An equilateral triangle has sides of length 10 cm.
**DIAGRAM IN PICTURE**
a. Calculate the perpendicular height, h, of the triangle.
b. Calculate the area of the triangle.
Give your answers correct to one decimal place. 10 cm 10 cm 10 cm
Answers
Answer:
a. 8.7cm
b. 43.5cm squared
Step-by-step explanation:
a. draw the triangle with a side length of 10cm, and measure the height which is 8.7cm.
b. formula to find the area of a triangle: (base into height) divided by 2 ((b x h) / 2)
the base is 10
the height is 8.7
(10 x 8.7)/2 = 87/2 = 43.5 cm squared
B is 43.5 cm
Related Questions
PLEASE HELP NOW
what is 9 - 4x^3 + 2x^2 + 8x^3 + 1 + 6x^2 simplified??
Answers
NO VIRUS LINKS!!! Since opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. On what day(s) was the attendance the same at both plays? What was the attendance?
Play A, y= 9x+64
Play B, y= -x^2+26x+12
Answers
Answer:
I pretty sure the answer is A
Step-by-step explanation:
1.Since opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. On what day(s) was the attendance the same at both plays? what was the attendance?
Play A: y=7x+84
Play B: y=-x^2+40x-6
A. The attendance was the same on day 30. The attendance was 294 at both place that day.
B.The attendance was the same on day 3. The attendance was 105 at both place that day.
C. The attendance was never the same at both plays
D. The attendance was the same on days 3 and 30. The attendance at both plays on those days was 105 and 294 respectively.
PLS HELP GIVING BRIANLIEST
Answers
Answer:
220 yards or A
Step-by-step explanation:
2*60=120
15*1760=26400
26400÷120=220
The quantities x and y are proportional
x y
12 36
18 54
25 75
Find the constant of proportionality (r) in the equation y = rx.
Answers
Which expression makes the equation true for all values of x?
16x - 16 = 4( ? )
A 4x - 4
B 4x - 16
C 2x - 2
D 12x - 12
Answers
Answer:
A since if we multiply 4 × 4x, we get 16x, and 4 × 4, we get 16, which cancels with the other 16x - 16 on the left side. That makes sure that any x we choose will cancel out in the end.
Step-by-step explanation:
1. 16x - 16 = 4(4x-4)
2. 16x - 16 = 16x - 16
3. 0 = 0
4x16 - 16 = 48
16x4-16=48
Help me with this asap!!!!!
Answers
Answer:
Step-by-step explanation:
8x-4 >12
8x > 16
x >2
Answer choice R
helppppppppppppppppppppppppppppppppppppppppp
Answers
Answer:
D 90%
Step-by-step explanation:
which statement is true?
a. -4 = 4
b. -5 < -3
c. -2 > -1
d. 3 > 0
Answers
Answer:
c. -2 > -1
d. 3 > 0m
:
I’m kinda confused ab this one-
Answers
Q2) r=4cm, h=4cm. Find the volume of the right cylinder
Answers
Answer:
Formula of a Right Cylinder:
V=r ²h
V=(4)²(4)
V=(16)(4)
V=64
the answer to your question would be A) 64
Explanation:
I don't know for sure tho ... nah I'm jus playin , I'm valid
no links! im suuuuper d u m b so um- help? please? I dont think its a right isosceles either T^T
Answers
Answer:
x = 25º, right scalene triangle
Step-by-step explanation:
The interior angles of a triangle add up to 180º.
The red square indicates the angle measure is 90º.
We are left with two other angles, x and (2x + 15).
Let's set up an equation to represent the angle measures
90 + x + (2x + 15) = 180
First, combine like terms.
90 + x + 2x + 15 = 180
105 + 3x = 180
Subtract 105 from both sides to isolate x.
3x = 75
Divide both sides by 3 to further isolate x.
x = 25º
Let's check our answer by plugging it back into our original equation.
90 + x + (2x + 15) = 180
90 + 25 + (2(25) + 15) = 180
Simplify.
