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2 years ago

Help me please and thank you , 7th grade math

Mathematics

1 answer:

Oxana [17]2 years ago

5 0

Step-by-step explanation:

1. we know

area = πr²

a/q

22/7 × (50)²

22/7 × 2500

55000/7

7857.14

therefore, option c is correct

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Which linear inequality is represented by the graph?

julia-pushkina [17]

Please where is the graph

8 0

3 years ago

A town has a population of 5000 and grows at 4% every year. To the nearest year, how long will it be until the population will r

Rus_ich [418]

Answer:

About 21.457 years

Step-by-step explanation:

You can solve this by setting up a simple equation.

$5000\cdot 1.04^x \geq 11600$

$1.04^x \geq 2.32$

log base 1.04 2.32=x

$x\approx 21.457$ years

Hope this helps!

8 0

3 years ago

PLZ HELP PLZ HELP brainlyist for correct answer

Amiraneli [1.4K]

So you basically plug in the x value beside the 5 so if your on number 3 the answer would be 5(3) which is 15

4 0

3 years ago

Four more than three times n equals -5

Verizon [17]

3n+4=-5

do the opposite of adding 4. this means you have to subtract 4 from 4. whatever you do to the problem, you must do to the answer. now subtract 4 from -5.

-5-4=-9

since 4-4=0, we can take 4 out of the equation. now you have:

3n=-9

now divide -9 by 3

-9/3=-3

n=-3

hope this helps :)

5 0

3 years ago

Help me with this question, please

anzhelika [568]

Answer:

Part 1: [ -4 = -8 ]

Part 2: Inconsistent

Step-by-step explanation:

1. Move all terms that don't contain x to the right side:

3x - 6y+6y = -12+6y

= 3x = -12 + 6y

2. Isolate x:

$\frac{3x}{3} = \frac{-12+6y}{3}$

x = -4 + 2y

3. Substitute the new expression into the original:

-4 + 2y - 2y = -8

4. Simplify:

-4 + 0 = -8

[ -4 = -8 ]

The two solutions are not equal in value, so, we can conclude that the system of equations has no solution, or is inconsistent.

hope this helps!

7 0

2 years ago