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2 years ago

Please solve all if you do I’ll give brainly

Mathematics

2 answers:

riadik2000 [5.3K]2 years ago

7 0

Answer:

1. 330,400

2. 0.000084

3. 2,100

4. 7.823 x 10^9

Mila [183]2 years ago

4 0

Answer:1. 330,400

2. 0.000084

3. 2,100

4. 7.823 x 10^9

Step-by-step explanation:hope this helps

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A rectangular pool 12 meters by 8 meters is surrounded by a walkway of width x meters. At

Debora [2.8K]

Answer:

x=3 meters

Step-by-step explanation:

step 1

Find the area of the rectangular pool

$A=LW$

we have

$L=18\ m\\W=12\ m$

substitute

$A=18(12)=216\ m^2$

step 2

Find the area of rectangular pool including the area of the walkway

Let

x ----> the width of the walkway

we have

$L=(18+2x)\ m\\W=(12+2x)\ m$

substitute

$A=(18+2x)(12+2x)$

step 3

Find the area of the walkway

To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway

$A=(18+2x)(12+2x)-216$

step 4

Find the value of x if the area of the walkway equal the area of the pool

$(18+2x)(12+2x)-216=216$

Solve for x

$(18+2x)(12+2x)=432\\216+36x+24x+4x^{2}=432\\4x^{2} +60x-216=0$

Solve the quadratic equation by graphing

The solution is x=3 meters

see the attached figure

6 0

4 years ago

Read 2 more answers

g If the events A and B are independent with P( A) = 0.35 and P( B) = 0.45, then the probability that both events will occur sim

Reptile [31]

Answer:

0.1575.

Step-by-step explanation:

Here, as they are independent, we multiply the probabilities:

P( A and B) = 0.35*0.45

= 0.1575.

6 0

3 years ago

PLEASE HURRY!! I WILL MARK BRAINIEST!

prohojiy [21]

Answer:

x=2.8

Step-by-step explanation:

If JKLMN and PQRST are similar then you can look the to other sides to find the ratio that relates the two. For this specific one you are able to fin 0.4 is the relationship.

NJ is related to TP by a factor of 1.4. -> NJ*1.4=TP -> 4*1.4=5.6

The rest can be said to relate all the other sides together.

8 0

3 years ago

Which of the following ratio is equivalent to 3/16? a. 16:3

Ostrovityanka [42]

If one ratio is equivalent to another, that means that you multiply the top and the bottom on one ratio by a constant to get the larger ratio. D does that here for us. We have to multiply 3 by 5 to get to 15, so 16 times 5 better be 80 and it is.

5 0

4 years ago

Read 2 more answers

one teacher want to give each student 4/5 of a slice of pizza, if the teacher has 4 slices of pizza, then how many students will

GuDViN [60]

Answer:

The answer is 5 students.

Step-by-step explanation:

This problem is a division problem.

To solve, divide 4 by 4/5.

There is a strategy for this- Keep, Change, Flip.

Keep the dividend like it is, which is 4 or 4/1.

Change the division to multiplication.

And flip the divisor- 4/5 to 5/4.

When you multiply, you should get 20/4.

Simplify by dividing 20 by 4.

20 divided by 4 is 5.

So the answer is 5 students

6 0

3 years ago