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kherson [118]
3 years ago
8

12 m 15 m 8 m 5 m 5 m

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
6 0

Answer:

nhkjcxkvcsvlsjvls

Step-by-step explanation:

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I need help with this question
postnew [5]

Answer:

61 cm for each book shelf.  

Step-by-step explanation:

First it gives you the width of the boxes so you add them together

132 + 108 + 94 = 334

so 334 cm has already been used out of 456 cm.  

Next you will 456 - 334 = 122 cm left over

if they are building 2 book cases you with take what cm's you have left and divide it by 2

122 / 2 = 61

So that means each book case will be 61 cm's wide

7 0
4 years ago
Solve for x.<br><br> x+2/3=−1/6<br><br> Please help I'll give brainliest
Darya [45]

Answer:

The answer is

x=-5/6

6 0
3 years ago
From a point on the ground that is 120 feet from the base of a vertical tree, the angle of elevation to the top of the tree is 3
andriy [413]

Answer:

\boxed {\boxed {\sf 69.28 \ feet}}

Step-by-step explanation:

Assuming that the tree is perpendicular with the ground, we can use trigonometric ratios to find the height of the tree.

First, let's draw a diagram. From the point on the ground to the base, it is 120 feet and forms a 30 degree angle. We want to find the height of the tree, which is labeled h. (The diagram is attached and not to scale).

Next, recall the ratios.

  • sin(θ)= opposite/hypotenuse
  • cos(θ)= adjacent/hypotenuse
  • tan(θ)= opposite/adjacent

We see that the height is opposite the 30 degree angle and 120 is adjacent.

  • opposite=h
  • adjacent=120

Since we are given opposite and adjacent, we must use tangent.

tan ({\theta)=\frac{opposite}{adjacent}

Substitute the values in.

tan(30)=\frac{h}{120}

We are solving for h, so we must isolate it. It is being divided by 120 and the inverse of division is multiplication. Multiply both sides by 120.

120*tan(30)=\frac{h}{120}*120

120*tan(30)=h

120*0.5773502692=h

69.2820323=h

Round to the hundredth place (2 decimal places). The 2 in the thousandth place tells us to leave the 8 in the hundredth place.

69.28 \approx h

The height of the tree is about <u>69.28 feet.</u>

5 0
3 years ago
Welp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Radda [10]

Answer:

First and last one

Step-by-step explanation:

You have to use Pythagoras. Square the first two numbers (smallest) and then add them together. Square root the answer and if it gives you the largest number in the set, it‘s right

Hope this helps!

anymore questions let me know :)

8 0
3 years ago
Combine the like terms to create an equivalent expression:<br> -k-(-8k)
Gelneren [198K]
-k+8k
7k. Is the answer
6 0
3 years ago
Read 2 more answers
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