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2 years ago

13

Solve y = x - 5 if the domain is 5

1 answer:

Lunna [17]2 years ago

6 0

If the domain is 5, you just put that five where you find an x. So,
y = 5 - 5
y = 0

Domain means those are the numbers that will be set as x's in the equation

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I need some help on these questions 2-54 Evens Please help me

KATRIN_1 [288]

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2 years ago

What are the solution of x^2-2x+17=0

ddd [48]

Answer:

<h2>x = 1 - 4i or x = 1 + 4i</h2>

Step-by-step explanation:

$x^2-2x+17=0\qquad\text{subtract 17 from both sides}\\\\x^2-2x=-17\\\\x^2-2(x)(1)=-17\qquad\text{add}\ 1^2\ \text{to both sides}\\\\x^2-2(x)(1)+1^2=-17+1^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-1)^2=-17+1\\\\(x-1)^2=-16$

$x-1=-4i\ \vee\ x-1=4i\qquad\text{add 1 to both sides}\\\\x=1-4i\ \vee\ x=1+4i$

4 0

2 years ago

Can somebody help me please! I need it done very soon!

RideAnS [48]

Answer:

2,2,3

Step-by-step explanation:

u will get 76 cans for 48 dollars

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2 years ago

If y varies inversely as x, and y = 33 when x = 7, what is the constant and what is value of y when x=11?

kow [346]

Answer:

We have that y = 21 when x = 11.

Step-by-step explanation:

We solve this question by proportions, using a rule of three.

Since they vary inversely, we apply the inverse rule of three, that is, with lateral multiplication instead of diagonal.

33 - 7

y - 11

So

$11y = 33*7$

Dividing both sides by 11

$y = 3*7 = 21$

We have that y = 21 when x = 11.

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2 years ago

Help this is due soon but i can’t figure this out. i don’t remember being taught this

svetlana [45]

Step-by-step explanation:

Given

Volume (V) = 313 in³

π = 3.14

Height (h) = 16 in

Radius (r) = ?

We know.,

Volume of cone (V)

$313 = \frac{1}{3} \pi {r}^{2}h$

$313 \times 3 = 3.14 \times 16 \times {r}^{2}$

$939 = 50.24 {r}^{2}$

$18.69 = r^{2}$

$r = \sqrt{18.69}$

r = 4.32 in

$( hope \: it \: will \: help})$

4 0

2 years ago