Mathematics High School

2(x+4)-1=2x+7
How many solutions for x does the following equation have

Answers

Answer 1

Awnser ::::::: There are no signs in the problem

Related Questions

Evaluate 3x2-xy + 3y2 when x=2 and y=-2

Answers

Answer:

The answer would be 20

Step-by-step explanation:

3(22)−(2)(2)+3(22) = 20

WILL MARK YOU BRAINLIEST!!!

Answers

Answer:

very confusing but i'm guessing the glide reflection on triangle DEF

Step-by-step explanation:

1/2 = 4+D/ xy 7*

help!! please and thank you (8th grade) ​

Answers

Answer:

I'm pretty sure the answer would be 3.

Step-by-step explanation:

I'm not super sure but that makes sense

A solid object is dropped into a pond with a temperature of 20 degrees Celsius. The function f(t) = Ce(-kt) + 20 represents the situation where t is time in minuetes, C is a constant and k = 0.0399. After 4 minutes the object has a temperature of 35 degrees Celsius. What was the initial temperature of the object

Answers

Given :

A solid object is dropped into a pond with a temperature of 20 degrees Celsius.

The function f(t) = Ce(-kt) + 20 represents the situation where t is time in minutes, C is a constant and k = 0.0399.

To Find :

The initial temperature of the object.

Solution :

Putting t = 4 in given equation, we get :

[tex]35 = Ce^{(-0.0399)\times 4)}+20\\\\15 = Ce^{-0.16}\\\\C = 15\times e^{0.16}\\\\C = 17.60[/tex]

Putting value of C in given equation, we get :

[tex]f(t) = 17.60e^{-0.0399t} + 20[/tex]

Now, for initial temperature is given at t=0 s .

[tex]f(t) = 17.60e^{-0.0399\times 0} + 20\\\\f(t) = 37.60^o\ C[/tex]

Therefore, the initial temperature of the object is 37.60° C.

Hence, this is the required solution.

The scale on a map is 2 cm = 25 miles . Dave measured the distance to the next town at 5cm. How many miles away is the next town?

Answers

Divide 25 by two and which is 12.5 then multiply that by 5 and you get you’re answer

ASAP help I don’t have time! It detects if it’s right or not:(((

Answers

Answer: $45 + 4n + 3

Step-by-step explanation:

Solve for X and Y please

Answers

The answers are X = 60
Y = 119

x=61

y=119

Step-by-step explanation:

180=60+59+x

180=119+x

-119 -119

x=61

18-61=119

which statement is always true about a right triangle

Answers

Answer:

a right angle is an angle of exactly 90° (degrees) .

Step-by-step explanation:

Answer:

it always has a right corner or in other words it has at least one right 90 degree angle

Step-by-step explanation:

Please help me because I only have until 10:07 and I have another page to do !

Answers

Answer:

y=2.5x+9

Step-by-step explanation:

pick any two points and plug 2.5 for x and add 9 to the sum

I need help with my homework please, I don’t understand

Answers

Answer:

The answer is A

Step-by-step explanation:

-

If u understand this May u help me on it please

Answers

Graph 0,20 then add 0.5, or half to it after

Have a great day!

Answer:

yep its 19

Step-by-step explanation:

which of the following is the same as cos15°

Answers

Answer:

cos15 is equivalent to sin(75)

Step-by-step explanation:

solving for cos15 degrees gives you ((√(3)+1)*√(2))/4 which is the same as the sin(75)

1.f(x)=0,5x+3 represents a function, Evaluate the function if f(12), *
A. 9
B. 3.04
C. 18
D. 15.5

Answers

It’s 9. F(12)= 6 (0.5 x 12) + 3

Find the value of x.

Answers

Answer:

I'm not sure but I think that x= 53. All

Here I will explain you friend
So we know the exterior angle is 127
I am marking this triangle ABC
So 127+angle B=180( Linear pair)
So angle B = 180-127
Angle B =53
Also in this question it is AB = AC
So it is an isosceles triangle
So angle B = Angle X ( angles opposite to the equal side of the triangle are also equal)
So Answer is x =53
Hope it helps you!

write the linear equation from the given information in slope intercept form passing through (-2,8) and perpendicular to y=2x+5​

Answers

Answer:

y  =  [tex]-\frac{1}{2}[/tex] x + 9

Step-by-step explanation:

Given parameters:

  Coordinates = (-2,8)

Equation of the line  y  = 2x + 5;

Unknown:

Linear equation of a line perpendicular = ?

