Find the missing number (i.e. the coefficient in front of x) so that the equation has no solutions: □x + 4 = 4x + 15

Answer:

the awnser is. (-5) + (-12)

Answer: 7, -5+12

Step-by-step explanation:

Minus a negative is just like adding so -5 -( -12) would be the same as -5+12 which is 7

Answer:

You are given a right triangle. The sum of the two acute angles should add up to 90 degrees. Set up an equation using the expressions given and solve for x. Once you know the value of x plug it back into each expression to find the measure for each angle.

Step-by-step explanation:

Angle 1 + angle 2 = 90

solve for x = ____

Plug the value into each expression to find the measure of each angle.

Answer:

D

Step-by-step explanation:

(2x+6)+(5x+14)=90

7x+20=90

7x=70

x=10

(2x+6)=26°

(5x+14)=64°

Answer: 7.26

Step-by-step explanation:

calculator

Answer:

The last one, I think

Step-by-step explanation:

Answer: 4 5/16

Step-by-step explanation: becuase i got 100 on quiz

Answer:

A. n

Step-by-step explanation:

n/4 + n/4 + n/4 + n/4 = 4n/4 = n

On solving the expression, n/4 + n/4 + n/4 + n/4 , we get n.

A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions.  Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have the following expression -

n/4 + n/4 + n/4 + n/4

We can write -

n/4 + n/4 + n/4 + n/4

n/4(1 + 1 + 1 + 1)

4 x n/4

n

Therefore, on solving the expression, n/4 + n/4 + n/4 + n/4 , we get n.

To solve more questions on Equations, Equation Modelling and Expressions visit the link below -

brainly.com/question/14441381

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Answer:

I think it is 888.89

Step-by-step explanation:

Hope this helps. :D

Answer:

6^2+8^2=10^2

5^2+x^2=6^2

Step-by-step explanation:

Answer:

the answer is 4

Step-by-step explanation:

1/2 of 24= 12

1/3 of 12=4

hope this helps

Answer:

1009

Step-by-step explanation:

0,25 x 2018 = 504,5

20,18 x 25 = 504,5

504,5 + 504,5 = 1009

Answer:

1,009

Step-by-step explanation:

[tex] \frac{25}{100} \times 2018 = 504.5[/tex]

[tex] \frac{2018}{100} \times 25 = 504.5[/tex]

[tex]504.5 + 504.5 = 1009[/tex]

hope it helps you ☺️

Answer:

Anything with a 4x for slope. It could be y=4x + any number.

Step-by-step explanation:

Answer:

557,510

Step-by-step explanation:

haha big brain(jk calculater)

Answer:

557,510

Step-by-step explanation:

caculator

Answer:

If you were solving the right triangle, it would be:

m∠A = 46°

m∠B = 44°

m∠C = 90°

AB = 32

BC ≈ 23

AC ≈ 24

Step-by-step explanation:

To solve this right triangle, you can use trigonometric ratios to solve for the sides. To find the angle measures:

m∠A = 46° (given)

m∠B = x

m∠C = 90° (given)

180 - (46 + 90) = x

180 - 136 = x

44 = x

m∠B = 44°

To find the side measures, you can use tangent, sine, cosine, and the Pythagorean Theorem.

Recall that:

tangent = opposite side/adjacent side

sine = opposite side/hypotenuse

cosine = adjacent side/hypotenuse

So:

sin46 = BC/32

BC = 32 (sin46)

BC ≈ 23

tan46 = BC/AC

AC = BC/tan46

AC = (23.01887361...) (tan46)

AC ≈ 24

Answer:

The answer to the question is b+3 (if you need an equation)

Answer:

d

Step-by-step explanation:

-4+5n=18+3n

step 1 add 4 to each side

5n=22+3n

step 2 subtract each side by 3n

2n=22

step 3 divide each side by 2

n=11

Answer:

It is not.

Step-by-step explanation:

The formula of a right triangle is "[tex]a^{2}+b^{2} =c^{2}[/tex]" where c is the hypothenuse (the longest side of the triangle) if we replace the formula with the values we will get

  "[tex]30^{2} +122^{2} =125^{2} \\900 + 14884 = 15625\\15784\neq 15625[/tex]

Answer:Equation at the end of step 1

STEP

2

:

           4a2 - b2

Simplify   ————————

            2a - b  

Trying to factor as a Difference of Squares:

2.1      Factoring:  4a2 - b2  

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  4  is the square of  2  

Check :  a2  is the square of  a1  

Check :  b2  is the square of  b1  

Factorization is :       (2a + b)  •  (2a - b)  

Canceling Out :

2.2    Cancel out  (2a - b)  which appears on both sides of the fraction line.

Final result :

 2a + b

Step-by-step explanation:

Answer: Answer is 9

Step-by-step explanation:

Answer:

the answer to this question is C. 9

Step-by-step explanation:

Answer:

8.8 hours

Step-by-step explanation:

Happy Paws    y=4.5x+19

Woof Watchers    y=5.75x+8

4.5(8.8)+19

$58.6

5.75(8.8)+8

$58.6

Answer:

x = -6 & y= 42

Step-by-step explanation:

I hope this helps :)

x = 6, y = -42

Substitution:

-7x = -5x - 12

-2x = -12

x = 6

When x = 6,

y = -7(6) = -42

Answer:

Area=[tex]\frac{13(6)}{2}[/tex]

        =[tex]\frac{78}{2}[/tex]

       =39

Step-by-step explanation:

Answer:

39 ft

Step-by-step explanation:

use the formula for the area of the triangle (base*height)/2

(13*6)/2=78/2= 39 ft

Answer:

11.2

Step-by-step explanation:

56 divided by 5

Answer:

Phyllis invested $9000 at the rate of 5.25% and $4000 at the rate of 5%.

Step-by-step explanation:

Formula for the simple interest is,

Interest = [tex]\frac{P\times r\times t}{100}[/tex]

Here, P = Principal amount

r = rate of interest  

t = Duration of investment

Let Phyllis invested amount (at 5.25% rate of interest) = $x

Therefore, Interest on this amount,

Interest = [tex]\frac{5.25\times x}{100}[/tex]

             = $0.0525x

If he invested the rest amount $(13000 - x) at the rate of 5%,

Interest earned on this amount = [tex]\frac{(13000-x)\times 5\times 1}{100}[/tex]

                                                    = $(650 - 0.05x)

Interest earned on total amount = $672

Therefore, $0.0525x + $(650 - 0.05x) = $672.5

0.0025x + 650 = 672.5

0.0025x = 22.5

x = $9000

Rest amount = 13000 - 9000

                     = $4000

Phyllis invested $9000 at the rate of 5.25% and $4000 at the rate of 5%.

Answer:

im assuming its 6n+9.8 given that this has no context

Step-by-step explanation:

Answer:

same

Step-by-step explanation:

Answer:

The answer is 9.2

Step-by-step explanation:

Answer:

Y=-1

Step-by-step explanation:

The slope of line is zero