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3 years ago

Whats the answer? please reply quickly.

Mathematics

1 answer:

evablogger [386]3 years ago

7 0

Answer:

2 1/3 cups of flour for every dozen muffins

Step-by-step explanation:

1 1/2 dozen muffins equals 3 1/2 cups of flour which is also the same as 7/2 cups of flour. I know that (3) 1/2 dozen equals 1 1/2 dozen so I divided 7/2 by 3 which is 1 1/6 to get how much flour for 1/2 dozen then multiplied it by 2 to get how much flour in a dozen = 2 2/6 which simplified is 2 1/3.

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the first term of an arthimetic sequence is 42 the rule an= an-1 +8 can 1 can be used explain how to write explict rules

Svet_ta [14]

Answer:

34 + 8n

Step-by-step explanation:

a₁ = 42

$a_{n} = a_{n-1} + 8$

a₂ = a₁ + 8 = 42 + 8 = 50

a₃ = a₂ + 8 = 50 + 8 = 58

a₄ = a₃ + 8 = 58 + 8 = 66

Arithmetic sequence: 42, 50 , 58 , 66, ......

a₁ = 42 ; d = 8

$a_{n}$ = a₁ + d(n-1)

= 42 + 8(n - 1)

= 42 + 8n - 8

= 34 + 8n

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3 years ago

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diamong [38]

Answer:

Yes.

Step-by-step explanation:

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stellarik [79]

Answer:

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Step-by-step explanation:

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3 years ago

the diameter of a cylinder is 14cm.the height of the cylinder is 9cm. calculate the Volume and curved surface area

kicyunya [14]

Answer:

The volume is 1386 cm³ and curved surface area is 396 cm².

Step-by-step explanation:

Given that,

The diameter of a cylinder is 14 cm

Height of the cylinder is 9 cm

We need to find the volume and curved surface area .

If r is the radius, r = 14/2 = 7 cm

Volume of a cylinder is given by :

$V=\pi r^2 h\\\\V=\dfrac{22}{7}\times (7)^2 \times 9\\\\V=1386\ \text{cm}^3$

The curved surface area of the cylinder is given by :

$A=2\pi r h\\\\A=2\times \dfrac{22}{7}\times 7\times 9\\\\A=396\ \text{cm}^2$

So, the volume is 1386 cm³ and curved surface area is 396 cm².

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3 years ago

Please help me answer this question! It’s in the picture!

Dafna11 [192]

Step-by-step explanation:

We can prove this by using similar triangles. We know that angle ABE and ACD are SIMILAR(we know that by the sign in between them).Therefore, we also know that CDA and BEA are similar, and EAB and DAC are similar. Since all the angles are similar, we also know that the side lengths are equal in proportion. AB/AE is equal to AC/AD. When assigned values, that would create a proportion that is equal since the smaller triangle is similar to the bigger one. If you want to create a proof, break each statement into its own section.

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3 years ago