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2 years ago

Which number line plots the integers -2, 3 and 4

Mathematics

2 answers:

sweet-ann [11.9K]2 years ago

5 0

Answer:

the last one (D.)

Step-by-step explanation:

Leokris [45]2 years ago

3 0

Answer:

* * *

|-4|___|-3|___|-2|___|-1|___|0|___|1|___|2|___|3|___|4|___|5|___|6|

Step-by-step explanation:

You are looking for a dot over -2 (that is 2 units to the left of 0).

You are looking for a dot over 3 (that is 3 units to the right of 0).

You are looking for a dot over 4 (that is 4 units to the right of 0).

If you find one of the graphs matches this, then you should select.

The graph would look like this:

* * *

|-4|___|-3|___|-2|___|-1|___|0|___|1|___|2|___|3|___|4|___|5|___|6|

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Helpp!!! prove that: cosecA-cotA= tanA/2

romanna [79]

Answer:

tanA/2.

Step-by-step explanation:

some trigonometric properties:

* tanA = sinA/cosA

* secA = 1/cosA

* cscA = 1/sinA

* cotA = cosA/sinA

1/sinA - cotA

1/sinA - cosA/sinA

1 - cosA / sinA

.... 1 - cosR / sinR = tan(R/2)

1 - cosA / sinA

= tanA/2.

6 0

2 years ago

Write an equation in slope intercept form for the graph of the line.

olganol [36]

Answer:

y = 2x - 3

Step-by-step explanation:

Slope intercept form:

y = mx + b, where m - slope, b - y-intercept

Take two points from the graph:

(2, 1) and (3, 3)

Find the slope:

m = (3 - 1)/(3 - 1) = 2/1 = 2

Find the y-intercept using point (2, 1) and the equation above:

1 = 2*2 + b
b = 1 - 4
b = -3

The line is:

y = 2x - 3

5 0

2 years ago

Read 2 more answers

(15 points) + (brainliest)

LiRa [457]

Im pretty sure it would be product

7 0

3 years ago

A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square

Tems11 [23]

Answer:

The length of rectangular is increasing at a rate 0.5714 meters per hour.

Step-by-step explanation:

We are given the following in the question:

Initial dimensions of rectangular box:

Length,l = 10 m

Width,w = 7 m

$\dfrac{dA}{dt} = 8\text{ square meters per hour}\\\\\dfrac{dw}{dt} = 40\text{ centimeters per hour} =0.4\text{ meters per hour}$

We have to find the rate of increase of length.

Area of rectangle =

$A = l\times w$

Differentiating we get,

$\displaystyle\frac{dA}{dt} = \frac{dl}{dt}w + \frac{dw}{dt}l$

Putting values, we get,

$8 = \dfrac{dl}{dt}(7) + (0.4)(10)\\\\\dfrac{dl}{dt}(7) = 8 -4\\\\\dfrac{dl}{dt} \approx 0.5714$

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.

5 0

2 years ago

PLZ HELP ME WITH GEOMETRY

Helga [31]

You just need to use your test-taking skill to eliminate the wrong answers here.

There is no such thing as a "Congruent Angles Postulate," so the last two choices can be eliminated.

The AA Similarity Postulate refers to triangles, not angles, so the second choice can be eliminated.

That only leaves the (correct) first choice.

5 0

3 years ago