4.2x-1.4y= 2.1 what is Y plz i need help and i don't understand

Answer:

Please give brainlliest thanks! :)

Answer:

-4

Step-by-step explanation:

x2 is x*2.

If x=-2, then the equation would be -2*2 which is -4.

Answer:

-4

Step-by-step explanation:

x2 when x=-2

-2 (2)

-2 · 2

-4

Answer:

m is equal to -1 ± 2√3, which is approximately equal to 2.46 and -4.46

Step-by-step explanation:

-4m² + 2m - 11 = -5m²

m² + 2m - 11 = 0

m² + 2m + 1 = 12

(m + 1)² = 12

m + 1 = ± √12

m = -1 ± 2√3

Answer:

m∠3 = 112°     m∠5 = 38°     m∠6 = 68°    m∠8 = 74°

You do the others

Step-by-step explanation:

Facts you need to solve this problem.

1.  Vertical angles are congruent

2.  Alternate interior angles are congruent when lines are parallel

3.  Sum of the measures of the angles of a triangle is 180

4.  Adjacent angles are supplementary when two lines intersect

m∠3 = 112°   (Reason 1 above)

m∠6 = 180 - 112 = 68°   (Reason 4)

m∠6 + m∠5 + 74 = 180°  (Reason 3)

68 + m∠5 + 74 = 180

142 + m∠5 = 180

m∠5 = 38°

m∠8 = 74°  (Reason 2)

That gives you a start, so I will let you find all the others.  OK?  I know you don't want to do that, but you need to be able to do this type of problem.  Now, go for it!!

Answer:

desmos

Step-by-step explanation:

Answer:

GeoGebra Classic its a little complacated but it works really well

Step-by-step explanation:

Answer:

< and >

Step-by-step explanation:

If it doesnt have the line under it, it means the number is  not included

an open circle means the number is not included

closed circle means its included

Hope this helps ^-^

Answer:

C

Step-by-step explanation:

lol didn't i just answer one of your questions, also give me brainliest pls :)

First, the function was multiplied by 3, which is a vertical dialation by a factor of 3. Then, we subtracted 2 from the function, which is a vertical shift down two units. Therefore, the answer is C

The transformations are applied to the graph of the function should be option c. a vertical dilation by a factor of 3 and a vertical shift down 2 units

Since

First, the function should be multiplied by 3, that represent vertical dilation by a factor of 3. After this, we subtracted 2 from the function, i.e. is a vertical shift down two units.

Therefore, the answer is C a vertical dilation by a factor of 3 and a vertical shift down 2 units.

Learn more about transformations here: https://brainly.com/question/19560160

Answer:

The area of the shaded portion is 123 cm^2

Step-by-step explanation:

Here, we want to find the area of the shaded portion

To find this, we subtract the area of the smaller inner rectangle from that of the outside bigger one

Mathematically, the area of a rectangle at any point in time is length * width

For the bigger one, we have;16 * 9 = 144 cm^2

For the smaller inner one, we have ;3 * 7 = 21 cm^2

The area of the shaded portion which is the difference is;

144-21 = 123 cm^2

Answer:

4329 softballs

Step-by-step explanation:

To find the number of softballs that will fit into the container, we first find the volume of the softball. Since it is a sphere, its volume V = 4πr³/3 where r = radius = d/2 where d = diameter of softball.

So, V = 4π(d/2)³/3 = πd³/6

Since d = 8.3 in,

V =  πd³/6 =  π(8.3 in)³/6 = π × 571.787 in³/6 = 299.39 in³

The volume of the box, V' = 15 × 10 × 5 ft³ = 750 ft³ = 750 × (12 in)³ = 750 × 1,728 in³ = 1,296,000

So, for n softball to fit, its volume must equal the volume of the storage unit.

The volume of n softballs is nV.

For the softballs to fit, V' = nV

n = V'/V

= 1,296,000 in³/299.39 in³

= 4328.8 softballs

≅ 4329 softballs since we cannot have a decimal number of softballs.

Answer:

x= 54

Step-by-step explanation:

-9=x/-6

x-6 on both sides

54= x

Answer:

3?

Step-by-step explanation:

First I added 20 dollars to 2.50 and I got 22.50 than  I divided 67.50 / 22.50 which gave me 3, so I guess the answer is 3. Hope this helped!

Answer:

3 1/2 lb

Step-by-step explanation:

Subtract 1 4/8 from 5 since Maya used 1 4/8 lb:

5 - 1 4/8 = 3 4/8 or 3 1/2 lb of sugar

Answer: D

Step-by-step explanation: its best you can get to the a quotient (from Latin: quotiens "how many times", pronounced) is a quantity produced by the division of two numbers. The quotient has widespread use throughout mathematics, and is commonly referred to as the integer part of a division (in the case of Euclidean division), or as a fraction or a ratio (in the case of proper division). For example, when dividing 20 (the dividend) by 3 (the divisor), the quotient is 6 in the Euclidean division sense, and 62/3 in the proper division sense.

