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guapka [62]
3 years ago
12

Ade has two similar scale models of the same pyramid. The first model has a

Mathematics
1 answer:
Aloiza [94]3 years ago
4 0

Answer: 242.7 square inches

Step-by-step explanation:

Hi, to answer this question we have to apply proportions:

The first model has a height of 5 inches and a surface area of 80.9 square inches:

The proportion is : height/ surface area= 5 in / 80.9 in2

For a height of 15 inches

15 in/ x in2

So:

5/80.9 = 15/x

x= 15/ (5/80.9 )

x= 242.7 square inches

Feel free to ask for more if needed or if you did not understand something.  

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Find the length of AB, given that DB is a median of the triangle and AC = 44.
pychu [463]

The length of the AB is 22 units if the length of AC is 44 units and DB is the median of the triangle.

<h3>What is the triangle?</h3>

The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.

The figure is missing.

The figure is attached to the picture, please refer to the picture.

We have a triangle shown in the picture.

As we know, the median bisects the side length into two equal parts.

AB = AC/2

AC = 44 units

AB = 44/2

AB = 22 units

Thus, the length of the AB is 22 units if the length of AC is 44 units and DB is the median of the triangle.

Learn more about the triangle here:

brainly.com/question/25813512

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6 0
2 years ago
Y=x+6 on a coordinate plane. (3 points graphed).
lyudmila [28]

Answer:

For  

x

=

6

y

=

−

6

+

6

y

=

0

or  

(

6

,

0

)

Second Point: For  

y

=

4

y

=

−

4

+

6

y

=

2

or  

(

4

,

2

)

We can next plot the two points on the coordinate plane:

graph{((x-6)^2+y^2-0.035)((x-4)^2+(y-2)^2-0.035)=0 [-10, 10, -5, 5]}

Now, we can draw a straight line through the two points to graph the line:

graph{(y+x-6)((x-6)^2+y^2-0.035)((x-4)^2+(y-2)^2-0.035)=0 [-10, 10, -5, 5]}

Step-by-step explanation:

8 0
3 years ago
{12x + 4y = 15232x + 12y = 42012x + 4y = 15232x + 12y = 420 In the equations, xx represents the cost of a chicken lunch and yy r
a_sh-v [17]
{12x 4y = 15232x 12y = 42012x 4y = 15232x 12y = 420?In the equations, xx represents the cost of a chicken lunch and yy represents the cost of a v.... I think...  "Xx represents the cost of a chicken lunch..."

6 0
3 years ago
Select the correct answer.
Brums [2.3K]

Answer:

5 4/9

Step-by-step explanation:

Convert a mixed number 2 19

to a improper fraction: 2 1/9 = 2 19 = 2 · 9 + 19 = 18 + 19 = 199

To find new numerator:

a) Multiply the whole number 2 by the denominator 9. Whole number 2 equally 2 * 99 = 189

b) Add the answer from previous step 18 to the numerator 1. New numerator is 18 + 1 = 19

c) Write a previous answer (new numerator 19) over the denominator 9.

Two and one ninth is nineteen ninths

Add: 19

9+ (-29) = 19 + (-2)9= 179

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(9, 9) = 9. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 9 × 9 = 81. In the next intermediate step the fraction result cannot be further simplified by canceling.

In words - nineteen ninths plus minus two ninths = seventeen ninths.

Conversion a mixed number 3 59

to a improper fraction: 3 5/9 = 3 59= 3 · 9 + 59= 27 + 51 = 329

To find new numerator:

a) Multiply the whole number 3 by the denominator 9. Whole number 3 equally 3 * 99 = 279

b) Add the answer from previous step 27 to the numerator 5. New numerator is 27 + 5 = 32

c) Write a previous answer (new numerator 32) over the denominator 9.

Three and five ninths is thirty-two ninths

Add: the result of step No. 2 + 32

9= 179+ 329 = 17 + 329 = 499

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(9, 9) = 9. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 9 × 9 = 81. In the next intermediate step the fraction result cannot be further simplified by canceling.

In words - seventeen ninths plus thirty-two ninths = forty-nine ninths.

7 0
3 years ago
What is a square root?
Alex777 [14]

Answer:

a number which produces a specified quantity when multiplied by itself.

Step-by-step explanation:

7 is a square root of 49"

8 0
3 years ago
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