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3 years ago

Here is the next one

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

5 0

Answer:

15 students per teacher

10 students per tutor

11 tutors

Step-by-step explanation:

75/5=15

60/6=10

110/10=11

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Evaluate the expression -2+49 ÷ (-7)

Viktor [21]

Answer: It should equal this ,-2+49÷(-7)=-9 !

Step-by-step explanation:

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3 years ago

Please help me: A cereal company fills boxes with 16 ounces of cereal. The acceptable percent error in filling a box is 2.5%. Fi

bagirrra123 [75]

16.4 would be the greatest and 15.6 would be the least due to 2.5% equaling 0.4 and adding and subtracting it from 16.

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4 years ago

Consider this equation. cos(theta) = (-2√5)/5. If theta is an angle in quadrant II, what is the value of sin(theta)? NO LINKS!!!

vlada-n [284]

In second quadrant sin and cosec are positive

$\\ \tt\hookrightarrow sin^2\theta=1-cos^2\theta$

$\\ \tt\hookrightarrow sin^2\theta=1-(\dfrac{-2\sqrt{5}}{5})^2$

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3 years ago

Please help!! thank you.

Zina [86]

(A) Product of $-2x^{3}+x-5$ and $x^{3}-3x-4$ is:

$(-2x^{3}+x-5)(x^{3}-3x-4)$

$=-2x^{3}(x^{3}-3x-4)+x(x^{3}-3x-4)-5(x^{3}-3x-4)$

$=(-2x^{3})(x^{3})+(-2x^{3})(-3x)+(-2x^{3})(-4)+x(x^{3})+(x)(-3x)+(x)(-4)+(-5)(x^{3})+(-5)(-3x)+(-5)(-4)$

$=-2x^{6}+6x^{4}+8x^{3}+x^{4}-3x^{2}-4x-5x^{3}+15x+20$

$=-2x^{6}+6x^{4}+x^{4}+ 8x^{3}-5x^{3}-3x^{2}-4x+15x+20$

$=-2x^{6}+7x^{4}+3x^{3}-3x^{2}+11x+20$

(B) Yes.

Product of $-2x^{3}+x-5$ and $x^{3}-3x-4$ = Product of $x^{3}-3x-4$ and $-2x^{3}+x-5$ because multiplication is commutative.

Commutative Property of multiplication says that a.b = b.a.

Thus, multiplication is same irrespective of the order of two numbers.

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4 years ago

I WILL GIVE YOU BRAINLIEST IF SOMEONE ANSWERS THIS QUESTION!!!!!

galben [10]

Answer:

I say Mean.

Step-by-step explanation:

Mean (Average): 23

Mode(most common): 21

Median(Middle): 21

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3 years ago