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miskamm [114]
3 years ago
8

Solve the quadratic equation.

Mathematics
1 answer:
tamaranim1 [39]3 years ago
4 0

Answer:

D 1 and -1

Step-by-step explanation:

8 {x}^{2}  + 16x + 8 = 0

divided by 8

{x}^{2}  + 2x + 1 = 0

(x+1)(x+1)=0

so x=+-1

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A swimming pool has a diameter of 24 feet. What is the minimum amount of fabric needed to cover the pool if the cover must hang
Alika [10]

Answer:

531.167 ft²

Step-by-step explanation:

Given data

Dimension of pool

Diameter =24ft

Radius =12ft

If the cover must hang by 1ft around, then the diameter is 26ft

Radius =13ft

Area of cover = πr²

Substitute

Area = 3.142*13²

Area =3.143*169

Area =531.167 ft²

Hence the minimum area is 531.167 ft²

5 0
3 years ago
I need help PLEASE!!!
Hitman42 [59]

Answer:

1. ∠A and ∠B are right angles.                      Given

2. m∠A = m∠ B                                               All right angles are congruent.

3. ∠BEC≅ ∠AED                                              Vertical angles are congruent

4. ΔCBE ~ ΔDAE                                               AA

Step-by-step explanation:

A proof always begins with the givens.

1. ∠A and ∠B are right angles. -------------->Given

2. m∠A = m∠ B  are equal since----------->  All right angles are congruent.

3. ∠BEC≅ ∠AED  are also equal since---->Vertical angles are congruent

4. ΔCBE ~ ΔDAE since two angles are equal----------> AA

7 0
3 years ago
Rewrite 0.81 x<br> 104 in scientific notation.<br> x 10<br> HELP ME
aev [14]
0.81 x 10^4
= 8.1 x 10^3
4 0
3 years ago
Read 2 more answers
Number 17 and 18 please and thank you
Mashutka [201]
17. All
18. B because it can be symmetrical either way
3 0
3 years ago
How to put y =2x+1 on a table
valentina_108 [34]

Answer:

I put the table below

Step-by-step explanation:

Find x and y values for the equation.

Put these values into a table

If this answer helps, please make me Brainliest!

7 0
3 years ago
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