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lisov135 [29]
3 years ago
11

Is 9/12 a rational number

Mathematics
1 answer:
Nesterboy [21]3 years ago
8 0

Answer:

yes rational

Step-by-step explanation:

a rational is a integer, fraction, terminating decimal, or repeating decimal

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The base of a triangle is nine centimeters longer than the perpendicular height. If the area of the triangle is 180 square centi
Rom4ik [11]

Answer:

<em>The base is 24 cm long.</em>

Step-by-step explanation:

<u>Equations</u>

Let's call

b= base of the triangle

h=height of the triangle

The base is 9 cm longer than the height, thus:

b = h + 9

The area of the triangle is:

\displaystyle A=\frac{bh}{2}

\displaystyle A=\frac{(h+9)h}{2}

And its value is 180:

\displaystyle \frac{(h+9)h}{2}=180

Multiplying by 2:

(h+9)h=360

Operating:

h^2+9h-360=0

Factoring:

(h-15)(h+24)=0

The only valid positive solution is:

h = 15 cm

And b = h + 9 = 24

b = 24 cm

The base is 24 cm long.

7 0
3 years ago
Suppose Johnny invests $41,745 into an account, which has been earning interest for many years and he now has a total of $39,974
cupoosta [38]
A negative number wouldn't be reasonable in investments because when you invest you are adding money to something. If you invest you aren't removing anything so there can't be negative numbers.
7 0
3 years ago
Read 2 more answers
Fam what is 25 x 25 please help me fam needd the answer ASAP!
Vlada [557]

Answer:

it is 625

Step-by-step explanation:

5 0
3 years ago
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1) Original price of a goldfish: $7.70<br>Discount: 30%​
Leni [432]

Answer:

$5.39

Step-by-step explanation:

In order to solve for this equation, we are going to multiply 7.70 by 0.3 to find how much money was taken which was 2.31.

Subtract2.31 from 7.70 to recieve your new price :)

7.70*0.3=2.31\\7.70-2.31=5.39

Hope this Helps!

8 0
3 years ago
Please solve this for me
Papessa [141]

Answer:

69.08m

calculate the circumstances :

2×r×pi

11×2×3.14

=22×3.14

=69.08m

3 0
3 years ago
Read 2 more answers
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