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mojhsa [17]
3 years ago
7

I need help with my homework can anyone help me please?

Mathematics
2 answers:
alisha [4.7K]3 years ago
7 0

Answer:

For 14 from left to right should be 11 10 10 9 8 6. For 15 is wrong because 4 people jumped 3 feet and 3 people jumped 4 feet

vladimir1956 [14]3 years ago
4 0
Number 15: Nate is wrong because there are four people who jumped three feet and there are only three people who jumped four feet. Nate probably got confused because four feet has a larger font than three feet.
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Factor 4x^4+7x^2-2=0
natulia [17]

Answer:

(2x-1)(2x+1)(x^2+2) = 0

Step-by-step explanation:

Here's a trick:  Use a temporary substitution for x^2.  Let p = x^2.  Then 4x^4+7x^2-2=0 becomes 4p^2 + 7p - 2 = 0.  

Find p using the quadratic formula:  a = 4, b = 7 and c = -2.  Then the discriminant is b^2-4ac, or (7)^2-4(4)(-2), or 49+32, or 81.  

Then the roots are:

       -7 plus or minus √81

p=   --------------------------------

                        8

p = 2/8 = 1/4 and p = -16/8 = -2.

Recalling that p = x^2, we let p = x^2 = 1/4, finding that x = plus or minus 1/2.  We cannot do quite the same thing with the factor p= -2 because the roots would be complex.

If x = 1/2 is a root, then 2x - 1 is a factor.  If x = -1/2 is a root, then 2x+1 is a factor.  

Let's multiply these two factors, (2x-1) and (2x+1), together, obtaining 4x^2 - 1.  Let's divide this 4x^2 - 1 into 4x^4+7x^2-2=0.  We get x^2+2 as quotient.

Then, 4x^4+7x^2-2=0 in factored form, is (2x-1)(2x+1)(x^2+2) = 0.

6 0
3 years ago
Describe a measurement on your body that is 1 millimeter wide???
Irina18 [472]

I know this is a stretch, but maybe the thickness of a nail?

7 0
3 years ago
PLEASEEE HELP OMGG !! THANK U IF YOU DO
Nataly_w [17]

Answer: G I would say would be the correct answer! Good luck

Step-by-step explanation:

5 0
2 years ago
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If the age of person A is 7 years more than that of person B and the sum of there ages is 25 years old how old is person A ? (Br
adelina 88 [10]

Answer:

16

Step-by-step explanation:

9+16 = 25   9+ 7 = 16

8 0
3 years ago
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Write using exponential notation?<br> 5.5.2.2.2.2
inna [77]

Answer:

5 ^{2}  \times 2^{4}

Step-by-step explanation:

Multiplying 5 by itself is the same thing as raising it to the second power:

5 \times 5 = {5}^{2}  = 25

We multiply 2 by itself two seperate times. That's the same thing as raising 2 to the second power to the second power or in simpler terms raising two to the fourth power:

2 \times 2 \times 2 \times 2 = {({2}^{2})}^{2}  =  {2}^{4}  = 16

Since only multiplication is present, we can combine the two terms to get:

5^{2}  \times  {2}^{4}

4 0
2 years ago
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