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2 years ago

Can someone help me x^2 + 3 - 6(3x + 4) i will give brainliest

Mathematics

1 answer:

dangina [55]2 years ago

8 0

Answer:

${x}^{2} - 18x - 21$

Step-by-step explanation:

${x}^{2} + 3 - 6(3x + 4)$

${x}^{2} + 3 - 18x - 24$

${x}^{2} - 21 - 18x$

$\boxed{\green{= {x}^{2} - 18x - 21}}$

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If a wholesale price of an item is $250 and the markup is 25%. how much will you pay for the item.

Virty [35]

Step-by-step explanation:

250/100= 2.5

2.5×25= 62.5

250+62.5= 312.5

you will pay $312.50

5 0

3 years ago

What are the solutions of this quadratic equation? 4x2 + 3 = 4x + 2

never [62]

Answer:

A. x = 1/2

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra I

Terms/Coefficients
Factoring
Standard Form: ax² + bx + c = 0
Solving quadratics

Step-by-step explanation:

Step 1: Define

Identify

4x² + 3 = 4x + 2

Step 2: Solve for x

[Equality Property] Rewrite in standard form: 4x² - 4x + 1 = 0
Factor: (2x - 1)² = 0
Solve: x = 1/2

5 0

2 years ago

A round cake has a diameter of 30\text{ cm}30 cm30, start text, space, c, m, end text. Angela places the cake on a circular cake

VLD [36.1K]

Answer:

The circumference of the cake board is 35π cm.

Step-by-step explanation:

The question is incomplete, so the complete question is below:

A round cake has a diameter of 30 cm. Angela places the cake on a circular cake board with a diameter 5 cm longer than that of the cake. What is the circumference of the cake board? Give your answer in terms of π.

Now, to find the circumference of the cake board.

As, given diameter of cake = 30 cm.

And diameter of cake board is 5 cm longer than that of the cake.

Thus, the diameter of cake board is:

$30\ cm+5\ cm=35\ cm.$

So, to find the circumference we need radius, by putting formula:

$Radius(r)=\frac{Diameter}{2}$

$Radius(r)=\frac{35}{2}$

$Radius(r)=17.5\ cm.$

Now, to get the circumference of the cake board we put formula:

$Circumference=2\pi r.$

$Circumference=2\times \pi \times 17.5$

$Circumference=35\pi \ cm.$

Therefore, the circumference of the cake board is 35π cm.

4 0

3 years ago

If anyone knows this please help me

alexgriva [62]

Answer:

oh hey I gotchu-

first of all you are gonna make that into two rectangle by slicing the top off if that makes sense so you now have a large rectangle (11×12) and a small one (3×8) now you use the area formula for rectangles base×height so the small one becomes (3×8)=24 and the large one is (11×12)=132. now to make them into one shape for the total area you add those two values 132+24=156 so your total area is 156m²

6 0

2 years ago

During the past year in the maternity ward of a hospital in a large city, 1,254 males were born and 1,462 females. If we can ass

Afina-wow [57]

$\frac{1,254}{1,254+1,462} / \frac{1,462}{1,254+1,462}\\ \frac{1,254}{2,716} / \frac{1,462}{2,716}\\\frac{627}{1,358} / \frac{731}{1,358}$

Chance of boy: 627/1,358

Chance of girl: 731/1,358

6 0

3 years ago