All categories

2 years ago

Match the equivalent expressions

Mathematics

1 answer:

Y_Kistochka [10]2 years ago

6 0

Answer:

2= e

3= a

4= d

5= c

6= b

I hope it helps you ❤

You might be interested in

Gillian read 3135 words in 19 minutes. Let w represent the words read each minute. If Gillian read the same number of words each

sweet [91]

Answer:

she read 165 words per minute

Step-by-step explanation:

if you tell us that Gillian read 3135 words in 19 minutes we can represent it as follows

19 m = 3135w

so now we have to find out how much I read in 1 minute, for this we have to divide both parts of equality by 19

19m = 3135w

19m/19 = 3135w/19

1m = 165w

she read 165 words per minute

5 0

2 years ago

The point R is halfway between the integers on the number line below and represents the number ____. (Use the hyphen for negativ

Lilit [14]

Answer:

-5.5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximati

pochemuha

Answer: 8 (Pi - sqrt(3))

Discussion:

The area of the shaded region is that of the semicircle minus the area of the triangle..

Area of semicircle = 1/2 * Pi * R^2

Where R^2 is the square of the radius of the circle. In our case, R ( = OC)

= 4 so the semicircle area is

(1/2) * Pi * (4^2) = (1/2) * Pi * 16 = 8 Pi

Area of triangle.

First of all, angle ACB is a right angle ( i.e. 90 degrees).

* This is the Theorem of Thales from elementary Plane Geometry. *

so by Pythagoras

AC^2 + BC^2 = AB^2

But CB = 4 (given) and AB = 4*2 = 8 ( the diameter is twice the radius).

Substituting these in Pythagoras gives

AC^2 + 4^2 = 8^2 or

AC^2 = 8^2 - 4^2- = 64 - 16 = 48

Hence AC = sqrt(48) = sqrt (16*3) = 4 * sqrt(3)

We are almost done! The area of the triangle is given by

(1/2) b * h = (1/2) BC * AC = (1/2) 4 * (4 * sqrt(3)) = 8 sqrt(3)

We conclude the area area of the shaded part is

8 PI - 8 sqrt(3) = 8 (Pi - sqrt(3))

Note that sqrt(3) is approx 1.7 so (PI - sqrt(3)) is a positive number, as it better well be!

8 0

2 years ago

Please help with question 1

Shkiper50 [21]

Answer:

y = (5/9)(x -2)(x +6)

Step-by-step explanation:

When a polynomial has a zero (p, 0), it has a factor (x -p).

The given zeros mean the factored form of the equation will be ...

y = a(x -2)(x +6)

The given point will mean the value of 'a' will satisfy ...

(x, y) = (3, 5)

5 = a(3 -2)(3 +6) = 9a

a = 5/9 . . . . . . . . . . . . . . divide by the coefficient of 'a'

The factored equation is ...

y = (5/9)(x -2)(x +6)

8 0

2 years ago

An ice cream cone has a diameter of 4.2 cm and a height of 11.5 cm. What is the volume of the cone? A. 18.6 cm³ B. 53.1 cm³ C. 2

777dan777 [17]

Answer:

B. 53.1 cm³

Explanation:

$\sf volume \ of \ cone: \dfrac{1}{3} \pi r^2h \ \ \ \ (r \ is \ radius, \ h \ is \ height)$

Here Given:

height: 11.5 cm

diameter: 4.2 cm

radius: d/2 = 4.2/2 = 2.1

Volume:

$\sf \cdot \ \dfrac{1}{3} \pi r^2h$

$\sf \cdot \ \dfrac{1}{3} (3.14) (2.1)^2(11.5)$

$\sf \cdot \ 53.11 \ cm^3$ ≈ $\sf 53.1 \ (rounded \ to \ nearest \ tenth)$

6 0

2 years ago