Answer: 128.5 gallons

Step-by-step explanation:

V= πr²h

V=π15²42

V= 29688.05058in³ ÷ 231 ≈ 128.5 gallons

Note- It would mean the world to me if you could mark me brainliest!

Answer:

Insurance Expense (Dr.) $200

Prepaid Insurance (Cr.) $200

Supplies expense (Dr.) $1,250

Cash (Cr.) $1,250

Depreciation Expense (Dr.) $424

Accumulated depreciation Building (Cr.) $304

Accumulated Depreciation Equipment (Cr.) $120

Interest Expense (Dr.) $200

Interest Payable (Cr.) $200

Unearned Rent Revenue (Dr.) $2,200

Rent Revenue (Cr.) $2,200

Salaries Expense (Dr.) $700

Salaries Payable (Cr.) $700

Step-by-step explanation:

Three column ledger has particular, debit and credit columns in which all the entries which are recorded in journal entries are posted to have a clear view of the expense and income.

Hey there!

Formula: y2 – y1/ x2 – x1

y2 = 10

y1 = 7

x2 = 1

x1 = 5

Equation: 10 – 7/ 1 – 5

10 – 7 = 3 ⬅️ Numerator

1 – 5 = –4 ⬅️ Denominator

Answer: 3/–4

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer:

1800

Step-by-step explanation:

can i have brainliets, please? hee hee

18m

to convert into cm;

=18x100

=1800cm

Answer:

22, 9, and True.

I hope it helps :)

Answer:

1: y=3/4x-2

2: y=-2x-5

3: y=7x+6

4: y=2x+1

HOPE I HELPED:)

Step-by-step explanation:

Answer:

473 potatoes

Step-by-step explanation:

473/1 = 473

(Plus anything times/divided by 1 equals itself)

so 1:1 x 473:473 = 473:473

Therefore there are 473 potatoes

Answer:

473 potatoes

Step-by-step explanation:

The ratio is 1:1, meaning that for every carrot, there is a potato.

Answer: y= [tex]\frac{-3}{1}[/tex]x-4

Step-by-step explanation:

y=mx+b

slope= -3/1

y intercept (the y intercept is where the line intercepts the y axis) = -4

y= [tex]\frac{-3}{1}[/tex]x-4

I am not a professional, simply using prior knowledge.

Note- It would mean the world to me if you could mark me as brainliest!

Answer:B

y=13cos(1/13x)+13

Step-by-step explanation:

The cosine equation to model the height of the red spot over a distance you ride is y = 13 cos (x/13) + 13. Then the correct option is B.

It is a function that repeats itself in a particular time interval.

You ride through some wet paint on your bike, creating a red spot on the tire.

Write a cosine equation to model the height of the red spot over the distance you ride.

Your bike tire has a radius (r) of 13 inches.

The period is the circumference of the tire (2πr).

The cosine equation is given as

y = A cos (Bx + C) + D

Where

A = the amplitude

B = time period

C = phase difference

D = shifting of central line

Then we have the diagram

A = 13

B = 1/13

C = 0

D = 13

Then the equation will be

[tex]\rm y = 13 \cos (\dfrac{1}{13}x - 0 ) + 13\\\\y = 13 \cos (\dfrac{x}{13} ) + 13[/tex]

More about the cosine function link is given below.

https://brainly.com/question/3876065

#SPJ2

Answer:

4×588= n;n=2,352 hamburgers

Answer: 14

Step-by-step explanation:

110 + 110 + 70 + 5x= 360 ( total number of angles in a quadrilateral is 360 degrees)

290+5x= 360

5x= 360 - 290= 70

x= 70/5= 14

Answer:

When X=5, Y=60

Step-by-step explanation:

24 | 2

36 | 3

48 | 4

60 | 5

Answer:

D. {1,2,3,4}

Step-by-step explanation:

The domain can only be x-values.

Answer: I can make 10 rolls with 2 1/2 cups of flour

Step-by-step explanation:

3/4 cup of flour can makes 3 Dinner rolls

Therefore  2 1/2 cups of flour will make

=2 1/2 x 3) / (3/4)

(5/2 x 3 ) / ( 3/4)

(15/2) /(3/4)

7.5/ 0.75 = 10 rolls

Answer:

i hope this help you

Answer:

Isosceles Triangle

Step-by-step explanation:

Equilateral: All equal sides

Isosceles: 2 equal sides

Scalene: No equal sides