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3 years ago

What is the answer to. Write a polynomial equation with integer coefficients that has the given roots, x=7 and x=-5

1 answer:

7 0

$\bf \begin{cases}
x=7\implies &x-7=0\\
x=-5\implies &x+5=0
\end{cases}\implies (x-7)(x+5)=\stackrel{original}{polynomial}
\\\\\\
x^2-2x-35=y\implies 1x^2-2x-35=y$

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If a constant of proportionality is 1/5, what would the new constant of proportionality be if the x and y axes were flipped? (an

mixas84 [53]

Answer:

5/1 or 5

Step-by-step explanation:

don't take my word for it but if i understand correctly all you have to do is flip the 1 and 5 which is called the recipicoal

8 0

3 years ago

Y is inversely proportional to V1+x. When x = 8, y = 2. Find y when x = 15.

murzikaleks [220]

Answer:

y = 1.5

Step-by-step explanation:

Given x is inversely proportional to $\sqrt{1+x}$ , then the equation relating them is

y = $\frac{k}{\sqrt{1+x} }$ ← k is the constant of proportion

To find k use the condition when x = 8, y = 2

2 = $\frac{k}{\sqrt{1+8} }$ = $\frac{k}{\sqrt{9} }$ = $\frac{k}{3}$ ( multiply both sides by 3 )

6 = k

y = $\frac{6}{\sqrt{1+x} }$ ← equation of proportion

When x = 15 , then

y = $\frac{6}{\sqrt{1+15} }$ = $\frac{6}{\sqrt{16} }$ = $\frac{6}{4}$ = $\frac{3}{2}$ = 1.5

6 0

2 years ago

Question 3 of 18

iren [92.7K]

Answer:

D. 0.74.

Step-by-step explanation:

It is a BINOMIAL trial, which means that there are only two outcomes: either success, or failure.

So, if the probability of success is 0.26, the probability of failure will be 1 - 0.26 = 0.74.

Hope this helps!

4 0

3 years ago

true or false? the incenter of a triangle is the center of the only circle that can be inscribed in it.

Genrish500 [490]

This is true, the definition of incenter is the point forming the origin of a circle within a triangle

3 0

3 years ago

Read 2 more answers

(4x+7)^2=60 how to do extracting the square root?

4vir4ik [10]

(4x + 7)² = 60
(4x + 7)(4x + 7) = 60
(4x² + 28x + 28x + 49) = 60
4x² + 56x + 49 = 60
 -49 -49
 4x² + 56x = 11
4x² + 56x - 11 = 11 - 11
4x² + 56x - 11 = 0
x = -56 +/- √(56² - 4(4)(-11))
 2(4)
x = -56 +/- √(3136 + 88)
 8
x = -56 +/- √(3174)
 8
x = -56 +/- 56.34
 8
x = -7 +/- 7.0425
x = -7 + 7.70425 x = -7 - 7.70425
x = 0.70425 x = -14.70425

8 0

3 years ago