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2 years ago

Round 146.56 to the nearest tenth.

2 answers:

7 0

146.6 is the answer I believe because the 5 is in the tenth place and so the six makes you round up. Any number above 4 you round up.

Georgia [21]2 years ago

3 0

146.6. Nearest tenth is one place after the decimal.

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What is the magnitude of -3 +4i?

Goshia [24]

Answer:

we have

-3+4i

let magnitude be |z|

|z|= $\sqrt{( - 3) {}^{2} + 4 {}^{2} }$

|z|=5 unit

6 0

2 years ago

WILL GIVE BRAINLIEST!!

sergeinik [125]

Answer: 5.196152423

Step-by-step explanation: Logically considering it's a Rhombus all the sides are equal to each other. So you just need to find the area. In this case you find the area by multiplying the sin of the given angle by the square root of the given side. So, 6²×sin (60)=6²×√3/2=31.17691454. After finding the area you then have to divide the area by it's base to find the height. So, 31.17691454 ÷ 6 = 5.196152423.

I didn't round any of the numbers. Hopefully this is correct.

Sorry about the messy diagrams (never been good at creating them) and how long it took.

4 0

2 years ago

Read 2 more answers

Someone help me with my math homework pleaseee. Find the volumes of the pyramids and the height is 7cm for the first one.

gregori [183]

$\bf \textit{volume of a pyramid}\\\\
V=\cfrac{1}{3}Bh\qquad 
\begin{cases}
B=\textit{area of the base}\\
h=height
\end{cases}$

now, the first one, on the far-left.... can't see the height.. but I gather you do, now as far as its Base area, well, the bottom is just a 12x12 square, so the area of its base is just 12*12

now, the middle pyramid, has a height of 6, the base is also a square, 8x8, so the Base area is just 8*8

now the last one on the far-right

has a height of 8, the Base is a Hexagon, with sides of 6

$\bf \textit{area of a regular polygon}\\\\
A=\cfrac{1}{4}ns^2cot\left( \frac{180}{n} \right)\qquad 
\begin{cases}
n=\textit{number of sides}\\
s=\textit{length of one side}\\
\frac{180}{n}=\textit{angle in degrees}\\
----------\\
n=6\\
s=6
\end{cases}\\\\\\ A=\cfrac{1}{4}\cdot 6\cdot 6^2\cdot cot\left( \frac{180}{6} \right)$

5 0

2 years ago

Please help me at this wit steps how did you did it

balu736 [363]

Answer:

5. LCM of 7 and 14: 14.

multiples of 7: 7, 14

multiples of 14: 14

LCM of 8 and 12: 24.

multiples of 8: 8, 16, 24

multiples of 12: 12, 24

Step-by-step explanation:

$.$

5 0

2 years ago

−24 = −0.6k can you slove this answer

Kruka [31]

Answer:

-24 = -0.6k

k=-24/-0.6

k=40

Let me know if this helps!

5 0

2 years ago