Answers
Answer:
The surface area of the pyramid is 340.2 cm²
Step-by-step explanation:
We can find the surface area of this pyramid by adding up the area of its square base and the four side triangles.
We're told that the base has a side length of 9.0 cm, so we know that its area is (9.0cm)², or 81cm²
We are told that the height of the side triangles is 14.4 cm. To find the area of a triangle, simply multiply its width times its height, and divide by two:
(14.4cm × 9cm) ÷ 2
= 129.6cm² ÷ 2
= 64.8 cm²
Now we can multiply that by 4, and add it to the base area to get the total surface area of the pyramid:
4 × 64.8cm² + 81cm²
= 259.2cm² + 81cm²
= 340.2cm²
Related Questions
Which fractions are equivalent to 2/12 + 4/12? Check all that apply.
[] 1/2
[] 2/4
[] 3/6
[] 2/3
[] 3/4
Answers
Answer:
1/2
2/4
3/6
Step-by-step explanation:
I will mark you brainiest if you can answer this
Answers
Answer:
A) 12/8, 15/10, and 9/6
or 3/2, 3/2, and 3/2
B) PQR = PQ'R' or PQR is congruent with PQ'R'
C) You can tell the corresponding angles of PQR and PQ'R' are congruent because they have the same angle degree and have a proportionate ratio.
Step-by-step explanation:
A) PQ' = 12 and PQ = 8, Q'R" = 15 and QR = 10, PR' = 9 and PR = 6
GCF (12, 8) = 4, GCF (15, 10) = 5, GCF (9, 6) = 3
Round 75.434 to the nearest hundredth
Answers
Explanation:
I’m sure it’s right but not. oof.
Tony pays $25 for his monthly phone service and $.07 for each minute of talk time. If his May bill cost $54.54, how many minutes did he talk on the phone for?
Answers
Answer:
im not sure but i think he talked on the phone
for 7 hours. if this isnt right im sorry. if it is
please mark brainliest
Step-by-step explanation:
Identify the constants
Answers
Step-by-step explanation:
the constant is 6..............
In an orchard of apple and peach trees, 3/7 of the trees are peaches. What is the ratio of apple trees to peach trees?
Answers
The ratio of apple trees to peach trees, if 3/7 of the trees are peaches is
4:3.
A ratio compares two quantities by division, with the dividend or number being divided termed the antecedent and the divisor or number that is dividing termed the consequent.
Ratios compare two numbers, usually by dividing them. If you are comparing one data point (A) to another data point (B), your formula would be A/B. This means you are dividing information A by information B.
We have been given that
In an orchard of apple and peach trees, 3/7 of the trees are peaches.
Find out
The ratio of apple trees to peach trees?
To simplify a ratio, divide each number in the ratio by the same amount. To fully simplify a ratio, divide each number in the ratio by their highest common factor. Always keep the numbers in the ratio as whole numbers.
Let the number of total trees in orchard is 7 i.e. denominator of fraction.
Then the no. of peaches tree are 3
so the no. of apple tree in the orchard = 4
Hence , If 3/7 of the trees are peach trees, the ratio of apple trees to peach trees is 4:3.
To learn more about Ratio
https://brainly.com/question/3796978
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What is the solution for x in the equation?
-4 + 5x - 7 = 10 + 3x - 2x
ОА.
21
1 =
OB.
OC.
13
1
OD.
1 =
4
21
Answers
Answer:
Step-by-step explanation:
OA. -1 OB. -4 oc. o OD. 16 OE-2 QUESTION 11 Find the particular solution to the differential equation dy - 4x dx y if y(1)=4 OA Y = 7x-3 OB. Y=2x2 + 14 Oc V=4x2 + 12 ODV= 2x+6 3 E. V=x? +3 Let f(x) = x4 - 3x3 + 3x? - 1. Find the intervals on which the graph of f(x) is concave down.
some marbles in a bag are in the ratio. green : red = 3 : 4 what is the ratio red : green?
