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omeli [17]
3 years ago
8

7.8+ (x-18)=31 Please Help Asapty​

Mathematics
2 answers:
lidiya [134]3 years ago
8 0

Answer:

x=41.2

Step-by-step explanation:

hope this helps

Anit [1.1K]3 years ago
3 0

Answer:

x=41.2

Step-by-step explanation:

First, subtract 7.8 from both sides of the equation, resulting in x-18=23.2

Then, add 18 to both sides of the equation, creating x=41.2

Hope this helps.

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Which of the following, if substituted for y, would make the following inequality a true statement? –14 < y – 12?
trasher [3.6K]
Any number that is larger than -2.
For example y=0
-14 < 0-12
= -14 < -12
3 0
3 years ago
create a perfect square trinomial that can be factored using special patterns. Factor the trinomial and show all work for full c
Lyrx [107]

Answer: 4x^2+12x+9


Step-by-step explanation:

A perfect square trinomial is written as ax^2+bx+c, where

first term ax^2 = square of first term of binomial

second term=bx=twice the product of both terms of binomial.

and third term 'c'=square of last term of binomial

Thus to create a perfect  square trinomial put 'a' and 'c' a square number

Let a=4 and c=9

The required trinomial will be

4x^2+12x+9

=(2x)^2+2(2x)(3)+3^2\\=(2x+3)^2.......\text{[using pattern}(a+b)^2=a^2+2ab+b^2]\\=(2x+3)(2x+3)

3 0
3 years ago
Read 2 more answers
Help me please. i need to pass geometry
AleksandrR [38]

Answer:

1080°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 8, thus

sum = 180° × 6 = 1080°

8 0
3 years ago
What is the circumference of a 12-inch diameter pizza? Leave the answer in terms of ?.
adoni [48]

Answer:

C = 37.7 inches

Step-by-step explanation:

You are looking for the circumference.

Formula for the circumference-> C=2πr

variables:

c = circumference

r = radius

You have the diameter, which is 12 inches. Radius is half of the diameter. which means r is half of 12 (aka 6).

put the radius where the variable is in the formula.

C=2π(6)

you now have enough information to solve for circumference.

C = 2 * π * 6

C = 37.7

4 0
3 years ago
Which new angle is created by extending one side of a triangle
8090 [49]

Answer: The correct option is (C). an exterior angle.

Step-by-step explanation: We are to select the name of the new angle that is created by extending one side of a triangle.

Let ABC be a triangle as shown in the attached figure.

∠ABC, ∠ACB and ∠BAC are three interior angles of the triangle ABC.

Let us extend the side BC towards C to point D. The newly created angle is ∠ACD.

∠ACD is called the exterior angle of ΔABC.

Therefore, the newly created angle is an exterior angle.

Thus, option (C) is correct.

7 0
3 years ago
Read 2 more answers
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