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Stella [2.4K]
4 years ago
5

(7x^2 - x - 2) - ( -6x^3 + 3)

Mathematics
1 answer:
julsineya [31]4 years ago
8 0
7x^2 + -x + -2 + 6x^2 + - 3

6x^3 + 7x^2 – x – 5

Your answer is A: 6x^3 + 7x^2 – x – 5
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The base of a ladder is placed 5 feet away from a 13 foot tall wall. What is the minimum length ladder needed to reach the top o
zimovet [89]
Apply the Pythagorean theorem

a^2 + b^2 = c^2

a = 5, b = 13.

5^2 = 25, 13^2 = 169

25 + 169 = 194

square root 194 = 13.928, rounded to nearest foot = 14 ft. 

The minimum ladder length required to reach the top of the wall = 14 ft. 
  
Download docx
4 0
3 years ago
Read 2 more answers
What is 7/8 of 10 in a mathematical form
Gelneren [198K]

Answer:

\frac{7}{8}  \times 10

3 0
4 years ago
If 1/8 of a gallon of milk is shared equally between 6 friends, how much milk will each friend have?
Mamont248 [21]

Answer:

1/48 gallon of milk

Step-by-step explanation:

1/8 divided by 6 is equal to 1/8 x 1/6 because of keep, change, flip.

Keep the first number 1/8

Change the sign dividing turns into multiplying

Flip the number 6= 6/1 so flipping it turns it into 1/6

1/8 x 1/6 = 1/48

5 0
4 years ago
5
givi [52]

Answer:

Step-by-step explanation:

4 0
3 years ago
3. A prop for the theater club’s play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round
Tanzania [10]
1. To solve this problem you must sum the volume of the cone and the volume of the hemisphere. This means that the volumen of the prop is:

 Vt=Vc+Vh

 Vt is the volumen of the prop.
 Vc is the volumen of the cone.
 Vh is the volume of the hemisphere.

2. The volume of the cone (Vc) is:

 Vc=1/3(πr²h)

 r=9 in
 h=14 in
 π=3.14

 4. Then, you have:

 Vc=(3.14)(9 in)²(14 in)/3
 Vc=3560.76 in³/3
 Vc=1186.92

 5. The volume of the hemisphere (Vh) is:

 Vh=2/3(πr³)

 π=3.14
 r=9 in

 6. Then, you have:

 Vh=(2)(3.14)(9 in)³/3
 Vh=4578.12 in³/3
 Vh=1526.04 in³

 7. Finally, the volumen of the prop (Vt) is:

 Vt=Vc+Vh
 Vt=1186.92 in³+1526.04 in³
 Vt=2713.0 in³
<span>
 What is the volume of the prop?
</span>
 The volume of the prop is 2713.0 in³
6 0
4 years ago
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