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snow_tiger [21]
3 years ago
7

Please help !

Mathematics
1 answer:
Bas_tet [7]3 years ago
3 0
4p^4-25p^2=-16p^2\ \ \ \ |+16p^2\\\\4p^4-9p^2=0\\\\p^2(4p^2-9)=0\iff p^2=0\ \vee\ 4p^2-9=0\\\\p^2=0\to p=0\\\\4p^2-9=0\ \ \ |+9\\\\4p^2=9\ \ |:4\\\\p^2=\dfrac{9}{4}\to p=\pm\sqrt{\dfrac{9}{4}}\to p=-\dfrac{3}{2}\ \vee\ x=\dfrac{3}{2}

Answer: <span>A- p=0 or p=3/2 or p=-3/2</span>

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answer : Tate spending $100 to purchase virus protection will help protect his computer from Viruses that can cause Damages worth more than $100. therefore he should purchase the virus protection.

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How many cups of red paint should be added to 1 cup of white paint?​
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425 students in the 9th, 10th, and 11th grades were asked if they ride the bus to school. The results are shown in the two-way f
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The true statements are:

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  • About 32% of the students are in the 9th grade

The false statements are:

  • 64% of the students are 11th graders
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<h3>How to interpret the two-way frequency table</h3>

<u>The students that do not ride bus to school</u>

From the table, 220 students do not ride bus to school.

So, the proportion of students that do not ride bus to school is:

p=\frac{220}{425}

Simplify

p=\frac{44}{85}

Hence, this statement is true

<u>The 9th graders </u>

From the table, 134 students are 9th graders

So, the proportion of students that are 9th graders is:

p=\frac{134}{425}

Divide

p=0.315

Approximate, and represent as percentage

p=32\%

Hence, this statement is true

<u>The 11th graders </u>

From the table, 141 students are 11th graders

So, the proportion of students that are 11th graders is:

p=\frac{141}{425}

Divide

p=0.331

Approximate, and represent as percentage

p=33\%

Hence, this statement is false

<u>The 9th or 10th graders </u>

From the table, 134 + 150 students are 9th or 10th graders

So, the proportion of students that are 11th graders is:

p=\frac{134 + 150}{425}

p=\frac{284}{425}

Hence, this statement is false

Read more about two-way frequency table at:

brainly.com/question/16148316

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Answer:

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