Can someone help me with this please ?

Answers

Answer 1

Answer:
If the triangle is a right triangle, then

   (3x)² + x² = (10)² .

   9x² + x² = 100

   10x² = 100

   x² = 10

   x = √10 = approx. 3.1622...

If ' x ' is anything less than √10 , then the short sides are too short
to make a right angle at the top, and the angle where they meet
is obtuse.

' x ' has to be greater than 2.5 ... otherwise the two short sides
can't stretch far enough to reach both ends of the long side (10) .

So, if 2.5 < x < √10 , then there is a triangle, and it's obtuse.

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Skyler goes to a school which has 1000 students in it. She asks 40 random students whether they like the new 8.30am start to the day. 30 of them say "no" they do not like it. Use the information to estimate how many students in the whole school dislike the 8.30am start.

Answers

30/40 say no, so x/1000 would say no. 1000/40=25, 25*30=750. So, about 750 would dislike it.

6x - 5y= 70
7x + 2y=66

I need a answer in words step by step please help!!

Answers

Answer:

x = 10

y = -2

Step-by-step explanation:

Elimination method:

6x - 5y = 70 -----------------(I)

7x + 2y = 66 -----------------(II)

Multiply equation (I) by 2 and equation (II) by 5 and add. So, y will be eliminated and you can now find the value of x

(I)*2 12x - 10y = 140

(II)*5 35x + 10y = 330 {Now add}

47x = 470

x = 470/47

x = 10

Plugin x = 10 in equation (II)

7*10 + 2y = 66

70 + 2y = 66

Subtract 70 from both sides

2y = 66 - 70

2y = -4

Divide both sides by 2

y = -4/2

y = - 2

(10,-2) or x=10 , y=-2

How do you use a abacus in a simple way?

Answers

Each column is a digit, and the top two beads each represent 5 and the bottom 5 beads each represent 1. To read it, you add up the values of the "top" beads that are dropped down and the "bottom" beads that are raised up, and you read the number left to right.

Find f(x)=x 4/7+9/14 can someone help me solve this as a improper fraction

Answers

the expression in the form of an improper fraction is: $f(x) = (14x^(4/7) + 9) / 14$ . To find f(x) when $f(x) = x^(4/7) + 9/14$ , we need to combine the terms on the right-hand side and simplify the expression.

Step 1: Combine the terms on the right-hand side:

$f(x) = x^(4/7) + 9/14$

Step 2: To express $x^(4/7)$ as an improper fraction, we raise x to the power of 4/7. Remember that the denominator of a fraction represents the root (in this case, the 7th root) and the numerator represents the power (in this case, 4).

$x^(4/7) = (x^4)^(1/7)$

Step 3: Simplify the expression $(x^4)^(1/7):$

$(x^4)^(1/7) = x^(4/7)$

Now, the expression becomes:

$f(x) = x^(4/7)+ 9/14$

Step 4: To make a common denominator for adding the fractions, find the least common multiple (LCM) of 7 and 14, which is 14.

Step 5: Rewrite both fractions with a denominator of 14:

$f(x) = (14/14) * x^(4/7) + (9/14)$

Step 6: Combine the fractions:

$f(x) = (14x^(4/7) + 9) / 14$

So, the expression in the form of an improper fraction is:

$f(x) = (14x^(4/7) + 9) / 14$

To know more about improper fraction:

brainly.com/question/25429050

#SPJ2

so you multiply the top and bottom of the first fraction by two, so that both fractions have 14 on the bottom, then we can simply add across the top

Mary has saved $17.50 in the past 3 weeks. At this rate how much will she save in 15 weeks

Answers

Answer:

$87.50

Step-by-step explanation:

With this amount of detail we can see that she has saved 17.5 in 3 weeks. We need to find how much in 15 weeks so we...

15/3=5

17.5*5=87.50

After the stock market crash, the government created the ______to regulate businesses.A. Stock Market Oversight Board B. Internal Revenue Service C. Business Administration Commission D. Securities and Exchange Commission

Answers

Answer:

D the sec

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hope this helps!! Good luck!!!

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