90 + 25 + (50 + 15) = 180
90 + 25 + 65 = 180
115 + 65 = 180
180 = 180
Your answer is correct.
x = 25º
Now we need to classify the triangle.
As stated before, the red square indicates the angle measure is 90º. This means our triangle is a right triangle.
Because the other two angle measures are different from one another, we know that the side measures cannot be equal. This leaves us with a scalene triangle.
Your answer is: right scalene triangle
Hope this helps!
Please Help! *Middle school math* Please provide answer and explanation. A pack of cards contain 52 cards. How many cards are in 12 packs?
Answers
Answer:
624 cards
Step-by-step explanation: 52 x 12 = 624
Answer:
624
Step-by-step explanation:
52 x 12 = 624
HELP PLEASE- i attached the pic
Answers
Step-by-step explanation:
ℎ 8 2 16 ℎ . 81 8 16-8 ℎ ℎ “ “
-
Solve the question in the screenshot
Answers
Answer:
Step-by-step explanation:
most students study less than 4 hours
thats the only one i think i know lol
NO LINK ANSWERS
A zoo train ride costs $4 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who took the ride was 27, and the total money collected was $60. What was the number of children and the number of adults who took the train ride that day, and which pair of equations can be solved to find the numbers? (1 point)
11 children and 16 adults
Equation 1: a + c = 27
Equation 2: 4a + c = 60
16 children and 11 adults
Equation 1: a + c = 27
Equation 2: 4a + c = 60
11 children and 16 adults
Equation 1: a + c = 27
Equation 2: 4a − c = 60
16 children and 11 adults
Equation 1: a + c = 27
Equation 2: 4a − c = 60
Answers
Answer:
16 children and 11 adults
Equation 1: a + c = 27
Equation 2: 4a + c = 60
Step-by-step explanation:
Solve for X
x + 4.6 = 12.96
Answers
Answer:
x = 8.36
Step-by-step explanation:
First, subtract 4.6 from both sides of the equation, then just simplify.
Answer: x = 8.36
(same thing as 209/25)
Step-by-step explanation:
Move the constant to the right hand side and change its sign.
x = 12.96 - 4.6
Subtract the numbers.
x = 8.36
Simplify. Write the expression using only positive exponents.
Answers
Answer:
w^6/9
Step-by-step explanation:
w to the power of 6 divided by 6
PLS HELP, WILL REWARD BRAINLIEST !!
Answers
Ummm The is no pattern to the data
Please Help Me ASAP
The table shows the pricing for four different brands of cat food.
Which brand costs the least per once?
A)
B)
C)
D)
Answers
Answer:
That'll be C let me know if im wrong <3
Someone please help me
Answers
Answer:
2
Step-by-step explanation:
They are 2 units apart from each other
Help plzz and dont give me a file to look at and I would like the correct answer
Answers
Answer:
70+(8x+30)=180
-70 -70
8x+30=110
-30 -30
8x=80
x=10
Step-by-step explanation:
hope that helped! have a great day or night :)
(16−10) 2−(20÷5)×3 exponet 2
to three
Answers
What is the surface area of this triangular pyramid?
Answers
Answer:
here you go
Step-by-step explanation:
To find the slant height of triangular faces: The slant height of a triangular pyramid is generally represented by 's'. Add all the areas together. Thus, the surface area of a triangular pyramid formula is 1⁄2(a × b) + 3⁄2(b × s) in squared units.
The surface area of this triangular pyramid is 10.908 in².
We have,
Base of Triangle= 3 in
Height of Triangle= 3 inch
P = 3 inch
h = 4 inch
Now, slant height= √4² + 1.5² = √16+2.25 = 4.272 inch
So, the Surface Area of Triangular Pyramid
= base Area + 1/2 x 3 x 4.272
= 1/2 x 3 x 3 + 6.408
= 4.5 + 6.408
= 10.908 in²
Thus, the surface area of this triangular pyramid is 10.908 in².
Learn more about Surface Area of Pyramid here:
https://brainly.com/question/32228774
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Laura went to a golf shop that has a golf simulator. The simulator estimates the distance that each ball she hits would have gone. She hit five balls each with her 2, 3, 4, 5, 6, 7, 8, and 9 irons. The distances of her golf shots are given in the table. Keep this table window open as you work on the tasks in this activity.
