Answer:
i would say about 6 hours
Step-by-step explanation:
A dolphin is swimming 20 feet below the surface. It descends another 10 feet before rising 2
feet. How far below the surface is it now? {Show the number sentence.
Answer:
28 feet
Step-by-step explanation:
20 + 10 = 30 - 2 = 28 feet
The dolphin is 20 feet below the surface, goes down another 10 feet, so 30 feet below the surface, and raises two feet, so 28 feet below the surface.
I need help on this :(
Answer:
-16
Step-by-step explanation:
4×(-2)²×(-1)³
=4×4×-1
=-16
In the movie hidden figures what does the cop do to or For the three ladies
Answer:
the cop offers them a police escort all the way to Langley
Step-by-step explanation:
having a car full of african americans in a car chase a police all the way too Langley.
what is the square root of 16 to the nearest tenth
Answer:
4
Step-by-step explanation:
4 x 4 = 16
hope dis helps :)
Answer:
the square root of 16 is 4 the nearest tenth is 4
Please help!!!!!!!!!!!!!!
On the first day of a social media ad campaign, a website had 15 unique visitors. Over the following several days, the website received three times the number of unique visitors as the previous day. The number of visitors, v, can be modeled by v=15⋅3^(d−1), where d is the number of days in the campaign.
On which day of the ad campaign did the website have 10,000 visitors?
4
7
9
6
Answer:
the answer is 7
Step-by-step explanation:
can anyone help with the math i have posted please?
if ur good at graphs come here.
Answer:
Believe its D
Step-by-step explanation:
Answer:
(-6,-12) let me know if wrong
Step-by-step explanation:
Mark me brainliest plz
Two situations are given in the table below. Drag the words to show which situation is modeled by an expression and which is modeled by an equation. CLEAR CHECK Equation Expression Situation Expression or Equation:
6 minutes longer than Laura.
Ken sang 6 minutes longer than Laura.
The phrase “6 minutes longer than Laura” is an expression,
What is an expression?Expression in mathematics is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
We are given that;
6 minutes longer than Laura and Ken sang 6 minutes longer than Laura.
Now,
Because it does not have an equal sign. It can be written as L + 6, where L is the number of minutes that Laura sang.
The sentence “Ken sang 6 minutes longer than Laura” is a situation that can be modeled by an equation, because it involves a relationship between two quantities. It can be written as K = L + 6, where K is the number of minutes that Ken sang and L is the number of minutes that Laura sang.
Therefore, by the given statement answer will be expression.
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What is x?
8x+6=5x+30
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{8x+6=5x+30}[/tex]
[tex]\large\textsf{SUBTRACT 5x to BOTH SIDES}[/tex]
[tex]\mathsf{8x+6-5x=5x+30-5x}[/tex]
[tex]\large\text{Simplify above to get your new equation}\uparrow[/tex]
[tex]\rightarrow\mathsf{3x +6=30}[/tex]
[tex]\large\textsf{SUBTRACT 6 to BOTH SIDES}[/tex]
[tex]\mathsf{3x +6-6=30-6}[/tex]
[tex]\large\text{CANCEL out: \textsf{6 - 6} because that gives you 0}[/tex]
[tex]\large\text{KEEP: \textsf{30 - 6} because it helps you solve for your x value.}[/tex]
[tex]\mathsf{30-6=\bf 24}[/tex]
[tex]\large\text{New EQUATION: \textsf{3x = 24}}[/tex]
[tex]\mathsf{3x = 24}[/tex]
[tex]\large\textsf{DIVIDE 3 to BOTH SIDES}[/tex]
[tex]\mathsf{\dfrac{3x}{3}=\dfrac{24}{3}}[/tex]
[tex]\large\text{CANCEL out: }\mathsf{\dfrac{3}{3}}\large\text{ because it gives you 1}[/tex]
[tex]\large\text{KEEP: }\mathsf{\dfrac{24}{3}}\large\text{ because it helps solve for x}[/tex]
[tex]\large\text{New EQUATION: }\mathsf{\dfrac{24}{3}=x}[/tex]
[tex]\mathsf{\dfrac{24}{3}=24\div3=\bf 8}[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf x = 8}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
PLEAEEE PLEAEE AHHHHHHH
Answer:
116cm^2
Step-by-step explanation:
mark me brainliest!
