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Marianna [84]
3 years ago
7

Simplify. 1/4+4(1/2−3/4)^2 Enter your answer in the box.

Mathematics
1 answer:
ale4655 [162]3 years ago
3 0
The Simplest form is \frac{1}{2}


\frac{1}{4} +4(\frac{1}{2} - \frac{3}{4})^{2}   PEMDAS

\frac{1}{4}+4(-\frac{1}{4})^{2}                       Subtract inside parenthesis \frac{1}{2} - \frac{3}{4} =- \frac{1}{4}

\frac{1}{4}+4( \frac{1}{16})                            Square - \frac{1}{4}                       

\frac{1}{4} + \frac{1}{4}                                 Multiply 4 and \frac{1}{16}                        

\frac{1}{2}                                                       Add \frac{1}{4} + \frac{1}{4}

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33 34 and 35 please help
Kryger [21]

first you have to find the triangle, then you can move to the actual question.

x+30+80 = 180

x+110 = 180

x+110 - 110 = 180-110

x =70

now you can go to the actual question.

y + 70 = 180

y+70- 70 = 180-70

y = 110

there is your answer. hope this is helpful

7 0
4 years ago
E true.
katovenus [111]

I'm not sure where it starts and ends

5 0
3 years ago
Perform the following operations and write the answers in radical form. Part A:√7+√3+√98−√18 Part B:3√5−3√11+2√121−3√90
Sveta_85 [38]

Answer:

  1. \sqrt{7}+\sqrt{3}+4\sqrt{2}
  2. 3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}

Step-by-step explanation:

Part A ;

\sqrt{7} +\sqrt{3} +\sqrt{98} -\sqrt{18} \\\\\sqrt{98}=7\sqrt{2}\\\sqrt{18}=3\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+7\sqrt{2}-3\sqrt{2}\\\\\mathrm{Add\:similar\:elements:}\:7\sqrt{2}-3\sqrt{2}=4\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+4\sqrt{2}

Part B ;

3\sqrt{5}  - 3\sqrt{11} + 2\sqrt{121} -3\sqrt{90} \\\\2\sqrt{121}=22\\3\sqrt{90}=9\sqrt{10}\\\\=3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}

8 0
3 years ago
If f(x) = x^3 – 2x^2, which expression is equivalent to f(i)?
arsen [322]
I=√-1 and all the steps are there

6 0
4 years ago
Read 2 more answers
A sound wave travels at 330m/s and has a wavelength of 2 m. calculate its frequency and period.
RoseWind [281]

Answer:

frequency= 165Hz

period= \frac{1}{165}

Step-by-step explanation:

1. To calculate the frequency using the formula:

f = v/λ

where,

f=frequency (what the question asked)

v=speed of wave (given in the question=330m/s)

λ=wavelength (given in the question=2m)

SO,

f=\frac{330}{2}

= 165Hz

2. To calculate the period use the formula:

since f=\frac{1}{T}

therefore, T=\frac{1}{f}

where,

f= frequency (what we solved above=165Hz)

T= period (what the question asked)

SO,

T=\frac{1}{165}

4 0
2 years ago
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