The solutions given by the quadratic formula are______
rational

A. always
B. sometimes
C. never

Answer:

1= 4x^2

2= 5b^4

3= 3u^2v^2w

4= 7

5= bc^3d^6

Note: ^ stands for exponents

Answer: lolbmfb and Dickerson’s testified ok if do add bcfgvdr

Step-by-step explanation:

Given:

The ratios are  [tex]\dfrac{30}{75}[/tex] and [tex]\dfrac{24}{60}[/tex].

To find:

Whether the ratios form a proportion or not.

Solution:

If two ratios represent the same relationship then they form a proportion.

We have,

[tex]\dfrac{30}{75}[/tex] and [tex]\dfrac{24}{60}[/tex]

Write the given ratios in the simplified forms.

[tex]\dfrac{30}{75}=\dfrac{15\times 2}{15\times 5}[/tex]

[tex]\dfrac{30}{75}=\dfrac{2}{5}[/tex]

And,

[tex]\dfrac{24}{60}=\dfrac{12\times 2}{12\times 5}[/tex]

[tex]\dfrac{24}{60}=\dfrac{2}{5}[/tex]

Since [tex]\dfrac{30}{75}=\dfrac{24}{60}=\dfrac{2}{5}[/tex], therefore the ratios form a proportion.

Answer:

40

Step-by-step explanation:

xy + x         x= -10    y= -5

Plug in the given values and remember that multiplying two negative numbers makes the product positive.

(-10)(-5) + -10

50 - 10

40

Answer:

2. 40

all you have to do is fill in the letters with their values.

Step-by-step explanation:

xy + x = ?

-10 (-5) + (-10) = ?

50 + (-10)= 40

40 = 40

Hope this helps please mark brainliest:)!

Answer: 1:35

Step-by-step explanation:

Just go and hour back from 2:30 and add 5 minutes

Answer:

1:35

i subtracted at a 1 back from 2:30 -5 minutes which would be 1:35 sorry if i confused you

Answer:

sorry I don't know the answer I have a test tomorrow and I need the points to ask my questions

Answer:

r = 85

Step-by-step explanation:

conclusion:

so the value of r is 85

Step-by-step explanation:

First, divide both sides of the equation by -6.

-6(r-98)÷6=78÷6

This gives us r-98=-13

Then, add 98 to both sides.

r-98+98=-13+98

The answer is r=85

Answer:

The area is around 28.27

Step-by-step explanation:

Answer:

the answer would be 0

Step-by-step explanation:

a circle has no sides so it would bacically be 3x0 witch equals 0 hope this helps and maybe  brainlist?

Answer:

n = 10.5

Step-by-step explanation:

i used a calculator ( hope this helps)

Answer:

you would need 18 quarts of sparkling water to mix with 9 quarts of grape juice

Step-by-step explanation:

1 1/2 is double of 3/4 so you just need to double 9 quarts of grape juice

Answer:

18 quarts of sparkling water

Step-by-step explanation:

9÷0.75=12 to figure how many times the recipe is multiplied.

12x1.5=18 to figure out how much sparkling water

3/4 = 0.75

1 1/2 = 1.5

Answer:

i might be compltely wrong but i am geting 24

Step-by-step explanation:i probply am wrong

Answer:

y = 6x + 104

Step-by-step explanation:

Given the equation in the form:

y = mx + b

m = slope ; b = intercept

Given the data:

5 days - $134 10 days - $164 15 days - $194 20 days - $224

To obtain the slope, Pick the points :

(5, 134) and (20, 224)

Slope = y2 - y1 / x2 - x1

Slope, m = (224 - 134) / (20 - 5) = 90 / 15 = 6

Plugging into the equation :

We have ;

y = 6x + b

Picking any point from the data and plugging in to solve for b:

(10, 164)

164 = 6(10) + b

164 = 60 + b

b = 164 - 60

b = 104

Equation finally becomes ;

y = 6x + 104

Answer:

25%

Step-by-step explanation:

We know that there are ten purple popsicles. Together without the purple popsicles, there are 40 popsicles in total. Therefore there is a 10/40 chance to get purple. We need to turn this into a percentage so we do (10 / 40) x 100. This would equal to 25%, therefore, there is a 25% probability to get a purple popsicle.

