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kow [346]
3 years ago
12

I need help plz my mom is making me do more questions and I need to check them.

Mathematics
2 answers:
Nesterboy [21]3 years ago
7 0
The second one would be 80 square feet. It would be that because square feet is used in area, meaning twice. Multiply 24x2 and 16x2. It would be 48 and 32. When adding them you will get 80.
yuradex [85]3 years ago
4 0
Perimeter of square = 4s perimiter of pentagon= 5s, i guess? its a regular one afterall 4s = P 4 (10) = p 40 = P (40 = 5s)/ 5 8 = s


Sorry I dont know how to answer the second one...

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A line has a zero slope and
kipiarov [429]
Hello here is a solution : 
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a = 0
passes through the point (-5, 4) : 4 =0(-5)+b
b= 4
equation for the line is : y =4

3 0
4 years ago
The base area of a triangular pyramid is 22 square yards and the height of the pyramid is 15 yards. What is the volume of the tr
galben [10]

Answer:

110 yards^3

Step-by-step explanation:

volume of a  triangular pyramid=  1/3 area x height

1/3 x (22) x 15 = 110 yd^3

7 0
3 years ago
The surface area of a right cone is 400.2 m2. The radius of the cone is 6.0 m. Determine the height of the cone to the nearest m
svetoff [14.1K]
                 S = πr(r + √(h² + r²))
          400.2 = 3.14(6)(6 + √(h² + 6²))
          400.2 = 18.84(6 + √(h² + 36))
          18.84                 18.84
        21¹⁰⁹/₄₇₁ = 6 + √(h² + 36))
        - 6         - 6
        15¹⁰⁹/₄₇₁ = √(h² + 36)
231²²¹⁰⁰⁵/₂₂₁₈₄₁ = h² + 36
- 36                       - 36
195²²¹⁰⁰⁵/₂₂₁₈₄₁ = h²
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8 0
3 years ago
The force in Newtons acting on a particle located x meters from the origin is given by the function F(x)=12x2+7. What is the wor
Shkiper50 [21]

W = \displaystyle \int^{5}_{2}   F(x) ~ dx\\\\\\= \displaystyle \int^{5}_{2} \left(12x^2 +7\right) ~dx\\\\\\= 12\displaystyle \int^{5}_{2} x^2 ~dx + \displaystyle \int^{5}_{2} 7~ dx\\\\\\=12 \left[\dfrac{x^3}3 \right]^{5}_{2}  + 7\left[x\right]^{5}_{2}\\\\\\=4(5^3-2^3) + 7(5-2) = 468 + 21 = 489~ J

5 0
2 years ago
How do I solve this?<br><br> x/3 + x^2 + 2x^2 - x/3
Anna11 [10]

Answer:

3x²

Step-by-step explanation:

\frac{x}{3}  + x^{2} +2x^{2} -\frac{x}{3} =

x^{2} +2x^{2} =

3x^{2}

3 0
2 years ago
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