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3 years ago

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Mathematics

2 answers:

Law Incorporation [45]3 years ago

8 0

Answer:

Step-by-step explanation:

nadya68 [22]3 years ago

7 0

Answer:

1203.5 cubic inches

Step-by-step explanation:

The equation for solving a pyramid with a square bases volume is A*h/3. a is area so first find the area of the square at the bottom(18.2*18.2). The you will take height divided by three ( 10.9/3). Finally multiply these two number together and you get the answerer.

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An observational study found that the amount of sleep an employee gets each night is associated with job performance. The correl

blagie [28]

Answer:

The correct option is D.) Causation cannot be determined from an observational study.

Step-by-step explanation:

The conclusion is not correct because

D.) Causation cannot be determined from an observational study.

Causation determined from an observational study is speculative and cannot be confirmed without data from a real experiment.

6 0

3 years ago

Evaluate the value of x to 1 d.p<br><br><br> Thank you

Keith_Richards [23]

Answer:

value of x = 2.8

Step-by-step explanation:

By law of cosines,

${a}^{2} = {b}^{2} + {c}^{2} - 2 \times b \times c \times cos(100) \\ {x}^{2} = {13}^{2} + {10}^{2} - (2 \times 13 \times 10 \times cos100) \\ = 169 + 100 - 260 \times 0.862 \\ = 269 - 260 \times 0.862 \\ = 7.758 \\x = \sqrt{7.758 } \\ = 2.785 \\ = approx \: 2.8$

6 0

3 years ago

How to prove that a shape is a square on the coordinate plane?

Goshia [24]

If a quadrilateral has four congruent sides and four right angles, then it's a square, and also If two consecutive sides of a rectangle are congruent, then it's a square.

Glad I could help, Have a great day!

5 0

3 years ago

Read 2 more answers

If AB=x and x=4, then the transitive property states

Anarel [89]

Answer:

4. AB=4

Step-by-step explanation:

Transitive property is like substitution, or that's how I like to think of it. Since we have 2 common variables and 2 equations, we can "link them together". Replacing x with 4, you get AB=4.

8 0

3 years ago

1. There are 150 students in the 9th grade class. They are 9th having a talent show to raise money

9966 [12]

Answer:

100 more tickets are needed to reach the goal of 2000

Step-by-step explanation:

2000-500

1500

1500/15

100

6 0

3 years ago