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2 years ago

Combine like terms 20b + 10a - 10b + 3a

Mathematics

2 answers:

timurjin [86]2 years ago

8 0

Answer:

23b because a cancels out

Step-by-step explanation:

Alina [70]2 years ago

6 0

Answer:

Step-by-step explanation:

20b-10b is 10b

10a+3a is 13a

10b+13a

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Kelly had one liter of soda she divided equally into 10 classes to share with her friends how much total did each friend get.: 1

xxMikexx [17]

Answer:

1 decilitre

Step-by-step explanation:

You can look up charts for these. Look up litre chart

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1 year ago

A square pool has an area of 292 square feet.

Korvikt [17]

Since the pool is square, the four sides are equal.
Therefore the length of one side = sqrt(292) = 17.1 to the nearest tenth.

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2 years ago

Find the perimeter of the polygon with the vertices G(2, 4), H(2,−3), J(−2,−3), and K(−2, 4).

Alenkinab [10]

Answer:

<em>22 units</em>

Step-by-step explanation:

Graphed to solve.

Width:

The distance between points K and G, and points J and H is both 4 units. So for both distances between the set of points will be 8 units total.

Length:

The distance between points G and H, and points J and K is both 7 units. So for both distances between the sets of points will be 14 units total.

14 + 8 = 22

4 0

2 years ago

#5 Write the domain and range as inequalities.

aivan3 [116]

Answer:

Domain: {all real numbers}

Range: {y≥-2}

Step-by-step explanation:

The domain is all real numbers because it continues on and on forever due to the arrows. The range is y≥-2 because the range is anything from -2 and higher. Hope this helps!

5 0

2 years ago

What is the equation of a circle with diameter AB that has endpoints A(0, 0) and B(8, 6)?

fgiga [73]

Answer:

A. $(x-4)^2+(y-3)^2=25$

Step-by-step explanation:

Radius:

The length of diameter $(d)$ is the distance between A and B.

$d=\sqrt{(8-0)^2+(6-0)^2}=\sqrt{64+36}=\sqrt{100}=10\\\\radius(r)=\frac{d}{2}=\frac{10}{2}=5$

Centre:

Since A and B are end points of the diameter, centre is the mid point of these two. Let $(x,y)$ be the centre of the circle.

$x=\frac{8+0}{2}=4\\\\y=\frac{6+0}{2}=3\\\\$

Centre is $(4,3)$

Equation of circle:

If $(a,b)$ is the centre of the circle and $r$ be the radius. Equation of circle is given by:

$(x-a)^2+(y-b)^2=r^2$

$Here\ (a,b)=(4,3)\ and\ r=5\\Equation:\ (x-4)^2+(y-3)^2=5^2\\(x-4)^2+(y-3)^2=25$

6 0

2 years ago