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posledela
3 years ago
7

Solve: (x + 5)^2 + 15 = 64

Mathematics
1 answer:
Anna [14]3 years ago
3 0
(x + 5)^{2} + 15 = 64   Subtract 15 from both sides
<span>(x + 5)^{2} = 49   Find the square root of both sides to cancel out the </span>(x + 5) ^{2}
x + 5 = 7   Subtract 5 from both sides
x = 2
<span>
</span>

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Exponents and roots are what operations
dalvyx [7]

Answer:

An exponent

Step-by-step explanation: So if we have 83, we want to multiply three 8s, or 8 * 8 * 8. A root is basically the opposite. We're trying to find the number that we multiply by itself a certain number of times to get the number under the radical sign.

8 0
3 years ago
Find the lateral area of the regular pyramid<br><br> L.A. =
Arisa [49]

Answer:

FOR REGULAR PYRAMID with those dimension.

L.A = 96

FOR HEXAGONAL PYRAMID with those dimension

L.A = 171.71

Step-by-step explanation:

Please the question asked for L.A of a REGULAR PYRAMID, but the figure is a HEXAGON PYRAMID.

Hence I solved for both:

FOR REGULAR PYRAMID

Lateral Area (L.A) = 1/2* p * l

Where p = Perimeter of base

P = 4s

P = 4 * 6

P = 24cm

l = slanted height

l = 8cm

L.A = 1/2 * 24 * 8

L.A = 1/2 ( 192)

L.A = 96cm ^ 2

FOR AN HEXAGONAL PYRAMID

Lateral Area = 3a √ h^2 + (3a^2) / 4

Where:

a = Base Edge = 6

h = Height = 8

L.A = 3*6 √ 8^2 + ( 3*6^2) / 4

L.A = 18 √ 64 + ( 3 * 36) / 4

L.A = 18 √ 64 + 108/4

L.A = 18 √ 64+27

L.A = 18 √ 91

L.A = 18 * 9.539

L.A = 171.71

8 0
2 years ago
Help me out here pleaseeeeeeeeee
patriot [66]
Just multiply 1/4 times 6
5 0
2 years ago
(2x7+9 to the 2 power)-10
vladimir2022 [97]

Answer:85

Step-by-step explanation:

14+81=95-10=85

7 0
3 years ago
Solve for all values of y in simplest form.<br> 10 = |y/9|
kiruha [24]

Answer: y = -90, 90

Step-by-step explanation:

     To solve this, we will isolate the variable.

 Given:

10 = |\frac{y}{9}|

 Absolute value:

10 = \frac{y}{9}     &     -10 = \frac{y}{9}

 Multiply both sides of both equations by 9:

90 = y    &     -90 = y

 Answer:

y = -90, 90

5 0
1 year ago
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