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2 years ago

100 points

Mathematics

1 answer:

iragen [17]2 years ago

3 0

Student A is wrong and Student B is correct.

How?

Direction is saying to construct a line that passes through C
The last step is enough to describe that A is wrong.
Its saying to swing an arc(Should be line).
On the other hand Student B has done correct
By passing point through C and G it satisfies our required construction.

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Solve the inequality -1>-2(x-4)-5(4x-7)

g100num [7]

Answer:

Inequality Form - x>2

Interval Notation - (2,∞ )

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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3 years ago

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A student has a rectangular photograph with side lengths of 5 inches and x inches The area of the rectangle is 33 square inches.

Airida [17]

Answer:

1.32

Step-by-step explanation:

total area = 33

33/5 1/2 = 6 . X=6

5 1/2 x 1/2 = 2.75 . 6 x 1/2 = 3

2.75 x 3 = 8.25

new area = 8.25

8.25 x .13 = 1.32

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3 years ago

Find the total area for the regular pyramid.

hram777 [196]

Answer:

Option B

Step-by-step explanation:

Given is the hexagonal pyramid.

We know the radius of the base is same as its side.

Find the base area:

A = 3√3/2a²
A = 3√3/2*6² = 54√3

Given the height and radius, find the side of the lateral triangular faces:

$\sqrt{8^2+6^2} =\sqrt{100} =10$

Each of 6 triangles have sides 10, 10 and 6 units.

Find the area using heron's formula:

s = P/2 = (10*2 + 6)/2 = 13
s - a = s - b = 13 - 10 = 3
s - c = 13 - 6 = 7
$A = \sqrt{s(s-a)(s-b)(s-c)} =\sqrt{13*3*3*7} =3\sqrt{91}$

Total surface area:

$S = 6*3\sqrt{91}+54\sqrt{3} =18\sqrt{91}+54\sqrt{3}$

Correct choice is B

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2 years ago

Last year at Sarah's bakery she sold 38 birthday cakes for $57 per cake . She spent 1/2 of that money on ingredients for baking

Andrei [34K]

Sarah spent $1,083 because $57*38=$2,166 and $2,166/2=$1083

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3 years ago

Can someone please help me complete the table

Lady bird [3.3K]

Answer:

Step-by-step explanation:

-2, 1, 2, 4

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3 years ago