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3 years ago

The tubes in a solar collector are filled with _____.

Mathematics

2 answers:

Grace [21]3 years ago

6 0

Coolant fluid is the answer

zheka24 [161]3 years ago

3 0

Filled with a coolant fluid.

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The problem is a word problem: The sum of two consecutive odd numbers is 72. find the numbers

omeli [17]

Answer:

35 and 37

Step-by-step explanation:

consecutive ODD numbers, 35 then 37.. 35+37 = 72

6 0

1 year ago

Two lines have the following equations

Mashcka [7]

Answer:

(4,-3)

Step-by-step explanation:

Easiest way to do this without any advanced methods is to use the answer choices to your advantage.

For a.) we have (1,1) meaning x = 1 and y = 1 if we get a 7 for the first equation and a -2 for the second equation then that is the correct answer.

Let x=1, y =1:

4(1)+3(1)=4+3=7 Correct so far.

1+2(1)=1+2=3 Incorrect since we should have got a -2 if this was the solution

Let (0,-1) x = 0, y = -1:

4(0) + 3(-1) = 0 -3 = - 3 Incorrect so we can stop there next answer choice.

Let (4,-3) x = 4 y = -3:

4(4)+3(-3)=16-9=7 Correct so far.

4+2(-3)=4-6=-2 Both are correct!

Therefore the solution (where the lines intersect) is (4,-3).

4 0

2 years ago

Kurt has $20. He spends $8. What percent of his money did Kurt spend?

wlad13 [49]

Answer:

40% Hope I helped

7 0

2 years ago

Read 2 more answers

The triangular pyramid shown is made up of four congruent triangles. The length of the base is 8 inches, and the height of the b

Aneli [31]

Answer:

(B) Talia is correct. The lateral area can be found by approximating one large triangle, which can be found using the expression 4 (one-half (8) (6.9))

Step-by-step explanation:

Base of the Pyramid = 8 Inches

Height of the Triangular Face = 6.9 Inches

In any solid shape, the Lateral surface area is the sum of all sides except its top and bottom bases.

Since the four triangles are congruent:

Lateral Surface Area = 4 X Area of One Triangle

Area of a Triangle = $\frac{1}{2}$ X Base X Height$

Area of one Triangular Face $= \dfrac{1}{2}(8)(6.9)$

Therefore:

Lateral Surface Area $= 4\left(\dfrac{1}{2}(8)(6.9)\right)$

Therefore, Talia is correct.

8 0

2 years ago

Sin 75°(cot 75° + cot 60°)<br><br>help me simplify this

leva [86]

(square root of 6)/ 3

7 0

2 years ago