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Step2247 [10]
3 years ago
14

Extra points// mathematics

Mathematics
2 answers:
o-na [289]3 years ago
8 0

Answer:

The answer is B.

Step-by-step explanation:

Rzqust [24]3 years ago
3 0

Answer:

B

Step-by-step explanation:

using Pythagoras' theorem in the right triangle, then

c² = a² + b² = (2\sqrt{3}) ^{2} + (3\sqrt{2)} ^{2}

c² = (4 × 3) + (9 × 2) = 12 + 18 = 30

take the square root of both sides

c = \sqrt{30} → B


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A high school football pennant is in the shape of an isosceles triangle. The base is 18 inches long. The sides meet at an angle
Oksanka [162]

Answer:

The length of each side is 26.3 cm

Step-by-step explanation:

Opposite sides of an isoceles triangle are equal

The isoceles triangle is divided into 2 right-angled triangles so the length of one side can be calculated using trigonometric ratio

When the isoceles triangle is divided, the angle in the right-angled triangle is 20° (1/2 of 40°) and the base is 9cm (1/2 of 18 cm), the hypotenuse side is calculated using trigonometric ratio

Let the length of the hypotenuse side be y

9/y = sin 20°

y = 9/0.3420 = 26.3

Length of each side is 26.3 cm

3 0
3 years ago
Grocery Mart has cookies on sale for $3 for 12 cookies. Food Shoppe has cookies on sale for $5.70 for 19 cookies. Which store ha
AnnZ [28]

Answer:

5.70 for 19

Step-by-step explanation:

4 0
3 years ago
Y=2(x+1)^2 has how many real roots
oee [108]

The equation y= 2(x+1)^2 has one real root and that is x=-1.

What is real roots of the equation?

    We are aware that when we resolve a linear or quadratic equation, we always arrive at the value variable of the equation, or, to put it another way, we always locate the equation's solution. This "solution" is what we refer to as the real roots. For instance, when the equation X^2-7x+12=0 is solved, the actual roots are 3 and 4.

Here given,

=> y = 2(x+1)^2

Take y=0 then,

=> 2(x+1)^2=0

=> (x+1)^2=0

=>(x+1)=0

=> x=-1

Hence the given equation has one real root and that is x=-1.

To learn more about real roots refer the below link

brainly.com/question/24147137

#SPJ1

8 0
1 year ago
Read 2 more answers
HEEELLLLLPPPPPPPPPPPP!!!!!!!
Mademuasel [1]

Answer:

2x³ + 11x² + 8x - 16

Step-by-step explanation:

Multiply:

(x + 4) (2x² +3x - 4)

2x³ + 3x² - 4x + 8x² + 12x - 16

Combine like terms:

2x³ + 11x² + 8x - 16

4 0
3 years ago
Brainliest goes to whoever answers correctly also just say yes or no to the certain numbers
Bumek [7]

Answer:

Step-by-step explanation:

9. Yes

10. No

11. No

12. Yes

13. Yes

14. No

8 0
3 years ago
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