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2 years ago

Please solve part h you have to find thr value of x

Mathematics

1 answer:

Minchanka [31]2 years ago

4 0

Answer:

x=301

Step-by-step explanation:

first thing you must know the sum of angle

for this question the polygon has 6 sides (if you connect B and D)

so based on formula (n-2)×180; n is number of side

(6-2)×180=720

so the sum of angle in the polygon is 720

to find x you just need to subtract 720 with all the angle given in the diagram. (and don't forget the 90 degree that made from connected line B and D)

x=720-118-87-34-90-90

x=301

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Container 85g contents 370g total mass=

777dan777 [17]

So the container is 85 g or it holds 85gs

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2 years ago

Question 15 (5 points)<br> Find the angle between u = <7, -2> and v= (-1,2>.

Tema [17]

Answer:

Approximately $2.3127$ radians, which is approximately $132.51^{\circ}$ .

Step-by-step explanation:

Dot product between the two vectors:

$\begin{aligned}& u\cdot v \\ =\; & 7 \times (-1) + (-2) \times 2 \\ =\; & (-11) \end{aligned}$ .

Magnitude of the two vectors:

$\begin{aligned} \| u \| &= \sqrt{{7}^{2} + {(-2)}^{2}} \\ &= \sqrt{53} \end{aligned}$ .

$\begin{aligned} \| v \| &= \sqrt{{(-1)}^{2} + {2}^{2}} \\ &= \sqrt{5} \end{aligned}$ .

Let $\theta$ denote the angle between these two vectors. By the property of dot products:

$\begin{aligned} \cos(\theta) &= \frac{u \cdot v}{\|u\| \, \| v \|} \\ &= \frac{(-11)}{(\sqrt{53})\, (\sqrt{5})} \\ &= \frac{(-11)}{\sqrt{265}}\end{aligned}$ .

Apply the inverse cosine function ${\rm arccos}$ to find the value of this angle:

$\begin{aligned} \theta &= \arccos\left(\frac{u \cdot v}{\| u \| \, \| v \|}\right) \\ &= \arccos\left(\frac{(-11)}{\sqrt{265}}\right) \\ & \approx \text{$2.3127$ radians} \\ &= 2.3127 \times \frac{180^{\circ}}{\pi} \\ &\approx 132.51^{\circ}\end{aligned}$ .

8 0

2 years ago

Mr. Toshi's fifth grade class sold

kozerog [31]

Answer:

775

Step-by-step explanation:

If each day you subtract 25 you will get 200,175,125,275.. if you add them all together you'd get 775.

3 0

2 years ago

I NEEDS HELP WITH THIS

Crank

Answer:

you answer will be ∠JKH=129°

Step-by-step explanation:

hope it helps..

have a great day!!

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2 years ago

Given the 8-sided figure below with exterior angle measures as shown, what is the value of

ANEK [815]

Answer:

I believe the answer would be 55 degrees.

Step-by-step explanation:

Add together all the given angles then subtract that total from 360.

6 0

2 years ago