Ask question

Ask question

All categories

sertanlavr [38]

3 years ago

14

A chorus director surveys students about singing and reading music. The results of the survey are shown in the relative frequenc

y table.

1 answer:

Alika [10]3 years ago

6 0

True
True
True I think but not sure

You might be interested in

What is the value of cos A?

BlackZzzverrR [31]

Step-by-step explanation:

h²=p²+b²
h²=24²+7²
h²=576+49
h=√625
h=25

tanA=p/h

24/25

its yr ans

hope it helps.

<h2>stay safe healthy and happy....</h2>

3 0

3 years ago

What is the product of all constants $k$ such that the quadratic $x^2 + kx +15$ can be factored in the form $(x+a)(x+b)$, where

Setler79 [48]

Answer:

$k=-16,k=-8,k=8,k=16$

Step-by-step explanation:

We are given quadratic equations as

$x^2+kx+15$

and it can be factored as

$=(x+a)(x+b)$

now, we can multiply factor term

$(x+a)(x+b)=x^2+(a+b)x+ab$

now, we can compare

$x^2+(a+b)x+ab=x^2+kx+15$

so, we get

$k=a+b$

$ab=15$

we are given that

'a' and 'b' are integers

so, we can find all possible factors

$15=(-1\times -15),(1\times 15)$

$15=(-3\times -5),(3\times 5)$

so, we can find k

At $(-1\times -15)$ :

$k=a+b$

we can plug values

$k=-1-15$

$k=-16$

At $(1\times 15)$ :

$k=a+b$

we can plug values

$k=1+15$

$k=16$

At $(-3\times -5)$ :

$k=a+b$

we can plug values

$k=-3-5$

$k=-8$

At $(3\times 5)$ :

$k=a+b$

we can plug values

$k=3+5$

$k=8$

So, values of k are

$k=-16,k=-8,k=8,k=16$

6 0

3 years ago

___ L = 240 kL ? <br><br> A. 24,000<br> B. 240,000<br> C. 0.240<br> D. 2.4

koban [17]

It's b 240000
I'm sorry if wrong I'm not too good at these things

6 0

3 years ago

Read 2 more answers

g100num [7]

Answer:

Step-by-step explanation:

$tan^{-1} (\frac{\sqrt{3} }{3} )=x\\tan x=\frac{\sqrt{3} }{3} =tan (\frac{\pi}{6} )\\x=\frac{\pi}{6}$

7 0

3 years ago

Rewrite the expression in the form x^n x^6/x^8

Vsevolod [243]

Please answer please please thank you thank goodness

7 0

3 years ago