Explanation:
18 + 3 × 6 ÷ 2
First let's solve the multiplication18 + 18 ÷ 2
Following the division18 + 9
Add[tex]\boxed{27}[/tex] ← Result
Att: MusicSubtituladosA room has a length of 7 m.
A scale diagram is drawn of the room.
In the diagram, the room has a length of 1 cm.
What is the scale of the diagram?
Give your answer as a ratio in the form 1 : k, where k is an integer.
Answer:
Step-by-step explanation:
A ratio is used in scale drawings of maps and buildings.
That is:
The scale of a drawing = Drawing Length : Actual Length
A scale is usually expressed in one of two ways:
-using units as in 1 cm to 1 km
-without explicitly mentioning units as in 1 : 100,000.
A scale of 1 : 100,000 means that the real distance is 100,000 times the length of 1 unit on the map or drawing.
In your case, where the room has a length of 7m and 1cm on the diagram:
1 cm to 7m = 1cm : 7m
= 1cm : 700cm
= 1 : 700
Gregoria borrowed $2,450, to be paid back at 3.5% simple interest. She spent $3221.75 in all to repay the loan. How many years did Georgia take to repay the loan?
Answer: 9 years
Step-by-step explanation:
Simple interest = PRT/100
where
P = principal = $2450
R = rate = 3.5%
T = time = unknown
Interest = $3221.75 - $2450 = $771.75
Simple interest = PRT/100
$771.5 = ($2450 × 3.5 × T)/100
$771.5 = $8575T/100
8575T = 771.5 × 100
8575T = 77150
T = 77150/8575
Time = 8.99 years = 9 years
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second.
Answer:
9.72 seconds
Step-by-step explanation:
9.72 seconds ( approx )
Step-by-step explanation:
Since, the equation that shows the height of the rocket from the ground,
Where,
x = time after launch, in seconds,
When the rocket hits the ground,
y = 0,
i.e.
By the quadratic formula,
∵ Time can not be negative,
So, the time taken to hit the ground = 9.716 seconds ≈ 9.72 seconds.
The time at which the rocket will hit the ground to the nearest hundredth of seconds is 15 seconds.
What is a quadratic equation?An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax2 + bx + c = 0, where x is the variable, and a must not be zero.
As per the given height of tower y in terms of time is seconds x
y = -16x² + 240x + 115
The height of the tower when the rocket hit the ground will be zero.
Thus, y = 0
0 = -16x² + 240x + 115
16x² - 240x - 115=0
By quadratic equation formula,
x = [-(-240) ± √((-240)²+4×16×(-115))]/ 2×16
x = [240 ± 254.8725]/32
x = 15.46 and x = -0.46 since time can be never negative thus 15.46 seconds will be correct.
15.46 to the nearest hundred is 15.
Hence "The time at which the rocket will hit the ground to the nearest hundredth of seconds is 15 seconds".
For more about the quadratic equation,
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Sione just landed a great job as an engineer where he will make $55,000 a year. The company he will work for guarantees a 3% pay increase each year so it's employees' salaries keep up with inflation. At the end of the 1st year Sione will have made $55,000 dollars. What is the recursive function that will represent this situation?
Answer:
s(x) = 55000*1.03^xStep-by-step explanation:
First year salary
$55000Annual pay rise
3% ⇔ 1.03 timesFunctional relationship
It is going to be an exponential function as every year salary will increase 1.03 times
s(x) = 55000*1.03^x, where s- salary and x- number of employment yearsI need help pls if u are good at math stuff
(-2.2) · (-2) · (–1) · (5) = ?
1. 88
2. 5 1/2
3. -88
4. -5 1/2
Answer:
My answer came out to -22.
Step-by-step explanation:
Start multiplying from left to right:
Two negatives multiplied are positive:
-2.2·(-2)=4.4
A negative and a positive multiplied equal a negative:
4.4·(-1)=-4.4
-4.4·5=-22
Help please!!! 20 points
Answer:
I have no idea sorry
Step-by-step explanation:
Which best describes how to subtract 6.45 from 81.3?
