3 years ago

Pleaseeeee answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Phoenix [80]3 years ago

6 0

Answer:

2.5

Step-by-step explanation:

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Solve for w: -4u-w = u+6w

wlad13 [49]

Answer:

Step-by-step explanation:

-4u - w = u + 6w

-4u = u + 7w (Add w to both sides)

-5u = 7w (Subtract u from both sides)

w = $-\frac{5u}{7}$ (Divide both sides by 7)

8 0

3 years ago

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You are trapped in a dark cave with three indistinguishable exists on the walls. One of the exits takes you 3 hours to travel an

bija089 [108]

Answer:

6 HOURS

Step-by-step explanation:

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3 years ago

Given 5n² + 6n + 7 = n² - 4n : a. Find the value of the discriminant. b. State the number and type of roots/solutions/zeros.[2 r

Vika [28.1K]

$\bf 5n^2+6n+7=n^2-4n\implies 5n^2+6n+7-n^2+4n=0
\\\\\\
4n^2+10n+7=0\\\\
-------------------------------\\\\
\begin{array}{llccll}
&{{ 4}}x^2&{{ +10}}x&{{ +7}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}
\\\\\\
discriminant\implies b^2-4ac=
\begin{cases}
0&\textit{one solution}\\
positive&\textit{two solutions}\\
negative&\textit{no solution}
\end{cases}$

if you get a positive value, that means 2 real solutions
if you get 0, means 1 real solution only
if you get a negative value, is an imaginary root solution, same as saying no solution.

4 0

3 years ago

A car rental agency advertised renting a car for $23.95per day and $0.34 per mile.if trevor rents this car for 2 days, how many

sesenic [268]

Answer:

He can drive 153 miles. PLEASE GIVE BRAINLIEST

Step-by-step explanation:

$23.95 x 2 = $47.90

$100 - $47.90 = $52.10

$52.10 ÷ .34 = 153.23 = 153 miles

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3 years ago

Solve the proportion 9/12 = 15/a

evablogger [386]

Answer:

a=20

Step-by-step explanation:

You cross multiply: 9a=180

a=20.

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3 years ago