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Delicious77 [7]
3 years ago
7

A number increased by 7 is 4 less than twice the number. Write the equation and solve

Mathematics
1 answer:
andrezito [222]3 years ago
3 0

Answer:

The number must be bigger than 7 for the equation be true

If you put x= 7 or x= 6...it will not be true

Step-by-step explanation:

x+7< 2x

7< x

x> 7

Example x=9          

9+7 < 2x9

16< 18  TRUE

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B(t)=50(1.4)^t
olasank [31]
B (t) = 50 (1.4) ^ t
 What is the y-intercept of the function? 
 The intersection with the y-axis of the function you find when x = 0.
 In this case we have:
 For t = 0:
 B (0) = 50 (1.4) ^ 0
 B (0) = 50 * (1)
 B (0) = 50
 Answer: 
 the y-intercept of the function is:
 B (0) = 50
 What does this mean in the context of the problem?
 You must place the complete statement to answer exactly.
 However, in any problem of exponential type, it means the initial quantity of something.
 If we refer to the increase in population over time, then the intersection with the y-axis is the initial population.
8 0
3 years ago
Solve for X.<br> 51°<br> 3x<br><br> Vertical angles
kherson [118]

Answer:

17

Step-by-step explanation:

They are vertical angles so they are the same angle.

51 = 3x

Divide each side by 3

17 = x

7 0
3 years ago
I need the answers to all 4 asap please!! they shouldn’t be too hard
TiliK225 [7]

<em>parallelogram</em>

1. perimeter 10(2)+10(2)=32+20

   perimeter = 52cm

   area=b times h

  area = 16(9)=144cm2

   

2 <em>TRAPEZOID</em>

<em>   </em>perimeter =( 21+24+25+44.67)m

                      =114.67m

                     area= 1/2( b1+b2)h

                                1/2(44.67+25)20

                                696.7m2

3. perimeter = 2+3+12+2+3+5+3+2+9+7+3

                      =51<u>cm</u>

area = 54+6+6+6=72cm2<u> </u>      

4.    perimeter is  10+4+2+3+ 2+4+10+23 =    <u>58cm</u>

<u>area is </u>

(11+23).8=37.8

=272

trap-rect=136-6

<em>=130ft2</em>

3 0
3 years ago
Number 26 . i need help
Elden [556K]

Remark

The upper answer is correct. Any time you are dealing with addition or subtraction and one of the numbers is irreducible and remains irrational no matter what you do, then the entire addition or subtraction of terms remains irrational.

For the second one that you did not answer, it works the same way as the comment says.

3√2 * 8√18 give two numbers that can be multiplied under the square root sign.

3*8 = 24

√(2*18) = √(36) = 6

The answer is 24*6 = 144

This procedure is the only way I know that you can get a rational result from two irrational factors. In fact it is really quite useful to know. You will use this when you learn how to rationalize the denominator. This exact method is used to do that.

8 0
3 years ago
EASY MATH QUESTION HELP! Under the Angle Addition Postulate, which equation would be valid?
Licemer1 [7]

Answer:

B for the first one , and C for the second

Step-by-step explanation:

for the first question DEG which is 60, and GEF which is 120, would equal to 180 degrees, which would be DEF because its a linear pair.

For the second question the are alternate exterior angles, so the are opposite of each other and on the outside.

6 0
3 years ago
Read 2 more answers
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