All categories

2 years ago

The solution set for 7q2 − 28 = 0 is (Separate the solutions with a comma)

Mathematics

2 answers:

professor190 [17]2 years ago

6 0

Answer:

Solution set for the equation is {2, (-2)}.

Step-by-step explanation:

The given equation is 7q² - 28 = 0

Now we add 28 on both the sides of the equation.

7q² - 28 + 28 = 0 + 28

7q² = 28

divide the equation by 7,

$\frac{7q^{2} }{7}=\frac{28}{7}$

$q^{2}=4$

$\sqrt{q^{2}}$ = ± $\sqrt{4}$

q = ± 2

Or q = 2, (-2)

Solution set for the equation is {2, (-2)}.

SCORPION-xisa [38]2 years ago

4 0

7q^2 − 28 = 0
7q^2 = 28
q^2 = 28/7
q^2 = 4
q^2= 2^2
q=+ 2 and q = -2
hope that helps

You might be interested in

You are asked to draw a triangle with side lengths of 6 inches and 8 inches. What is the longest whole number length that your t

tensa zangetsu [6.8K]

Fo sides, a,b,c
where c is the longest

c<a+b
or else you won't have a triangle

we want the longest side
this mystery side is c
other ones are a and b

c<6+8
c<14
the next largest whole number is 13

answer is 13 inches

3 0

2 years ago

Read 2 more answers

How to solve this? \int \frac { 4 - 3 x ^ { 2 } } { ( 3 x ^ { 2 } + 4 ) ^ { 2 } } d x

ivanzaharov [21]

$\Large \mathbb{SOLUTION:}$

$\begin{array}{l} \displaystyle \int \dfrac{4 - 3x^2}{(3x^2 + 4)^2} dx \\ \\ = \displaystyle \int \dfrac{4 - 3x^2}{x^2\left(3x + \dfrac{4}{x}\right)^2} dx \\ \\ = \displaystyle \int \dfrac{\dfrac{4}{x^2} - 3}{\left(3x + \dfrac{4}{x}\right)^2} dx \\ \\ \text{Let }u = 3x + \dfrac{4}{x} \implies du = \left(3 - \dfrac{4}{x^2}\right)\ dx \\ \\ \text{So the integral becomes} \\ \\ = \displaystyle -\int \dfrac{du}{u^2} \\ \\ = -\dfrac{u^{-2 + 1}}{-2 + 1} + C \\ \\ = \dfrac{1}{u} + C \\ \\ = \dfrac{1}{3x + \dfrac{4}{x}} + C \\ \\ = \boxed{\dfrac{x}{3x^2 + 4} + C}\end{array}$

5 0

2 years ago

The list price of a set of golf clubs is $399.99. If the series discount offered is 20/20/15, find the net cost after trade disc

Artemon [7]

Answer:

1,620/.60 = $2,700

step-by-step explanation:

Calculate the complement of the trade discount 100% - 40 = .60 •Calculate the list price $n Discount Rates EXAMPLE: The list price of the office equipment is $15,000. The chain discount is 20/15/10.Step 1. $15,000 X .20 =$3,000Step 2. $15,000-3,000=$12,000 X .15 = $1,800Step 3. $12,000-1,800 = $10,200 X.10 = $1,020Step 4. $10,000- 1,020 = 9,180 Net PriceCalculating Net Price Using Net Price Equivalent Rate EXAMPLE: The list price of office equipment is $15,000. The chain discount is 20/15/10. What is the net price? Step 1. Calculate each rates complement and convert to a decimal.100%-20 = 80% which is .8100%-15= 85% which is .85100% -10 = 90% which is .9Step 2. Calculate the net price equivalent rate. ( Do not round ).8 X .85 X .9 = .612 Net price equivalent rate. For each dollar you are spending about 60 cents.Step 3. Calculate the net price (actual cost to buyer) $15,000 X .612 = $9,180Step 1. Subtract each chain discount rate from 100% (find the complement) and convert each percent to a decimal.Trade Discount AmountList price x Trade discount rate = Trade discount amount $5,678 x 25% = $1,419.50Net Price List price -- Trade discount amount = Net Price

6 0

2 years ago

The table shown below shows some values for functions f(x) and g(x). What is/are the solution(s) to f(x)=g(x)? Explain your answ

salantis [7]

Answer:

x = -1

Step-by-step explanation:

Both tables show a function value of 9 for x = -1.

x = -1 is the solution to f(x) = g(x), since f(-1) = 9 = g(-1).

5 0

2 years ago

aleksley [76]

Answer:

Whelan

Step-by-step explanation:

stone duck twice is jacky tabby each dvi runs rgb us esc hoc TLC rig TJ DJ gabi FCC fold EU

6 0

2 years ago