3.7 + 9f =49.6 what is the valve of f

Answer:

x = -7, y = -1

Step-by-step explanation:

Solve the following system:

{3 y - 2 x = 11 | (equation 1)

2 y + 3 x = -23 | (equation 2)

Swap equation 1 with equation 2:

{3 x + 2 y = -23 | (equation 1)

-(2 x) + 3 y = 11 | (equation 2)

Add 2/3 × (equation 1) to equation 2:

{3 x + 2 y = -23 | (equation 1)

0 x+(13 y)/3 = -13/3 | (equation 2)

Multiply equation 2 by 3/13:

{3 x + 2 y = -23 | (equation 1)

0 x+y = -1 | (equation 2)

Subtract 2 × (equation 2) from equation 1:

{3 x+0 y = -21 | (equation 1)

0 x+y = -1 | (equation 2)

Divide equation 1 by 3:

{x+0 y = -7 | (equation 1)

0 x+y = -1 | (equation 2)

Collect results:

Answer: x = -7, y = -1

Answer:

1861.39 cm²

Step-by-step explanation:

Given:

d = 15 cm

radius (r) = ½(15) = 7.5 cm

Height = 32 cm

Surface area of a cylinder = 2πrh + 2πr²

Plug in the values

Surface area = 2*π*7.5*32 + 2*π*7.5²

= 1861.39 cm²

Answer:

If the length and width are 8 and 12 than the area is 96. (D)

Step-by-step explanation:

Area is length x width.

12 x 8 = 96

Therefore, the area is 96.0 inches.

Answer:

0.32851 Kilometers i think

Step-by-step explanation:

Answer:

10% probability that contestant knew the answer rather than guessed it

Step-by-step explanation:

Since it is estimated that 10% of the general population know the correct answer to this question, for each contestant, there is a 10% probability that he knew the answer rather than guessing.

So the answer is 10% probability that contestant knew the answer rather than guessed it

Answer:

She probably wants attention from you maybe compliment her outfit or something like that.

9514 1404 393

Answer:

  100.5 ft²

Step-by-step explanation:

The surface area of the cylinder is given by the formula ...

  SA = 2πr(r +h) . . . . for radius r and height h

Using the given numbers, we find the area to be ...

  SA = 2(3.14)(2 ft)(2 ft +6 ft) = 32(3.14) ft² ≈ 100.5 ft²

The surface area of the cylinder is about 100.5 square feet.

Answer:

[tex]x = 10[/tex] will make the equation true

Step-by-step explanation:

Given

[tex]\{3,10,90,108\}[/tex]

[tex]3x +3= 33[/tex]

Required

Which is true for x

We have:

[tex]3x +3= 33[/tex]

Collect like terms

[tex]3x= 33 - 3[/tex]

[tex]3x= 30[/tex]

Solve for x

[tex]x = 30/3[/tex]

[tex]x = 10[/tex]

Answer:

the monthly rents of the apartments

Step-by-step explanation:

In the field of statistics, the population of interest may be defined as the group or the population from which the experimenter or the researcher tries to make conclusions or draw their results.

In the context, I am interested to study the cost of the rented house that is more than others in the West Campus area.

So I recorded the monthly rents of the apartments from a sample of 30 one bedroom apartments.

Therefore, the population of interest for my study here is the monthly rents recorded from the sample of one bedroom apartments.

Step-by-step explanation:

here is the answer click the photo

Answer:

Angle 1 = 35

Angle 2 = 30

Answer B

Step-by-step explanation:

Angle 1)

You know the total angles in a triangle are 180

You also know that the angle across from 1, next to 115 has to be 180-115 (65) or , this gives you

180-80-(180-115)= 35

Angle 2 )

You know the total angles in a triangle are 180

You also know that the angle across from 85, next to 115 is the same value 65 as it was for the calculation of angle 1.

so this means

180-85-65 = 30

the supply changing when x=20 is 40

Answer: A

Step-by-step explanation:

Step-by-step explanation:

First u have to do the work of bracket and the solve

Answer: (x+2)(2x-8)

if you let x = 1 it give h(x) = -18

Answer:

The first option

Step-by-step explanation:

Order of operations says that you raise everything in the parentheses to the third power as the 1st step.

