All categories

4 years ago

Can someone please help me

Mathematics

1 answer:

Nostrana [21]4 years ago

7 0

Answer:

Step-by-step explanation:

$1.\\7-\frac{2}{3}x$

You might be interested in

Please please help me with these questions. It’s urgent. I will mark BRAINLIEST.

zmey [24]

Answer:

$\large\boxed{Q1.\ \sin\theta=\dfrac{40}{41}}\\\boxed{Q2.\ 30^o}$

Step-by-step explanation:

Q1.

$\sin\theta=\dfrac{y}{r}$

$\text{We have}\\\\r=1\to(\text{radius of the unit circle}),\\\\y=\dfrac{40}{41}\to\text{from the given point}\ \left(\dfrac{9}{41},\ \dfrac{40}{41}\right)\\\\\text{Substitute:}\\\\\sin\theta=\dfrac{\frac{40}{41}}{1}=\dfrac{40}{41}$

Q2.

<em>look at the picture</em>

210° is in III Quadrant. Therefore the reference angle for θ is:

210° - 180° = 30°

8 0

3 years ago

Suppose an annuity pays 6% annual interest, compounded semi-annually. You invest in this annuity by contributing $4,500 semiannu

yaroslaw [1]

Answer:

$3240

Step-by-step explanation:

hope it is well understood

5 0

3 years ago

Can someone solve then explain the process of solving this?

lorasvet [3.4K]

Answer:

58°

Step-by-step explanation:

<h3>Angle sum property of triangle:</h3>

The sum of all angles of a triangle is 180°.

x + 69 + 55 + x + 78 = 180

x + x + 69 + 55 + 78 = 180

Combine like terms,

2x + 202 = 180

Subtract 202 from both sides,

2x = 180 - 202

2x = -22

Divide both sides by 2,

x = -22/2

x = -11

∠A = x + 69

= -11 + 69

$\sf \boxed{\angle A= 58^\circ}$

7 0

2 years ago

PLEASE HELP ME OUT LOOK AT THE IMAGE BELOW

Lelu [443]

Answer:

Let me know if you want more explanation

Step-by-step explanation:

Alright, to solve for x we need 2 angles that are congruent or equal.

I'm going to use the two we will need later. KLN and MNL

Now to find x ^^

$2x-18=x+6\\2x-18-x=x+6-x\\x-18=6\\x-18+18=6+18\\x=24$

Now we just need to plug it into each angle. I'm going to show you them separately.

$KLN=2x-18\\KLN=2(24)-18\\KLN=48-18\\KLN=30$

$MNL=4x-6\\MNL=4(24)+6\\MNL=102$

should be right now.

3 0

3 years ago

2n - 3 = 9 what does this equal

hoa [83]

Step-by-step explanation:

2n-3=9

Adding 3 to both sides, we get

2n-3+3=9+3
2n=12

Dividing both sides by 2, we get

2n/2=12/2
n=6

5 0

3 years ago

Read 2 more answers