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3 years ago

Which of these is an equation? A 2y + 7 = 9 B 2x > 3 C 3n + 5 D a2 + 2

Mathematics

1 answer:

nikklg [1K]3 years ago

6 0

Answer:

Option A is correct answer.

Step-by-step explanation:

An equation is having two sides equal. It has an = sign in it.

So, Option A 2y+7 = 9 is an equation as it has = sign in it. So, it is correct option.

All other options do not have = sign in them so, they are not equations.

You might be interested in

What is the area of a circle with a diameter of 12.6 in.?

Zepler [3.9K]

Hey there! I'm happy to help!

To find the area of a circle, you square the radius and then multiply by pi (3.14 in our case).

The radius is half of the diameter.

12.6/2=6.3

We square this.

6.3²=39.69

We multiply by 3.14

39.69×3.14=124.6266

We round to the nearest hundredth, giving us an area of 124.63 in².

Now you can find the area of a circle! Have a wonderful day! :D

5 0

3 years ago

How do i solve this question

Ludmilka [50]

Answer:

$a\frac{c}{8\pi b}$

Step-by-step explanation:

Divide both sides by $8\pi b$

$\frac{8\pi ab}{8\pi b} =\frac{c}{8\pi b}$

Simplify:

$a\frac{c}{8\pi b}$ ; $a\frac{c}{8\pi b}; b\neq 0$

8 0

3 years ago

karen drove 3/4 of a mile in 1/60 of an hour .At this rate,how many miles would she drive in one hour

amid [387]

Answer:

45 miles

Step-by-step explanation:

1/60 of one hour (60 minutes) equates to 1 minute

Karen is driving 3/4 of a mile in 1 minute to multiply 3/4 and 60 to get 45 miles

6 0

3 years ago

Find the average velocity of the function over the given interval.

snow_lady [41]

Answer:

Average velocity of the function over the given interval

= $log(\frac{7}{4} ) -2$

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given function y = 3/x -2 ...(i)

The average velocity of the function over the given interval

Average velocity = $\frac{1}{b-a} \int\limits^b_a {(\frac{3}{x} -2)} \, dx$

= $\frac{1}{7-4} \int\limits^7_4 {(\frac{3}{x} -2)} \, dx$

now integrating

= $\frac{1}{3}( \int\limits^7_4 {(\frac{3}{x} )} \, dx-2\int\limits^7_4 {1} \, dx )$

= $\frac{1}{3} (3 (log x) - 2 x )_{4} ^{7}$

= $\frac{1}{3}( (3 (log 7) - 14 )-(3 log 4 -8))$

by using formulas

log a-log b = log(a/b)

on simplification , we get

= $\frac{1}{3}( (3 (log 7) -3 log 4 ) - \frac{1}{3} (6)$

= $log(\frac{7}{4} ) -2$

Average velocity of the function over the given interval

= $log(\frac{7}{4} ) -2$

6 0

3 years ago

(-9,3) and (-1,1) find the slope between each pair of points

Maksim231197 [3]

Hey, using y2-y1/x2-x1 you know that slope has to be -1/4

6 0

3 years ago