Align the numbers on the decimal point. Place a zero in the hundredths place of 81.3.
Subtract from right to left, regrouping as necessary
Align the digits of the numbers on the right-most digit.
Subtract from right to left, regrouping as necessary.
Align the digits of the numbers on the left-most digit
Subtract from right to left, regrouping as necessary
Align the numbers on the decimal point.
Subtract from left to right, regrouping as necessary
Answer:
Align the numbers on the decimal point. Place a zero in the hundredths place of 81.3. Subtract from right to left, regrouping as necessary.
Step-by-step explanation:
The Correction Observation is
Align the numbers on the decimal point. Place a zero in the hundredths place of 81.3. Subtract from right to left, regrouping as necessary.
What is Subtraction?To subtract is to take something or somethings away from a group. The group's total number of items decreases or becomes lower when we subtract from it. The components of a subtraction issue are the minuend, subtrahend, and difference.
Given:
subtract 6.45 from 81.3
For Subtraction
First, Align the numbers on the decimal point.
Then, Place a zero in the hundredths place of 81.3.
lastly , Subtract from right to left
Learn more about subtraction here:
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$495 was shared amongst 3 friends in the ratio of 3:7:10, find the sum of money shared
Answer: 165$ per friend.
Step-by-step explanation: 495/3=165.
Answer:
$165
Step-by-step explanation:
please let me know !
Step-by-step explanation:
Slope = y2 - y1
x2 - x1
So, 4 - 0
8 - 6
= 4
2
Slope = 2
y - 4 = 2(x - 8)
y - 4 = 2x - 16
y = 2x - 12
y-intercept:
y = 2(0) -12
y = -12
x-intercept:
(0) = 2x - 12
12 = 2x
12/2 = x
6 = x
Domain: {0, 2, 4, 6, 8}
Range: {-12, -8, -4, 0, 4}
Hope this helps!
Good luck!
raise the product of 36 and 9 to the power sum of 2 and 4
Answer:
Step-by-step explanation:
36 x 9 = 324
324^6
=324*324*324*324*324*324
=324^6
=1156831381426176
3x + 2y + 4 ; x= 2 and y=3 |
Answer:
if x=2 and y=3 then
3x+2y+4 ---> 3(2)+2(3)+4
3(2)+2(3)+4
6+6+4
6+10
16
Find m<LMN if m<LMT=23 degree and m<TMN=144 degree
Answer:
∠LMN = 167°
Step-by-step explanation:
∠LMT = 23°
∠TMN = 144°
∠LMN = ∠LMT + ∠TMN
∠LMN = 23° + 144°
∠LMN = 167°
can someone please give me some good sad music??????
Answer:
hello darkness
Step-by-step explanation:
Answer:
if you are into emo pop punk like me i would suggest the album "Best Buds" by mom jeans.
Step-by-step explanation:
9. Subtract: 5 - 3 1/3
A. 1 2/3
B. 2 2/3
C. 3 1/3
D. 2 1/3
Answer:
b is the right answer
Step-by-step explanation:
plz can u follow and make brainliest answer and like and thx to u
Answer:
A. 1 2/3
Step-by-step explanation:
I thought of it backwards and did 1 and 2/3 + 3 and 1/3 = 4 and 3/3
and that turns into 5
20 POINTS AND BRAINLIST
restaurant has 22 bags of potatoes weighing 363 pounds. If the weight of the bags of potatoes varies directly with the number of bags of potatoes, how much will 15 bags weigh?
a 247.5
b 330
c 115.5
d 315
You have a 18.96 cubic centimeter gourd that has a density of 2.23 g/ml, what is the mass of the gourd?
A zoo collected data on the diving times of turtles. Based on the data, the regression line is j = 0.010 + 2.515x, where x is the time of the dive, in minutes. Based on the regression equation, what is the predicted dive depth in meters at 150 seconds? Give your answer to three decimal places. meter(s)
Answer:
6.298 meters
Step-by-step explanation:
Here, we are told that x is the time of the dive in minutes.