Eight friends want to play enough games of chess to be sure everyone plays everyone else. How many games will they have to play?
The number of games, the friends have to play is an illustration of combination.
They have to play 28 games to ensure that they all play
Given
[tex]n = 8[/tex] --- number of friends
[tex]r = 2[/tex] --- only two friends can play at a time
For everyone else to play, we will make use of the following combination formula;
[tex]^nC_r = \frac{n!}{(n - r)!r!}[/tex]
So, we have:
[tex]^8C_2 = \frac{8!}{(8 - 2)!2!}[/tex]
[tex]^8C_2 = \frac{8!}{6!2!}[/tex]
Expand
[tex]^8C_2 = \frac{8 \times 7 \times 6!}{6! \times 2 \times 1}[/tex]
[tex]^8C_2 = \frac{8 \times 7}{2 \times 1}[/tex]
[tex]^8C_2 = 4 \times 7[/tex]
[tex]^8C_2 = 28[/tex]
Hence, the 8 friends have to play 28 games to ensure that everyone else plays
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HELP PLEASE 50 POINTS WILL GIVE BRAINLIEST Drag and drop the expressions into the boxes to correctly complete the proof of the polynomial identity.
(x^2+y^2)^2+2x^2y2−y^4=x^2(x2+4y^2)
Answer:
the 6th expression, the 4th expression, the 1st expression
Step-by-step explanation:
Question 10 of 10
If a sample mean is 37, which of the following is most likely the range of
possible values that best describes an estimate for the population mean?
O A. (28,36)
B. (32, 42)
C. (34, 42)
D. (30,38)
If a sample mean is 37, (32, 42) is most likely the range of possible values that best describes an estimate for the population mean. The correct option is C.
What is mean?In math, a mean is the average of a data set, which is calculated by adding all of the numbers together and then dividing the sum of the numbers by the number of numbers.
Assuming a moderate sample size (e.g., n = 30) and a typical population standard deviation (e.g., σ = 10), the SEM can be estimated to be approximately 2.
Using this estimate, the range of possible values for the population mean can be calculated as:
37 - x = 33
37 + 2 * 2 = 41
Therefore, the most likely range of possible values for the population mean is option C.
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What are the solutions of this quadratic equation?
25 points
Calculate the area.
5 cm
14cm
9 cm
Find the area!!!!!!! thanks
Help meh ples and thank you. :p
Answer:
38.465
Step-by-step explanation:
Area of circle =
[tex]\pi \: r {}^{2} [/tex]
diameter= 7
radius is half of the diameter
Radius =7÷2 = 3.5
Area = 3.14 × 3.5 × 3.5
= 38.465 inch squared
5 1/3 - 2 4/9= What is the answer?
Answer:
5 1/3 - 2 4/9 = 26/9
26/9 simplified equals 2 8/9
Step-by-step explanation:
I hope that my answer has helped you to understand you questions asked. If you have any further questions, please put them below.
Have a great rest of your day/night!
Answer:
[tex]2\frac{8}{9}[/tex]
Step-by-step explanation:
The circumference of a circle is 11pi m (meters)
What is the area, in square meters?
Express your answer in terms of pi.
Answer:
10 square meters
Step-by-step explanation:
2. What is the truth value of the following statement?
If a number is divisible by 3, then it is odd.
Answer:
False
Step-by-step explanation:
30 is divisible by 3 yet it is not an odd number, which means that this statement is false.
Mhanifa or anyone please answer!! Find x
Answer:
[tex]x=2.05[/tex]
Step-by-step explanation:
To solve this problem, use the trigonometric ratios. The trigonometric ratios for a right triangle (a triangle with a right angle are the following).
[tex]sin(\theta)=\frac{opposite}{hypotenuse}\\\\cos(\theta)=\frac{adjacent}{hypotenuse}\\\\tan(\theta)=\frac{opposite}{adjacent}[/tex]
In this case, one is given the hypotenuse (the side opposite the right angle) and one is asked to find the side adjacent to the given angle. Therefore, it would make the most sense to use the trigonometric ratio of cosine ([tex]cos[/tex]).
