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djverab [1.8K]
3 years ago
7

What is the property of (4 + 7) + 8 = 4 + (7 +8) ?

Mathematics
1 answer:
nasty-shy [4]3 years ago
4 0

Answer:

Commutative

Step-by-step explanation:

2 + 4 = 4 + 2 as an example

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Priya noticed in the last activity that between the 2 triangles, you only need to know 4 angles to show that they are similar. S
ValentinkaMS [17]

Answer:

Please find attached a drawing of the triangles ΔRST and EFG showing the angles

The angle on ΔEFG that would prove the triangles are similar is ∠F = 25°

Step-by-step explanation:

In order to prove that two triangles are similar, two known angles of each the triangles need to be shown to be equal

Given that triangle ∠R and ∠S of triangle ΔRST are 95° and 25°, respectively, and that ∠E of ΔEFG is given as 90°, then the corresponding angle on ΔEFG to angle ∠S = 25° which is ∠F should also be 25°

Therefore, the angle on ΔEFG that would prove the triangles are similar is ∠F = 25°.

3 0
3 years ago
sonya is renting a car. she pays a fee of $50 for the rental plus $20 each day she has the car. suppose she pays a total of $130
STatiana [176]

Answer:

the answer is 4

Step-by-step explanation:130-50=80

80/20=4

7 0
3 years ago
Read 2 more answers
A ferry is travelling at a constant speed back to the dock, as shown in the graph. Which
PolarNik [594]

Answer:

<h2>y = -35x + 105</h2>

Step-by-step explanation:

The given graph represents a function between hours and miles.

To determine the equation that belong to this graph, first we need to find the slope using two points from the graph: (0, 105) and (3, 0).

The definition of slope is

m=\frac{y_{2} -y_{1} }{x_{2}-x_{1} } =\frac{0-105}{3-0}=\frac{-105}{3}=-35

Notice that the slope is -35. Remember that the slope is always the coefficient of variable x. So, the choice that has this slope is the right answer.

Therefore, the right answer is the last choice: y = -35x + 105

3 0
4 years ago
I don’t know wich boxes to choose
Anika [276]

Answer:

C, D, F

Step-by-step explanation:

She walked 12 miles. Then she walked 1/4 that distance. "That distance" is 12 miles.

That means she walked 12 miles plus 1/4 of 12 miles.

She walked

12 + 1/4 * 12

You can factor out 12 from the expression above, and write it as

12(1 + 1/4)

Now you can do the addition in parentheses.

12(1 + 1/4) = 12(4/4 + 1/4) = 12(5/4)

Answer:

C, D, F

8 0
3 years ago
Read 2 more answers
Find the 97th term of the arithmetic sequence 25, 29, 33, ...25,29,33,...
Tresset [83]

If the first term is 25 and the common difference is 4. Then the 97th term of the sequence will be 409.

<h3>What is a sequence?</h3>

A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after.

The sequence is given below.

25, 29, 33, ...., so on

Then the first term is 25. And the common difference is 4.

Then the 97th term will be given as

\rm a_n = a + (n - 1)d

where

n = 97

a = 25

d = 4

Then we have

a₉₇ = 25 + (97 - 1)4

a₉₇ = 25 + 96 x 4

a₉₇ = 25 + 384

a₉₇ = 409

Then the 97th term of the sequence will be 409.

More about the sequence link is given below.

brainly.com/question/21961097

#SPJ1

3 0
2 years ago
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