Will give brainliest if you are correct

Step-by-step explanation:

2x² + 8x - 1 = 0

2(x + 2)² - 9 = 0

2(x + 2)² = 9

(x + 2)² = 4.5

x = √4.5 - 2 or x = -√4.5 - 2

x = 0.12 or x = -4.12.

Answer:

No

Step-by-step explanation:

Because, the radius on AI is 2" while LD is 3".

Answer:

75 + 3.5n ≤ 100

Step-by-step explanation:

Given that:

Total amount = $100

Cost of shoe = $75

Cost per socks = $3.50

n = number of socks pairs

Cost of shoe + (cost per pair of socks * number of socks) ≤ total amount

75 + (3.50 * n) ≤ 100

75 + 3.5n ≤ 100

Answer:

Slope: 8/3

Step-by-step explanation:

Answer:a=-2

Step-by-step explanation:

Answer:

-38h-30

4h+(−6)(5)+(−6)(7h)

=4h+−30+−42h

=(4h+−42h)+(−30)

=−38h+−30

Answer:

The equation 2 x + 3 = x + x + 3 is an example of an equation that has an infinite number of solutions.

19.6

*i think*

1/2 times 2 is 1;1 times 4 is 4;4 plus 5.2(3)= 4 plus 15.6 = 19.6

Answer: 4

Step-by-step explanation:

From the question, we are informed that julie has 3 1/3 yards of fabric to make doll outfits and that each outfit requires 5/6yard of fabric

The number of outfits she can make would e:

= 3 1/3 ÷ 5/6

= 10/3 × 6/5

= 4

Answer: Time taken by pipe C to empty the tank = 5 hours.

Step-by-step explanation:

Pipe A can fill a tank in 5 hours.

Let time taken by Pipe C = x ( hours)

Time taken by Pipe B = x-2 ( hours)

Now, with all 3 pipes open, it takes 3 hours to fill the tank, it can be represented as

[tex]\dfrac15+\dfrac1{x-2}-\dfrac1x=\dfrac 13\\\\\Rightarrow\ \dfrac{x-(x-2)}{x(x-2)}=\dfrac13-\dfrac15\\\\\Rightarrow\ \dfrac{x-x+2}{x^2-2x}=\dfrac{5-3}{15}\\\\\Rightarrow \dfrac{2}{x^2-2x}=\dfrac2{15}\\\\\Rightarrow\ x^2-2x=15\\\\\Rightarrow\ x^2-2x-15=0\\\\\Rightarrrow\ x^2-5x+3x-15=0\\\\\Rightarrow\ x(x-5)+3(x-5)=0\\\\\Rightarrow\ (x-5)(x+3)=0\\\\\Rightarrow\ x=5, -3[/tex]

Time cannot be negative,

So, x=5

Thus, Time taken by pipe C to empty the tank = 5 hours.

Answer:

It’s 0,0

Step-by-step explanation: it only crosses the origin once and on the 0 so.

Answer:

0

Step-by-step explanation:

The line crosses at the origin.

Answer: A

Step-by-step explanation: because I had that same test last year

Answer:

y = 9.5

Step-by-step explanation:

Express the ratios in fractional form, that is

[tex]\frac{1.5}{4}[/tex] = [tex]\frac{9}{2y+5}[/tex] ( cross- multiply )

1.5(2y + 5) = 36 ( divide both sides by 1.5 )

2y + 5 = 24 ( subtract 5 from both sides )

2y = 19 ( divide both sides by 2 )

y = [tex]\frac{19}{2}[/tex] = 9.5

Answer:

the answer a

Step-by-step explanation:

i had it

Answer:        22.5 minutes

Step-by-step explanation:

Answer:

22.5

Step-by-step explanation:

7 1/2 = 15/2

15/2 minutes per 1/3 mile

1/3 x 3 = 1

15/2 x 3 = 22.5

22.5 minutes per mile

Answer: It should be C. (0,2)

Step-by-step explanation:

Since you are in 7th grade and have not learned about the slope-intercept form yet, I won’t write the explanation for it, since my explanation uses the slope-intercept form. (Sorry)

Answer:

35 ml/hr

Step-by-step explanation:

Convert lbs to kg

205 ÷ 2.2 = 93.18 = 93.2 kg

Calculate the minute rate

93.2 kg x 5 mcg/kg/min = 466 mcg/min

Calculate hourly rate

466 mcg/min x 60 mins/hr = 27,960 mcg/hr

Drug is expressed in mg, so convert mcg to mg

27,960 mcg = 27.96 mg

Answer:

0.2

Step-by-step explanation:

Answer:

The correct answer is 0.25

Convert the fraction to a decimal by dividing the numerator by the denominator.

