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Kruka [31]
3 years ago
9

Calculate the lateral area of the following equilateral triangular-basedpyramid.​

Mathematics
1 answer:
DedPeter [7]3 years ago
6 0

Answer:

81 mm^2

Step-by-step explanation:

Area= 3*6*9/2=81 mm^2

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If sea level = 0, write an integer that represents 25 feet below sea level.
Svetach [21]

Answer: -25

Step-by-step explanation:

6 0
3 years ago
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Find the regression line associated with the set of points. (Round all coefficients to four decimal places.) HINT (See Example 2
horrorfan [7]

The equation of the regression line is : Ŷ = 0.8571+0.8878X

Given the set of points :

(1, 2), (4,4), (9,9)

X axis : ___ Y axis

1 ___________2

1 ___________2 4 __________ 4

1 ___________2 4 __________ 4 9 __________ 9

The regression line associated could be obtained using technology such as excel, linear regression solvers or a graphing calculator.

Using technology :

Input the values of X and Y into their appropriate column and plot :

The regression equation obtained is :

Ŷ = 0.8571 + 0.8878X

Where :

Ŷ = predicted value of Y(dependent variable)

X = Independent variable

Slope = 0.8878

Intercept = 0.8571

The regression plot is attached below

Learn more : brainly.com/question/18405415?referrer=searchResults

7 0
2 years ago
Answer it right and i'll try to give you brainliest.
mario62 [17]

Answer:

384 cm²

Step-by-step explanation:

Since it is a square pyramid, the total surface area of the pyramid is the area of its square base plus the area of its 4 triangular faces.

\boxed{area \: of \: triangle =  \frac{1}{2} \times base \times height }

Area of a triangular face

= ½ ×12 ×10

= 60 cm²

\boxed{area \: of \: square = side \times side}

Base area of pyramid

= 12 ×12

= 144 cm²

∴ Surface area of pyramid

= 4(60) +144

= 240 +144

= 384 cm²

7 0
2 years ago
please help me with this
alexandr402 [8]

Answer:

a ue  añoe ss et o   q

Step-by-step explanation:

6 0
3 years ago
Select the two statements that are true about the equation −10=60(−40). A. The line has a slope of 10. B. The line has a slope o
Damm [24]

Complete question :

Select the two statements that are true about the equation y−10=60(x−40)

Answer:

m = 60

One point on the line is (40, 10)

Step-by-step explanation:

Given the equation :

y−10=60(x−40)

Comparing the equation with the point slope equation formula :

y - y1 = m(x - x1)

Where, x1 and y1 are points on the line

m = Slope

From here, we can deduce that:

y1 = 10 ; x1 = 40 and m = 60

(x1, y1) = (40, 10)

m = slope = 40

3 0
3 years ago
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