Find the value of this expression if x = 6 and y = -1. xy² -5​

Answer:

Richard

Step-by-step explanation:

28 days=4 weeks

40 paintings in 4 weeks

45 paintings in 5 weeks

Richard weekly rate: 40/4=10 paintings per week

Nestor weekly rate: 45/5=9 paintings per week

If richard's rate is 10 while nestor's is 9, richard has a faster rate

Answer:

8x=55+73

8x=128

X=128/8

X=16

Step-by-step explanation:

check:

-73+8(16)=55

-73+128=55

55=55

I hope you understand

Answer:

(a) r = -0.947928522

(b) strong, negative

Step-by-step explanation:

The Product Moment Correlation Coefficient (r) measures the strength of the linear correlation between two variables.

The PMCC is always between +1 and -1.

The closer the value of r is to +1 or -1, the stronger the correlation between the two variables.

Inputting the data from the table into a calculator and using the statistical function:

r = -0.947928522

As the value of r is close to -1, the best description for the correlation would be strong, negative

Answer:

Scale factor = 4

If you multiply by 4 the two sides of ABCD, you will get the corresponding sides of A’B’C’D’

Answer:

3468 students

Step-by-step explanation:

289 x 12 = 3468

Answer:

75

Step-by-step explanation:

because the formula of finding the area of a triangle is base times height divided by 2 so thatshow you get the answer, multiply 10by15 and then divide by 2

Answer:

The answer would be 75 ft ^2

Step-by-step explanation:

Step 1. Do 15x10 (which equals 150)
Step 2. Divide by 2 to get the answer of 75
Step 3. Label to get 75 ft ^2

Answer:8/25

Step-by-step explanation: 4/25 ×2/1

Answer: hii

Exact form:

8/25

Decimal Form:

0.32

_____________________

Step-by-step explanation:

Simplify the expression.

Hopefully this helps you

- Matthew

Answer:

  4%

Step-by-step explanation:

The interest earned on the investment is the difference between the end-of-year value and the initial value:

  $83.20 -80 = $3.20 . . . . simple interest per year

__

The interest rate is the ratio of this to the initial investment:

  $3.20/$80.00 = 0.04 = 4% . . . . . simple interest rate per year

Answer:

n = 6

Rule: Times 3

Step-by-step explanation:

[tex]\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\dotfill &\$12000\\ P=\textit{initial amount}\dotfill &\$30000\\ r=rate\to 25\%\to \frac{25}{100}\dotfill &0.25\\ t=years\\ \end{cases}[/tex]

[tex]12000=30000(1 - 0.25)^{t}\implies \cfrac{12000}{30000}=(1 - 0.25)^{t}\implies \cfrac{2}{5}=0.75^t \\\\\\ \log\left( \cfrac{2}{5} \right)=\log(0.75^t)\implies \log\left( \cfrac{2}{5} \right)=t\log(0.75) \\\\\\ \cfrac{~~\log\left( \frac{2}{5} \right)~~}{\log(0.75)}=t\implies 3\approx t[/tex]

Answer:

is that 32 / 3 or 3^2/3 ...?

Step-by-step explanation:

if 32/3 and 51/7

then answer will be 1120/17

Answer:

i got 95 inches

Step-by-step explanation:

Step-by-step explanation:

9.5*10=95

Answer:

526.4

Step-by-step explanation:

560 - 6%

= 526.4 you will pay for the shirt

Answer:

Mean 27

Median 9

Mode 12, 2, 64, 0, 48, 4, 6, 80

Step-by-step explanation:

The thing which the fictional account of the epidemic includes that the nonfictional account does not is the c, dialogue between made up characters.

This refers to the narration about a set of events by an author that is not real or true but is a figment of the imagination of the writer.

Hence, we can see that from the complete text, there are the details of the given text to show the differences between the fictional and non-fictional accounts which was the c, dialogue between made-up characters.

Read more about George Washington here:
https://brainly.com/question/2409724

Answer:

h=6

Step-by-step explanation:

To find the volume of a right angle prism-

Find area of cross-section, in this case an isoscles triangle so we know that both of the parallel lines are 3ft

To find the area of the cross-section, do:

3 x 3 = 9

9 ÷ 2 = 4.5 (Area of cross-section)

Since we don't know the length of h, we need do:

27^3 ÷ 4.5 = 6

Therefore 6 is h

Hope I explained it okay:)

Answer:

A to C is [tex]37.51\ ft[/tex]

Step-by-step explanation:

We are given an angle and the base length. Recall:

[tex]tan(x) = \frac{opposite}{adjacent}[/tex]

Add the values:

[tex]tan(15) = \frac{x}{140}[/tex]

Solve for x:

[tex]tan(15) = \frac{x}{140}\\tan(15) * 140 = x\\37.51 = x[/tex]

Answer:

88

Step-by-step explanation:

PE M/D A/S

55/ (9-4) *8

9-4=5

55/5*8

11*8

88

Answer:

Step-by-step explanation:

Answer:

-2 square root 5

Step-by-step explanation:

Answer:

The Answer is C.

Step-by-step explanation:

f(x) = cos x , g(x) = cos(x - π/4)

Equation: f(x) = a * cos (x - h) + k

Since the equation only has h = π/4, it means that it shift right.

Answer:

31.5 in²

Step-by-step explanation:

The area of a triangle is calculated with the following formula:

1/2*b*h (b: base, h: height)

The height of this triangle is given as 9 and base is 7

1/2*7*9 = 31.5 in²

Answer:

31.5 in²

Step-by-step explanation:

Answer:

The price of a medium pizza with 3 toppings is $15.

Step-by-step explanation:

If "t" represents the number of toppings, you will use the expression "9+2t" and plug in 3 for t (since there are 3 toppings)

So it will look like:

9+2(3)

Then you're gonna use PEMDAS, multiply 2*3

9+6

And then you get an answer of $15

Hope this helps :))

Answer:

A, 3/7.

Step-by-step explanation:

There are 7 shapes overall shown. Since there are 3 triangles, we need to do 3/7.

Answer: 3/7

Step-by-step explanation:

Number of triangles / total number of shapes

Answer:

1320

Step-by-step explanation:

12 x 11 x 10 = 1,320

Answer:

1.D

2.B

3.F

4.E

5.A

6.C

Answer:

√99, 9.8 repeating, π2

Step-by-step explanation:

hope this helped!