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2 years ago

Can someone help me with this please, I would really appreciate it, thank you! (Geometry)

Mathematics

1 answer:

Ira Lisetskai [31]2 years ago

6 0

Answer:

a. B

b. 4

c. BD

Step-by-step explanation:

a. Point A is at -7; point D is at +1. The distance between these points is ...

1 -(-7) = 8

The midpoint will be 8/2 = 4 units from either end so will be at ...

A +4 = -7 +4 = -3

D -4 = 1 -4 = -3

The point located at -3 is point B, the midpoint of AD.

b. Having done the above calculations, we know that segment AB is 4 units long.

c. We also know that segment BD is 4 units long. That is because the midpoint divides a segment into two equal parts.

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Given that f(x)=2x/3 evaluate f^-1(6)

abruzzese [7]

Answer:

Step-by-step explanation:

we know by definition that

$f^{-1}(f(x))=x\\\\f^{-1}(\frac{2x}{3})=x\\\\f^{-1}(x)=ax\\\\f^{-1}(\frac{2x}{3})=a(\frac{2x}{3})=x\\\\f^{-1}(x)=\frac{3x}{2}$

so now we evaluate

$f^{-1}(6)=\frac{3*6}{2}\\\\=3*3\\\\f^{-1}(6)=9$

and if we want to do an extra step

$f^{-1}(f(6))=6\\\\f^{-1}(\frac{2*6}{3})=f^{-1}(4)=\frac{3*4}{2}=6$

which works.

4 0

2 years ago

Someone please help me

Ratling [72]

Answer:

1 mi/1.61 km

Step-by-step explanation:

we know that

1 mile= 1.61 kilometers

To convert 1 kilometer to miles

use proportion

1/1.61 mi/km=x/1 mi/km

x=1 mi/1.61 km

5 0

2 years ago

Read 2 more answers

When converted to a household measurement, 9 kilograms is approximately equal to a

kondaur [170]

Answer:

9 kilograms is = 9000 grams

9 kilograms=317.466 ounces

Step-by-step explanation:

4 0

2 years ago

Joshua rolls two dice to form a two-digit

dusya [7]

Answer:

fits under statistics category (also probability or math :\)

4 0

2 years ago

There are 4 portable classrooms at Glynn High School. Four teachers will be assigned to the rooms. In how many ways can these as

Crank

Answer:

Step-by-step explanation:

In the first classroom, there are 4 possibilities of teachers to be assigned.

In the second classroom, 1 teacher has already been assigned, so there are 3 possibilities.

In the third classroom, 2 teachers have already been assigned, so there are only 2 possibilities.

Finally, there is only 1 possible teacher for the fourth classroom, since 3 teachers have already been assigned to other classrooms.

We can find the total number of possibilities using the product rule.

N = 4 × 3 × 2 × 1 = 24

7 0

2 years ago