Find the surface area of the regular pyramid. Write your answer as a decimal.

It has a pentagonal base of 84.3 sq cm and the dimensions of the triangles are 7 cm across and 9 cm tall.

Answers

Answer 1

7x9=63/2=31.5

31.5x4= 126

7x7=49

126+49=175

The surface area of the pyramid would be 175cm^2


Related Questions

In parallelogram HJKL if m<KLH=170 find m<LHJ​

Answers

Answer:

bro what is even happening here

so confused but okay

Answer:

∠ LHJ = 10°

Step-by-step explanation:

Consecutive angles in a parallelogram sum to 180°

Then

∠ KLH + ∠ LHJ = 180°

170° + ∠ LHJ = 180° ( subtract 170° from both sides )

∠ LHJ = 10°

13. Find KL.
J
K
72°
14
L
51°
M

Answers

Answer:

tan51 = JL ÷ 14

JL = 17,29

cos72 = KL ÷ 17,29

KL = 5,34

From the given information JLK = 72°, JM = 14 and JML = 51°. The distance of KL is 5.34.

What are the trigonometric ratios?

Trigonometric ratios for a right-angled triangle are from the perspective of a particular non-right angle.

In a right-angled triangle, two such angles are there which are not right angled(not of 90 degrees).

The slanted side is called the hypotenuse.

From the considered angle, the side opposite to it is called perpendicular, and the remaining side will be called the base.

It is given that

JLK = 72°

JM = 14

JML = 51°

tan51 = JL / 14

JL = 17.29

cos72 = KL / 17.29

KL = 5.34

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Find P (Horse/Female) Hint: P(A and B)/P(B)

Answers

the answer is 6 at the top and 9 at the bottom but the answer for that question is 6.

Answer:

1/13

Step-by-step explanation:

Step 1: Find the number of horses and divide it by the number of females.

2 Horses / 26 Females

Step 2: Simplify the fraction.

1 Horse / 13 Females

Final Answer:

1/13

Kevin went bowling with $25 to spend. He rented shoes for $5.25 and paid $4.00 for each game. What inequality could be used to find g, the greatest number of games Kevin could have played?
A. 4 + 5.25 ≥ 25
B. 9.25 ≤ 25
C. 4 + 5.25 ≤ 25
D. 9.25 ≥ 25

Answers

Answer:

25 greater than or equal to symbol 5.25 + 4g

Step-by-step explanation:

i put the upload so you can see!

brainliest?

A licorice rope is 7 inches long. If four 5th graders share the licorice equally amongst themselves, what length of licorice will each student get?

Answers

Answer:

1.4 Inches Each

Step-by-step explanation:

This problem is fairly simple. Just divide 7 by 5 and put the correct units(inches) with the answer.

length of licorice each student will get is 1.875 inches.

What is simplification?

A mathematical expression gets simpler when it is transformed into an equivalent, frequently shorter statement. One strategy for promoting uniformity in job effort, cost, and time is procedure simplification. It lessens diversity and variation that is harmful, unwanted, or unneeded.

Given, A licorice rope is 7 inches long. If four 5th graders share the licorice equally amongst themselves.

Since every 5th grader is sharing the rope equally.

Thus everyone will get = 7/4

Every 5th grader will get = 1.875 inches

Therefore, every 5th grader will get 1.875 inches length of licorice.

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GEOMETRY NEED HELP AS FAST AS POSSIBLE

Answers

In the given diagram, the value of x is 15

Pythagorean theorem

The Pythagorean theorem states that, in a right triangle, the square of the longest side (hypotenuse) equals sum of squares of the other two sides

From the question, we are to determine the value of x.

x is the radius of the circle

Recall: Radius is any line that runs from the center to any part of the circumference

Consider the right triangle formed, x is the hypotenuse

By the Pythagorean theorem,

x² = 9² + 12²

x² = 81 + 144

x² = 225

x = √225

x = 15

Hence, the value of x is 15.

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Danna deposited $850 in with an rate of 2.9% . find the amount of interest earned and the value of the account after 5 years

Answers

Answer:

In 5 years, Danna have $980.61

Step-by-step explanation:

Can someone please help me on this problem?

