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3 years ago

13

The names of the 30 students is miss Martinez's fifth grade class are listed in the chart below. Miss Martinez noticed that 2/5

of the students have clocks.
How many of Miss Martinez's students do not have clocks?

1 answer:

Mnenie [13.5K]3 years ago

6 0

Answer:18 or 3 fiths

Step-by-step explanation:

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;-; aaaaaaaaaaaaaaaaaaaAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Debora [2.8K]

Answer:first one is 1.5015

Second one is 39.96

Step-by-step explanation:

Just do the math homie

4 0

3 years ago

N=4; 2i and 3i are zeros <br> f(-1)=50

Nonamiya [84]

Solution:- $\text{Let f(x) be any nth degree polynomial with n=4}\\$

$\text{Given that 2i and 3i are the zeroes of f(x)}$

$\text{so (x-2i) and (x-3i) are factors of f(x)}$

$\text{Since 2i is a zero of f(x) then its conjugate -2i is also a zero of f(x)}$

$\Rightarrow(x+2i) \text{is a factor}\\\text{Similarly, conjugate of 3i is -3i is also a zero of f(x) }\\\Rightarrow(x+3i)\text{is a factor}\\\text{So , }\\f(x)=k(x-2i)(x+2i)(x-3i)(x+3i)\\=k(x^2-(2i)^2)(x^2-(3i)^2)\\=k(x^2-4i^2)(x^2-9i^2)\\=k(x^2+4)(x^2+9)\\=k(x^4+13x^2+36)\\\text{As given}\\f(-1)=50\\\Rightarrow k((-1)^4+13(-1)^2+36)=50\\\Rightarrow k(1+13+36)=50\\\Rightarrow k(50)=50\\\Rightarrow k=1\\\text{So by substituting k=1 in f(x) we get ,}\\f(x)=(x^4+13x^2+36)$

6 0

3 years ago

The perimeter of the larger rectangle is 2 meters

jenyasd209 [6]

Answer:

Step-by-step explanation:

8 0

3 years ago

Help me on this question

sleet_krkn [62]

Answer:

F.2:30 a.m.

8 revolutions= 8×90=720mn= 12h

So the sign starts from 2.30p.m.

Then the sign after 8 revolutions is 2.30 a.m.

Please give Brainliest

8 0

2 years ago

The temperature started at -10 degrees. if the temperature dropped 5 degrees and then rose 8 degrees, what would need to happen

Vsevolod [243]

Answer:

the temp. would need to rise 7 degrees

Step-by-step explanation:

6 0

3 years ago