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2 years ago

14

a magnifying glass makes objects appear 2.54 times largers than their actual size. How large does a 6-millimeter seed appear in

the magnifying glass

2 answers:

Mnenie [13.5K]2 years ago

7 0

Answer:

15.24 millimeters

Step-by-step explanation:

6 * 2.54 = 15.24 mm.

miss Akunina [59]2 years ago

5 0

Answer: should be 15.24

Step-by-step explanation: quick maths

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Can someone help me please

Novay_Z [31]

Answer:

B. x = -5 +/- √30.

Step-by-step explanation:

2x^2 + 20x = 10

2(x^2 + 10x) = 10

2[ (x + 5)^2 - 25 ] =10

2(x + 5)^2 - 50 = 10

2(x + 5)^2 = 60

(x + 5)^2 = 30

x + 5 = +/- √30

x = -5 +/- √30.

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3 years ago

How many pairs of whole numbers have a sum of 40

Ahat [919]

It is 20
39+1
38+2
37+3
36+4
35+5
<span>Until you get to 20+20</span>

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3 years ago

CosA + cosB + cosC = 1 + 4sinA/2 sinB/2 sinC/2

bulgar [2K]

$\cos(A) + \cos( B ) + \cos(C) \\ = 2 \cos( \frac{A + B}{2} ) \cos( \frac{ A- B}{2} ) + 1 - 2 { \sin }^{2} \frac{C}{2} \\ = 1 + 2\cos( \frac{\pi - C}{2} ) \cos( \frac{A - B}{2} ) - 2 { \sin }^{2} \frac{C}{2} \\ = 1 + 2 \sin \frac{C}{2} \cos( \frac{A - B}{2} ) - 2 { \sin }^{2} \frac{C}{2} \\ = 1 + 2 \sin \frac{C}{2} [ \cos( \frac{A - B}{2} ) - \sin \frac{C}{2}] \\ = 1 + 2 \sin \frac{C}{2} [ \cos( \frac{A - B}{2} ) - \cos( \frac{A + B}{2} )] \\ = 1 + 2 \sin\frac{C}{2} \times 2 \sin( \frac{ \frac{A + B}{2} +\frac{A - B}{2} }{2} ) \sin( \frac{ \frac{A + B}{2} - \frac{A - B}{2} }{2} ) \\ = 1 + 4 \sin \frac{A}{2} \sin \frac{B}{2} \sin \frac{C}{2}$

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3 years ago

Wittaler [7]

About around 20 cupcakes

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3 years ago

Depending on the car and the additional features, a convertible sports car can cost between $19,028 and $370,790. Write two ineq

liraira [26]

Cost of Car= C

$19,028 <span>≥</span><span> C ≤ $370,790
</span>
The cost of the sports car is greater than or equal to $19, 028 and less than or equal to $370,790.

6 0

3 years ago