Answer:
(19+7)÷2-5
Step-by-step explanation:
you need to add 19 and 7 together first to get 8 then go in order of operations
A pair of listening posts is 4,000 ft apart. They both pick up a sound, but one listening post records the sound 1.5 seconds after the other listening post. Assume sound travels at 1,100 ft/s. Which equation can be used to determine possible locations of the origin of the sound?
Answer:
its B
x^2/680,625 - y^2/3,319,375 = 1
The equation that be used to determine possible locations of the origin of the sound [tex]\dfrac{ x^2}{680,625} - \dfrac{ y^2}{3,319,375 }= 1[/tex]
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
A pair of listening posts is 4,000 ft apart.
They both pick up a sound, but one listening post records the sound 1.5 seconds after the other listening post.
Assume sound travels at 1,100 ft/s.
The equation would become
[tex]\dfrac{ x^2}{680,625} - \dfrac{ y^2}{3,319,375 }= 1[/tex]
Learn more about equations;
https://brainly.com/question/27056029
#SPJ2
pls help need it ASAP
Answer:
D
Step-by-step explanation:
2x>7
x>7/2
x>3.5
Answer:
D
Step-by-step explanation:
Have a day as amazing as you are :D
Aaron buys a game for $25.00 and has to pay $2.00 for tax. What is sales tax rate?
Answer:
$12.50
Step-by-step explanation:
divide
a car leaves a stoplight and accelerates 15 seconds, and its speed reaches 60 km/hr. how fast did this car accelerate during this time?
Select all expressions that describe the expression 2 + 5Y
A) 1 plus 5 plus Y
B) 2 plus 5 times a number Y
C) 2 plus the product of 5 and a number Y
D) The sum of all the numbers times Y
E) the sum of 2 and 5Y
F) 2 plus Y plus Y plus Y plus Y plus Y plus Y
Answer i think b, and f.
Step-by-step explanation:
Let me know if i am wrong.
Ms. Lynette earns $19.50 an hour when she works overtime. She worked overtime twice this week. One day she worked 3 hours of overtime. Her total overtime pay for the week is $146.25.
Write an equation to find the number of overtime hours she worked on the second day.
Answer:
4 1/2 hours
Step-by-step explanation:
Equation(s):
--
(146.25 - (19.50 x 3)) ÷ 19.50 =
4.5 or 4 1/2 hours
--
#LFM #Brainly
In triangle PQR, the angles are in the ratio 2 : 3 : 4. Find all the angles (urgent)
Answer:
40°, 60° and 80°
Step-by-step explanation:
sum the parts of the ratio, 2 + 3 + 4 = 9 parts
Divide 180° ( sum of angles in a triangle) by 9 to find the value of one part of the ratio.
180° ÷ 9 = 20° ← value of 1 part of the ratio , then
2 parts = 2 × 20° = 40°
3 parts = 3 × 20° = 60°
4 parts = 4 × 20° = 80°
The angles in the triangle are 40°, 60°, 80°
• 1.Find the scale factor of a blueprint if the scale is 3 inches = 6 feet.
A. 1
B. 24
C. 3
D. 72
Answer:
B
Step-by-step explanation:
Answer: B. 24 (as a fraction: 1/24)
how to write "The product of a number and -2 increased by 10"?
Libby earns $10 each hour for babysitting. Let m = the money she earns, and t = the time in hours she is babysitting. What equation represents this proportional relationship?
Answer:
$10t=m
Step-by-step explanation:
If for each hour is $10.
She would earn the number of hours times $10.
Example: She did babysitting for 4 hours this weekend. The equation is $10(4)=m or $10 x 4 = m. m=40
I need help ASAP!! can u do this? :)
which expression is equivalent to 3x -5?
Answer:
3x - 5 = 3x + (-5)
Step-by-step explanation:
Find the sale price of the item. Round to two decimal places if necessary.
Original price: $85.00
Markdown: 34%
The sale price is
i’ll give brainliest, just help me please : )
The table below represents a linear function. Identify the rate of change of the function.
Answer:
the function is f(x) = 7/4x - 2
therefore the average rate of change is 7/4
Lisa works as a waitress. The data set below shows Lisa's daily gratuity income, in dollars, over 15 days of work. 90, 80, 85, 115, 55, 60, 97, 73, 70, 110, 112, 58, 92, 78, 100 Using a box plot, determine which of the following are true regarding the data set above. The data is skewed left. The data is skewed right. The data is symmetric. The IQR is 30. A. III only B. II and IV C. I and IV D. III and IV
Answer:
The data is symmetric.
The IQR is 30.
Step-by-step explanation:
Answer:
The data is symmetric.
The IQR is 30.
Plzzzz brainlest I swear
Answer: 8
Step-by-step explanation: on the left chain, there are 5 4’s, so 4 times 5 is 20 Because you know that, subtract it from 60 to only have the W’s values. So 60-20 is 40 and because there is 5 w’s do 40/5 is 8. Therefore, the value of the w’s is 8 and the value of the 4’s is 20
Answer:
1024.
