2 years ago

Helpppppppppp!!!!! someone help me!!

Mathematics

1 answer:

lord [1]2 years ago

7 0

Answer:

why? Are you dying?

Step-by-step explanation:

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Calculate the length of the circumference of a circle with diameter of 7cm

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The circumference of the circle is given by the equation C = pi * D. Incorporating the length of the diameter into the equation, we have,

C = pi * D

C = pi * 7cm

C = 21.99 cm

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3 years ago

Rewrite in radical form (-243)2/5

nadezda [96]

Answer:

243 and 2 over 5

Multiply

(−243) and 2 over 5 . −486 over 5.

Move the negative in front of the fraction.

−486 over 5

Exact Form:

-486 over 5

Decimal Form:

-97.2

Mixed Number Form:

-97 and 1 over 5

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2 years ago

10. A bin of books at a bookstore had a 60% markdown off the original price and also offered a 35% coupon to the first 200 custo

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Answer:

300%

Step-by-step explanation:

bc i know

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3 years ago

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Graphically, a point is a solution to a system of two inequalities if and only if the point

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Answer:

it is c

Step-by-step explanation:

top is correct

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2 years ago

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Maggie needs to spend at least six hours each week practicing the piano. She has already practiced three and one fourth hours th

vfiekz [6]

Answer:

three and one fourth + 2x ≥ 6

Step-by-step explanation:

Let

x -----> the minimum number of hours he needs to practice on each of the two days

we know that

needs to spend at least seven hours each week practicing the drums

$3\frac{1}{4}+2x\geq 6\ hours$

Convert mixed number to an improper fraction

$3\frac{1}{4}\ hours=\frac{3*4+1}{4}=\frac{13}{4}\ hours$

substitute

$\frac{13}{4}+2x\geq 6\ hours$

Subtract 13/4 both sides

$2x\geq 6-\frac{13}{4}$

$2x\geq \frac{11}{4}$

Divide by 2 both sides

$x\geq \frac{11}{8}$

therefore

The minimum number of hours he needs to practice on each of the two days is $\frac{11}{8}\ hours$

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3 years ago