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zalisa [80]
3 years ago
13

The amount of carbon dioxide (\text{CO}_2)(CO 2 ​ )left parenthesis, start text, C, O, end text, start subscript, 2, end subscri

pt, right parenthesis in the atmosphere increases rapidly as we continue to rely on fossil fuels. The relationship between the elapsed time, ttt, in decades, since \text{CO}_2CO 2 ​ start text, C, O, end text, start subscript, 2, end subscript levels were first measured, and the total amount of \text{CO}_2CO 2 ​ start text, C, O, end text, start subscript, 2, end subscript in the atmosphere, A_{\text{decade}}(t)A decade ​ (t)A, start subscript, start text, d, e, c, a, d, e, end text, end subscript, left parenthesis, t, right parenthesis, in parts per million, is modeled by the following function:

Mathematics
2 answers:
miv72 [106K]3 years ago
8 0

what is the question

Vesnalui [34]3 years ago
3 0

Answer:

1.0058

Step-by-step explanation:

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Help need ASAP <br> Trigonometry
Lana71 [14]
1) 0.927184
2) 0.615661
3) 0.383864
8 0
3 years ago
Please help with p and q<br> maths geometry
baherus [9]

Step-by-step explanation:

p)

in a very similar way, as the sum of all 4 angles in a triangle is always 180°, so is the sum of all angles in a quadrilateral (a polygon with 4 sides) 360°.

just look at rectangles at special representatives of such quadrilaterals.

now that we know this, we can simply say, the sum of all angles in our shape must be 360° :

(8x + 2) + (4x + 2) + (x - 2) + (5x -2) =

= 18x = 360

x = 20

A = 8×20 + 2 = 162°

B = 4×20 + 2 = 82°

C = 5×20 - 2 = 98°

D = 20 - 2 = 18°

a trapezium has the following properties (in the UK):

like other quadrilaterals, the sum of all the four angles of the trapezium is equal to 360°.

a trapezium has two parallel sides and two non-parallel sides.

the diagonals of a regular trapezium bisect each other.

in the USA for example the request for 2 parallel sides does not exist.

we have proven the point with the angle sum.

the other 2 are given by the diagram.

so, yes, it is a trapezium.

q)

the sum of all interior angles of a polygon is

(n - 2) × 180°

n being the number of d sides.

we have here a regular pentagon (5 equal sides).

the size of the angle at any vertex is then

(5 - 2) × 180 / 5 = 3 × 180 / 5 = 3×36 = 108°.

so, theta = 108°.

alpha + beta = 108°

ABE is an isoceles triangle.

so, beta = angle 1

beta + angle 1 + theta = 180

2×beta + 108 = 180

2×beta = 72

beta = 36°

therefore,

alpha = 108 - beta = 108 - 36 = 72°

4 0
1 year ago
2. find the value<br><br><br>pls no links ​
natta225 [31]

Answer:

\displaystyle V = 2144.66 \ ft^3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

Volume of a Sphere Formula: \displaystyle V = \frac{4}{3} \pi r^3

  • <em>r</em> is radius

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

<em>r</em> = 8 ft

<u>Step 2: Find Volume</u>

  1. Substitute in variables [Volume of a Sphere Formula]:                                  \displaystyle V = \frac{4}{3} \pi (8 \ ft)^3
  2. Evaluate exponents:                                                                                         \displaystyle V = \frac{4}{3} \pi (512\ ft^3)
  3. Multiply:                                                                                                             \displaystyle V = \frac{2048}{3} \pi \ ft^3
  4. Estimate:                                                                                                           \displaystyle V = 2144.66 \ ft^3
5 0
3 years ago
Haley used unit cubes to build a rectangular prism that is 5 units long, 3 units wide, and 4 units tall. Jeremiah used unit cube
ad-work [718]

Answer:

10 units

Step-by-step explanation:

Let us find the volume of Haley's prism and compare it with the volume of Jeremiah's.

The volume of Haley's prism is:

V = 5 * 3 * 4 = 60 cubic units

Jeremiah's prism has twice the volume of Haley's:

V(J) = 2 * 60 = 120 cubic units

This implies that:

120 = 4 * 3 * h

where h = height of prism

=> 120 = 12h

=> h = 120 / 12 = 10 units

Jeremiah's prism is 10 units tall.

8 0
3 years ago
The expression 53 ( 1 − x) gives the discounted price of a pair of shoes, where x is the percent of the discount written in deci
prisoha [69]

Answer: Option "A" is correct.

Step-by-step explanation:

Since we have given that

53(1-x) represents the discounted price of a pair of shoes , where x is the percent of the discount written in decimal form.

So,

(1-x) represents the percent of original price being paid as we know that if percentage is given in decimal form then to get the percent of  original price being paid  we subtract it from 1.

For example:

Suppose 20% is the percent of discount on market price then the selling price will be 80% of marked price.

In the above example, we subtract it from 100% to get the remaining price  he is receiving at.

If we have 0.2 as discount then the selling price will be 0.8 of marked price i.e. we get 0.8 which tells us the original price is being paid.


8 0
3 years ago
Read 2 more answers
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