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3 years ago

10

A modernistic painting consists of triangles rectangles and pentagons all drawn so as to not overlap or share sides within each

rectangle are drawn 5 red roses and each pentagon contains 4 camations How many triangles rectangles and pentagons appear in the painting iſ the painting contains a total of 38 geometric figures 148 sides of geometric figures, and 122 flowers? How many pentagons appear in the painting?

1 answer:

dolphi86 [110]3 years ago

8 0

Answer:

Hbfhsc

Step-by-step explanation:

Bsfbhsbhdf

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How many combinations of sunscreens are there based on the table.

topjm [15]

Answer:

40320 possible combinations

Step-by-step explanation:

Your table = 8!

8! = 8x7x6x5x4x3x2x1=40320

There are 8 factors in this

5 0

3 years ago

The latest poll from ESPN asked fans what their favorite sport was, considering pro, college and highschool levels. Out of 1000

shepuryov [24]

Answer:

Confidence interval is $0.2911$

Step-by-step explanation:

Given that 32% of fans sport is basketball as favorite sport. So total number of fans is,

$32\%\times 1000$

$= \dfrac{32}{100}\times 1000$

$=320$

So 320 fans favorite sport is basket ball.

Now find sample proportion ,

$\widehat{p}=\dfrac{number\:of\:people\:in\:the\:sample}{total\:number\:of\:people}$

Substituting the value,

$\widehat{p}=\dfrac{320}{1000}$

$\widehat{p}=0.320$

Formula for confidence interval is,

$CI=\widehat{p}\pm z\sqrt{\dfrac{\widehat{p}\left (1-\widehat{p}\right )}{n}}$

To calculate the z value.

$Confidence Level=1-\alpha$

$0.95=1-\alpha$

$0.05=\alpha$

Now divide above value by 2,

$\dfrac{0.05}{2}=\dfrac{\alpha}{2}$

$0.025=\dfrac{\alpha}{2}$

To find the value of z score calculate the area under the curve as follows

$A=\dfrac{1+CL}{2}$

$A=\dfrac{1+0.95}{2}$

$A=\dfrac{1.95}{2}$

$A=0.975$

On z table, find the value of 0.975. So the row corresponding to 0.975 is 1.9 and column corresponding to 0.975 is 0.06. Adding these two values the z score is 1.96.

or find the value from excel by using command as follows,

=NORM.S.INV(0.025)= -1.959963985

Now substituting the value,

$CI=0.320\pm 1.96\sqrt{\dfrac{0.320\left (1-0.320\right )}{1000}}$

$CI=0.320\pm 0.02891$

Lower end of the interval is,

$CI=0.320- 0.02891$

$CI=0.2911$

Upper end of the interval is,

$CI=0.320+ 0.02891$

$CI=0.3489$

Therefore 95% confidence interval is $0.2911$

7 0

3 years ago

-2 (3 x - 9 ) + 5x = 10

aleksandr82 [10.1K]

Answer: × = 8

Step-by-step explanation:

-2 (3 x - 9 ) + 5x = 10

Step 1: Open the bracket

-6× + 18 + 5x = 10

Step 2: Combine like terms

-6× + 5× = 10 -18

-1× = -8

×= -8/-1

×=8

7 0

4 years ago

Read 2 more answers

Round 5.264 to the nearest tenths

SIZIF [17.4K]

The 6 is the hundredths place so..

5 or above means to round up!

So 6 is bigger than 5.

Make the 2 into a 3 because that's what your rounding

Make everything else zeroes

Answer: 5.3

3 0

4 years ago

Read 2 more answers

Please please please help

scoundrel [369]

First option: p< -8 or p>5
-6+\left|2p+3\right|>7
-6+\left|2p+3\right|+6>7+6
\left|2p+3\right|>13
2p+3<-13\quad \quad \mathrm{or}\quad \:\quad \:2p+3>13
Combine:
p< -8 or p>5
Hope this helps!

3 0

3 years ago