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2 years ago

Please answer this friends.

Mathematics

1 answer:

juin [17]2 years ago

4 0

Answer:

see explanation

Step-by-step explanation:

To express a proper fraction in decimal form.

Divide the numerator by the denominator, that is

22 ÷ 7 ≈ 3.1429 ( to 4 decimal places )

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The triangles below are congruent and their corresponding parts are marked.

Grace [21]

Answer:

The answer is below.

Step-by-step explanation:

8 0

2 years ago

Jack's average in math for the first nine week was an 88. His second nine weeks average decreased 12.5 . What was his average fo

pashok25 [27]

The answer is that his average is 75.5 for the second nine weeks

5 0

2 years ago

Solve the equation. 6 = 2(x + 8) - 5x<br> A. 2/3 <br> B. 3 1/3 <br> C. - 2/3 <br> D. -3 1/3

Zinaida [17]

6 = 2(x+8) - 5x
⇒ 2x+ 2*8 -5x= 6
⇒ (2x -5x)+ 16= 6
⇒ -3x = 6 -16
⇒ -3x = -10
⇒ x= -10/(-3)
⇒ x= 10/3
⇒ x= 3 1/3

The correct answer is B. 3 1/3~

4 0

2 years ago

Read 2 more answers

Find the value of tangent for angle A

gavmur [86]

AC = √(40²-12²) = √(1600-144) = √1456 = 4√91

tanA = 12/4√91 = 3/√91 = 3√91/91

option а.

4 0

2 years ago

Read 2 more answers

8.46 If 100 is decreased by a% and the result is decreased by b%, then what is the total percent decrease (in terms of a and b)?

Marysya12 [62]

Answer:

The total percent decrease is $a+b-\frac{a b}{100}$

Step-by-step explanation:

We are given with a word problem
We are asked to find the total percentage decrease
We can do this in two steps

Step 1: Finding the two percentage decrease

Step 2: Finding their difference

Step 1 of 2

Let the decrease by a% be 100-a

Then b% decrease is

$\begin{aligned}\frac{b}{100} \times(100-a) &=\frac{100 b-a b}{100} \\\frac{100 b}{100}-\frac{a b}{100} &=b-\frac{a b}{100}\end{aligned}$

Step 2 of 2

The percentage difference between the two percentages is,

$\begin{aligned}&(100-a)-\left(b-\frac{a b}{100}\right)=100-a-b+\frac{a b}{100} \\&100-a-b+\frac{a b}{100}=100-\left(a+b-\frac{a b}{100}\right)\end{aligned}$

Since 100 is the total percent $a+b-\frac{a b}{100}$ is the percentage decrease.

3 0

1 year ago

Please answer this friends.​

Please answer this friends.