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3 years ago

What shape is the base of a pentagonal pyramid ?

Mathematics

1 answer:

Likurg_2 [28]3 years ago

7 0

Answer:

Step-by-step explanation:

The regular pentagonal pyramid has a base that is a regular pentagon and lateral faces that are equilateral triangles.

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The map shows the beach area on a coordinate plane. find the distance from the car to the cabana and then from the cabana to the

yan [13]

The answer is C 9 units because it's 3 units down and then 6 units from the cabana to the beach

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3 years ago

The edge of a cube is 6 inches. What is the total surface area of the package?

TEA [102]

Answer:

the answers is 216in²

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3 years ago

Please answer them alll 50 points

rodikova [14]

Answer:

1. slope -9

y-int (0, 3)

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y-int (0, -7)

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3 years ago

Are the equations 2x - y = - 4 and 3x + y = -1 dependent, independent or neither

steposvetlana [31]

Answer:

From the above calculations, it is clear that the consistent system has exactly one solution i.e. x = -1, y =2, therefore, it is independent.

Step-by-step explanation:

Given the system of equations

$\begin{bmatrix}2x-y=-4\\ 3x+y=-1\end{bmatrix}$

$\mathrm{Multiply\:}2x-y=-4\mathrm{\:by\:}3\:\mathrm{:}\:\quad \:6x-3y=-12$

$\mathrm{Multiply\:}3x+y=-1\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:6x+2y=-2$

$\begin{bmatrix}6x-3y=-12\\ 6x+2y=-2\end{bmatrix}$

$6x+2y=-2$

$-$

$\underline{6x-3y=-12}$

$5y=10$

so the system of equations becomes

$\begin{bmatrix}6x-3y=-12\\ 5y=10\end{bmatrix}$

solving 5y = 10 for y

$5y=10$

Divide both sides by 5

$\frac{5y}{5}=\frac{10}{5}$

simplify

$y=2$

$\mathrm{For\:}6x-3y=-12\mathrm{\:plug\:in\:}y=2$

$6x-3\cdot \:2=-12$

$6x-6=-12$

Adding 6 to both sides

$6x-6+6=-12+6$

$6x=-6$

Divide both sides by 6

$\frac{6x}{6}=\frac{-6}{6}$

$x=-1$

Therefore, the solution to the system of equations be:

$x=-1,\:y=2$

From the above calculations, it is clear that the consistent system has exactly one solution i.e. x = -1, y =2, therefore, it is independent.

6 0

3 years ago

177 ×44 Please hurry but take your time

evablogger [386]

Answer:

7788

Step-by-step explanation:

177 x 44 is 7788

3 0

3 years ago

Read 2 more answers