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3 years ago

Solve the equations and match them with their solutions.

Mathematics

1 answer:

Artyom0805 [142]3 years ago

7 0

1 is x=13.5

2 is x=-260

3 is x=38

4 is x=-37^38

i think this is correct

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Write an equation to represent the following statement.

Alik [6]

Answer:

Your answer would be j = 8

Step-by-step explanation:

= j + 47 = 55

= j + 47 - 47 = 55 - 47

Answer: j = 8

Hope this helped :D

Please give me brainiest :)

3 0

1 year ago

Read 2 more answers

I am ab odd number i am less than 100 the sum of my digits is 12 i am a multible of 15 what number amm i

Ivan

Answer:

Step-by-step explanation:

7 + 5 = 12

15 x 5 = 75

3 0

3 years ago

The area of a rectangle is 96 in2. The length of the rectangle is 8 inches. Find the perimeter of the rectangle. Show all work f

sukhopar [10]

Length.
96÷8=12inches

Perimeter.
(12+8)+(12+8)
20+20=40inches

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2 years ago

Using the answers from z^4=16 determine the solutions of the equation (x+1)^4=16(x-1)^4

Artemon [7]

i hope i have been useful buddy.

good luck ♥️♥️♥️♥️♥️.

4 0

3 years ago

Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S

mote1985 [20]

Answer:

Silver

Step-by-step explanation:

Find the volume of the coin

<u>Volume of a cylinder</u>

$\textsf{V}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

Given:

r = 1.5 cm
h = 0.25 cm

Substituting given values into the formula to find the volume:

$\sf \implies V=\pi (1.5)^2(0.25)$

$\sf \implies V=0.5625 \pi \:cm^3$

Find the density of the coin given it has a measured mass of 18.54 g

<u>Density formula</u>

$\sf \rho=\dfrac{m}{V}$

where:

$\rho$ = density
m = mass
V = volume

Given:

m = 18.54 g
$\sf V=0.5625 \pi \:cm^3$

Substituting given values into the density formula:

$\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}$

$\implies \sf \rho=10.49149385\:g\:cm^{-3}$

Given:

$\textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}$

$\textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}$

Therefore, as $\sf \rho=10.49\:g\:cm^{-3}$ the coin is made from silver.

4 0

1 year ago