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2 years ago

Please help me with maths. it's a standard form topic

Mathematics

1 answer:

dimulka [17.4K]2 years ago

7 0

Answer:

Bacteria A has diameter size of 1 micrometer = 1 × 10⁻⁶ m

a) <u>B is 1× 10⁻³ size of A:</u>

1 × 10⁻⁶ * 1 × 10⁻³ = 1 × 10⁻⁹ m

b) 1 nanometer = 1 × 10⁻⁹ m

And bacteria B diameter size is <u>equal</u> to 1 nanometer

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Jasmine has $26 to spend on binders and pens. The pack of pens cost $4.75. Each binder costs $5. Write an inequality to determin

Elenna [48]

Answer

(5 x B) + 4.75 ≤ 26

B is the amount of binders.

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2 years ago

You buy a new yoga ball. The ball has a diameter of 26 inches. What is the volume of the ball? Use 3.14 for pi. Round your answe

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Step-by-step explanation:

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3 years ago

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The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.

Lady bird [3.3K]

Answer:

Step-by-step explanation:

The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.

find the value of x

x + 2x + x + 8 = 180

4x = 180 - 8

4x = 172

x = 172 : 4

x = 43

find angles

2x = 43 * 2

2x = 86°

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x = 43°

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x + 8 = 43 + 8

x = 51°

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check

86 + 43 + 51 = 180°

the answer is good

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1 year ago

The graph of g(x)=ax^2 opens downward and is narrower than the graph of f(x)=x^2. Which of the

Masteriza [31]

You’re answer is

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2 years ago

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Match the real-world problem to its constant of proportionality.

irakobra [83]

Answer:

a. $18.36 for 3 pizzas : k = 6.12

b. $4.17 for 3 pounds of bananas . k = 1.39

c. $16.48 for 4 pounds of potatoes . k = 4.12

d. 2 cups of flour to make 24 cookie . k = 12

Step-by-step explanation:

PROPORTIONALITY:

Two quantities x and y are said to proportional to each other

if for x ∝ y , x = y k.

Here, k is called the PROPORTIONALITY CONSTANT.

⇒ $x \propto y \implies k = \frac{x}{y}$

Now, for the given quantities:

a. $18.36 for 3 pizzas [box]

Here, $k = \frac{x}{y} = \frac{18.36}{3} = 6.12$

So, the proportionality constant is 6.12.

b. $4.17 for 3 pounds of bananas [box]

Here, $k = \frac{x}{y} = \frac{4.17}{3} = 1.39$

So, the proportionality constant is 1.39.

c. $16.48 for 4 pounds of potatoes [box]

Here, $k = \frac{x}{y} = \frac{16.48}{4} = 4.12$

So, the proportionality constant is 4.12.

d. 2 cups of flour to make 24 cookies

Here, $k = \frac{x}{y} = \frac{24}{2} = 12$

So, the proportionality constant is 12.

7 0

2 years ago