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2 years ago

8

At Midland Elementary, there are 22 students in each of seven fourth- grade classes. How many students are in fourth-grade at Mi

dland?pls help me asap

1 answer:

qwelly [4]2 years ago

7 0

154 students are in fourth grade at Midland

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Identify two ratios that are equivalent to 3:5

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The correct answer is 15:25

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3 years ago

Which expression is equivalent to (2^3)^-6?

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Answer:

2^-18

Step-by-step explanation:

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2 years ago

How to divide the area of 10X10 into 30 equal pieces

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3 years ago

Please i need your help to solve this question. I will give the brainliest.

Maksim231197 [3]

Step-by-step explanation:

The angle between vectors is given by

$\cos{\theta} = \dfrac{\vec{\textbf{a}}\cdot \vec{\textbf{b}}}{|\vec{\textbf{a}}||\vec{\textbf{b}}|}$

The magnitudes for the vectors are as follows:

$|\vec{\textbf{a}}| = \sqrt{a_x^2 + a_y^2 + a_z^2}$

$\:\:\:\:\:\:\:=\sqrt{(2)^2 +(-5)^2 + (3)^2} = 6.16$

$|\vec{\textbf{b}}| = \sqrt{b_x^2 + b_y^2 + b_z^2}$

$\:\:\:\:\:\:\:= \sqrt{(3)^2 + (1)^2 + (4)^2} = 5.10$

The dot product between the vectors is

$\vec{\textbf{a}}\cdot \vec{\textbf{b}} = (2)(3) + (-5)(1) + (3)(4) = 13$

Therefore, the angle between the two vectors is

$\cos{\theta} = \dfrac{\vec{\textbf{a}}\cdot \vec{\textbf{b}}}{|\vec{\textbf{a}}||\vec{\textbf{b}}|} = \dfrac{13}{(6.16)(5.10)}$

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3 years ago

Which of the following is a trinomial? c2 + c + 6 c2 − 16 −8c c3 + 4c2 − 12c + 7

Taya2010 [7]

Trinomial is defined as a polynomial with three terms separated by a operation (+,-).

c² + c + 6 AND c²<span> − 16 −8c are trinomials.

</span>c² + c + 6
1st term: c²
2nd term: c
3rd term: 6

c²<span> − 16 − 8c
</span>1st term: c²
2nd term: 16
3rd term: 8c

When there is only one term it is identified as monomial; two terms is identified as binomial; polynomial means many terms.

6 0

3 years ago

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