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2 years ago

14

A total of 14 guest attended a birthday party. Three friends stayed after the party to help clean up. How many left when the par

t ended.

1 answer:

hram777 [196]2 years ago

6 0

Answer:

The answer is 11 guest.

Step-by-step explanation:

14 - 3 = 11 guest

Can I please have a Brainliest??

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What is the domain of the function shown in the graph below?

cricket20 [7]

Answer: interval from -8 to 5

In interval notation, we would write [-8, 5]

The domain is the set of allowed x inputs to a function. The left-most point is (-8,0) so x = -8 is the smallest x value allowed. The largest x value allowed is x = 5 due to the point (5,0) being the right-most point.

The use of square brackets in interval notation says "include this endpoint as part of the interval".

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3 years ago

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HURRY!!!! I NEED HELP RIGHT NOW!!! THIS IS TO ALL OF THOSE MATH WIZARDS OUT THERE!!

iren [92.7K]

Answer:

−9.333

Step-by-step explanation:

(1): "6.75" was replaced by "(675/100)"

(675/100)+3/8*x-((13)*1/4)=0

Simplify 1/4

675 3 1

(———+(—•x))-(13•—) = 0

100 8 4

3

Simplify —

8

Equation at the end of step

2

:

675 3 13

(——— + (— • x)) - —— = 0

100 8 4

STEP

3

:

27

Simplify ——

4

Equation at the end of step

3

:

27 3x 13

(—— + ——) - —— = 0

4 8 4

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3 years ago

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In the equation (x^2+y)^5, what is the coefficient of the term x^4y^3? what is the coefficient of the same term in the expansion

lys-0071 [83]

$\displaystyle
(x+y)^n=\sum_{k=0}^n\binom{n}{k}x^{n-k}y^k$

<em>-------------------------------------------------------------</em>

$\displaystyle
(x^2+y)^n=\sum_{k=0}^n\binom{n}{k}x^{2n-2k}y^k\\
n=5\\
k=3\\\\\binom{5}{3}=\dfrac{5!}{3!2!}=\dfrac{4\cdor5}{2}=10$

<u>It's 10.</u>

----------------------------------------------------

$\displaystyle
(3x^2+y)^n=\sum_{k=0}^n\binom{n}{k}(3x)^{2n-2k}y^k=\sum_{k=0}^n\binom{n}{k}\cdot 3^{2n-2k}\cdot x^{2n-2k}y^k\\\\
n=5\\
k=4\\\\
\binom{5}{3}\cdot3^{2\cdot5-2\cdot4}=10\cdot3^{2}=10\cdot9=90$

<u>It's 90</u>

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3 years ago

Area and volume math question pretty simple please help no explanation needed just answers

Svetlanka [38]

Solution ,

length = 4m

breadth = 1.2m

height = 0.3m

Now

Area = l × b

= 4m × 1.2 m

= 4.8m²

Now

Volume = l × b × h

= 4m × 1.2m × 0.3m

= 1.44 m³

~Prasuna090154~

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3 years ago

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Assuming a normal distribution, families spends an average of $500 on their monthly cell phone bills with a standard deviation o

lara [203]

The probability is 0.69.

We find the z-scores that correspond with each end of the range we're looking for. To find a z-score, we use the formula:
$z=\frac{X-\mu}{\sigma}
\\
\\=\frac{350-500}{75}=\frac{-150}{75}=-2$

$z=\frac{400-500}{75}=\frac{-100}{75}=-1.33$

Using a z-table (http://www.z-table.com) we see that the area under the curve left of the score 350 would be 0.228. The area under the curve left of the score 400 would be 0.918. To find just the range between 350 and 400, we subtract the area left of 350 from the area left of 400; this will give us just from 350 to 400:

0.918-0.228 = 0.69.

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3 years ago