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Ilia_Sergeevich [38]
2 years ago
14

Will mark brainlits!!!!!!!!!!!!!!!!!!! help me plz owo ASAP

Mathematics
1 answer:
Fudgin [204]2 years ago
4 0

Answer:

the area of a square with a side length of 9x  

Step-by-step explanation:

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vladimir2022 [97]
I think the answer is B.

6 0
3 years ago
Find the surface area of each figure (spheres and hemispheres)
xenn [34]

Answer:

7. 1520.53 cm²

8. 232.35 ft²

9. 706.86 m²

10. 4,156.32 mm²

11. 780.46 m²

12. 1,847.25 mi²

Step-by-step explanation:

Recall:

Surface area of sphere = 4πr²

Surface area of hemisphere = 2πr² + πr²

7. r = 11 cm

Plug in the value into the appropriate formula

Surface area of the sphere = 4*π*11² = 1520.53 cm² (nearest tenth)

8. r = ½(8.6) = 4.3 ft

Plug in the value into the appropriate formula

Surface area of the sphere = 4*π*4.3² = 232.35 ft² (nearest tenth)

9. r = ½(15) = 7.5 m

Surface area of the sphere = 4*π*7.5² = 706.86 m² (nearest tenth)

10. r = ½(42) = 21 mm

Plug in the value into the formula

Surface area of hemisphere = 2*π*21² + π*21² = 2,770.88 + 1,385.44

= 4,156.32 mm²

11. r = 9.1 m

Plug in the value into the formula

Surface area of hemisphere = 2*π*9.1² + π*9.1² = 520.31 + 260.15

= 780.46 m²

12. r = 14 mi

Plug in the value into the formula

Surface area of hemisphere = 2*π*14² + π*14² = 1,231.50 + 615.75

= 1,847.25 mi²

8 0
3 years ago
Which expression is equal to 5^4 x 5^8 ? <br><br> A: 5^12<br> B: 5^4<br> C: 5^2<br> D: 5^−4
galben [10]

Something to remember is how to multiply terms with same bases, but different exponents:

a^b \cdot a^c = a^{(b+c)}


Essentially, we add the exponents.


Using the information above, we can find our answer:

5^4 \cdot 5^8 = 5^{(4+8)} = \boxed{5^{12}}


Our answer is \boxed{5^{12}}, or A.

6 0
3 years ago
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Marianna [84]

Answer:

6a) B

6b) C

6c) A

7 0
3 years ago
p: Two linear functions have different coefficients of x. q: The graphs of two functions intersect at exactly one point. Which s
miskamm [114]
The formula q \Rightarrow p means that from statement q implies statement p. 

When statements p="two linear functions have different coefficients of x" and q="the graphs of two functions intersect at exactly one point", then the statement q \Rightarrow p have a form: "If the graphs of two functions intersect at exactly one point, then two linear functions have different coefficients of x."



7 0
3 years ago
Read 2 more answers
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