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igomit [66]
2 years ago
10

Solve for xx. Round to the nearest tenth of a degree, if necessary.

Mathematics
1 answer:
Oliga [24]2 years ago
7 0

Answer:

62.7°

Step-by-step explanation:

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If a= (-1,-3) and b= (11,8), what is the length of AB?
Margarita [4]

Answer:

4.80 units (3 s.f.)

Step-by-step explanation:

distance \: formula \\  =  \sqrt{(x1 - x2)^{2}+ (y1 - y2)^{2} }

Hence, length of AB

= √(11+1)^2 - (8+3)^2

= √ 12^2 -11^2

= √ 23

= 4.80 units (3 s.f.)

6 0
3 years ago
Put brackets in the calculation below to make it correct.<br><br> 15 - 4 x 2 + 1 = 3
bagirrra123 [75]
If you put brackets around (2+1), your method of working is: 
1) 15-4*(2+1)=3 
2) 15-4*3=3
3) 15-12=3
You don't need any more brackets, as the BIDMAS (brackets, Indices, division, multiplication, addition, subtraction) rule does the rest of the job for you. 
The answer is therefore: 15-4*(2+1)=3
3 0
2 years ago
The figure below is a square. Find the length of side x in simplest radical form with a
Leokris [45]

Answer:

\frac{\sqrt{2} }{2}

Step-by-step explanation:

45 - 45 - 90 Triangles

When one leg = x, the hypotenuse = x\sqrt{2}

So, if the hypotenuse is 1, then divide by \sqrt{2} to get the leg.

\frac{1}{\sqrt{2} }  rationalize denominator.

\frac{1}{\sqrt{2}} × \frac{\sqrt{2}}{\sqrt{2} } = \frac{\sqrt{2}}{\sqrt{2} \sqrt{2} }  =  \frac{\sqrt{2} }{\sqrt{4}} =  \frac{\sqrt{2}}{2}

3 0
2 years ago
A $1,500 loan has an annual interest rate of 4 1/4% on the amount borrowed. How much time has elapsed if the interest is now $12
g100num [7]
$127.50=1,500(0.0425)*x

$127.50 = 63.75 *x

x =  \frac{127.50}{63.75}

x = 2

2 years elapsed.

hope this helps!


6 0
3 years ago
Read 2 more answers
Simplify 4√6 / √30. HELP. SHOW WORK<br><br><br><br> PLEASE HELP
kari74 [83]
4√6÷√30= 4√5/5, or ≈1.788854382
8 0
3 years ago
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