Answers

Answer:

$5820.07

Step-by-step explanation:

Substitute 243 into the equation for n:

[tex]c=117\sqrt[3]{243^{2} }+1264\\c=117\sqrt[3]{59049}+1264\\c=117*38.9407384+1264\\c=4556.06639+1264\\c=5820.06639[/tex]

Round 5820.06639 to the nearest hundredth:

5820.07

$5820.07

2x+1.25=3.5 find the value of x

Answers

Answer:

x=1.125

Step-by-step explanation:

Isolate the variable by evalaluting

Answer:

1.125

Step-by-step explanation:

subtract 1.25

2x = 2.25

divide by 2

x = 1.125

Please help I’ll make you the brainiest

Answers

Answer:

Length of smaller side = 15 inches

Length of bigger side = 36 inches

Length of hypotenuse = 39 inches

Step-by-step explanation:

Given:

Length of smaller side = a

Length of bigger side = (a + 21) inches

Length of hypotenuse = (a + 24) inches

Find:

Length of all side

Computation:

Using Pythagorean theorem

Hypotenuse² = Base² + Perpendicular²

(a+24)² = a² + (a+21)²

a² + 576 + 48a = a² + a² + 441 + 42a

a² - 6a - 135 = 0

(a-15)(a+7)

So

a = 15 inches a = -7 inches

So,

Length of smaller side = a = 15 inches

Length of bigger side = (a + 21) inches = 15 + 21 = 36 inches

Length of hypotenuse = (a + 24) inches = 15 + 24 = 39 inches

The number of bacterial cells, B, in a container after t hours is given by B=25x2t After how many hours will there be 400 bacterial cells in the container?

Answers

Answer:

8 hours

Step-by-step explanation:

We have that;

B = number of bacterial cells, B, in a container after t hours

t = time taken in hours

The function is;

B=25x2t

Where B = 400 bacterial cells

400 = 25x2t

t = 400/25x2

t = 8 hours

Select all the expressions that are equivalent to 3x−4+2x−6.

Answers

Answer:

5x-10

Step-by-step explanation:

3x-4+2x-6

group like terms

3x+2x -4--6

5x-10

The expressions that are equivalent to 3x - 4 + 2x - 6 are:

5x - 2 - 6

5x - 16

To determine which expressions are equivalent to 3x - 4 + 2x - 6, we can simplify the given expression:

3x - 4 + 2x - 6

Combining like terms, we have:

(3x + 2x) + (-4 - 6)

Simplifying further:

5x - 10

Now, we can compare this simplified expression to the provided options:

a) 3x + 2x - 10

b) 5x - 2 - 6

c) 5x - 16

d) 6x - 10

By comparing the simplified expression 5x - 10 to the options, we find that options b) (5x - 2 - 6) and c) (5x - 16) are equivalent expressions.

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Please help I WILL GIVE BRAINLIEST

Answers

Answer:

[tex]\triangle{XAZ} \cong \triangle{XBY}[/tex] by the SAS postulate (side-angle-side)

Step-by-step explanation:

This is an overlapping triangles problem.  Try drawing them separately, essentially pulling them apart.  Mark side XY and XZ as congruent (given).

Angle X is shared by the two triangles, so angle X in triangle XAZ is congruent to angle A in triangle XBY.

(a) Although neither a linear nor an exponential function would model this data perfectly, justify why an

exponential function would be a much better fit. Specifically, explain both why a linear function would not

be a good fit while an exponential would be reasonable.?

Answers

Answer:

hello the table related to this question is missing attached below is the missing table

answer : An exponential function is much better fit because there is no fixed rate in the table

Step-by-step explanation:

An exponential function is much better fit because there is no fixed rate in the table attached but the values in the table keeps increasing exponentially, hence an Exponential function will be a better fit, But a linear function would be preferred only if there is a fixed rate

The fountain is made up of two semicircles and one quarter circle. Find the perimeter and area of the fountain.

Answers

Answer:

628ft²

Step-by-step explanation:

From the diagram, we are given the following

diameter of the semicircles

2semi circles  = 1 circle

Area of 2semicircles = πd²/4

Area of 2semicircles = 3.14(20)²/4

Area of 2semicircles = 3.14*400/4

Area of 2semicircles = 3.14*100

Area of 2semicircles = 314ft²

Area of the quarter circle =  πd²/4 * 1/4

Area of the quarter circle =  πd²/16

d = 2r

d = 2*20

d = 40ft

Area of the quarter circle  = 3.14(40)²/16

Area of the quarter circle = 3.14*1600/16

Area of the quarter circle = 3.14*100

Area of the quarter circle = 314ft²

Area of the fountain = 314ft²+314ft²

Area of the fountain = 628ft²

find the value of x

Answers

Answer: -23

Step-by-step explanation:

Pls help me, I get so confused with math TwT

Answers

Answer:

did u ask sir

Step-by-step explanation:

or googel first

Answer:2?

