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IRISSAK [1]
3 years ago
10

‼️need help please..

Mathematics
1 answer:
IRINA_888 [86]3 years ago
3 0
If B is the center of that circle, then that statement is definitely false.  A central angle's degree measure is equal to the measure of the arc which it intercepts.  Keep in mind that arcs can be measured according to their LENGTH or to their DEGREE, and they are both very different from one another.  If arc AC is 65°, then the measure of angle ABC is also 65°
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Determine the variables tested in each of the following experiments. If applicable, determine and identify any positive or negat
adoni [48]

Answer:

Independent Variable- size of aquariums

Dependent variable - number of surviving fish

Controls: nil

Step-by-step explanation:

In every experiment, the independent variable is manipulated and its effect on the dependent variable is observed as certain factors are kept constant.

In this study, the independent variable is the size of the aquariums. As this factor is manipulated, the number of surviving fish (dependent variable) changed accordingly. There was no mention of a control group in the experiment.

However, temperature, amount of food and type of food were held constant for all the experimental groups.

7 0
3 years ago
What is the slope of the line that passes through the points (-4,-4) and (-4,9)? Write answer in simplest form and explain how y
Ira Lisetskai [31]
There is no slope, it’s undefined. you get this by doing 9-(-4)/-4-(-4). this comes out to 13/0, and anything over zero is undefined. hope this helped
4 0
3 years ago
A right triangle has one angle that measure 23o. The adjacent leg measures 27.6 cm and the hypotenuse measures 30 cm.
MrMuchimi

Answer:

161.8cm²

Step-by-step explanation:

solve for height which is the opposite

opp=x

sin(theata)= opp./hyp.

sin23=x/30

x=30×sin23

x=11.72cm

height=opposite

height=11.72cm

base=adjacent

base=27.6cm

½of 27.6cm=13.8

13.8cm×11.72cm=161.74 (2d.p)

161.74 rounded to the nearest tenths= 161.7

I'm not sure if it's the answer but it's the closest thing to the options

4 0
2 years ago
Answer and or help would be much appreciated work is due and needs to be submitted
riadik2000 [5.3K]

Answer:

1. D

2. C

3. B

4. A

Step-by-step explanation:

just match up the number y is on the right side and x on the left side like this (x,y)

4 0
2 years ago
three vertices of a rectangle are located at (5,3), (7,1), and (1,-1). what are the coordinates of the fourth vertex?
SVETLANKA909090 [29]

I first plotted the three points and from from their position it was clear which pairs to join to start a rectangle.

At this point you need to check to make sure the angle at B is a right angle. Find the slope of the line segments AB and BC and check that the product of the slopes is -1.

From the diagram you can now see where the fourth point D has to be. If AB and CD are parallel then D must be 3 units to the left of C and 2 units above C. Find the coordinates of D and then check by finding the slopes of CD and DA and showing that the angle at D is a right angle.

I hope this helps

3 0
2 years ago
Read 2 more answers
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