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3 years ago

Pls, help!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

adoni [48]3 years ago

6 0

Answer:

$y^{19}$ ! Please read explanation!

Step-by-step explanation:

Hello!

When there are 2 variables that are the same (in this case y), you add the exponents! In this case, we have $y^{5}$ and $y^{14}$ , and since 5 and 14 are the exponents, we add them! 5+14 is 19, so the answer is $y^{19}$ !

I hope this makes sense! If you liked my answer, please give it a rating and a Thanks would be nice, too!

Have a great day!

Alenkinab [10]3 years ago

4 0

Y^19 or C because the multiplication power rule states you add both powers and that’s your ansewer! Hope this helps!

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The average of four numbers is 38, and the average of the first two numbers is 42, and the average of the last three numbers is

diamong [38]

Answer:

Step-by-step explanation:

let the numbers be a+b+c+d.

the average of 4 numbers is 38

; (a+b+c+d)/4 = 38

(a+b+c+d) = 152 ......equ1

the average of the first two numbers is 42

; (a+b)/2 = 42

(a+b) = 84 ...... equ2

the average of the last three numbers is 36

; (b+c+d)/3 = 36

(b+c+d) = 108 .....equ3

substitute equ3 into equ1

a + 108 = 152

a= 152 - 108

a = 44

input the value of a into equ2

44 + b = 84

b = 40

the second number is 40.

I hope this helps.

3 0

4 years ago

June and Stella can each create six floral arrangements in one hour. If they take in 372 Valentineâs Day orders, how many hours

sesenic [268]

Answer:

31 hours

Step-by-step explanation:

June and Stella can create 6 floral arrangements in one hour.

They take in 372 Valentine's Day order

No of hours = orders / (June's rate + Stella's rate)

June's rate = 6 arrangements / hour

Stella's rate = 6 arrangements / hour

June's rate + Stella's rate = 2(6 arrangements /hour)

= 12 arrangements / hour

No of hours = 372 arrangements / 12 arrangements / hour

= 31 hours

June and Stella have 31 hours to fulfill the 372 Valentine's Day order

8 0

3 years ago

What is 7 1/2 inches as a decimal of 1 foot

enyata [817]

Answer:

7 1/2 inches as a decimal of 1 foot is 0.625ft

6 0

3 years ago

Read 2 more answers

Please help me i’d really appreciate it so much. have a good day

vfiekz [6]

Answer:

i did my calculations and according to my calculations it is B

3 0

3 years ago

PLZ HELP, 20 pts and brainliest awarded, plz ASAP!!!!!! see image below

Amiraneli [1.4K]

Answer:

Option B

Step-by-step explanation:

we have

$f(x)=x^{3}-x^{2}-9x+9$

we know that

The vertical line test is a visual way to determine if a curve is a function or not. A function can only have one value of y for each unique value of x

In this problem

The given function passes the vertical line test

therefore

f(x) is a function

The Horizontal Line Test is a test use to determine if a function is one-to-one

If a horizontal line intersects a function's graph more than once, then the function is not one-to-one.

In this problem

The given function fails the horizontal line test

because for f(x)=0 x=-3, x=-1, x=3

therefore

It is no a one-to-one function

8 0

4 years ago