Step-by-step explanation:
4x4x4x4x4= 1024
I hope this is correct and I hope this helps. My apologies if it´s wrong.
An equilateral triangle has a perimeter of 24 centimeters. If the triangle is dilated by a factor of 0.5, what is the length of each side of the new triangle?
Answer:
4
Step-by-step explanation:
To find the side length of the original triangle:
24/3=8 (because it is an equilateral triangle).
Because the triangle is dilated by a factor of 0.5 and the triangle is equilateral, the side lengths of the new triangle is
8*0.5=4
The probability that it rains is about 20%.
The probability that the bus is late is about 8%.
The probability that it rains and the bus is late is about 3%.
The probability that the train is late is about 5%.
The probability that it rains and the train is late is about 1%.
what can you conclude about the rain and the students commute on the bus and train?
PLEASE HELP I NEED AN ESSAY AS SOON AS POSSIBLE OR ASAP!!!!!! WRITE A 10 - 20 SENTENCE ESSAY AND I WILL GIVE YOU 30 POINTS PLEASE HELP
Answer:
what does it need to be about?
Step-by-step explanation:
Identify the best measure of Sin C
Answer:
[tex]\sin C=\frac{28}{35}[/tex]
Step-by-step explanation:
In a right triangle, [tex]\sin\theta =\frac{\text{opp}}{\text{hyp}}[/tex]. In this case, the side opposite to angle [tex]C[/tex] is 28 and the hypotenuse is 35. Therefore, the exact value of [tex]\sin C[/tex] is [tex]\boxed{\frac{28}{35}}[/tex].
High School's track team won 8 meets and lost 2. What is the ratio of wins to the total number of track meets?
PLS I NEED THIS DONE QUICK.
(-2,19)(10,-11) find the slope
Answer:
-5/2
Step-by-step explanation:
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\[/tex]
[tex]= \frac{-11-19}{10-[-2]}\\\\=\frac{-30}{10+2}\\\\=\frac{-30}{12}\\\\=\frac{-5}{2}[/tex]
The altitude to the hypotenuse of a right triangle divides the hypotenuse into 15 inches and 30 inch segments. Explain or show how to find the exact length of the altitude including the correct value. Then explain or show how to find the length of each leg including the correct values.
9514 1404 393
Answer:
CX = 15√2 inches
BC = 15√3 inches
AC = 15√6 inches
Step-by-step explanation:
In this geometry, all of the triangles are similar:
ΔABC ~ ΔACX ~ ΔCBX
Corresponding segments are proportional in similar triangles, so we have ...
AX/CX = CX/BX = (long leg)/(short leg)
Filling in the numbers, we get
30/CX = CX/15
CX² = 15×30
CX = 15√2 . . . . . exact length of the altitude (inches)
__
Similarly, we can form proportions with the legs:
AB/BC = CB/BX
BC² = (BX)(AB) = (45)(15)
BC = 15√3 . . . inches
and
AC/AB = AX/AC
AC² = (AX)(AB) = (30)(45)
AC = 15√6 . . . inches
_____
Additional comment
You may notice that each of the segments we're interested in is the root of a product involving segments of the hypotenuse. This "root of a product" is called the geometric mean. Here, the three geometric mean relations are ...
altitude = geometric mean of hypotenuse segments
short side = geometric mean of short segment and whole hypotenuse
long side = geometric mean of long segment and whole hypotenuse
__
Strictly speaking the geometric mean is the n-th root of the product of n items. Here, there are only 2 items, so it is the square root of their product.
4. Which of the following equations can give an estimated product of 224?
A. 2.54 x 6.85
C. 14.04 x 15.61
B.10.6 x 5.8
D. 17.6 x 16.9
Find the total surface area of this cuboid 4cm 2cm 5cm
Answer:
76cm²
Step-by-step explanation:
SA=2lw+2lh+2hw
length=4cm
width=2cm
height=5cm
= 2(4×2+4×5+5×2)
=8+20+10
=2×38
=76cm²
PLEASE HELP IMMIDEATIALY BFHBGDWAHDW
Answer:
zeros and AoS
Step-by-step explanation:
zeros, x = (1 , -7)
AoS:x =-1
Anyone that answers this right will get 100+ points, any wrong answers or spamming will be reported.
Answer:
na
Step-by-step explanation:
ez I did this in 3rd grade
A side of the triangle below has been extended to form an exterior angle of 116. Find the value of x
Answer:
[tex]x=64 \textdegree[/tex]
Step-by-step explanation:
From the question we are told that
Angle of extension [tex]y=116 \textdegree[/tex]
Generally the angle formed at x is mathematically given as
[tex]x=180-116[/tex]
[tex]x=64 \textdegree[/tex]
Answer:
26°
Step-by-step explanation:
A side of the triangle below has been extended to form an exterior angle of 116°. Find the value of xx.
The answer is 26° i tried 64 and it was incorrect.
What is the postulate?
Step-by-step explanation:
Blank #1 STQ
Blank #2 SSS (Side-Side-Side)