Answer:

a

Step-by-step explanation:

Answer:

option c

Step-by-step explanation:

Answer:

C. a= 4, b= 2

Step-by-step explanation:

In a parallelogram, opposite sides are equal.

So, 4a+1 = 2a+9

On solving, we get, a= 4

Similarly, 6b= 11b-10

On solving, we get, b= 2

Answer:

answer: option C: a=4,b=2

explanation:

opposite sides of a parallelogram are equal so,

QP =RS

6b=11b-10

I. e 6b-11b = -10

I. e. -5b = -10

I. e. - b = -10/2

I. e -b = -2

by removing minus sign from both the sides...

b =2

again opposite sides of a parallelogram are equal so,

QR =PS

4a + 1 = 2a + 9

I. e 4a- 2a = 9 - 1

I. e 2a = 8

I. e a = 8/2

therefore a= 4

so the answer is a=4 and b= 2

Answer:

b

Step-by-step explanation:

9 x 37 = 333

Answer:

$333

Step-by-step explanation:

As, the total hours Eleanor works = 37

And per hour he gets = $9

So the total wage her gets = $9 x 37

= $333

Answer:

$16

Step-by-step explanation:

1-.6=.4

.4 x 40 = 16

Answer:

60% of 40.00 is 24

Step-by-step explanation:

I hope this helps! Have a wonderful day!

Answer:

d

Step-by-step explanation:

in order for it to be a triangle the angles have to add up to equal 180

5+75+100=180 so its not a

10+80+90=180 so its not b

20+60+100=180 so its not c

45+45+45=135 so its d because the angles dont add up to 180

50+50+80=180 so its not e

Answer:

D

Step-by-step explanation:

To be a triangle, you have to have 180 degrees. if you add up all of the sides, it should give you 180. If it doesn't, it isn't a triangle. I hope that helped! :)

Plz consider giving me brainliest answer as I am trying to reach a new level, thanks!

I don't know how to give brainliest tho.

idek but imma ask mah mate who's a maths genius or whateva to help out ig

Answer:

112 degrees

Step-by-step explanation:

Since the two sides opposite of angle 1 and 2 are congruent, as shown by the double tic marks, the angles are conguent. The total sum of all angles must be 360 degrees, so we know 90 degrees was given, as well as 46 degrees. That's 136 degrees together, subtract that from 360 and you get 224. Angles 1 and 2 are congruent so both add to 224, therefore each angle is 112 degrees.

Answer:

Tamara incorrectly factored the whole expression.

Step-by-step explanation:

Note that

•21x=3·7·x;

•56xy=2·2·2·7·x·y.

Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.

Thus,

21x+56xy=7x(3+8y).

Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression.

Answer:

x = 11

Step-by-step explanation:

In this question, you would solve for x.

Solve for x:

7(x - 4) = 4x + 5

Use the distributive property.

7x - 28 = 4x + 5

Subtract both sides by 4x.

3x - 28 = 5

Add 28 to both sides.

3x = 33

Divide both sides by 3.

x = 11

Your final answer would be x = 11

Answer:

x=11

Step-by-step explanation:

First, do the parentheses (PEMDAS).

7(x-4)=4x+5 to 7x-28=4x+5

Then, add 28 to either side to get all the numbers on one side.

7x-28=4x+5 to 7x=4x+33

After that, subtract 4x to get all the x's on one side.

7x=4x+33 to 3x=33

Finally, divide by 3 to get your final answer.

3x=33 to x=11

(hope this helps :P)

Answer:

m=1.5

Step-by-step explanation:

simultaneously

   3m+9n=6

 - m+9n=3

2m=3

m=1.5

Answer:

60inches

Step-by-step explanation:

3 times 4 equals 12. 12 times 5 equals 60. so the volume should be 60 inches.

Answer:

60in squared

Step-By-Step explination:

A= L x W x H

A= 3 x 4 x 5

A= 12 x 5

A = 60in

Answer:x+-3

Step-by-step explanation:

-6x+21-3

-6x=18

Answer:

If Megan is already feeding him 4 1/2 cups of food and she "needs to feed him only 2/3 as much" then you are looking for a smaller number. 6 3/8 cups would give the dog more food.

Step-by-step explanation:

Answer:

890

Step-by-step explanation:

Answer:

890

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

-1  0  1  2  3  

1   2    3    4