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stepladder [879]
3 years ago
15

Find the surface area of a square pyramid where the length of a side of the base is 10cm and the slant height of the pyramind is

16cm
Mathematics
1 answer:
vfiekz [6]3 years ago
4 0

Answer:

435.26

Step-by-step explanation:

I hope this is right I looked it up on Google. You search up area of a square pyramid and put your info in.

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Jose receives a $10 gift card for downloading music and wants to determine how many songs he can purchase. Each downloaded song
kvasek [131]

With the $10 gift card, Jose can buy at most 8 songs

x(the number of songs) less than or equal to 8

7 0
2 years ago
Read 2 more answers
A researcher obtained M = 27 for a sample of n = 36 scores selected from a population with µ = 30 and σ = 18. This sample mean c
dusya [7]

Answer:

True

Step-by-step explanation:

Given that:

M = 27, sample of n = 36 scores, µ = 30 and σ = 18.

The z score is used in statistics to determine by how many standard deviations the raw score is above or below the mean. If the z score is positive, the raw score is greater than the mean and if the z score is negative the raw score is less than the mean. The z score is given as:

z=\frac{x-\mu}{\sigma}

Given that M = 27, this means that x = 27. Therefore:

z=\frac{x-\mu}{\sigma}\\\\for \ a\ sample\ size(n):z=\frac{x-\mu}{\sigma/\sqrt{n} }\\\\z=\frac{27-30}{18/\sqrt{36} } =\frac{-3}{3}=-1

This sample mean corresponds to a z-score of z = –1.00.

7 0
3 years ago
Sin^22x - 2cos2x + 2=0
zhuklara [117]

Answer:

x=πn, n∈Z

Step-by-step explanation:

if sin²2x=1-cos²2x, then

1-cos²2x-2cos2x+2=0; ⇒ cos²2x+2cos2x-3=0; ⇔ (cos2x+3)(cos2x-1)=0;

\left[\begin{array}{cc}cos2x+3=0\\cos2x-1=0\\\end{array} \  \ \left[\begin{array}{cc}x \ 'does-not-exist'\\cos2x=1\\\end{array} \  \ 2x=2\pi n, n=Z \  x=\pi n, n=Z

5 0
2 years ago
HELP FAST PLEASE! ILL GIVE 20 POINTS PLUS BRAINLIEST!!!!
pav-90 [236]

Answer:

  see below

Step-by-step explanation:

The recursive function tells you the first term is 1. That is the meaning of ...

  a_1=1

It also tells you that to find the next term, you multiply this term by 1/2:

  a_2=\dfrac{1}{2}a_1=\dfrac{1}{2}\cdot 1=\dfrac{1}{2}

And, to find the next term, you multiply this term by 1/2:

  a_3=\dfrac{1}{2}a_2=\dfrac{1}{2}\cdot\dfrac{1}{2}=\dfrac{1}{4}

Then the first three terms are ...

  1, 1/2, 1/4

4 0
3 years ago
Y= 1/2x + 2 <br> Select points on the graph
Cloud [144]

Step-by-step explanation:

—x intercept, y = 0

y = 1/2 x + 2

0 = 1/2 x + 2

-2 = 1/2 x

-2.2 = x

-4 = x

X intercept = (-4 , 0)

—y intercept, x = 0

y = 1/2 x + 2

y = 1/2 . 0 + 2

y = 0 + 2

y = 2

Y intercept = (0 , 2)

Graph in the picture :)

8 0
2 years ago
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