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2 years ago

PLEASE, I REALLY NEED YOUR HELP!!

Mathematics

1 answer:

Delicious77 [7]2 years ago

7 0

Answer:

|x-5|=2

Step-by-step explanation:

1- Find the mid value between the given numbers 3 and 7

(3+7)/2= 10/2 = 5

2- Find the difference btween the mid value (5) and any of the two given numbers (3 or 7). Use the absolute value for the difference.

|5-3|= 2 or |7-5|=2

3- Arrange the absolute equation like this:

|x-mid value from step 1|= absolute difference from step 2

|x-5|=2

4- Double check the answer with the given values 3 and 7 using our equation |x-5|=2

|3-5|=2 correct

|7-5|=2 correct

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2 years ago

Which of these equations have no solution? Check all that apply.

Llana [10]

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3 0

2 years ago

Read 2 more answers

What are the measures of the angles in the triangle? (6x + 10) (x + 17) (4x - 34)

REY [17]

I'm not quite sure these are right. You might wanna check with a classmate or something first.

Step-by-step explanation:

(6x + 10) + (x + 17) + (4x - 34) = 180

11x - 7 = 180

11x = 173

x = 15.73 (answer had repeating decimal so i rounded up in the hundredths place)

(6x + 10)

6 (15.73) + 10

94.38 + 10

104.38

(x + 17)

(15.73) + 17

32.73

(4x - 34)

4(15.73) - 34

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7 0

2 years ago

A football field measures 300 feet in length. It can also be expressed as approximately

Mariana [72]

Answer: n=-2

Step-by-step explanation:

Given

The length of the football field is $300\ ft$

In the mile, it can be expressed as $5.7\times 10^n\ mile$

Also, $5280\ ft=1\ mile$ or

$1\ ft=\dfrac{1}{5280}\ miles\\\\1\ ft=1.893\times 10^{-4}\ miles$

converting $300\ ft$ to miles

$\Rightarrow 300\times 1.893\times 10^{-4}\\\Rightarrow 5.68\times 10^{-2}\approx 5.7\times 10^{-2}$

Comparing it with the given value $5.7\times 10^n\ mile$

we get $n=-2$

3 0

2 years ago

F (X) = x² - 2x and 6(x) = 3x+1

spin [16.1K]

Answer: See bolded below

Step-by-step explanation:

With the given f(x) and g(x) given, we can directly plug them in to solve. The inverse is to replace the y with x and x with y, then solve for y.

A. f(g(-4))=143

g(-4)=3(-4)+1

g(-4)=-12+1

g(-4)=-11

With g(-4), we plug that into f(x) to find f(g(-4)).

f(-11)=(-11)²-2(-11)

f(-11)=121+22

f(-11)=143

------------------------------------------------------------------------------------

B. 9x²-1

(3x+1)²-2(3x+1)

(9x²+6x+1)-6x-2

9x²-1

------------------------------------------------------------------------------------

C. g⁻¹(x)=(x-1)/3

x=3y+1

x-1=3y

(x-1)/3=y

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3 years ago