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AveGali [126]
4 years ago
6

A couple wants to install a square mirror that has an area 500 in.². To the nearest 10th of an inch what length of wood trim is

need to go around the mirror
Mathematics
1 answer:
Alenkinab [10]4 years ago
7 0
S·S=500. S²=500. S=√500. S=22.36. 22.4 inches for 1 side, 22.4(4)=89.6, 89.6 for all 4 :)
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Two similar triangles ABC and PQR are shown
PolarNik [594]

Answer:

i think it's c:r

3 0
3 years ago
Find the equation of the parable in general form by completing the square. Then, state its vertex
lora16 [44]
The parabola will show the vertex in the format: y-k = (x-h)^2, where the vertex point
lies at (h, k).
so \: for \:  {x}^{2}  + 2x - y + 3 = 0
let's first put it in "y =" standard format:
y =  {x}^{2}  + 2x + 3
Since we cannot get a perfect square out of this, we complete the square: a=1, b=2, c=3
(b/2)^2 = (2/2)^2 = 1, so
y =  {(x +1)}^{2} ...\: is \: y =  {x}^{2}  + 2x + 1
So there's +2 leftover, since 3-1=2; so:
y =  {(x + 1)}^{2}  + 2
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y - 2 =  {(x + 1)}^{2}
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6 0
3 years ago
I need help asap ;u;
xxTIMURxx [149]

Answer:

D. $56

Step-by-step explanation:

Sandra's taxable income is $39,250.

That amount works for range 2 ($39,250 - $39,300), so her tax is $5,944.

Sandra paid $6,000 in FWT (federal withholding tax), which is greater than $5,944, so we need the refund here.

Subtract 5,944 from 6,000 to get the refund.

6,000 - 5,944

We can go on ahead and just make this 100 - 44 (5,900 - 5,900 = 0).

100 - 44

Her refund is $56.

3 0
3 years ago
A student randomly draws a card from a standard deck and checks to see if it is his favorite suit he then returned to card to th
tensa zangetsu [6.8K]

Answer:

The binomial probability formula can not be used for this experiment because it does not state the number of times he expects to draw his favorite suit.  

Step-by-step explanation:

The binomial probability formula is expressed as follows:

P (k success in n trials) = \left \{ {{n \atop k} \right. p^{k}q^{n-k}

n = number of trials, k = number of successes, n-k = number of failures, p = probability of success in one trial and q = 1 - p = probability of failure in one trial.  

In the given problem, all of the variables are known except for 'k', the amount of times that the student predicts he will draw his favorite suit.  

8 0
4 years ago
What is the answer to this question? Please
AnnZ [28]

Answer:

y² + 8y + 16

Step-by-step explanation:

Given

(y + 4)²

= (y + 4)(y + 4)

Each term in the second parenthesis is multiplied by each term in the first parenthesis, that is

y(y + 4) + 4(y + 4) ← distribute both parenthesis

= y² + 4y + 4y + 16 ← collect like terms

= y² + 8y + 16

7 0
3 years ago
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