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nikdorinn [45]
3 years ago
9

What are these diagrams names i dont need the notation thanks

Mathematics
2 answers:
Tcecarenko [31]3 years ago
8 0

1. is an acute angle ... (coz its less than 90 degree)

2. is a ray ... (coz the line goes endlessly in one side )

3. line (coz its gng endlessly in both sides )

4. intersecting lines (coz 2 lines intersect each other )

5. line segment (it has ending points on both sides )

6.point (its pretty obvious)

rewona [7]3 years ago
5 0
1. Acute angle
2. Ray
3. Line
4. Perpendicular Lines
5.Segment
6.Point
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Identify the coefficients and constants in the expression. 2x – y + 5x
garri49 [273]
I believe the answer is 7x-y
7 0
2 years ago
Are the ratios 25/45 and 15/27 proportional? Explain.
liberstina [14]
Write them out as a fraction then reduce them. If theyre the same then its proportional.

25/45 can be cancelled down to 5/9

15/27 can be cancelled down to 3/9

So no theyre not.
6 0
3 years ago
Make a function table to represent his total savings for 2,4,6,8 and 10 months.
OlgaM077 [116]
Well, let's say that bananas cost $1.60 per pound. That means that at step 0 the value is 0, at step 1 the value is$1.60, at step 2 the value is $$3.20 and so on. To make a table from this we'd need two columns and four rows. On the top row we right step followed by amount. In the step column, we list the numbers 0-2. In the amount column we list 0, $1.60, and $3.20. In the end, a function table looks like this:
5 0
3 years ago
An airplane started at point K, travelled 560 miles to point L, adjusted its route and travelled another 575 miles to point M. I
S_A_V [24]

Answer:

Step-by-step explanation:

Using the cosine theorem:

c^{2} =a^{2} +b^{2} -abcos\beta

952^{2} =560^{2} +575^{2} -560*575cos\beta

\beta =cos^{-1} (\frac{560^{2}+575^{2}-952^{2}   }{2*560*575} )

The angle is 114.014 degrees if we substract 90 degrees it means that at point L the plane changed its angle by 24 degrees

4 0
3 years ago
The seventh term of an arithmetic progression is equal to twice the fifth term. The sum
mario62 [17]

Answer:

a₁ = - 24

Step-by-step explanation:

The n th term of an AP is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₇ = 2a₅ , then

a₁ + 6d = 2(a₁ + 4d) = 2a₁ + 8d ( subtract 2a₁ + 8d from both sides )

- a₁ - 2d = 0 → (1)

The sum to n terms of an AP is

S_{n} = \frac{n}{2} [ 2a₁ + (n - 1)d ]

Given S_{7} = 84 , then

\frac{7}{2} (2a₁ + 6d) = 84

3.5(2a₁ + 6d) = 84 ( divide both sides by 3.5 )

2a₁ + 6d = 24 → (2)

Thus we have 2 equations

- a₁ - 2d = 0 → (1)

2a₁ + 6d = 24 → (2)

Multiplying (1) by 3 and adding to (2) will eliminate d

- 3a₁ - 6d = 0 → (3)

Add (2) and (3) term by term to eliminate d

- a₁ = 24 ( multiply both sides by - 1 )

a₁ = - 24

6 0
3 years ago
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