3 years ago

Y = 12 • 3x for x = –2

Mathematics

1 answer:

topjm [15]3 years ago

5 0

Answer:

y=-72

Step-by-step explanation:

3(-2) = -6, y=12 times -6, y= -72

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Step-by-step explanation:

3x3x3=3^3

3^3=27

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3 years ago

Part A )a painter leans a ladder up against a building. The base of the ladder is placed 7 feet from the building to reach a hei

Lana71 [14]

Answer:

Part A). 25 feet

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Step-by-step explanation:

Part A). By applying Pythagoras theorem in ΔABC,

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AC² = 576 + 49

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Part B). By applying Pythagoras theorem in ΔABC,

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3 years ago

Write 2.75 as a mixed number and as an improper fraction.<br> Write your answers in simplest form.

Stolb23 [73]

2 3/4 11/4 hope this helps

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3 years ago

Lisa knit 3/12 foot of a scarf on Saturday. She knit 8/12 foot of a scarf on Sunday.

Vesna [10]

Answer:

C - 5/12 of a foot

Step-by-step explanation:

Subtract the numerators from 8/12 - 3/12 - keeping the denominator

8 - 3 = 5

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3 years ago

If observed frequencies are 5,10,15 and expected frequencies are each equal to 10 then chi square value is

lina2011 [118]

Answer:

Step-by-step explanation:

Given :

Observed values = 5, 10, 15

Expected freqencies = 10

χ² = Σ(observed - Expected)² / Expected

χ² = (5-10)²/10 + (10-10)²/10 + (15-10)²/10

χ² = 25/10 + 0/10 + 25/10

χ² = 2.5 + 0 + 2.5

χ² = 5

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3 years ago