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tensa zangetsu [6.8K]
3 years ago
8

Do these side lengths make a right triangle? 2.1, 7.2, 7.5

Mathematics
1 answer:
mariarad [96]3 years ago
6 0

Answer:Yes

Step-by-step explanation:

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Which of the following fractions give a decimal answer whose non-zero digits repeat infinitely many times? Select all that apply
blagie [28]

Answer:

B and E repeat infinitely.

Step-by-step explanation:

A) 6/4  = 1.5 (ends)

B) 4/11  ≈ 0.36363636...  (repeats 36 forever)

C) 9/8  = 1.125 (ends)

D) 5/7  ≈ 0.7143  (does not repeat)

E) 8/9  ≈ 0.88888888...  (repeats 8 forever)

F) 7/8 = 0.875  (ends)

7 0
3 years ago
What are the solutions of the equation x4 – 9x2 + 8 = 0? Use u substitution to solve.
rosijanka [135]

Answer:

Option (2)

Step-by-step explanation:

Given equation is,

x⁴- 9x² + 8 = 0

Let x² = t

By substituting the value of x²= t in the equation,

t² - 9t + 8 = 0

t² - 8t - t + 8 = 0

t(t - 8) - 1(t - 8) = 0

(t - 1)(t - 8) = 0

(t - 1) = 0 ⇒ t = 1

(t - 8) = 0 ⇒ t = 8

Since, t = x²

x² = 1 ⇒ x = ±1

x² = 8 ⇒ x = ±2√2

Therefore, Option (2) will be the correct option.

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!! Chloe stops for lunch in a town that has no meal tax. She has $20 and tips 15%. Select all the prices of meals
lord [1]

Answer:

$16.25 $15.95 $15.75

Step-by-step explanation:

because a 15% tip is $3.00

4 0
3 years ago
Consider the quadratic function f(x)=8x2−7x+6. What is the constant of the function?
PtichkaEL [24]
6
The 6 is the constant because it is never going to change
f(x), and others that contain x will change based on the value x
Since 6 doesn’t have the c with it it will be constant
6 0
3 years ago
Read 2 more answers
I need help on the first 2
Aleksandr [31]
With what? Questions?
6 0
3 years ago
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