3 years ago

Look at pic 10 pts will mark brainilest WILL HELP OUT W 3 QUESTIONS

Mathematics

1 answer:

Dahasolnce [82]3 years ago

6 0

Answer:

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Step-by-step explanation:

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The sum of four consecutive even integers is 180. what is the smallest integer?

n200080 [17]

42
let the smallest even number be x, than the four even numbers are x, x+2, x+4, x+6, their sum is 180

x+x+2+x+4+x+6=180
4x+12=180
4x=168
x=42
the smallest even number is 42.

3 0

3 years ago

Measuring the height of a tree is usually more difficult than measuring the diameter of the tree. Therefore, many researchers us

LenKa [72]

Answer:

(B) (0.396, 1.712)

Step-by-step explanation:

From the information given;

Confidence Interval = 0.95

Significance Level $= 1 - 0.95 = 0.05$

The confidence interval for regression coefficient beta (whereby in this case it is the coefficient of the diameter) is expressed by:

= $( Beta ^- \ t_{n-2}, \alpha/2 ( S.E \ of \ \^ \ \ ), Beta^+ \ t_{n-2}, \alpha/2 ( S.E \ of \ \^ \ \ ))$

From the regression coefficient, the estimated value of beta^ = 1.054

$= (1.054 - t_{29,0.025} *(0.322), 1.054 + t_{29,0.025}*(0.322))$

$t_{229,0.025} = 2.0452\\\\ = \mathbf{(0.396, 1.712)}$

8 0

3 years ago

The box on the left is 8 inches wide and 8 inches tall what is the surface area of the box

TiliK225 [7]

Answer:

384 inches

Step-by-step explanation:

8 x 8 = 64

one face of the box is 64

6 faces of the box would be 384

6 0

3 years ago

Read 2 more answers

Please answer quick!

tatuchka [14]

4 * (25 * 1.2) = (4 * 25) * 1.2

3 0

3 years ago

Read 2 more answers

Change to standard form. Please help, ty! Will mark brainliest!

soldier1979 [14.2K]

Step-by-step explanation:

6. 7x + 7y = -11

7. -1x + 8y = 12

8. 9x + 11y = -7

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3 years ago