3x2 + 5x + 7 = 0.
what's the discriminant

Answer:

%11.76

Step-by-step explanation:

400/3400x100 = 11.76

Answer:

you substitute x for 4

Step-by-step explanation:

so its f(x) and f(4) so you use 4 for x so you would solve f(x)=3(4)+2

Answer:

y4.5

Step-by-step explanation:

Answer:

575.491

Step-by-step explanation:

Answer:

575.491

Step-by-step explanation:

      1   1

 474.766

+100.725

----------------

 575.491

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

(I spent a lot of time on this, I hope it actually helps! :) )

Correct me if I'm wrong

Answer:

18 tons

Step-by-step explanation:

a) Given: Weight of 1 truck=4500 pounds

Thus, weight of 8 trucks=  pounds

We know that 1 ton=2000 pounds

Thus, weight of 8 trucks in tons=

Hence, the total weight in tons the cars on the truck= 18 tons.

b) Given: Dimensions of the room are as

Length=10 yards and width= 168 inches

We know that 1 yard=3 feet and 1 inch=

Thus, length

width=

The difference between length and width=

Hence, the length of the room exceed the width by 16 feet.

Step-by-step explanation:

[tex] \underline{ \underline{ \text{Given}}} : [/tex]

[tex] \underline{ \underline{ \text{To \: Find}}} : [/tex]

[tex] \underline{ \underline{ \text{Solution}}} : [/tex]

Plug the known values and then simplify !

⤑ [tex] \tt{ \frac{ - 3 - 4 \times 2}{3 \times 5 + 2 \times ( - 4)}} [/tex]

⤑ [tex] \tt{ \frac{ - 3 - 8}{15 + ( - 8)}} [/tex]

⤑ [tex] \tt{ \frac{ - 11}{15 - 8}} [/tex]

⤑ [tex] \tt{ \frac{ - 11}{7}} [/tex]

[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt{ \frac{ - 11}{7}}}}}}}} [/tex]

Hope I helped ! ツ

Have a wonderful day / night ! ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Answer:

The intrest rate is 8% and after 7 years she will have made 149.90 in total intrest.

Answer:

In the given problem, we can write a similarity statement relating to the three triangles in the diagram. And the answer is letter "D" triangle JKM≈ triangle MKL ≈ triangle MJL. We have arrived in this due to the ratios of corresponding legs of the three triangles and also because of same angles formed in the triangles.

Answer:

The answer is below

Step-by-step explanation:

In a certain​ year, the amount A of garbage in pounds produced after t days by an average household is given by A = 7.5t.

Plot a graph for t > 0

how many days it will take to get 200 pounds of garbage.

Solution:

a) Let the time in days (t) be on the x axis and the amount of garbage (A) in pounds be on the y axis. Therefore:

At t = 0; A = 7.5(0) = 0

At t = 10; A = 7.5(10) = 75

The graph was plotted using the geogebra online graphing tool.

b) number of days require to get 200 pounds of garbage can be gotten by finding the value t for which A = 200. Therefore:

A = 7.5t

t = A / 7.5 = 200 / 7.5

t = 26.67 days

Answer:

its 60

Step-by-step explanation:

if its right caan i get a brainliest

Answer:

60

Step-by-step explanation:

To get the area of a right triangle (a triangle with an angle of 90 [represented by the box in the corner]) you have the formula of

Area = (a*b) divided by 2

a = one side of the triangle

b = another side of the triangle

Neither side are the hypotenuse.

Step-by-step explanation:

simplify the bracket

4x-12=20

4x=20+12

4x=32

X=8

Answer:

p=2

Step-by-step explanation:

9(p-4)=-18

9p-36=-18

9p=18

p=2

Answer: p=2

Step-by-step explanation:

Divide -18 by 9 to get (p-4)=-2 and then add the 4 to the 2 to get the answer of 2

Answer:

$2.49p = c

Step-by-step explanation:

sorry if wrong

Answer:

c=2.49p

Step-by-step explanation:

Answer:2

Step-by-step explanation:9 and -9 squared both are 81 because double negative makes a positive

Answer:

6

18

not negatives!!!!!

Step-by-step explanation:

Answer:

Well if you deposit something you won't have it so negative. If you earn something then it is positive. So it is negative

Step-by-step explanation:

:)

Answer:

4x-7=x+2

3x=9

x=3

3-50=-47

Step-by-step explanation:

Answer:

The other number is 12

Step-by-step explanation:

There are GCF of two numbers is three and the LCM is 180. If one of the numbers is 45,what is the other number ?

Let us represent the other number as x

There are GCF of two numbers is three and the LCM is 180.

Therefore:

45 × x = 3 × 180

45x = 3 × 180

x = 3 × 180/45

x = 12

Therefore, the other number is 12

Answer:

Step-by-step explanation:

3(x+2)=36

3x+6=36

3x=30

x=10

Answer:

3 (10+2)=36

Step-by-step explanation:

Hope this helps

Answer:

group b

Step-by-step explanation:

because group a got 7.5 kg of berries in total and group b got 8.25 and 8.25>7,5

Answer:

$200

Step-by-step explanation:

1 week: $50

1 week ($50) x 4 = $200

Answer: You will earn $200 in the span of 4 weeks.

Step-by-step explanation:

• First, multiply the pay rate ($10 per hour) by the number of hours (5), yielding $50 a week.

• Multiply the total pay in the span of 1 week by the number of weeks (4 in this case), resulting in $200 in the span of 4 weeks.

Answer:

its a

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Multiplication Property of equality.

multiply 5 on both side to have x alone on One side.

Answer: x= 18

Step-by-step explanation: these are corresponding angles which means they are equal.

(4x-7) = (7x-61)

-7 = 3x -61

54 = 3x

18 = x

Answer:

FE= 20

Step-by-step explanation:

…......................

SAS

Step-by-step explanation:

GD = FE

3x + 5 = 4x

5 = 4x - 3x

5 = x

so, FE = 4x

= 4 × 5

= 20

Answer:

y≥-10

Step-by-step explanation:

First step when you are give numbers, make a formula:

y+9≥-1

The next step is simply to subtract 9 from both sides to isolate the variable.

y≥-10

i hope this helps u!

pls five thanks and brainliest ;)

Answer: -2 1/2

Step-by-step explanation:

First term = a = -40

Common ratio = 2nd term / First term = 20 / -40 = -1/2

5th term = ar⁴

5th term = -40 × (-1/2)⁴

5th term = -40 × 1/16

5th term = -2 1/2

Answer:

it already is in standard form

Step-by-step explanation: