3 years ago

A Student writes "the sum of 7 times a number n plus 5"to describe the expression 7(n+5) explain the error

1 answer:

6 0

7(N) + 5 It's 7 times a number first, then add 5

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gogolik [260]

Answer:

98 π R

Step-by-step explanation:

Surface area of sphere = 4 π R²

= 2 π R × 2 R

= 49 π × 2 R

= 98 π R

3 0

3 years ago

ira [324]

$\bf y=8ln[sin(t+9)]\\\\
-----------------------------\\\\
\cfrac{dy}{dx}=8\cdot \cfrac{cos(t+9)\cdot 1}{sin(t+9)}\implies \cfrac{dy}{dx}=8cot(t+9)$

6 0

3 years ago

ivanzaharov [21]

$\log_b \left(\dfrac 1{b^{-b}}\right)\\\\=\log_b (b^{-b})^{-1}\\\\=\log_b b^b\\\\=b \log_b b\\\\=b \cdot 1\\\\=b$

3 0

2 years ago

asambeis [7]

Multiply 1 4/5 by 5
9/5 * 5/1 = 45/5 = 9 miles

8 0

3 years ago

Svetlanka [38]

Answer: one whole

Step-by-step explanation:

8/8 = one whole

3 0

3 years ago