Step-by-step explanation:

The difference is two numbers between 0 and 2

Which triangle is congruent to the figure below?

Answers

Answer:B

Step-by-step explanation: because it is trust me

Answer:

The answer is B

What is the volume of the prism below?
A. 56 units 3
B. 144 units
C. 288 units
D. 180 units

Answers

Answer:

C ,288

Step-by-step explanation:

hope this helps

what is 23456 × 79825​

Answers

Answer:is 1,872,375,200

Step-by-step explanation:

Answer:

1872375200 answer is !!!

What is the formula for the circumference using the radius below?

Answers

Answer:

2π(5)

Step-by-step explanation:

Circumference

C=2πr

Help me please someone!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I'm  pretty sure its J

Step-by-step explanation:

try it on desmos just to be sure

You hike 210 meters up a steep hill that has a 31 degree angle of elevation as shown in the diagram.



Give each side and angle measure rounded to the nearest whole number

Answers

Answer:

Step-by-step explanation:

A—>108m

B—>180m

M<B—> 59°

The side BC and AC and the angle B is 108 m,180 m and 59°.

What is the triangle?

A triangle is a polygon that has three sides and three angles. The sum of the angle of the triangle is 180 degrees.

[tex]\rm sin \theta = \frac{P}{H} \\\\ \rm sin 31^0= \frac{a}{210} \\\\ a=108 \ m[/tex]

[tex]\rm cos \theta = \frac{B}{H} \\\\ \rm cos 31^0 = \frac{b}{210} \\\\ b=180 \ m[/tex]

The measure of the angle of triangle is 180°

∠A+∠B+∠C=180°

31°+∠B+90°=180°

∠B=59°

Hence, the side BC and AC and the angle B is 108 m,180 m and 59°.

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What is -4/5 + 4/5 = ?

Answers

Answer:

0.

Step-by-step explanation:

I can't really explain it, but think of it is 4/5 - 4/5 instead of -4/5 + 4/5.

Which equation would demonstrate the identity property? A. (3 • 4) + (3 • 5) = 3(4 + 5) B. 3 • 5 = 5 • 3 C. 3 • 4 • 5 = (3• 4) • 5 D. 4 • 1 = 4

Answers

Answer:

D. 4 • 1 = 4

Step-by-step explanation:

In Mathematics, we have two kinds of Identity property

a) Identity property of Addition

This means that when you add a number to zero, it gives you that same number

Example: 6 + 0 = 6

b) Identity property of Multiplication,

This means that, when a number is multiplied by 1, it gives that same number.

Example: 8 × 1 = 8

Therefore, from the above question, the equation that demonstrates identity property is 4 • 1 = 4

Option D is the correct answe

Angles 1 and 2 are supplementary. Angle 2 is 1/5 the size of angle 1. What are the degree measurements of each angle?

Answers

Answer:

the stated ratio means that of the 180 degrees involving two supplementary angles, the smaller angle is one sixth of that whole. Thus the smaller angle measures 30 degrees & the larger measures 150 degrees.

Step-by-step explanation:

We paid $8 for 2 hamburgers, which is a rate of $_
per hamburger

Answers

ANSWER: $4 per hamburger
4$ each for the hamburger

!!!KHAN ACADEMY!!! help please

Answers

Use photomath lollllll

Ryan is riding his bike. He biked a distance of 12 miles at a rate of 4 miles per hour. Rearrange the distance formula, d = rt, to solve for Ryan's time in minutes.

CAN YOU VERIFY THAT THE ANSWER IS 180?? i think it is but I wanna make sure :)

480 minutes
180 minutes
8 minutes
3 minutes

Answers

Answer:

distance =12 miles

speed =4 miles per hour

Time=?

t =d/s

t= 12/4

time= 3 minutes

Is the square root of 65 rational or irrational?​

Answers

Step-by-step explanation:

[tex] \sqrt{65} [/tex]

As it can't be expressed in the form p/q, where q is not equal to 0,

Hence,

square root 65 is an irrational

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