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Nat2105 [25]
3 years ago
8

Dave builds a wheelchair ramp with 1 metre of wood. He wants the vertical height of the ramp to be 50 centimetres. What does the

angle of elevation need to be?
Mathematics
1 answer:
Yakvenalex [24]3 years ago
7 0

Answer:

\theta=30^{o}

Step-by-step explanation:

1 m is 100 cm

The hypotenuse is 100 cm and the opposite side is 50 cm

sin \theta=\frac {50}{100}

\theta=30^{o}

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Mr. Hawkins is covering a wall with
Jet001 [13]

14 x 12 = 168

168 divded by 2.90 = 57.9

6 0
3 years ago
Read 2 more answers
Jenna sold 63 bracelets at one craft show and 36 and another which expression correctly applies the distributive property to sho
aev [14]

Answer:

C . 63 + 36 = 9(7 + 4)

Step-by-step explanation:

Jenna sold 63 bracelets at one craft fair and 36 bracelets at a second craft fair. Which expression correctly applies the distributive property to show equivalent expressions for the total number of bracelets she sold?

63 + 36 = (3)(21) + (9)(4)

63 + 36 = (7)(9) + (12)(3)

63 + 36 = 9(7 + 4)

63 + 36 = 3(21 + 9)

To “distribute” means to divide something or give a share or part of something.

According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

To determine the distributive property to show equivalent expression, find the common factors of 63 and 36

63 = 3, 7, 9, 21,

36 = 2, 3, 4, 6, 9, 12, 18,

Common factors of 63 and 36 are 3 and 9

Using 3

3(21 + 12)

Using 9

9(7 + 4)

3(21 + 12) is not one of the options, therefore, 9(7 + 4) is the answer

Option C gives the distributive property

63 + 36 = 9(7 + 4)

63 + 36 = 63 + 36

3 0
2 years ago
The school cafeteria is holding an election for students to vote on which items they would like to see on the lunch menu. The ch
d1i1m1o1n [39]
There are two choices to choose from:

a) Grilled chicken
b) Veggie Pizza

36% students voted for veggie pizza. This means the remaining votes will go to the Grilled chicken. Thus grilled chicken received 64% of the student votes.

Since more students voted for the Grilled chicken, it will be on the lunch menu. 
3 0
3 years ago
The legs of a isosceles triangle are 0.3 foot less then twice the base . The perimeter of the triangle is 4.9 feet .
kicyunya [14]
<h2>Greetings!</h2>

Answer:

The legs are 1.9 feet long

And the base is 1.1 feet long.

Step-by-step explanation:

Firstly, you need to find the value of x.

You need to add all the sides together:

2x - 0.3 + 2x - 0.3 + x

Simplified =

5x - 0.6

And this equals 4.9:

5x - 0.6 = 4.9

Next, you need to move the -0.6 over to the other side, making sure to make it a positive:

5x = 4.9 + 0.6

5x = 5.5

Now divide each side by 5:

\frac{5x}{5} = \frac{5.5}{5}

x = 1.1


As the image is unclear of what side you are finding the length of:

2x - 0.3 = 1.9 feet long

And the base is 1.1 feet long.


<h2>Hope this helps!</h2>
4 0
3 years ago
Read 2 more answers
A rectangle has an area of 7x^2 - 20x - 3. Find the length and width of the rectangle.
sertanlavr [38]

Answer:

(−3)(7+1)

Step-by-step explanation:

5 0
2 years ago
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