All categories

3 years ago

Tom's first four test scores in his math class were 75, 75, 72, and 86.

Mathematics

1 answer:

Rudiy273 years ago

7 0

Answer: 77

Step-by-step explanation:

u add up all the numbers then divide by how many numbers there are

You might be interested in

0.7 mm to centimeters

san4es73 [151]

Answer: 0.07 centimeters

Step-by-step explanation: 0.7millimeters equals 0.07 centimeters

8 0

3 years ago

Jamie has8/10 of a candy bar left over. He wants to split it into 1/3 pieces. How many 1/3 pieces can he make?

gtnhenbr [62]

You would have 24 1/3 pieces.

5 0

3 years ago

Read 2 more answers

The math team does practice drills that each last 1/6 hour. In February the team did practice drills for a total of 24 hours. Ho

kozerog [31]

144 classes. each class is 10 minutes. 6X24= 144

7 0

4 years ago

Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers

slamgirl [31]

Answer:

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

Step-by-step explanation:

Let be $\vec u = (2,-3)$ , its unit vector is determined by following expression:

$\hat {u} = \frac{\vec u}{\|\vec u \|}$

Where $\|\vec u \|$ is the norm of $\vec u$ , which is found by Pythagorean Theorem:

$\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}$

$\|\vec u\| = \sqrt{13}$

Then, the unit vector is:

$\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)$

$\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

6 0

3 years ago

6+6y=-30 solve for y

kakasveta [241]

Answer:

y = -6

Step-by-step explanation:

6 + 6y = -30

6y = -30 - 6

6y = -36

y = -6

7 0

3 years ago