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ikadub [295]
2 years ago
13

Right triangles 1-2 and 3 are given with all their angle measures and approximate side lengths.

Mathematics
2 answers:
Harman [31]2 years ago
5 0

Answer:

0.34

Step-by-step explanation:

NNADVOKAT [17]2 years ago
3 0

Answer: 0.34

Step-by-step explanation: Khan Academy

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Solve by completing the square. Round your answers to the nearest tenth and then locate the greater solution. <img src="https://
Andrews [41]

Step-by-step explanation:

Step 1: Write our Givens

{x}^{2}  + 10x - 7 = 0

Move the constant term ,(the term with no variable) to the right side.

Here we have a negative 7, so we add 7 to both sides

{x}^{2}  + 10x = 7

Next, we take the linear coeffeicent and divide it by 2 then square it.

( \frac{10}{2} ) {}^{2}  = 25

Then we add that to both sides

{x}^{2}  + 10x + 25 = 7 + 25

{ {x}^{2} } + 10x + 25 = 32

Next, we factor the left,

(x + 5)(x + 5) = 32

we got 5 because 5 add to 10 and multiply to 25 as well.

so we get

(x + 5) {}^{2}  = 32

This is called a perfect square trinomial.

Next, we take the square root of both sides

x + 5 = ± \sqrt{32}

± menas that we have a positive and negative solution.

Subtract 5 form both side so we get

x =  - 5± \sqrt{32}

The greater solution is when sqr root of 32 is positive so the answer to that is

\sqrt{32}  - 5 = 0.7

3 0
2 years ago
Find the surface area of the cone to the nearest tenth.
vfiekz [6]
Surface area = base area + side area

= pi * 7^2 + pi * 7 * 27 = 238pi = 747.7 cm^2
7 0
3 years ago
Read 2 more answers
F(x) = x2. What is g(x)?
vladimir1956 [14]

Answer:

Step-by-step explanation:

C

5 0
3 years ago
What is the factored form of 8x²-36x-20?
abruzzese [7]

Answer:

(4x + 2)( 2x - 10)

Step-by-step explanation:

7 0
2 years ago
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Find the slope for the following pair of points:<br><br> (10,4) and (-2, 17)
Vinil7 [7]
F(b)-F(a)/b-a
A=10 B= -2
F(a) =4 F(b)=17
17-4/-2-10
13/-12
8 0
3 years ago
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