1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nasty-shy [4]
3 years ago
14

Help me out pls & thanks

Mathematics
1 answer:
Anna [14]3 years ago
6 0

Answer:60

Step-by-step explanation:

You might be interested in
Factorise<br>3x^2+22x+35​
Butoxors [25]

Answer:(3x + 7) (x +5)

Step-by-step explanation:

4 0
3 years ago
- 9.9t = - 9.9 <br> solve for t
vampirchik [111]
T=1

Hope that helps bud!
5 0
2 years ago
Find the area of the following shape. Please show work.
Sav [38]

Answer:

Step-by-step explanation:

The area of a triangle is given by the formula:

● A = (b×h)/2

b is the base and h is the heigth.

■■■■■■■■■■■■■■■■■■■■■■■■■■

Draw the heigth. This gives you two small right triangles.

Let's focus on the right one containing 45°.

● sin 45° = h/8

● h = sin 45° × 8 = 4√(2)

■■■■■■■■■■■■■■■■■■■■■■■■■■

Replace h by its value in the area formula. The base is 17

● A = (17× 4√(2))/ 2

● A = 34√(2)

● A = 48.08

Round to the nearest unit

● A = 48

8 0
2 years ago
Read 2 more answers
4.9 how do you write it In a improper fraction?
den301095 [7]

49/10 This is the improper way

6 0
2 years ago
Read 2 more answers
Help me please :) its very hard
postnew [5]

Answer:

Answer B

Step-by-step explanation:

You need to first find the surface area of the triangular prism.

In order to do that, we need to first know the length of the base of the triangles on both side. So, I used the pythagorean theorem (a²+b²=c²) after making the triangle a right triangle by cutting it in HALF.

a²+b²=c²

a²+2.6²=3²

a²+6.76=9

Subtract 6.76 on both sides

a²=2.24

a=√2.24

a=1.49666295471

Now, we know that the base of HALF of the triangles on both sides of the prism is 1.496......

We need to MULTIPLY this by 2 to get the full length. So, the length of the bases of both triangles is 2.99332590942

The height of the triangles is 2.6

We are going to first find the area of one triangle and multiply it by 2, to get the area of both triangles.

Area of a triangle = base x height ÷ 2

2.6 x 2.99332590942= 7.78264736449

7.78264736449 ÷ 2 = 3.89132368224

3.89132368224 x 2 (because we have 2 triangles) =7.78264736449  cm squared

Now, we know the area of both triangles, but we now need to add the add the surface area of the rectangles in the net.

Area of a rectangle = length x width

We know that all of the three rectangles are equal in size, and that the length of each one of them is 15 cm. However, the width/height of each one is unknown. We will find out the height of each one by looking at the length of the base of the triangle attached to the first one. We know that because of the base of the triangles = 2.99332590942, the width of the attached rectangles are 2.99332590942. We found this using the Pythagorean theroem (look above).

15 x 2.99332590942= 44.8998886413

44.8998886413 x 3 (because we have 3 of the same rectangles)= 134.699665924 cm squared

Now, we must ADD the surface area of the rectangles AND the triangles.

7.78264736449 (triangles) + 134.699665924 (the three rectangles)= 142.482313288 cm squared.

The CLOSEST OPTION to the answer we got is ANSWER B because it is 142.8 cm squared, which is the closest to the answer we got which was 142.482313288 cm squared.

I really hope this helps :)

6 0
2 years ago
Read 2 more answers
Other questions:
  • 35 dimes out of 45 coins
    6·2 answers
  • Need helpppppp please
    13·2 answers
  • Elimination Method<br> 2x-4y=12 -x+2y=-6
    9·1 answer
  • 24+[5x12x5)-2] 21<br> Someone help me
    11·1 answer
  • Hi! Can anyone with knowledge on writing Geometry proofs help me? I need assistance with answering this question with a two colu
    14·1 answer
  • 3) 6n– 7n – 5m?n – 7n + 2m + 6mn - 7n + 2m + 6m?n
    12·1 answer
  • Solve the system of equations​
    6·1 answer
  • Two similar cones have volumes of 3970cm3 and 3100 cm3 respectively.
    7·1 answer
  • Please help ASAP I need this question answered right now please help if you can thanks to anyone that does
    9·1 answer
  • Find x. -2(6+x)=18-3x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!