Solution:

From the given expression, a line perpendicular will have a negative inverse of the slope given.

           y  = 2x + 5

Equation of a line  is y = mx + c;

y and x are the coordinates

  m is the slope

   c is the intercepts

    y  = 2x + 5 ;

 The slope is 2;

  A line perpendicular will have a slope of [tex]-\frac{1}{2}[/tex]  

 Since y = 8 and x  = -2, let us find c;

     8  = 2 x [tex]-\frac{1}{2}[/tex]  + c

    8 = -1 + c

     c  = 8+1 = 9

The equation of the line is;

       y  =  [tex]-\frac{1}{2}[/tex] x + 9

−0.85 – (−1.9) +– 2.06
Group of answer choices

-1.01

1.01

3.96

-3.96

Answers

Answer:

−1.01

Step-by-step explanation:

Simplify the expression!

Answer: -1.01

Step-by-step explanation:

a double negative equals a positive. -(-1.9) = 1.9

-0.85 + 1.9 = 1.05

when you have a positive number and add a negative number you just subtract the negative number from the positive.

1.05 + - 2.06 = 1.05 - 2.06

1.05 - 2.06 = -1.01

the answer is -1.01

hope this wasn’t confusing!

Plz helppppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

??????????

Step-by-step explanation:

please please please help me find this

Answers

Answer:

I believe the answers is 84 degrees, B.

Step-by-step explanation:

146- 62 = 84

what is the solution to the system of equations
2x-y=7
y=2x+3

a. (2,3)
b.(2,7)
c. no solution
d. infinite number of solutions​

Answers

Answer:

the answer is C. no solution

Step-by-step explanation:

2x-y=7

y=2x+3

2x-(2x+3)=7

no solution

What is 1+1? Plz help I’m bad at math

Answers

Answer: 2

Step-by-step explanation:

Can someone please help me on this ty!!

Answers

-1
3/4
1/2
Hope this helps

Write the equation of a line that is parallel to y=3x + 7 and goes through (2,3)

Answers

Answer:

its y+-2+7

Step-by-step explanation:

Im so depressed do Not jit me up Rn Ok soo My mom dead

Answers

Answer:

Felt that

Step-by-step explanation:

Answer:

ee

Step-by-step explanation:

reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

what is slope intercept form?​

Answers

Answer:

y=mx+b

anajsjsjsjsjsjsjjsmsm

Answer: slope intercept form is
y = mx + b

Hope this helps :)

Please help! I have been stuck on this all day and its 1:00!!!!!! Please help!

Answers

Answer:

820.05 i guess

Step-by-step explanation:

addeverything together

find z and x

please help i’ll mark the first one or whoever right brainliest

Answers

Answer:

z=97 x=21

Step-by-step explanation:

so straight angles always equal 180°

And assuming that your lines are parallel, the angle under angle z should be 83° just like the angle above angle z

There for to solve for x, first subtract 83 from 180 because that's what that angle is equal to.

Now that you have the equation 4x+13 and you know that it's equal to 97 you can solve it just like a normal inequality.

4x+13=97

4x=84

x=21

3
The linear function is represented by the equation y=-3x - 2. What can be determined of this equation written in
slope-intercept form? Check all that apply.
3
The y-intercept is - 5
-
The y-intercept is 2.
The y-intercept is -2.
3
The slope is 3
The slope is 2.
The slope is -2.

Answers

Answer:

The y-intercept is –2.

The slope is Negative three-fifths

Step-by-step explanation:

I got it right on edge

what two numbers multiply to -36 and add up to 5

Answers

Answer:

9 and -4

Step-by-step explanation:

Finding these 2 numbers can be found by guessing and checking. By doing this, it will get you the numbers 9 and -4.

First, test if they multiply to -36:

9(-4)

= -36

Then, check if they add up to 5:

9 + (-4)

= 5

So, 9 and -4 are the 2 numbers that multiply to -36 and add to 5

Can someone please help me with this question?!!

Answers

Answer:

I believe your answer would be C, not sure tho.

Step-by-step explanation:

Hope It's Right!

Nikki just graduated from high school and would like to buy a car. If she received $3000 in graduation gifts from family friends. She will put this money into a 18 month certificate of deposit until she finds the car of her dreams. The CD earned 10% annually and simple interest. How much will she put towards the down payment and 18 months 1.5 years?

Answers

Answer:

$3450

Step-by-step explanation:

Here, P = $3000, N = 1.5 years, R = 10%

[tex]SI = \frac{PNR}{100} \\ \\ SI = \frac{3000 \times 1.5 \times 10}{100} \\ \\ SI = 450 \\ \\ [/tex]

Amount of down payment

= $3000 + $450

= $3450

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