I can’t find the right answer so i need a bit of help

Answer:

D

Reasoning:

Anything that is divided by zero is undefined.

Answer:

l = 21

w = 9

P = 60

Step-by-step explanation:

l = 12 + w

A = l*w = 45

substitute l = 12 +w

45 = (12 + w) * w

45 = 12w + w^2

w^2 + 12w - 45 = 0

w^2 + 2*6*w +36 = 45 + 36 (added 36 on both sides 6^2)

(w + 6) ^2 = 45+36 = 81

w + 6 = +-9

As width cannot be negative w = 9

so l = 12 + 9

= 21

Perimeter = P = 2 (l + b)

= 2 ( 21 + 9)

= 2 (30)

= 60

Answer:

7.89 seconds

Step-by-step explanation:

using the quadratic formula (-b+-√(b^2-4ac))/2a

a=-16 b=119 c=57

x=-0.451

and

x=7.889

time cant be negative so use the positive x

Time required for the rocket to hit the ground would be 7.9 s.

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We are given the quadratic equation as;

-16x² + 119x + 57 = 0

By using the quadratic formula,

x = [-b ± √b² - 4ac]/2a

Here, a = -16, b = 119 and c = 57

b² - 4ac = (119 )² - 4(-16)(57)

= 14161 + 3648

= 17809

So, x = [-(119) ± √17809]/ 16(2)

= (-119 ± 133.4)/32

Therefore, the time is 7.9 s.

Learn more about quadratic equations;

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Answer:

quotient

example:

in a statement like 35 / 7 = 5 ,

35 is the dividend, 7 is the divisor, and 5 is the quotient

Answer:

28 tiles

Step-by-step explanation:

Option C is correct, No the side length of board is less than the side of the cube.

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

The volume of the cube is 1,728 cubic inches:

169n³= 1,728

n³ = 10.237

n = 2.28

The surface area of the cube does not exceed the total area of the foam board:

6n² ≤ 169

n² ≤ 28.17

n = 5.31

It is not possible to use square pieces of foam board with an area of 169 square inches to construct a cube with a volume of 1,728 cubic inches.

Therefore, square pieces of foam board with an area of 169 square inches cannot be cut and used to construct a cube with a volume of 1,728 cubic inches.

To learn more on Three dimensional figure click:

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Answer:

12:3

Step-by-step explanation:

Answer:

If it's a mixed fraction, it is 11/2 but if it's multiplication, it's 2.5. I don't really know what you mean.

Answer:

y + 7 = [tex]\frac{1}{2}[/tex] (x + 6)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

Here m = [tex]\frac{1}{2}[/tex] and (a, b ) = (- 6, - 7 ) , then

y - (- 7) = [tex]\frac{1}{2}[/tex] (x - (- 6) ) , that is

y + 7 = [tex]\frac{1}{2}[/tex] (x + 6)

4

Review

To evaluate the expression, lets use BODMAS. Before we get to the solving part, lets revise BODMAS.

=> B in BODMAS is brackets. This means that whatever operations are inside a bracket, we must solve that first.

=> O in BODMAS is Orders. The O is used very rarely, there is a possibility that there is no powers, exponents.

=> D in BODMAS is Division. This means that whatever division is occurring in the expression must be done first (Unless if there is a bracket).

=> M in BODMAS is Multiplication. This means that whatever multiplication is occurring in the expression must be done next.

=> A in BODMAS is Addition. This means that whatever addition is occurring in the expression must be done then.

=> S in BODMAS is Subtraction. This means that whatever subtraction is occurring in the expression must be done last.

Now, lets get to the point. We need to find the expression '2−[(2+10(−1)÷2)+1]'. Using the help of BODMAS, we can solve it.

Step 1: Simplify the innermost bracket.

2 − [( 2 + 10(−1)÷2)+1]

=> 2-[(2-10÷2)+1]

Note: Since in the innermost bracket there is no operation, we can open the innermost bracket and get along with the second inner bracket.

Step 2: Simplify the second inner bracket.

=> 2 - [(2 - 10 ÷ 2) + 1]

=> 2 - [(2 - 5) + 1]

=> 2 - [(-3) + 1]

=> 2 - [-3 + 1]

Step 3: Simplify the third inner bracket.

=> 2 - [-3 + 1]

=> 2 + 2

Step 4: Solve.

=>  2 + 2

=> 4

Final Answer.

Therefore, 4 is our answer after working on this problem.

Answer:

4

Step-by-step explanation:the answer is 4 because you have to 20 2-2+10 and that is ten. then minus one is 9 then 9/2=3 and then 3+1 equals 4

Answer:

www.symbolab.com , its a easy algebra calculator. wish u luck

Step-by-step explanation:

Answer:

y= 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationship between sides of a right triangle and trig functions of the acute angles. It tells you ...

  Sin = Opposite/Hypotenuse

  sin(R) = 24/26 = 12/13

and ...

  Tan = Opposite/Adjacent

  tan(T) = 10/24 = 5/12

Answer: SIN = R and TAN = T

Answer:

8. Scalene

9. Isosceles

10. Scalene

plz plzz plz mark as brainliest

Answer:

multiple 1800 by 10%

Ans: 1,620

multiple 1800 by 8%

Ans: 144

subtract the discount of 10% from 8%

1620 -144

Ans:1,476

so therefore the price for the calculator is 1476.

Answer:

Answer d

Step-by-step explanation:

Answer:

12 Loaves of bread :D

Step-by-step explanation:

hope that helped , have a great day !!

Answer:

30

Step-by-step explanation:

Attached picture...

Answer:

Step-by-step explanation:

In the image below.

I hope I've helped you.

Answer:

24 I hope help you yieeeeeee

Answer:

ummmmmmmmmmm itsssssssss

Step-by-step explanation:

Answer:

Rotation of point through 90° about the origin in clockwise direction when point M (h, k) is rotated about the origin O through 90° in clockwise direction. The new position of point M (h, k) will become M’ (k, -h).

Answer:

ohh

Step-by-step explanation:

sorry I thought I knew the question

ok ‍♀️

Answer:

B

Step-by-step explanation:

Answer:

160

Step-by-step explanation:

jbuyvcezxrctvubnjonjbvcrexwexcrvbnmnbvcrxewexrcvtbn

Step-by-step explanation:

1.If the number 1 is:0=4-2y

y=2

2.b=-2

3.n=3

Answer: The answer to your question would be $252.98

Step-by-step explanation: If you are adding a 10% shipping fee/tax, this should be correct.

Answer:

x = 1

Step-by-step explanation:

4 - (-6) = 10

10/5 = 2

2 = 2x

divide both sides by 2:

2/2 = x

x = 1

Have a nice day! :-)

and please tell me if anything is wrong.

Answer:

4-x = 10

10/5 is the fraction

10/5 = 2

2 = 2x