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Anastaziya [24]
3 years ago
9

On a piece of paper, use a protractor to construct right triangle DEF with DE=4 in. , m∠D=90° , and m∠E=45° . What statement is

true about the triangle
A:DF=2IN
B:EF=7IN
C:EF=4IN
D:DF=4IN
Mathematics
1 answer:
Makovka662 [10]3 years ago
3 0
I think the second one hope this helps
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Can you please help me with this question it is confusing for me.
vova2212 [387]
75/15=5 so the answer would be 5 months
5 0
3 years ago
You wish to estimate a population proportion with a confidence interval with a margin of error no larger than 0.03. You have a b
NikAS [45]

Answer:

The answer is 0.8788

Step-by-step explanation:

<em>From question given, let us recall the following:</em>

<em>We know that  Ƶα /2  * √p (1-p)/n</em>

<em>when we use  n≤  5000/10 =500</em>

<em> P = 0.75</em>

<em>The Margin of error = 0.03</em>

<em>Putting this values together we arrive at </em>

<em> Ƶα/2 = 0.03/√0.75 * 0.25/500 </em>

<em>= 1.549</em>

<em>Now,</em>

<em>Ф (1.549) = 0.9394</em>

<em>Therefore the confidence level becomes:</em>

<em> 1- (1-∝)/2 = 0.9394</em>

<em>∝ = 0.8788</em>

<em>The answer is 0.8788</em>

<em />

8 0
3 years ago
Simplify. 3.3÷(0.8−3)−0.5 Enter your answer in the box.
Veseljchak [2.6K]

Answer:

-2

Step-by-step explanation:

3.3÷(0.8−3)−0.5

First think of PEMDAS

So first do parenthese

(0.8-3)=-2.2

3.3÷-2.2-0.5

Now do division

3.3/-2.2=-1.5

and now subtraction

-1.5-0.5=-2


6 0
3 years ago
Read 2 more answers
If f(x) = 3x²+2 and g(x)=x2-9, find (f- g)(x).
Solnce55 [7]

Answer:

Step-by-step explanation:

Depending on whether or not the g(x) is x^2 or 2x, I have both ways.

If g(x) is x^2 - 9...

--> (3x^2 + 2) - (x^2 - 9) = 2x^2 + 11

If g(x) is 2x...

--> (3x^2 + 2) - (2x - 9) = 3x^2 - 2x + 11

Hope this helps!

4 0
2 years ago
Simplify (4x − 6) − (3x + 6).
antiseptic1488 [7]

the answer is the first one A


8 0
3 years ago
Read 2 more answers
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