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2 years ago

Use the Pythagorean theorem to find y.

Mathematics

1 answer:

PilotLPTM [1.2K]2 years ago

8 0

Answer:

19.1

Step-by-step explanation:

13²+14²=365

√365≈ 19.1

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20 POINTS! Please help

Marysya12 [62]

The complete square will be $(x-3)^{2}$ = 3

Step-by-step explanation:

Given,

$2x^{2} -12x+12=0$

or, $x^{2} -6x+6=0$ [ by eliminating 2 from both the sides]

To make it square

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

or, $x^{2} -2xX3+9-9+6=0$ [ $(a+b)^{2}=a^{2} +2ab+b^{2}$

or, $(x-3)^{2}$ = 9-6

or, $(x-3)^{2}$ = 3

Hence the correct option is B

3 0

3 years ago

Use properties of addition and subtraction to evaluate the expression <br> -42 - 29 - 28

Setler [38]

(-42) (-29) (-28)
-42 - 29 = -71
-71 - 28 = -99

-99 is your answer

hope this helps

7 0

3 years ago

Sean b= 5,79; c= 10,4,el angulo A= 54,46°, el angulo C mide ?

Rzqust [24]

Answer:

$C \approx 91.732^{\circ}$

Step-by-step explanation:

(This exercise is presented in Spanish and for that reason explanation will be held in such language)

El lado restante se determina por la Ley del Coseno:

$a = \sqrt{b^{2}+c^{2}-2\cdot b\cdot c \cdot \cos A}$

$a = \sqrt{5.79^{2}+10.4^{2}-2\cdot (5.79)\cdot (10.4)\cdot \cos 54.46^{\circ}}$

$a \approx 8.466$

Finalmente, el angulo C se halla por medio de la misma ley:

$\cos C = - \frac{c^{2}-a^{2}-b^{2}}{2\cdot a \cdot b}$

$\cos C = -\frac{10.4^{2}-8.466^{2}-5.79^{2}}{2\cdot (8.466)\cdot (5.79)}$

$\cos C = -0.030$

$C \approx 91.732^{\circ}$

3 0

3 years ago

Which expression results from using the Distributive Property? 2(5 + 3r)

Natasha_Volkova [10]

Answer:

6r + 10

Explanation:

2(5 + 3r)

= (2)(5 + 3r)

= (2)(5) + (2)(3r)

= 10 + 6r

= 6r + 10

5 0

2 years ago

I don’t understand someone help me <br> 4-16=2+5 (s+14)

mel-nik [20]

Answer: s= - 8/5

Step-by-step explanation:

Simplify 4-164−16 to -12−12.

-12=2+5(s+14)

−12=2+5(s+14)

2 Subtract 22 from both sides.

-12-2=5(s+14)

−12−2=5(s+14)

3 Simplify -12-2−12−2 to -14−14.

-14=5(s+14)

−14=5(s+14)

5 0

3 years ago

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