When Laura graphed the data, she got this scatter plot and drew a line of best fit. Keep the scatter plot window open as you work on the tasks in this activity.
When her brother graphed the data, he got a different scatter plot and drew a line of best fit. Keep the scatter plot window open as you work on the tasks in this activity.
Part A
Whose scatter plot matches the data, and what is wrong with the incorrect scatter plot?
Part B
Using the correct graph, describe the association shown
Part C
What is the slope of the line in the correct graph? What is the slope of the line in the incorrect graph? Are the slopes the same or different?
Part D
What is the y-intercept of the correct graph? What is the y-intercept of the incorrect graph? Are the y-intercepts the same?
Part E
If Laura were able to find a 0 iron, about how far could she hit it?
Part F
About what is the average change in distance for each increase of 1 in the iron number? What does this mean in terms of the situation?
Answers
Answer:
I can only help you with Part C and E as these two are the ones I am able to answer.
Part C: slopes are not the same
Part E: 195 yards
Step-by-step explanation:
Part C:
Part E: The slope of the line follows a linear pattern; therefore, find the equation for the line by calculating the slope and plugging in a point.
Slope:
y2-y1/x2-x1; (9, 105) (8,115)
(115-105)/(8-9) = -10; the slope is -10, now solve for the equation of the line.
y=mx+b; plug in the point (9,105)
105 = -10(9) +b
105 = -90 +b, add 90 to both sides
195 = b; rewrite the equation;
y=-10x+195; x stands for the iron, plug in 0 for x;
y=-10(0)+195
y=195 yards.
Answer:
A The scatter plot that matched the data is the second scatter plot while the first scatter plot wrongly represents the data because values of the Iron not present in the data is also represented in the scatter plot and also some values present in the data table is also missing in the First scatter plot.
B The scatter plot describes the strong negative association because in the scatter plot strong downhill linear relationship.
C In mathematics the slope or gradient of a line is a number that describes both the direction and the steepness of the line. Slope is denoted by the letter m in the equation of a straight line "y = mx + c".
D 195 yards
F im unsure of F i am sorry.
Step-by-step explanation:
Plot the following points on the coordinate plane and
connect them to create a polygon. Then, find the
perimeter of the polygon.
A(1,3)
B (3,3)
C(3,-2)
D(-2,-2)
E (-2,0)
F(0,0)
G(0,2)
H (1,2)
I(1,3)
The polygon I created is a _. The perimeter is _ units
Answers
Answer:
a
Step-by-step explanation:
your help would be appreciated :)
Answers
Answer:A
Step-by-step explanation: use algebra to find the value in the absolute value symbols which is 10/3. Then multiply that by -1 which gets you -10/3. Then multiply -10/3 with the reciprocal of 5/6 which gets you -4
Task 2 Student Directions: Use the given measurements to find the amount of siding needed to
cover the Warehouse. You're your work for ALL questions.
Answers
Answer:
the answer is 3722
Step-by-step explanation:
Please help me on this question
Answers
Answer:
The answer is A. Quadratic function
Step-by-step explanation:
Answer:
your correct answer is A
Step-by-step explanation:
On a certain hot summer's day,432 people used the public swimming pool. The daily prices are $1.50 for children and $2.00 for adults. The receipts for admission totaled 664.50How many children and how many adults swam at the public pool that day?
Answers
Answer:
399 children, 33 adults
Step-by-step explanation:
Children = c
Adults = a
c + a = 432
a = 432 - c
1.5c + 2a = 664.50
1.5c + 864 - 2c = 664.50
-.5c + 864 = 664.50
-.5c = -199.5
.5c = 199.5
c = 399
432 - 399 = 33
a = 33
Answer:
kids = 399
adults = 33
Step-by-step explanation:
Tell which rule applies to each expression
Answers
Answer:
1. Product
2. Power
3. Quotient and power
Step-by-step explanation:
Product is for multiplication
Power is for exponents
Quotient is for division