We simply first need to convert 150 seconds to minutes before substitution into the regression formula;
Kindly recall that 60 seconds = 1 minute
So 150 seconds will be 150/60 = 2.5 minutes
We now proceed to substitute into;
j = 0.010 + 2.515(x)
i = 0.010 + 2.515(2.5)
j = 0.010 + 6.2875
j = 6.2975 which go 3 decimal places is 6.298 meters
Using the regression model given, substitution the value of x = 2.5 minutes into the equation, the dive depth obtained ls 6.2975 meters.
Given the regression model :
y = 0.010 + 2.515xx = time of the dive ; y = dive depthConverting, x to minutes :
150 seconds = (150 ÷ 60) = 2.5 minutes
The dive depth, y after 150 seconds, can be obtained by substituting the value x = 2.5 into the equation :
y = 0.010 + 2.515(2.5)
y = 0.010 + 6.2875
y = 6.2975
There, the dive depth after 150 seconds will be 6.2975 meters
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Picture attached !!!
Answer:
D.
Step-by-step explanation:
Since they are both the same angle measures, they are congruent, and also corresponding since they are located on the same side and half of the different lines.
A vertical line has points C, E, F from top to bottom. 2 lines extend from point E. One line extends to point A and another extends to point B. Angle A E C is 90 degrees.
Given that Ray E B bisects ∠CEA, which statements must be true? Select three options.
m∠CEA = 90°
m∠CEF = m∠CEA + m∠BEF
m∠CEB = 2(m∠CEA)
∠CEF is a straight angle.
∠AEF is a right angle.
Answer:
A, D, E
Step-by-step explanation:
Answer:
A. m ∠CEA = 90°
D. ∠CEF is a straight angle.
E. ∠AEF is a right angle.
Explanation: This is the correct answer on Edge 2021, just took the unit test. Hope this helps ^-^.
i dont understand the question
Answer:
2 <= to x <= 5
Step-by-step explanation:
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Tessa adopts a rescue dog. On the way home, she stops at the store to buy a case of dog
food. A case has 12 cans and costs $19.92. How much does each can cost?
Answer:
1.66
Step-by-step explanation:
19.92/12= 1.66
So $1.66 per can
Answer:
1.66
Step-by-step explanation:
Select all of the transformations that always maintain a shape's congruency.
A) A reflection
B) Adilation
C) A reflection and then a dilation
D) A rotation then a translation
E) A translation then a reflection
K = 1/5
what is the answer
Answer:
K=1/5 or in decimal form 0.2
Step-by-step explanation:
BRAINLIEST ANSWER!! please help
Help me please??????
Answer:
Option D, 40
Step-by-step explanation:
90 + 50 = 140
180 - 140 = 40
Answer:
40
Step-by-step explanation:
180-90+50=40
brainliest appreciated
what is the answer for x
Answer:
x = 8.5
Step-by-step explanation:
I got this answer by assuming the triangles were congurent, if they are not, the answer may vary.
first, make an equation:
x + 8 = 3x - 9
bring 3x to the other side, by subtracting it
-2x + 8 = -9
Subtract 8
-2x = -17
divide by -2
x = 8.5
Then, just sub x into the formulas
(WILL MARK AS BRAINLIEST) How do you know if a set of information shows a proportional relationship? Select ALL that apply.
If AB = 10, and BC = 5, what is the value of CD?
What is the mean? 20,22,25,28,29,30,33,34 ( Show work )
Please help and thanks.
Answer:
27.6
Step-by-step explanation:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Answer:
27.625
Step-by-step explanation:
you need to add all those numbers and then divide your answer by the amount of numbers there are
20+22+25+28+29+30+33+34 =221
221÷8
1. Jonathan bought 10lb of flour at $7.50. He had a store coupon for $0.79. What was the
final price for the flour?
the answer and work
Answer:
6.71
Step-by-step explanation:
The solution should be $6.71 because when you subtract $7.50 and $0.79 you end up with $6.71.
