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3 years ago

Please help! Thanks :)

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

3 0

Answer:

I'd say your awnser, C.) was correct

Step-by-step explanation:

7.92*10.21=80.8632 which is somewhat equal to 80, which has nothing to do with the number 808. Therefire, the awnser is correct.

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Estimate . Then record the product $416×6

CaHeK987 [17]

4,ooo is the estimated answer.

3 0

3 years ago

Read 2 more answers

The coordinates of the endpoints of AB are A(-4, 3 ) and B ( 1, -3 ). Which measurment is closet to the length AB in units.

k0ka [10]

<u><em>Note: Since you may have probably unintentionally forgotten to add the choices, but I am solving this question as it would still help you clearing your concept and determining the correct choice. </em></u>

Answer:

The measurement is closet to the length AB will be $\sqrt{61}=7.81$ units

Step-by-step explanation:

As the coordinates of the endpoints of AB are

A(-4, 3 )
B( 1, -3 )

As we know that the distance between two points is basically termed as the length of the line segment AB connecting them

$\mathrm{Compute\:the\:distance\:between\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}$

So,

$\mathrm{The\:distance\:between\:}\left(-4,\:3\right)\mathrm{\:and\:}\left(1,\:-3\right)\mathrm{\:is\:}$

$=\sqrt{\left(1-\left(-4\right)\right)^2+\left(-3-3\right)^2}$

$\mathrm{Apply\:rule}\:-\left(-a\right)=a$

$=\sqrt{\left(1+4\right)^2+\left(-3-3\right)^2}$

$=\sqrt{5^2+6^2}$

$=\sqrt{25+36}$

$=\sqrt{61}$

$=7.81$ units

So, the length AB or the distance between two points A(-4, 3 ) and

B ( 1, -3 ) will be $\sqrt{61}=7.81$ units

Therefore, the measurement is closet to the length AB will be $\sqrt{61}=7.81$ units

Keywords: distance between two points, distance formula

Learn more about distance between two points from brainly.com/question/9231324

#learnwithBrainly

5 0

3 years ago

Read 2 more answers

If you plot the absorbance measurements of solutions vs. their concentrations, what is the slope equal to:_______

Sauron [17]

Answer:

Molar absorptivity coefficient

Step-by-step explanation:

Normally, from beer's law and molar extinction coefficients, the absorbance of a solution will vary with respect to the concentration or the change in the size of the container. Now, Molar absorptivity takes care of this change/variation by dividing by both the concentration and the length or measurement of the solution that the light passes through.

Since the molar absorptivity divides both the absorbance measurements and the corresponding concentrations, we can say it is the slope of the graph because the slope will be equal to the division of corresponding values of both parameters of absorbance and concentrations.

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3 years ago

There are 20 pastries at the local bakery. Five pecan pastries, ten chocolate pastries, three guava pastries and two cheese past

ratelena [41]

Answer:

D. 54 degrees

Step-by-step explanation:

http://mathcentral.uregina.ca/QQ/database/QQ.09.07/h/libby1.html

the website explains it in a very simple and easy way

3 0

4 years ago

In APQR, the measure of ZR=90°, RQ = 16, PR = 63, and QP = 65. What ratio

dedylja [7]

Answer:

The ratio is 16/65

Step-by-step explanation:

In this question, we are tasked with calculating what ratio represents the cosine of the angle Q.

In a right angled triangle, there are usually three sides, the hypotenuse, the opposite and the adjacent. Also, there are three angles, 2 asides the ∠90°. The hypotenuse is the longest side which faces the ∠90°, the opposite is that side facing the angle we are interested in while the adjacent is the third side.

Hence we can have only a single hypotenuse, which is the longest side, two opposites(depending on the angle we are concerned about and two adjacents two based on the angle of interest

Firstly, please check attachment for diagrammatic representation.

The ratio for the cosine of an angle is = length of adjacent/length of hypotenuse

From the diagram, with respect to angle Q, the length of the adjacent is 16 while the length of the hypotenuse is 65.

Thus, the ratio representing the cosine of angle Q is 16/65

8 0

3 years ago