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3 years ago

Best/correct answer gets brainliest!

Mathematics

2 answers:

Neporo4naja [7]3 years ago

3 0

I think the answer is 12.8 mm

melisa1 [442]3 years ago

3 0

Answer for your question is 12.8

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Can someone please help me with this?

alisha [4.7K]

i cant read it

Answer:

Step-by-step explanation:

3 0

3 years ago

I really need this pls

Schach [20]

Answer:

$\displaystyle m=\frac{-2}{3}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a Cartesian plane
Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (3, 1)

Point (0, 3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{3-1}{0-3}$
[Fraction] Subtract: $\displaystyle m=\frac{2}{-3}$
[Fraction] Rewrite: $\displaystyle m=\frac{-2}{3}$

3 0

3 years ago

Please help ASAP !!!

enot [183]

Answer: x=3

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

- Multiply both sides of the equation by 3:

$3(2x-3)=3(\frac{x^2}{3})\\6x-9=x^{2}$

- Now you must make the equation equal to zero as following:

$6x-9=x^{2}\\x^{2}-6x+9=0$

- Factor it, as you can see below. Therefore, you obtain the following result:

$(x-3)(x-3)=0\\(x-3)^2=0\\x=3$

5 0

2 years ago

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A lighthouse sights a boat. The angle of depression from the top of the lighthouse to the boat is 7 degrees. At this time, the h

koban [17]

Answer:

Step-by-step explanation:

tan7=h/820

h=820tan7

h=101m

3 0

2 years ago

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Arsenic is an element that occurs naturally in groundwater, but a mean greater than 8.0 parts per billion indicates that the gro

Studentka2010 [4]

Answer:

Based on the data, if we find moderate/strong evidence against the null hypothesis and conclude the mean arsenic level of the water is greater than 8.0 ppb, we have made ____________.

a correct decision.

Step-by-step explanation:

Since there is enough evidence to conclude that the mean level of arsenic is greater than 8.0 ppb, the correct decision has been made. There is no type I or type II error. The type I error (called a false positive) occurs if we reject the null hypothesis when it is true. Since we have simply rejected the null hypothesis when the alternate hypothesis is true, and the null hypothesis should be rejected, a correct decision has been made.

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2 years ago

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