Answers
Answer: 3 : 4
Step-by-step explanation:
I hope this helped if wrong I'm not sure what the answer is
Help me please with this
Answers
Answer:
(3,2)
Step-by-step explanation:
2x+5y=16
3x-5y=-1
add
5x= 15
x=3
plug back in
2(3)+5y=16
6+5y=16
5y=10
y=2
an apple tree measure 20 1/2. Over the next 5 years, it grew the height of 28 feet.what was the average yearly growth of the apple tree
Answers
Explanation:
1. Subtract the original height (20½) from the height it is after five years (28). (28-20½=7½)
2. Divide the difference (7½) by the number of years (5) to get the answer. (7½÷5=1½)
What is the value of x?
Please help
Answers
Step-by-step explanation:
[tex]360 = 60 + 4x \\ 360 - 60 = 4x \\ 300 = 4x \\ \frac{300}{4} = \frac{4x}{4} \\ x = 75[/tex]
The total internal angle of the polygon is 360°. Since there are 4 unknown angles but the same, we would just add all those to 60° to equal a full 360°.
During the summer, Breanna works at a coffee shop. She saves 75% of her earnings to buy new school clothes. If Breanna earns $750, what is the best estimate for the amount of money she saves to buy clothes?
Answers
Answer: The best estimate for the amount of money she saves to buy clothes = $ 562.5
Step-by-step explanation:
Given: Breanna saves 75% of her earnings to buy new school clothes.
Earnings for Breanna = $ 750
The amount of money she saves to buy clothes = 75% of 750
= 0.75 x 750 [75%= 0.75]
= $ 562.5
Hence, the best estimate for the amount of money she saves to buy clothes = $ 562.5
which is a right angle?
Answers
Answer:
A
Step-by-step explanation:
Write equation of a line that is parallel to y = 2x -3
Answers
ex. y = 2x + 1
An equation of a line parallel to y=2x-3 would be y=-2x-3.
i need this done please
Answers
Answer:
11/15
Step-by-step explanation:
There are 15 jellies in a box and 11 of them are not red so your answer should be 11/15.
Which of the following best describes how to measure the spread of the data?
The IQR is a better measure of spread for movies than it is for basketball games.
The standard deviation is a better measure of spread for movies than it is for basketball games.
The IQR is the best measurement of spread for games and movies.
The standard deviation is the best measurement of spread for games and movies.
Answers
Answer:
C. The IQR is the best measurement of spread for games and movies
Step-by-step explanation:
In a box plot, the Interquartile Range (IQR) can be gotten by finding the range of the rectangular box. That is, The third Quartile (Q3) - the first quartile (Q1).
The IQR is a measure of spread, and it would be appropriate for measuring spread of the data for both Movies and Basketball games displayed by the box plot.
Answer:
C
Step-by-step explanation:
There are 7.55 grams of sugar in 5 servings of strawberries. How many grams of sugar are in a single serving of strawberries?
Answers
Answer:
1.51
Step-by-step explanation:
Divide 7.55 by 5 and it equals 1.51
Can someone give me the answer
Answers
Answer:
B=YZ/20A
Step-by-step explanation:
(If your answer is correct,I'll mark you as brainliest.) John commutes each day to work either by train or by bus the bus cost 10 + 2 per trip the train cost 15 + $1.50 per trip. What is the most number of trips John can make before the bus cost more than the train?
Answers
Answer:
8 trips.
Step-by-step explanation:
15 + 1.50 = 16.50
16.50 divided by 2 = 8.25
Translate this in Sentence properly.
1. y≤x-1
2.y<-2x+1
3.4x+2y≤-6
4.x≥-3
5.y= -3x+ 1
Answers
Answer:
um chile anyways so
Step-by-step explanation:
ಠ_ಠ༼ つ ◕_◕ ༽つ☜(ﾟヮﾟ☜)(☞ﾟヮﾟ)☞(•_•)(┬┬﹏┬┬)
Write an expression for “k divided by four”.
