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3 years ago

I need need help on this single graph. I just need a scale for it. By the way, I will mark you brainliest

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

6 0

Answer:

2 units rep 5cm

Step-by-step explanation:

plz give me brainiest

VladimirAG [237]3 years ago

5 0

Answer:

Depth(m) on the x-axis make the scale each 5 squares is 5 like 0, 5,10,15,20,25,30

Number of bubbles on the y-axis and make the scale each 5 squares 10.

Put the points of Plant A and on the same graph put points Plant B

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Find the slope of the line that passes through (10, 9) and (3, 18).

MakcuM [25]

Answer: Slope of the line is -9/7

Step-by-step explanation:

Given :

Points : (10,9) and (3,18)

Now slope of line when two points are given

m= $\frac{y2-y1}{x2-x1}$

Slope = $\frac{18-9}{3-10}$

m= $\frac{9}{-7}$

m= $\frac{-9}{7}$

This is an improper fraction since numerator is greater than the denominator

Hence slope of the line is -9/7

4 0

3 years ago

The secant of a circle also contains what other part of a circle?

DochEvi [55]

The answer is: Chord.
I just had this exact question on an exam.
Your welcome!

4 0

3 years ago

How do you find the percent error of an estimate and the actual number

suter [353]

Divide the estimated number by the exact number and multiple by 100

8 0

3 years ago

NUMBER 4 DO ANYONE KNOW IT PLEASE HELP

ss7ja [257]

Answer:

The Height of the cliff is 41.5 meters tall.

Option B. 41.5 meters.

Step-by-step explanation:

Given:

AB = 85 meter

Angle of elevation ∠ C= 26°

To Find:

Cliff height = AB = ?

Solution:

In right angle Triangle ABC by tangent Identity we have

$\tan C = \frac{\textrm{side opposite to angle C}}{\textrm{side adjacent to angle C}}$

Substituting the given values we get

$\tan 26 = \frac{AB}{BC}=\frac{AB}{85}$

$\therefore AB=85\times 0.4877=41.45=41.5\ meters$

The Height of the cliff is 41.5 meters tall.

7 0

3 years ago

A speedometer has a percent error of 10%. The actual speed of the car is 40 mph. Select from the drop-down menus to correctly co

rodikova [14]

Answer

The speedometer is likely to show the speed is either 36.0 mph or 44.0 mph.

To prove

Formula

$Percentage\ error = \frac{error\times 100}{Exact\ value}$

Where error = |Approx value - Exact value |

First case

As given

A speedometer has a percent error of 10%. The actual speed of the car is 40 mph.

Here

Percentage error = 10%

Exact value = 40 mph

error = - (Approx value - Exact value )

= - (Approx value - 40 )

= - Approx value + 40

Put in the formula

$10 = \frac{(-Approx\ value + 40)\times 100}{40}$

$400 = {(-Approx\ value + 40)\times 100}$

$\frac{400}{100} =-Approx\ value + 40$

$\4 =-Approx\ value + 40$

Thus

Approx value = 40 - 4

Approx value = 36 mph

Therefore Option (b) is correct .

Second Case

error = (Approx value - Exact value )

= (Approx value - 40 )

= Approx value - 40

Put in the formula

$10 = \frac{(Approx\ value - 40)\times 100}{40}$

$400 = {(Approx\ value - 40)\times 100}$

$\frac{400}{100} = Approx\ value - 40$

$\4 = Approx\ value - 40$

Thus

Approx value = 40 + 4

Approx value = 44 mph

Therefore Option (c) is correct .

4 0

3 years ago