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3 years ago

WILL GIVE THANKS, BRAINIEST, AND 5 STARS! PLEASE HELP!

Mathematics

1 answer:

tekilochka [14]3 years ago

6 0

Answer:

Step-by-step explanation:

C(n) = 5n, 0 ≤ n ≤10 You would use this formula because 6 is greater than 0 but less than 10.

C(n) = 5n, 0 ≤ n ≤10 ← You can just ignore the 0≤ n ≤10 part.

C(6) = 5(6) Input the value 6 as x.

C(6) = 30

The answer is that 6 shirts costs 30 dollars.

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Solve 2x + 12 = -4. show wrk

mel-nik [20]

2x +12=-4

2x= -4-12

2x=-16

x=-16/2

x= -8

5 0

2 years ago

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A spinner is divided into five congruent sections, numbered 1 through 5. If the arrow on the spinner is spun, what is the probab

Snowcat [4.5K]

D.2/5 because 3/5 are odd so the remaining 2 are even so 2/5 are not odd!

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4 years ago

A cake recipe called for using 6 ¼ cups of sugar before baking and another 5 ¾ cups after baking. What is the total amount of su

Mrac [35]

Answer:12 cups of sugar are needed in the recipe

Step-by-step explanation:

6 ¼ + 5 ¾ =11 4/4=12

7 0

3 years ago

Write an equation and solve for x.

Sauron [17]

Answer:

120

Step-by-step explanation:

Angles opposite to equal sides are equal .

30 + 30 + x = 180 {Angle sum property of triangle}

60 + x = 180

x = 180 - 60

x = 120

8 0

3 years ago

Find the obtuse angle between the following pair of straight lines.

ioda

Given:

$y=-2$

$y=\sqrt{3}x-1$

To find:

The obtuse angle between the given pair of straight lines.

Solution:

The slope intercept form of a line is

$y=mx+b$ ...(i)

where, m is slope and b is y-intercept.

The given equations are

$y=0x-2$

$y=\sqrt{3}x-1$

On comparing these equations with (i), we get

$m_1=0$

$m_2=\sqrt{3}$

Angle between two lines whose slopes are $m_1\text{ and }m_2$ is

$\tan \theta=\left|\dfrac{m_2-m_1}{1+m_1m_2}\right|$

Putting $m_1=0$ and $m_2=\sqrt{3}$ , we get

$\tan \theta=\left|\dfrac{\sqrt{3}-0}{1+(0)(\sqrt{3})}\right|$

$\tan \theta=\left|\dfrac{\sqrt{3}}{1+0}\right|$

$\tan \theta=\pm \sqrt{3}$

Now,

$\tan \theta= \sqrt{3}$ and $\tan \theta=-\sqrt{3}$

$\tan \theta= \tan 60^\circ$ and $\tan \theta=\tan (180^\circ-60^\circ)$

$\theta= 60^\circ$ and $\theta=120^\circ$

$120>90$ , so it is an obtuse angle and $60$ , so it is an acute angle.

Therefore, the obtuse angle between the given pair of straight lines is 120°.

6 0

3 years ago