2m^5^3 = 8m^5*3 = 8m^15

n^4^3 = n^4*3 = n^12

They are multiplied in the original equation, so multiply those and you get 8m^15n^12

Answer:

5

Step-by-step explanation:

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Answer:

Area of rectangle = 10 units²

Area of triangle = 10 units²

Area of figure = 20 units²

Step-by-step explanation:

Answer:

b. about 9.4 days

Step-by-step explanation:

Amount of the compound:

The amount of the compound after t days is given by the following equation:

[tex]y(t) = ae^{-0.0736t}[/tex]

The initial amount is:

[tex]y(0) = a[/tex]

Half-life:

t for which [tex]y(t) = 0.5a[/tex]. So

[tex]y(t) = ae^{-0.0736t}[/tex]

[tex]0.5a = ae^{-0.0736t}[/tex]

[tex]e^{-0.0736t} = 0.5[/tex]

[tex]\ln{e^{-0.0736t}} = \ln{0.5}[/tex]

[tex]-0.0736t = \ln{0.5}[/tex]

[tex]t = -\frac{\ln{0.5}}{0.0736}[/tex]

[tex]t = 9.42[/tex]

So about 9.4 days, and the answer is given by option b.

Answer:

3⁰ peach day means 3×10=30+20=50⁰C

Answer:

315 cubic inches

Step-by-step explanation:

To calculate the volume you multiply all the numbers together.

9 × 7 × 5 = 315

The volume of the rectangular prism is 315 cubic inches

Have a wonderful day! :D

Answer:6.49

Step-by-step explanation:Discount = Original Price x Discount %/100

Discount = 25.95 × 25/100

Discount = 25.95 x 0.25

You save = $6.49

Answer:

(2x10)=40

Step-by-step explanation:

Answer:

Thus the required Pythagorean triplet is 14,48,50. ∴ The required Pythagorean triplet is 16,63,65.

Step-by-step explanation:

Answer:

0.156

Step-by-step explanation:

Given that :

% of Explained variance by certain predictors of first year college grade :

SAT 11 scores = 17%

GPA = 15.6%

SAT 1 = 13.3%

Fitting a least squares line :

y = First year college GPA

x = high school GPA

THE r² value which is Coefficient of determination is the percentage of explained variance given by the regression line. The r² value of GPA will the as given above 15.6%

r² = 15.6% = 15.6/100 = 0.156

Answer:

ASA

Step-by-step explanation:

They are congruent by the ASA congruency.

Answer: E. $4,069.69

Step-by-step explanation:

For individuals who have an income that's between $9,526 to $38,700, their tax rate is 12%.

Therefore, since Daniel's taxable income is $33,914. According to the single taxable income tax brackets for 2018, the amount of income tax that Daniel owes will be:

= 12% × $33,914

= 12/100 × $33,914

= 0.12 × $33,914

= $4,069.69

Answer: D)$3,879.18

Step-by-step explanation:

Teacher told me

9514 1404 393

Answer:

  16

Step-by-step explanation:

The altitude of the triangle is 12/21 = 4/7 of the marked side. If we assume that the marked sides are the ones that are corresponding, then ...

  x = (4/7)(28)

  x = 16

Answer:

Is this the full question?

Hi ^^

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

A recipe calls for 3/4 cup of sugar and 2/3 cup of butter, so the sugar to butter ratio is  (3/4)/(2/3) = (3/4)(3/2) = 9/8.  This ratio implies that 1 cup of butter requires 9/8 cups of sugar.

 Since you use 1½ = 3/2 cups of butter, you will need

(3/2)(9/8) = 27/16 cups of sugar.

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anyways hope that helped, bye! <3

Answer:

C

Step-by-step explanation:

When the expression has an equal sign there is only one solution

6x = 150

* divide each side by 6 *

6x / 6 = x

150 / 6 = 25

we're left with x = 25

The answer would be C, because the dot is in between 24 and 26 which would be 25 and x equals 25