: sine 17 = x/47
Simplifying: 0.29 = x/47
Multiply both sides by 47 to get: x is about 13.7
Let me know if this helps!
Answer:
13.7
Step-by-step explanation:
a metal pipe is 77 cm long the inner diameter of the cross section is 4 cm and the outer diameter is 4.8 cm find the (i) inner curved surface area (ii) outer curved surface area (iii) total surface area
Answer with full step by step explaination
Answer:
Step-by-step explanation:
outer area=
first need to find the circumference of outer diameter
= π×4.8
= 15.079644.... cm
to find the outer curved area you would then do
= 77×15.079644
(ii) =1161.13264 cm²
inner curve area
circumference= π×4
=12.5663706.... cm
77×12.5663706
(i) =967.610537 cm²
total surface area=
as the outer and inner curved areas are already found only the top and bottom surfaces need to be
= area of larger circle
=π×4.8²
=72.382294.... cm²
smaller circle
=π×4²
=50.2654824.... cm²
72.382...-50.265
=22.1168116 x 2
=44.2336232 cm²
total surface area
(iii)= 2172.9768 cm²
(round this to however many decimals you need)
I hope this is understandable and useful!
also how many marks is this for?
If you like vampire diaries plz tell me DAMON OR STEFAN......
Answer:
i like both of them
Step-by-step explanation:
y=4x+3
2x-3y=21
SHOW YOUR WORK
Step-by-step explanation:
y = 4x+3
2x-3y = 21
2x -3(4x+3) = 21
2x -12x -9 = 21
-10x = 21 + 9
-10x = 30
x = -3
if the ratio of two numbers is 2;3 and their G.C.F is 8 what is their L.C.M
Expert Answer:
Since the numbers are in the ratio 3:4 then let the numbers be 3x and 4x.
Thus the H.C.F. of the two numbers = x.
But the H.C.F is given as 4.
So, x = 4.
So, the numbers are,I
3x = 3 x 4 =12
And
4x = 4 x 4 = 16
We know,
H.C.F x L.C.M = Product of the two numbers
4 x L.C.M = 12 x 16
L.C.M = 48
Thus, the L.C.M of 12 and 16 , 48
!!!!!!PLS HELP!!!!!!
Answer:
55%
Step-by-step explanation:
1/4 - Micah will only have a 25% chance of selecting a blue pencil.
1/5 - Micah will only have a 20% chance of selecting a red pencil.
So, to conclude this, Micah only has a 55% chance of selecting a yellow pencil.
A fence is to be enclosed around a square park of side 15m. Atleast how many metres of fencing are needed?
Answer: 60 m
Step-by-step explanation:
The park is said to be square which means that all of its sides are equal.
If the fence is supposed to be put around the park, it is an indirect question asking for the perimeter of the square.
Perimeter of a square:
= 4 * length
= 4 * 15
= 60 m
what is opportunity sampling
Answer:
Opportunity sampling is also known as convenience and it can be defined as a sampling technique which typically involves the process of selecting participants from a population of interest (target group) to take part in a research study.
Step-by-step explanation:
In Statistics, sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.
There are various types of sampling used by researchers and these are;
1. Random sampling.
2. Systematic sampling.
3. Stratified sampling.
4. Cluster sampling.
5. Opportunity or convenience sampling.
Opportunity sampling is also known as convenience and it can be defined as a sampling technique which typically involves the process of selecting participants from a population of interest (target group) to take part in a research study.
This ultimately implies that, an opportunity sampling is a non-probability sampling in which a researcher select participants based on their availability for the study.
For example, John a psychologist standing on the street requesting that passersby join in his research study.
slope and y-intercept of the graph of 25x -20y =100
Step-by-step explanation:
First, we need to put this standard form into slope-intercept form
To do this you need to move the "y" to all by itself
-25x+25x-20y=100-25x
-20y=100-25x
y=5/4x-5
Answer:
y=5/4x-5
The slope is-5/4 and the -intercept is (0,5)
How to find the slop?
Locating the y-intercept on a graph requires knowing the value of y at x=0. This is where the graph intersects the y-axis.
25x−20y=100
20y = 100 + 25x
20y=100+25x
y = [tex]5 + \frac{5}{4}[/tex]
She concluded that the slope is [tex]\frac{5}{4}[/tex]
and the y-intercept is (0,5).
y = mx + b where m is the slope and b is the y-intercept. So, the slope is 5/4 and the y-intercept is -5.
The slope is-5/4 and the -intercept is (0,5)
Finding the value of y at x=0 will allow you to locate the y-intercept on a graph. The graph's intersection with the y-axis occurs here.To learn more about slop refer to:
https://brainly.com/question/3493733
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A six-sided die is rolled. What is the probability of landing on a number less than 3? Put our answer in simplest form.
Answer:
1/3
Step-by-step explanation:
2/6
1/3
Answer:
Probability of any one face to turn up is 1/6,
The probability of any above 3 is 3/6,
The probability of even number is also 3/6
So the probability of either above three or even outcome is 1/6(3/6 + 3/6)=1/6, since both events are independent of the any face event and both events are mutually exclusive.
NB:If the two events are not mutually exclusive, then
P(A) is the total event, P(B) the probability of any face above 3 and P(C) probability of any face an even number, then the Bayesian prediction formula is P(B|C) the probability of the event B occuring while C occurs is equal to (PC|P(B))/(P(B)+P(C), where P(C|B) is probability of C occuring at B.
So P(B|C)=(1/3 * 1/3)/(1/3 + 1/3) =(1/9)/(2/3) = 3/18= 1/6.
Why might u want to estimate by rounding each value to the nearest $1 instead of to the nearest $5
35 POINTS ANSWER FAST!
plz plz plz plzp lzp l help
Answer:
1.037 x 10^7
Step-by-step explanation: