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4 years ago

WILL GIVE BRAINLIEST !!!

Mathematics

2 answers:

Semmy [17]4 years ago

8 0

Answer:

#7 is 8

Step-by-step explanation:

8x7 56.

ANEK [815]4 years ago

4 0

Answer:

Wwwwwwwwwwww

Step-by-step explanation:

You might be interested in

Find a rectangular equation. X = 3tan t, Y = 2sec t, for in (−π /2 , π /2 )

anzhelika [568]

Answer:

Step-by-step explanation:

$x= 3tan(t) \rightarrow tan(t) = \frac{x}{3} \rightarrow tan^2(t) = \frac{x^2}{9}$

$y= 2sec(t) \rightarrow sec(t) = \frac{y}{2} \rightarrow sec^2(t) = \frac{y^2}{4}$

$sec^2(t) -tan^2(t) =1$

$\frac{y^2}{4} -\frac{x^2}{9} =1$

is the rectangular equation of the parameter functions.

also, it is a hyperbola. The condition $-\pi/2 < t$ limit x from 0 to infinitive

7 0

4 years ago

What amount of a 40% acid solution must be mixed with 200 mL 10% solution to produce a 20% solution?

vaieri [72.5K]

Answer:

Step-by-step explanation:

(x + 200)20 = 200(10) + x(40)

20x + 4000 = 2000 + 40x

2000 = 20x

X = 100 mL

8 0

3 years ago

A city has a population of 245,600 which is 110% of the population from the previous year. What was the population the previous

MrMuchimi

<h2>Answer:</h2><h2>The city population last year = 2233 approximately</h2>

Step-by-step explanation:

The current population of the city = 245,600

Rate of increase = 110 %

The population in previous year = ?

Let x be the population of previous year

x(110%) = 245600

x = $\frac{245600}{110}$

= 2232.7

The city population last year = 2233 approximately

4 0

3 years ago

A gof group planned a trip to

sdas [7]

Step-by-step explanation:

96=60%

96÷6= 10%

16= 10%

16×10=100%

160=100%

7 0

4 years ago

I need help with this we my class skipped this section

Sati [7]

Answer:

v^ 3 = 1000

so v = cube root of 1000

v = 10

3 0

3 years ago

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