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3 years ago

What is the surface area of the square pyramid?

Mathematics

1 answer:

beks73 [17]3 years ago

6 0

Answer:

65 sq ft

Step-by-step explanation:

SA(sq pyr) = area of base + 1/2(perimeter of base)x(slant height)

SA = 5² + 1/2(10)(8)

SA = 25 + 40

SA = 65

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Jake is solving x^2-6x+5=0 by completing the square his steps are shown below step 1. x^2-6x=-5 step 2. x^-6x+9=-5+9 step 3. (x-

damaskus [11]

Answer:

Jake's error in step 3

Step-by-step explanation:

we have

$x^{2} -6x+5=0$

Complete the square

step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2} -6x=-5$

step 2

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} -6x+9=-5+9$

$x^{2} -6x+9=4$

step 3

Rewrite as perfect squares

$(x-3)^{2}=4$

Jake's error in step 3

He placed 6 instead of 3 in the left side

step 4

take square root both sides

$\sqrt{(x-3)^2} =\sqrt{4}$

step 5

$(x-3)=\pm2$

step 6

$x=3\pm2$

step 7

x=5 and x=1

7 0

4 years ago

Pls help me give u a brainlest

neonofarm [45]

Answer:

uhmm. lemme remember how to do that

4 0

4 years ago

Read 2 more answers

Please help me ahhh im doing 8th grade math with pythagorean theorem

Anna11 [10]

The distance between P and Q is 10 units. hope this helps have a nice day

6 0

3 years ago

FaSSSSSSTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT and thanks yall are fast

Mama L [17]

Answer:

120 degrees

Step-by-step explanation:

It's a vertical angle, meaning that it is congruent to the one on the opposite side of it.

5 0

3 years ago

If a is an integer, prove that (14a + 3, 21a + 4) = 1.

Firdavs [7]

Answer:

(14a+3, 21+4) = 1

Step-by-step explanation:

We are going to use the Euclidean Algorithm to prove that these two integers have a gcd of 1.

gcd (14a + 3, 21a + 4) = gcd (14a+3, 7a + 1) = gcd (1, 7a+1) = 1

Therefore,

(14a + 3, 21a + 4) = 1

8 0

3 years ago