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2 years ago

What shape is this? i have a test, i need answers rn

Mathematics

2 answers:

OLga [1]2 years ago

8 0

Answer:

Square pyramaid!! I hope this helped u!! :)

Step-by-step explanation:

anyanavicka [17]2 years ago

6 0

Square pyramaid! That is the anwser

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A Chueca has 20 plates if theres 30 people how much does she need more

ludmilkaskok [199]

She needs 10 more plates to get 30

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2 years ago

Which point satisfies the system of equations y = 3x − 2 and y = -2x + 3?

Sedbober [7]

Answer:

(1,1)

Step-by-step explanation:

The choices are not visible, however are unnecessary to solve this problem.

Given y = 3x - 2 and y = -2x + 3

[Set them equal to each other]

3x - 2 = -2x + 3

[Find x]

3x + 2x - 2 = 3

3x + 2x = 5

5x = 5

x = 1

[Plug x = 1 to both equations to check and find y]

y = 3x - 2

y = 3(1) - 2 = 3 - 2 = 1

y = -2x + 3

y = -2(1) + 3 = -2 + 3 = 1

Both are equal to y = 1 when x = 1

The point is then: (1,1)

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2 years ago

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Solve for x. 3.8 + 4.5x - 1.4 = 8.25

pantera1 [17]

I think it’s 1.3, if it’s not than I’m so sorry

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2 years ago

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Search one of the four sports provided (or find information about a different sport, if desired) to find connections between the

docker41 [41]

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2 years ago

Use the chain rule calculate dw/dr , dw/ds and dw/dt

Liono4ka [1.6K]

Answer:

$\frac{dw}{dr} = \frac{8\cdot r}{4\cdot r^{2}-t^{2}+5\cdot s^{2}}$ , $\frac{dw}{ds} = \frac{10\cdot s}{4\cdot r^{2}-t^{2}+5\cdot s^{2}}$ , $\frac{dw}{dt} = -\frac{2\cdot t}{4\cdot r^{2}-t^{2}+5\cdot s^{2}}$

Step-by-step explanation:

We proceed to derive each expression by rule of chain. Let be $w = \ln (x+2\cdot y + 3\cdot z)$ , $x = r^{2}+t^{2}$ , $y = s^{2}-t^{2}$ and $z = r^{2}+s^{2}$ :