Answers
Answer:
k/4
Step-by-step explanation:
Please help this is due today and. I need to get it done fast!!!
I will mark Brainliest if there are multiple answers!!!
These shapes (in the photo attached) are similar. Find the value of x.
Please help!! I have posted this several times but no responses!
Answers
Answer:
There is no picture attached
Step-by-step explanation:
28.4 x 21.05 divided by 5.9
Answers
Answer:
101.325423729
Step-by-step explanation:
28.4 x 21.05 =597.82
597.82/5.9=101.325423729
Answer:
The answer is 101.325423729
Step-by-step explanation:
28.4 × 21.05 = 597.82
597.82 ÷ 5.9 = 101.325423729
the_is the vertical distance between two points
Answers
Answer:
Slope
Step-by-step explanation:
slope is the ratio of the vertical and horizontal changes between two points on a surface or a line
Answer:
rise
Step-by-step explanation:
did thequiz
take a look at the pics and help me please
Answers
you can look at the above photo
pls tell me what is x^2-3(x+2)
Answers
Answer:
x^2-3x-6
Step-by-step explanation:
x^2- (3*x)-(3*2)
x^2-3x-6
I need help with Geometry
Answers
Answer:
The correct answer is:
Option 2: Yes, because the slopes of lines are negative reciprocals.
Step-by-step explanation:
Given equations of lines are:
Line p: x+2y=1
Line q: y=2x+1
We can determine if two lines are parallel or perpendicular by comparing the slopes of line.
Slope intercept form of line is given by the formula
[tex]y = mx+b[/tex]
Equation of line q is already in slope intercept form.
We have to convert the equation of line p in slope-intercept form
[tex]x+2y = 1\\2y = -x+1\\2y = -\frac{1}{2}x+\frac{1}{2}[/tex]
Slope of line p = 2
Slope of line q = -1/2
We can see that
[tex]2.-\frac{1}{2} = -1[/tex]
The product of slopes of both lines is -1, hence, the lines are perpendicular.
Hence,
The correct answer is:
Option 2: Yes, because the slopes of lines are negative reciprocals.
Damarcus and Xavier went to the arcade to play their two favorite games. Damarcus played 4 rounds of game 1 and 6 rounds of game 2 for $18.00. Xavier played 5 rounds of each game for $20. What is the cost of game 1? A. $1.00 B. $2.00 C. $3.00 D. $4.00
Answers
Answer:
The correct option is (c).
Step-by-step explanation:
Let x and y denote the cost of game 1 and game 2 respectively.
ATQ,
4x+6y = 18 ....(1)
5x + 5y = 20 ....(2)
Multiply equation (1) by 5 and equation (2) by 4.
20x+30y = 90 ....(3)
20x + 20y = 80 ....(4)
Subtracting equation (3) and (4)
20x+30y - (20x + 20y) = 90-80
20x-20x+30y-20y = 10
10y = 10
y = 1
Put the value of y in equation (1).
4x+6(1) = 18
4x = 18-6
4x = 12
x = 3
Hence, the cost of game 1 is $3.00
Can you solve the system of equations by elimination
2x + 3y = 16
5x - 2y = 21
Answers
If f(x) = 2x²–5x+3, find f(x+1)
Answers
Answer:
[tex]2x^{2}[/tex]-x
Step-by-step explanation:
To find (x+1) substitue x+1 into the function.
1. 2(x+1)^2-5(x+1)+3: Substitution
2. 2x^2+4x+2-5x+5+3: First do binominal expansion theorem for 1st one then distrubtive property for the first and second one.
3.Combine like with like
[tex]2x^{2}[/tex] , 4x+(-5x)= -x, 2-5+3=0 so
f(x+1)= [tex]2x^{2}[/tex]-x