0.25

Answer:

so he bought oranges of 3.11 and a 24 pack of juice bottles  the total cost before tax was 50.15 how much was each bottle of juice what you have to do is....

2

Step-by-step  

its 2 dollars each or 2.10 dollars each

Answer:

$192.50

Step-by-step explanation:

12*38.50=462

7*38.50=269.5

462-269.50=192.50

Answer:

Slope: -5/8

y intercept: (0,1)

Step-by-step explanation:

The slope of the line will be {m} = -5/8 and the y - intercept will be 1.

Direct variation of a quantity {y} with respect quantity {x} means that the value of {y} increases as the the value of {x} increases. Mathematically -

y = Kx

K = y/x

where -

{K} is scale factor. It also tells by how many times is {y} greater than {x}.

Given is the equation of a straight line as -

5x + 8y = 8

We can rewrite the equation as -

5x + 8y = 8

8y = - 5x + 8

y = -(5/8)x + 1

So the slope will be -

m = -(5/8)

c = 1

Therefore, the slope of the line will be {m} = -5/8 and the y - intercept will be 1.

To solve more questions on direct variation, visit the link below -

brainly.com/question/14254277

#SPJ2

Answer:

BD = 26

The measure of angle ADB = 59 degrees

The measure of angle DEC = 118 degrees

Step-by-step explanation:

BD = 2 * EC = 2 * 13 = 26

The measure of angle ADB = 90 - 31 = 59 degrees

The measure of angle DEC = 180 - 2(31) = 180-62 = 118 degrees

Answer:

x=4

Step-by-step explanation:

20x+5+24x-1=180

44x+4=180

- 4 -4

44x=176

/44 /44

x=4

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The two marked angles are supplementary when the lines are parallel.

  (20x +5)° +(24x -1)° = 180°

  44x +4 = 180 . . . . . . simplify

  44x = 176 . . . . . . . . . subtract 4

  x = 4 . . . . . . . divide by 44

__

The two angles are ...

  (20·4 +5)° = 85°

  (24·4 -1)° = 95°

Answer:

45 × 4 = (9 × 5) × (2 × 2) = (9 × 2) × (5 × 2) = 18 × 10 = ?

Step-by-step explanation:

Which equation shows one way to find the value of 45 × 4?

45 × 4

Splitting each number into factors of each other

45 = 9 × 5

4 = 2 × 2

45 × 4 = (9 × 5) × (2 × 2)

45 × 4 = (9 × 2) × (5 × 2)

45 × 4 = 18 × 10

Option A is the correct option

Answer:

y is equal to or greater to one

y > 1 (BUT THE > HAS A DASH UNDER IT)

Step-by-step explanation:

it's a colored in circle and i was taught that that's when the point is included (that's why a dashed should be under the >)

Answer:

[tex]y \geqslant 1[/tex]

Step-by-step explanation:

the coloured dot means it is equal to or more than 1

as the arrow moves toward bigger numbers than 1

Answer:

The number is -43.75.

Step-by-step explanation:

4x/5 - 11 = -46

4x/5 = -35

x = -43.75

Answer:

-43.75

Step-by-step explanation:

This is the answer because:

1) We know that 4/5 of a number has to equal -35 since -46 + 11 = -35.

2) 4/5x = -35 (solve for x): -35 ÷ 4/5 = -43.75

3) 4/5 x -43.75 = -35, I got this by solving for x (look at step 2)

Therefore, the answer is -43.75

Hope this helps! :D

Answer:

In an experimental study looking at classical music exposure and reading ability in children, the researcher divided the children into two groups (Groups A and B

Salaries, Wages, and Environment are the independent variables that could result in a change in the price of a basket of apples.​

Generally, Independent variables are variables that are not dependent on the price of any item indirectly.

We have to Name at least two independent variables that could result in a change in the price of a basket of apples.​

Therefore,

We have that

Salaries

Wages

Environment

People Can affect the price of a basket of apples indirectly.

For more information on Independent variables visit

https://brainly.com/question/17364204

Answer:

45 degree..................................