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3 years ago

Can someone please help me with this? help would be very much appreciated!

Mathematics

2 answers:

alexandr1967 [171]3 years ago

7 0

Answer:

so sorry i dont know

:(eeeeeeeeeeee

eeeeeeeStep-by-step explanation:

balu736 [363]3 years ago

6 0

9 I think cs I did it and it was right

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10 points. y = a(x-h)^2 + k

Advocard [28]

Answer:

Option A $\textbf{a}=\frac{\textbf{y-k}}{(\textbf{x-h})^2}$

Step-by-step explanation:

Verification: The given equation is

$y=a(x-h)^2+k$

$y-k=a(x-h)^2$

$\frac{y-k}{(x-h)^2}=a$

which may be written as

$a=\frac{y-k}{(x-h)^2}$

4 0

3 years ago

HELPPPPPPPPPPPPPpppp

Dafna1 [17]

8.722 / (-3.56)

Expand $\frac{8.722}{-3.56}$ by multiplying both numerator and denominator by 1000.

$\frac{8722}{-3560}$

Reduce the fraction $\frac{8722}{-3560}$ to the lowest terms by extracting and cancelling out 178.

- $\frac {49}{20}$ = -2.45

3 0

3 years ago

Jakobe runs a coffee cart where he sells coffee for $1.50 tea for $2 , and donuts for $0.75 . On Monday, he sold 320 items and m

Andreyy89

Jakobe sold 150 coffee, 50 tea and 120 donuts at the coffee cart on Monday.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let x represent the amount of coffee, y represent the amount of tea and z represent the amount of donuts, hence:

x + y + z = 320 (1)

Also:

1.5x + 2y + 0.75z = 415 (2)

And:

x = 3y (3)

From the equations:

x = 150, y= 50 and z = 120

Jakobe sold 150 coffee, 50 tea and 120 donuts at the coffee cart on Monday.

Find out more on equation at: brainly.com/question/2972832

#SPJ1

6 0

2 years ago

Find the directional derivative of the function at the given point in the direction of the vector v. f(x, y, z) = xyz , (3, 3, 9

Anna [14]

The derivative of $f(x,y,z)$ in the direction of a vector $\mathbf u$ is

$\nabla_{\mathbf u}f=\nabla f\cdot\dfrac{\mathbf u}{\|\mathbf u\|}$

With $f(x,y,z)=xyz$ , we get

$\nabla f=(yz,xz,xy)$

and $\mathbf u=(-1,-2,2)$ ,

$\|\mathbf u\|=\sqrt{(-1)^2+(-2)^2+2^2}=3$

Then

$\nabla_{(-1,-2,2)}f(3,3,9)=(27,27,9)\cdot\dfrac{(-1,-2,2)}3=-21$

8 0

3 years ago

B² - 4ac also known as

Musya8 [376]

Answer:

-143

Step-by-step explanation:

(I THINK)

3 0

3 years ago