d−21.4=87.9
il will give you brainlyest if you show your work

Step-by-step explanation:

for a quadratic equation

y = ax² + bx + c

the x value for the axis of symmetry is

x = -b/(2a)

in our case

y = 2x² - 4x + 5

a = 2

b = -4

x = - -4/4 = 4/4 = 1

x = 1 is the correct answer.

Answer:

20 degrees

Step-by-step explanation:

both triangles are co friend and 90+70=160 180+160=20

Answer:

x=20 degrees

Step-by-step explanation:

All angles in a triangle add up to 180 degrees.

see link in comments

Answer:

42=7z^2+21z

Step-by-step explanation:

Answer:

-9

Step-by-step explanation:

42=-7(z-3)

42=-72-21

+21       +21

63/-7=-72/7

z=-9

Answer:

Step-by-step explanation:

      $20 / 5 kg = $4 / kg

$2.50 / 0.5 kg = $5 / kg

the big bag is a better deal

Answer:

true

Step-by-step explanation:

PEMDAS order

parenthesis->exponents->multiplication & division->addition & subtraction

Answer:

The maximum AR is AR60 final answer

Answer: Its AR 60.... I'm only AR 49

Answer:

2 2/3

Step-by-step explanation:

I did the k12 quiz

The sum of 2 [tex]\frac{1}{3}[/tex] and 5/6 times 8/3 is 4 [tex]\frac{5}{9}[/tex].

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.

Given is 4 [tex]\frac{5}{9}[/tex] is the same as the sum of 2 [tex]\frac{1}{3}[/tex] and 5/6 times a number

Assume the number to be [x]. Then, we can write -

41/9 = 7/3 + 5x/6

41/9 - 7/3 = 5x/6

(41 - 21)/9 = 5x/6

20/9 = 5x/6

x = 20/9 x 6/5

x = 4/3 x 2

x = 8/3

Therefore, the sum of 2 [tex]\frac{1}{3}[/tex] and 5/6 times 8/3 is 4 [tex]\frac{5}{9}[/tex].

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

brainly.com/question/14441381

#SPJ2

Answer:

  the function is one-to-one

Step-by-step explanation:

The graph is attached.

The function is one-to-one, because no horizontal line intersects the graph at more than one point.

Answer:

The answer is 12

6×12= 24

6×12=72

Answer:

4.39%

Step-by-step explanation:

- chefs/head was facing the larger percent decrease

- by this much:

[tex] \frac{ 100 - x }{100} = \frac{95700}{100100} \\ \\ x = \frac{400}{91} \\ \\ x = 4.39\%[/tex]

Answer:

C.  12    is the correct answer

Step-by-step explanation:

1.2 x 10¹²

Answer:

c)

Step-by-step explanation:

my guess is if she needs 1.04 tablets a day, and 1 tablet is closer to that than any other option listed

Answer:

12.08-1.42=10.66

it takes 10.66 minutes on Thursday to run a mile

Answer:

1. -5.7

Step-by-step explanation:

When a negative number and another negative number are being added together (but this differs in multiplication and division though), the answer will always be negative, unless a greater positive (combination or single) number is being added to those, but in this case, it is just two negative numbers. What you can do here is add the absolute values of the negative numbers, which would be 1.8 + 3.9, since absolute values are always positive numbers. Once you add these values, which gives you 5.7, you make the answer negative, because before, you were adding negative numbers, so your answer would be -5.7.

Just so you can make sure your answers are correct for the next ones:

2. -2

3. -4.4

Area=l×w

Function:-

[tex]\\ \sf\longmapsto (l*w)(x)[/tex]

[tex]\\ \sf\longmapsto l(x)*w(x)[/tex]

[tex]\\ \sf\longmapsto (x+24)(x+16)[/tex]

[tex]\\ \sf\longmapsto x^2+40x+384[/tex]

Answer:

4 1/3

Step-by-step explanation:

7.50x-6.25=26.25

7.5x=26.25+6.25

=32.5

x=32.5÷7.5

=4 1/3

Answer:

4.33333333333 or 4 1/3

Step-by-step explanation:

Inverse operations

26.25 + 6.25 = 32.5

32.5 Divided by 7.50 = 4.33333333333

Answer = 4.33333333333

Steps:

Hello,

We cannot factorize this binomial expression using normal factorization method.

if you have studied complex numbers method, then you can solve.

Here are the steps :-

[tex]{x}^{2} = (x)(x)[/tex]

[tex]→1 = (i)( - i)[/tex]

Now multiply,

[tex](x)(i) + (x)( - i) = (xi) - (xi) = 0[/tex]

[tex]→(x + i)(x - i)[/tex]

Therefore, the factors are (x+i)(x-i) :-

[tex]→ {x}^{2} = (x + i)(x - i)[/tex]

Answer:

thanks for the points bye bye man is well with you and your family a very happy and prosperous New year

Step-by-step explanation:

thanks for the points bye bye man is a longest time I thought you were going to you angel I love you too baby girl and I will be in

thanks for the points bye bye man

Answer:

Step-by-step explanation:

(43)*(29)

explicación paso a paso:

en una operación matemática (*) se denomina como (×)

(43)*(29)=

43×29

______= 1,274

B is the answer because it results in the shape being opposite of the original.

Answer:

Most precise to least precise

so what's the question ⁉️

Answer:

104

Step-by-step explanation:

Answer:

c. 51=h−17

Step-by-step explanation:

the other ones dont make since and C is the only one that does.

Answer:

2. 1

4. -5/2

6. 3

8. 5/3

You asked for help with number 9, but you haven't included the problem in the picture, so I couldn't solve it. I hope this helps!

Step-by-step explanation:

The formula for finding slope is y2 - y1/x2 - x1

2. 3-1/3-1 = 2/2 = 1

4. 4-9/2-0 = -5/2

6.  7-1/2-0 = 6/2 = 3

8. 7-2/4-1 = 5/3

Answer:

[tex]x=-\frac{7}{3} \\x=8[/tex]

Step-by-step explanation:

[tex]3x^2-17x=56[/tex]

[tex]3x^2-17x-56=0\\[/tex]

[tex]3x^2+7x-24x-56=0[/tex]

[tex]x(3x+7)-8(3x+7)=0[/tex]

[tex](3x+7)(x-8)=0[/tex]

[tex]x=-\frac{7}{3} \\x=8[/tex]

Hope this is helpful.