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3 years ago

Please help me I don’t under stand helpppp ASAP

Mathematics

2 answers:

Mamont248 [21]3 years ago

8 0

Answer:

27.7

Step-by-step explanation:

bagirrra123 [75]3 years ago

3 0

Answer:

Step-by-step explanation:

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Find the area of a circle with radius, r = 52cm squared

luda_lava [24]

Answer: 849

Step-by-step explanation:

πr^2

π x 52^2 = 8494.866535

3 SF = 849

5 0

3 years ago

Evaluate using the trigonometric ratios Tan 60° + Cos 30° sin 60° + Cot 30° /CSC 30° Sec 30°<br>

algol13

Answer:

(24 + 3√3) / 16.

Step-by-step explanation:

Tan 60° + Cos 30° sin 60° + Cot 30 / csc 30 sec 30

= √3 + √3/2 * √3/2 + √3 / 2 * 2/√3

= 2√3 + 3/4 / 4/√3

= (8√3 + 3)/ 4 / √3

= 24 + 3√3 / 16

5 0

2 years ago

Grace sureyed 60 random students in her school.Of these 14 said they enjoy watching Dancing with the star.A total of 570 student

Amiraneli [1.4K]

I think it is 133 students that like Dancing with the stars

4 0

3 years ago

Which number is written in scientific notation? A. 6x10^11 B. 12x10^-8 C. 0.2x10^5 D. 8x7^2

Lesechka [4]

I think the correct answer is C. 0.2*10^5

8 0

3 years ago

Read 2 more answers

a. A student builds a simple circuit with a single resistor with resistance R and measures an electric potential difference ΔV a

GrogVix [38]

Answer:

The new current is half the original current.

Step-by-step explanation:

Ohm's Law:

We use Ohm's law to solve this question. It states that

$\Delta_V = RI$

In which $\Delta_V$ is the voltage difference, R is the resistence, and I is the current.

A student builds a simple circuit with a single resistor with resistance R and measures an electric potential difference ΔV across the resistor.

$\Delta_V = RI_{1}$

$I_{1} = \frac{\Delta_V}{R}{/tex]Then, the student replaces the resistor with a new one of resistance 2R and keeps the electric potential difference the same.Now the current will be[tex]\Delta_V = 2RI_{2}$

$I_{2} = \frac{\Delta_V}{2R} = \frac{1}{2}(\frac{\Delta_V}{R}) = \frac{1}{2}(I_1)$

The new current is half the original current.

7 0

3 years ago