1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Molodets [167]
3 years ago
12

Combine the like terms to create an equivalent expression. 8z+12+3

Mathematics
2 answers:
WITCHER [35]3 years ago
5 0
8z + 15

just combine like terms
vampirchik [111]3 years ago
3 0

Answer:

8z +15

Step-by-step explanation:

You might be interested in
Find all points on the x-axis that are 14 units from the point (6,-7) All points on the x-axis that are 14 units from the point
Maksim231197 [3]

Answer: (6+7\sqrt{3},0)\text{ and }(6-7\sqrt{3},0) are the required points.

or  (18.124,0) and ( -6.124,0) are the required points.

Step-by-step explanation:

Let (x,0) be the point on x -axis that are 14 units from the point (6,-7) .

Then by distance formula , we have

\sqrt{(x-6)^2+(0-(-7))^2}=14\ \ \ [\ \because distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}]

Taking square on both the sides , we get

(x-6)^2+7^2=14^2\\\\\Rightarrow\ x^2+6^2-2(6)x+49=196\\\\\Rightarrow\ x^2+36-12x=147\\\\\Rightarrow\ x^2-12x=111\\\\\Rightarrow\ x^2-12x-111=0

Using quadratic formula : x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\dfrac{12\pm\sqrt{(-12)^2-4(1)(-111)}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm\sqrt{144+444}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm\sqrt{588}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm\sqrt{2^2\times7^2\times3}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm14\sqrt{3}}{2}\\\\\Rightarrow\ x=6\pm7\sqrt{3}

so, (6+7\sqrt{3},0)\text{ and }(6-7\sqrt{3},0) are the required points.

since \sqrt{3}=1.732

so, (6+7(1.732),0)\text{ and }(6-7(1.732),0) are the required points.

i.e. (18.124,0) and ( -6.124,0) are the required points.

3 0
3 years ago
Bonjour, aidez moi svp .c'est sur la 1er guerre mondiale 1914
Nikitich [7]

WHAT IS THIS LANGUAGE ? PLEASE TRY TO USE ENGLISH !

6 0
2 years ago
Use the midpoint formula to estimate the sales of Cars, Inc. in 2009, given the sales in 2008 and 2010. Assume that the sales of
lana [24]

Answer:

<em>The estimated sales were $260 million</em>

Step-by-step explanation:

Assume the endpoints of a segment are (x1,y1) and (x2,y2).

The midpoint (xm,ym) is calculated as follows:

\displaystyle x_m=\frac{x_1+x_2}{2}

\displaystyle y_m=\frac{y_1+y_2}{2}

The sales ov Cars, Inc. were (2008,240 million) and (2010,280 million). We need to use the midpoint to estimate the sales in 2009:

\displaystyle x_m=\frac{2008+2010}{2}=2009

\displaystyle y_m=\frac{240+280}{2}=260

The estimated sales were $260 million

5 0
3 years ago
A house on the market was valued for 409,000
Nana76 [90]
I’d need to know the question to answer this.
5 0
3 years ago
The sale is being held from 11 a.m to 7 p.m on sunday, and from 9 a.m to 7 p.m on monday. How many hours will the sale last?​
PSYCHO15rus [73]
8+10=18as your final answer
3 0
3 years ago
Read 2 more answers
Other questions:
  • The following equation of a quadratic function is given in standard form. f(x) = x²- 2x + 2 Determine the vertex for each quadra
    10·1 answer
  • Writing equations from graphs
    8·1 answer
  • A group of 5 students was asked, "How many hours did you watch television last week?" Here are their responses:
    9·1 answer
  • <img src="https://tex.z-dn.net/?f=%20tan%20%5Calpha%20%20%5Ctimes%20sin%20%5Calpha%20%20%3D%20" id="TexFormula1" title=" tan \al
    9·1 answer
  • Consider a population with 3 observations: 6, 10 and 12. You use simple random sampling without replacement to select a sample o
    6·1 answer
  • Solve using substitution.<br> y = 10x + 8<br> y = 5x + 3
    8·2 answers
  • A hot air balloon descends to the ground. The function a(t) = 210 – 15t can be used to describe the altitude of the balloon as i
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=3y%20-%205x%20%3D%2010" id="TexFormula1" title="3y - 5x = 10" alt="3y - 5x = 10" align="absmid
    10·2 answers
  • A group of friends collected toys to donate to children in need. After sorting the toys into
    10·1 answer
  • Solve. Check for extraneous solutions. √x²+3 =x+1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!