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3 years ago

3, 2.7 - 3, 1.4 (these are numbers on a x,y graph.)

Mathematics

1 answer:

Serggg [28]3 years ago

6 0

I would help but you don’t have graph:(

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A certain pizza parlor has 7 different toppings. How many two- topping pizzas are possible?

Elina [12.6K]

Answer:

jnrdmsx,

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Consider a population list x, with a CV= 10%. A second population list, y, has a CV= 20%. The linear regression of y on x is y =

ch4aika [34]

Answer:

The correlation coefficient 0.5 depicts that there is moderate positive correlation between y and x.

Step-by-step explanation:

The linear regression equation is

y= a+bx

The given linear equation is

y= 10x

Here, slope=b=10 and intercept=a=0.

From above equation,

ybar=10xbar

We are given that CVx=0.1 and CVy=0.2

where CV=(standard deviation/mean)*100

We know that

b=r(Sy/Sx)

Multiplying by xbar/ybar on both sides

(xbar/ybar)b=r(Sy/Sx)(xbar/ybar)

(xbar/ybar)b=r[(Sy/ybar)/(Sx/xbar))]

(xbar/ybar)b=r[CVy/CVx]

As CVy/CVx=(Sy/ybar)*100/(Sx/xbar)*100=(Sy/ybar)/(Sx/xbar).

By putting ybar=10xbar, b=10, CVx=0.1 and CVy=0.2.

(xbar/10xbar)10=r(0.2/0.1)

1=r(0.2/0.1)

1=r(2)

r=0.5

There is moderate positive correlation between y and x.

6 0

2 years ago

Two and four tenths times a number minus three is greater than one and six tenths times the number minus four and one tenth

diamong [38]

Let's first turn all the words into numbers:

Two and four tenths = 2.4

One and six tenths = 1.6

Four and one tenth = 4.1

Now lets represent "a number" as x.

Then translate the wording into a linear equation:

$2.4x-3>1.6x-4.1$

Simplify and isolate the variable:

$0.8x>-1.1$

Divide by 0.8

x>1.375 or x>1 3/8

8 0

3 years ago

What’s the answer....

ICE Princess25 [194]

Answer:

Step-by-step explanation:

If the triangles are similar, then the corresponding sides are in proportion:

$\dfrac{20}{20+8}=\dfrac{3x}{4x+2}$

$\dfrac{20}{28}=\dfrac{3x}{4x+2}$

$\dfrac{20:4}{28:4}=\dfrac{3x}{4x+2}$

$\dfrac{5}{7}=\dfrac{3x}{4x+2}$ cross multiply

$5(4x+2)=(7)(3x)$ use distributive property a(b + c) = ab + ac

$(5)(4x)+(5)(2)=21x$

$20x+10=21x$ subtract 20x from both sides

$10=1x\to x=10$

3 0

3 years ago

The compound interest on the account with .01% interest rate in 5 years

Alina [70]

Answer:

The interest generated will be $ 51.20.

Step-by-step explanation:

To determine the compound interest on the account with 0.01% interest rate in 5 years compounded quarterly with an initial deposit of $ 1,000, the following calculation must be performed:

1,000 x (1 + 0.01 / 4) ^ 4x5 = X

1,000 x (1 + 0.0025) ^ 20 = X

1,000 x 1.0025 ^ 20 = X

1,000 x 1.05120 = X

1,051.20 = X

1,051.20 - 1,000 = 51.20

Therefore, the interest generated will be $ 51.20.

7 0

2 years ago