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3 years ago

Find the perimeter of the rectangle

Mathematics

2 answers:

Oksanka [162]3 years ago

8 0

11+11+4+4=30 so the answer is thirty

nasty-shy [4]3 years ago

5 0

I hope this helps you

Perimeter =2 (4+11)

Perimeter =2.15

Perimeter =30

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Which two values of x are roots of the polynomial below?

Julli [10]

Answer:

B. and C.

Step-by-step explanation:

1. Set the polynomial equal to zero:

x² + 5x + 7 = 0

2. Plug the given values of a, b, and c into the quadratic formula:

$x=\frac{-5+-\sqrt{5^{2}-4(1)(7) } }{2(1)}$

3. Solve the square root:

$x=\frac{-5+-\sqrt{25-4(1)(7)} }{2(1)}$

$x=\frac{-5+-\sqrt{25-28} }{2(1)}$

$x=\frac{-5+-\sqrt{-3} }{2(1)}$

4. Simplify the rest:

$x=\frac{-5+-\sqrt{-3} }{2}$

5. Separate the solutions:

$x=\frac{-5+\sqrt{-3} }{2} , x=\frac{-5-\sqrt{-3} }{2}$

Thus, options B and C are the answers.

hope this helps!

4 0

2 years ago

Nico owns 11 instructional piano books. Two are beginner books, six are intermediate books, and three are advanced books. If two

Leona [35]

The probability that he first chooses an advanced book and then chooses a beginner book is 6/121.

<h3>Probability</h3>

Given:

Beginner book=2

Intermediate book=6

Instructional piano books=11

Advanced books=3

Hence:

Probability=(2×3)÷(11×11)

Probability=6/121

Therefore the probability that he first chooses an advanced book and then chooses a beginner book is 6/121.

Learn more about probability here: brainly.com/question/24756209

#SPJ2

7 0

2 years ago

Read 2 more answers

Hayden brought 18 new trading cards. Three-fourths of the new cards are baseball cards. How many baseball cards did Hayden buy

marshall27 [118]

<span>He bought 36 baseball cards. Since 3/4 of the 48 cards are baseball cards, you need to find 75% of 48, which is 36 cards. </span>

7 0

3 years ago

What is the unit rate if 65 miles in 2 ½ hour.

ad-work [718]

Answer:

26 miles per hour

Step-by-step explanation:

65/2.5=26

6 0

3 years ago

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n the proportion 1 over z equals fraction numerator begin display style 4 over 5 end style over denominator 8 end fraction which

pav-90 [236]

Answer:

$z=10$

Step-by-step explanation:

we have

$\frac{1}{z}=\frac{(4/5)}{8}$

solve for z

$z(\frac{4}{5})=8$

$z=8*5/4$

$z=10$

4 0

3 years ago