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oksano4ka [1.4K]
3 years ago
13

Cameron makes a quilt design using four congruent triangles as shown below. 4 connecting congruent triangles are shown. The bott

om 2 triangles share the same base. The top 2 triangles also share the same base and sit on top of the bottom 2 triangles. The base length is 21 centimeters. The length of the bottom side of the triangle is 14 centimeters. The length of the right side of the triangle is 9 centimeters. What is the perimeter of the entire design?
Mathematics
2 answers:
Pie3 years ago
6 0

Answer:

64

Step-by-step explanation:

right go ahead

9966 [12]3 years ago
5 0

Answer:

its 64cm

Step-by-step explanation:

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Giving brainliest <br><br><br> C<br> Plz help
Vitek1552 [10]

Answer:

D. 42

Step-by-step explanation:

Base = 10+4 (ft)

10+4 = 14

Height = 3

14 x 3 = 42

4 0
3 years ago
What are the roots of the equation 9x^2 + 54x +82 = 0 in simplest a + bi form?​
s344n2d4d5 [400]

Answer:

The roots are

<h3>x =  - 3 +  \frac{1}{3}  i \:  \:  \: or \:  \:  \: x =  - 3 -  \frac{1}{3} i \\</h3>

Step-by-step explanation:

9x² + 54x + 82 = 0

Using the quadratic formula

That's

<h3>x =  \frac{ - b\pm \sqrt{ {b}^{2}  - 4ac} }{2a}</h3>

From the question

a = 9 , b = 54 , c = 82

Substitute the values into the above formula and solve

That's

<h3>x =  \frac{ - 54\pm \sqrt{ {54}^{2}  - 4(9)(82)} }{2(9)}  \\ x =  \frac{ - 54\pm \sqrt{2916 - 2952} }{18}  \\ x =  \frac{ - 54\pm \sqrt{ - 36} }{18}  \\ x =  \frac{ - 54\pm 6i}{18}</h3>

Separate the real and imaginary parts

That's

<h3>x =  -  \frac{54}{18} \pm \frac{6}{18}  \: i \\ x =  - 3\pm \frac{1}{3} i</h3>

We have the final answer as

<h3>x =  - 3 +  \frac{1}{3}  i \:  \:  \: or \:  \:  \: x =  - 3 -  \frac{1}{3} i \\</h3>

Hope this helps you

5 0
3 years ago
3. The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”? Express as a fraction.
Molodets [167]

Answer:

Step-by-step explanation:

Lol since there's 2 P's and 11 letters in MISSISSIPPI. Odds are 2/11.

4 0
3 years ago
What is the expresion for (-1/2)(-1/2)(-1/2) as an exponent​
stellarik [79]

Answer:

-1/2 to the third power

Step-by-step explanation:

first you look and see -1/2 times -1/2 times -1/2 which is the same as -1/2 to the third power.

then if you have -1/2 to the 3rd power you just simply take -1/2*-1/2*-1/2 which is the same as the expression

7 0
3 years ago
Joe was walking to a grocery store at a speed of 50 feet in 9 seconds. at what speed was he walking in miles per hour
sashaice [31]

Answer:

3.79 miles per hour to the nearest hundredth.

Step-by-step explanation:

There are 3600 seconds in 1 hour.

50  feet in 9 seconds = 50/9 feet per second.

= (50/9) * 3600  feet  per hour

= (50/9) * 3600 / 5280 miles per hour.

= 50 * 400 / 5280

= 3.79 miles / hour.

4 0
3 years ago
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