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stealth61 [152]
3 years ago
7

What are the terms and like terms? 1. 3n + 7 - n - 3

Mathematics
2 answers:
NikAS [45]3 years ago
8 0
The like terms are 3n and -n and the terms are 7 and 3
juin [17]3 years ago
6 0

Answer:

3n and -n

7 and -3

Step-by-step explanation:

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if you draw two right triangles using the line as the hypotenuse, do the triangles have to be similar? Why or why not?
diamong [38]

Answer:

All the right triangles will be similar.

Step-by-step explanation:

See the attached diagram.

Let us assume any two right triangles are drawn on the line OP, and AB and A'B' as the hypotenuse on the same line OP.

Since the slope of the line OP is constant and assume that it makes x° with the positive x-axis.

Hence, \tan x = \frac{AC}{BC} = \frac{A'C'}{B'C'}

⇒ \frac{AC}{A'C'} = \frac{BC}{B'C'}

Therefore, the sides of the two right triangles are in the same ratio and hence, Δ ABC and Δ A'B'C' are similar.

Hence, all the right triangles will be similar. (Answer)

4 0
3 years ago
Look at the pic below for the question please help!!
igomit [66]

answer:

(bh) (hb)

explanation: this is because to be able to find the area of the triangle, you need to know at least the length of two sides and these are the formulas that you could use to get the area

7 0
3 years ago
Read 2 more answers
2. Calculate the total cost, including 5.75% sales tax, of a $169.99
8_murik_8 [283]

Answer:

$179.76

Step-by-step explanation:

We can calculate the total cost as follows.  The 1.00 represents the before-tax cost of the dehumidifier and the 0.0575 the 5.75% sales tax:

Total cost of dehumidifier = (1.00+0.0575)($169.99) = $179.76 (to the nearest

                                                                                                                     cent()

7 0
3 years ago
The product of a positive number and 14 more than seven times the number is 105. Find the two numbers. first number =______ and
Nostrana [21]
Let the positive number be x

The expression is
x(14+7x)=105⇒ expanding the bracket gives,
14x+7 x^{2} =105 ⇒ rearranging to equate one side to zero
7x^{2} +14x-105=0 ⇒ Dividing each term by 7 to simplify
x^{2} +2x-15 ⇒ Factorising gives
(x+5)(x-3)=0
x=-5 and x=3

Hence, the first number is -5 and the second number is 3

8 0
4 years ago
Read 2 more answers
NEED HELP ASAP PLS PLS PLS
Leni [432]

Answer:

-9 I guess

Step-by-step explanation:

cuz risen means it got higher and -12 +5 is -7and again it droped means it got colder and -7+2 is -9

5 0
3 years ago
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