3 years ago

What is the range of possible sizes for side x?

Mathematics

2 answers:

svlad2 [7]3 years ago

8 0

D but with 20 more characters respectfully

oksian1 [2.3K]3 years ago

6 0

Answer: 1.48

Step-by-step explanation:

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Solve. y=x - 7 5+2y=7

lesantik [10]

Answer:

$\huge\boxed{x=8;\ y=1\to(8;\ 1)}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=x-7&(1)\\5+2y=7&(2)\end{array}\right\\\\\text{Substitute (1) to (2) and solve for x:}\\\\5+2(x-7)=7\qquad\text{use the distributive property}\\\\5+(2)(x)+(2)(-7)=7\\\\5+2x-14=7\\\\2x+(5-14)=7\\\\2x-9=7\qquad\text{add 9 to both sides}\\\\2x-9+9=7+9\\\\2x=16\qquad\text{divide both sides by 2}\\\\\dfrac{2x}{2}=\dfrac{16}{2}\\\\\boxed{x=8}$

$\text{Substitute it to (1):}\\\\y=8-7\\\\\boxed{y=1}$

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3 years ago

Read 2 more answers

In the function f (x) = = (x²-1) / (x-1), what happens if x takes the value of 1? Explain your answer.

zhenek [66]

Answer:

If x=1, then f(x)= undefined

Step-by-step explanation:

1*1=1

1-1=0

0/0

You can't divide by 0, so anything that is divided by 0 is undefined.

((1*1)-1)/(1-1)

(1-1)/(1-1)

0/0

0/0=Undefined

f(x)= undefined

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3 years ago

60 minutes is 20% of how many minutes show work on a number line

klio [65]

X=60/20% x=60/0.2 x=300

4 0

3 years ago

Solve (x + 2) (x + 3) + (x – 3) (x – 2) – 2x(x + 1) = 0 x = 5 x = 6 x = 7 x = 8

Anna11 [10]

Answer:

x = 6

Step-by-step explanation:

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3 years ago

An account earns simple interest. Find the interest earned. $700 at 3% for 4 years

earnstyle [38]

Answer:

$84

Step-by-step explanation:

Simple Interest = Interest rate*Principle*number of years

= (3÷100)*$700*4

=$84

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3 years ago