All categories

3 years ago

PLZ HELP ASAP RN PLZ

Mathematics

1 answer:

Ronch [10]3 years ago

5 0

I think it’s B i’m not sure though!

You might be interested in

:))))))))))))))))))))

8_murik_8 [283]

Answer:

20/5

Step-by-step explanation:

hello I'm confused so yea

4 0

2 years ago

Read 2 more answers

Raíz cuadrada de 110

lara31 [8.8K]

<span>La raíz cuadrada de 110 es aproximadamente 10.48809.
</span>
Espero que esto haya ayudado :)

6 0

3 years ago

Stan is making a trail mix that has a combination of peanuts and raisins. The mix is three parts peanuts and one part raisins.Ho

polet [3.4K]

4 cups. 3+1=4 raisins are 1/4 and 1/4 of 16 is 4

8 0

3 years ago

Read 2 more answers

What statement statement is not true is not true

Black_prince [1.1K]

C is the answer because with this kind of math the answer can be Neg or Postive <span />

5 0

3 years ago

If a = pi +3j - 7k, b = pi - pj +4k and the angle between a and is acute then the possible values for p are given by

PIT_PIT [208]

Answer:

The family of possible values for $p$ are:

$(-\infty, -4) \,\cup \,(7, +\infty)$

Step-by-step explanation:

By Linear Algebra, we can calculate the angle by definition of dot product:

$\cos \theta = \frac{\vec a\,\bullet\,\vec b}{\|\vec a\|\cdot \|\vec b\|}$ (1)

Where:

$\theta$ - Angle between vectors, in sexagesimal degrees.

$\|\vec a\|, \|\vec b \|$ - Norms of vectors $\vec {a}$ and $\vec{b}$

If $\theta$ is acute, then the cosine function is bounded between 0 a 1 and if we know that $\vec {a} = (p, 3, -7)$ and $\vec {b} = (p, -p, 4)$ , then the possible values for $p$ are:

Minimum ( $\cos \theta = 0$ )

$\frac{p^{2}-3\cdot p -28}{\sqrt{p^{2}+58}\cdot \sqrt{2\cdot p^{2}+16}} > 0$

Maximum ( $\cos \theta = 1$ )

$\frac{p^{2}-3\cdot p -28}{\sqrt{p^{2}+58}\cdot \sqrt{2\cdot p^{2}+16}} < 1$

With the help of a graphing tool we get the family of possible values for $p$ are:

$(-\infty, -4) \,\cup \,(7, +\infty)$

7 0

2 years ago