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3 years ago

Which equation describes the line graphed above? A. -4x-5 B. -1/5x-4 C. -5x-4 C. -4x-1/5

Mathematics

2 answers:

SashulF [63]3 years ago

8 0

Answer: B

Explanation:

The line go down one and turn right 5

So slope = -1/5x

And the y intercept is at -4

So B is the correct answer

BigorU [14]3 years ago

3 0

Answer:

Step-by-step explanation:

The line contins points: (-5, -3) and (5, -5) so the slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{-5-(-3)}{5-(-5)}=\dfrac{-5+3}{5+5}=\dfrac{-2}{10}=-\dfrac15$

and y-intercept is b = -4

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Your Statistics group wanted to determine what percent of Dulles High School senior like pineapple on their pizza. You randomly

balu736 [363]

Answer:

The answer is "0.1040"

Step-by-step explanation:

Margin of error $=Z_{\frac{\alpha}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\$

$=Z_{\frac{0.10}{2}} \sqrt{\frac{\frac{36}{60}(1-\frac{36}{60})}{60}}\\\\=1.645 \times 0.0632\\\\=0.1040\\\\$

7 0

3 years ago

Could someone please help with this?

saveliy_v [14]

9514 1404 393

Answer:

5. 88.0°

6. 13.0°

7. 52.4°

8. 117.8°

Step-by-step explanation:

For angle A between sides b and c, the law of cosines formula can be solved to find the angle as ...

A = arccos((b² +c² -a²)/(2bc))

When calculations are repetitive, I find a spreadsheet useful. It doesn't mind doing the same thing over and over, and it usually makes fewer mistakes.

Here, the side opposite x° is put in column 'a', so angle A is the value of x. The order of the other two sides is irrelevant.

<em>Additional comment</em>

The spreadsheet ACOS function returns the angle in radians. The DEGREES function must be used to convert it to degrees. The formula for the first problem is shown here:

=degrees(ACOS((C3^2+D3^2-B3^2)/(2*C3*D3)))

As you can probably tell from the formula, side 'a' is listed in column B of the spreadsheet.

The spreadsheet rounds the results. This means the angle total is sometimes 179.9 and sometimes 180.1 when we expect the sum of angles to be 180.0.

5 0

3 years ago

John carried 3 large crates of milk into his store that weighed a total of 252

kumpel [21]

Answer:

134.4oz

Step-by-step explanation:

First divide 252/3 to get the weight of each crate.

252/3=84lbs. per crate

If there's 10 gallons of milk in each crate then this must mean each gallon is 8.4lbs.

8.4lbs converts to 134.4 oz.

Hope this helps!

-MoCKEry

5 0

3 years ago

Here are three fractions: ſ . Two of these fractions are equivalent to each other.

OLEGan [10]

Answer:

2/3 and 6/9

Step-by-step explanation

If the numbers are divisible by the corresponding denominator and numerators then the fractions will be equivalent.

3 0

3 years ago

(a) sin x° = 0.8

olga2289 [7]

The value of x is 126.87° and the value of y is 53°.

<h3>What is an obtuse and an acute angle?</h3>

An obtuse angle is an angle that is greater than 90° but lesser than 180° while an acute angle is an angle between 0-90°.

From the given information:

sin x° = 0.8

x = sin⁻¹ (0.8)

x = 53.13°

x + 53.1° = 180°

x = 180° -53.13°

x = 126.87°

If cos 127° = -cos y°,

-cos y = -0.6018

cos y = 0.6018

y = cos⁻¹ (0.6018)

y = 53°

Learn more about the determination of obtuse and acute angles here:
brainly.com/question/22323626

#SPJ1

7 0

2 years ago