[tex]cos(\theta)=\frac{adjacent}{hypotenuse}[/tex]
Substitute,
[tex]cos(47)=\frac{x}{3}[/tex]
Inverse operations,
[tex]3(cos(47))=x[/tex]
Simplify,
[tex]x=2.05[/tex]
Answer:
[tex]x=2.0459[/tex]
Step-by-step explanation:
[tex]Cos 47=\frac{x}{3}[/tex][tex]x=3*Cos47[/tex][tex]2.0459[/tex]»»————- ♔ ————-««
hope it helps...
have a great day!!
helppppp i need to round the answer to one decimal place
Answer:
4.5 , and my answer needs to be 20 characters long, but I'm pretty sure it's 4.5
The wholesale price for a watch is $25. The markup percent is 50%. What is the retail price?
Answer:
$50
hope this helps!!!!!!!!!
A fireman leaned a 28 foot ladder against a building. If he placed the ladder 14 feet from the base of the building, what angle is formed between the ladder and the ground
Answer:
The ladder makes an angle of 60 degree from the ground.
Step-by-step explanation:
Length of the ladder, L = 28 feet
distance of ladder, d = 14 feet
Let the angle formed with the ground is A.
According to the trigonometry
[tex]\cos A =\frac{d}{L}[/tex]
[tex]\cos A =\frac{14}{28}[/tex]
cos A = 0.5
A = 60 degree
Select the correct answer.
Consider the following equation.
[tex]5^{-x}[/tex]+7=2x+4
Approximate the solution to the equation above using three iterations of successive approximation. Use the graph below as a starting point.
a. x=[tex]\frac{7}{4}[/tex]
b. x=[tex]\frac{27}{16}[/tex]
c. x=[tex]\frac{13}{8}[/tex]
d. x=[tex]\frac{25}{16}[/tex]
Answer:
C
Step-by-step explanation:
I think
The solution to the equation above using three iterations of successive approximation is x = 25/16
What is an equation?An equation is an expression that is represented by the equality or equal to sign i.e "="
The equation is given as:
[tex]5^{-x} + 7 =2x + 4[/tex]
Equate to 0
[tex]5^{-x} + 7 -2x - 4 = 0[/tex]
Express as a function
[tex]f(x) = 5^{-x} + 7 -2x - 4[/tex]
The equation has a solution when f(x) = 0.
From the graph, we have:
x = 1.5
So, we have:
[tex]f(1.5) = 5^{-1.5} + 7 -2*1.5 - 4[/tex]
Evaluate
f(1.5) = 0.089
Set x to 1.52 to determine a closer value of f(x) to 0.
[tex]f(1.52) = 5^{-1.52} + 7 -2*1.52 - 4[/tex]
Evaluate
f(1.52) = 0.047
Set x to 1.54 to determine a closer value of f(x) to 0.
[tex]f(1.54) = 5^{-1.54} + 7 -2*1.54 - 4[/tex]
Evaluate
f(1.54) = 0.004
Notice that 0.004 is closer to 0 than 0.047 and 0.089
From the list of options, the closest value to 1.54 is 25/16
Hence, the solution to the equation above using three iterations of successive approximation is x = 25/16
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Please help immediately and please show working
Answer:
x = 9
y = [tex]9\sqrt{2}[/tex]
Step-by-step explanation:
Since there is a 45° angle and a 90° angle, this is a isosceles triangle, therefore x = 9 and you can find y by pithagoras:
9² + 9² = y²
81 + 81 = y²
y = [tex]\sqrt{162}[/tex]
[tex]y=\sqrt{2 * 81}[/tex]
[tex]y=\sqrt{2 * 9^2}[/tex]
[tex]y=9\sqrt{2}[/tex]
Simplify.√75
A.3√5 B.15√5 C.25√3 D. 5√3
Angle ABC measures 90 degrees. It has been split into two angles angle ABD and angle DBC. The measure of the two angles is in a ratio of 2:1. What are the measures for each angle.
Answer:
the angle measures are 60 and 30
What is the perimeter,in centimeters of triangle QRS?
Answer: 60
Step-by-step explanation:
You have to use Pythagorean Theorem because the other side is not listed of the triangle
Pythagorean Theorem: a² + b² = c²
a² + 20² = 25²
a² + 400 = 625
625-400 = a²
a² = 225
Find the square root of 225 to find the missing length
[tex]\sqrt{225}[/tex] = 15 (this is the missing length for QS
To find the perimeter, add all the sides...
15 + 20 +25 = 60