MATHEMATICS HIGH SCHOOL

83% of408 ndjfjjfjfjfjfjfjfjfjfjfjfjfnfnnfndndnd

Answers

Answer 1
Answer:

Answer:

338.64

Step-by-step explanation:

Multiply 408 by .83 and get 338.64.

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On​ Monday, Luis picked up seven scones and six large coffees for the office staff. He paid $ 29.97. On​ Tuesday, Rachel picked up four scones and five large coffees for the office staff. She paid $ 20.08. What is the cost of one​ scone? What is the cost of one large​ coffee?
An infinite geometric series has 1 and 1/5 as its frist two terms:1, 1/5' 1/25' 1/125' what is the sum,s,of the infinite series?A 1/4 B1/25 c 5/4 d 1
Help me please I don't get it
The long division below shows the first term of the quotient. Which polynomial should be subtracted from the dividend first?x^2 ----------------------------------- x + 2 ) x^3 + 3x^2 + x A. x + 3 B. x^2 + x + 2 C. x^3 + 2x^2 D. x2 + 3x
Another name for the natural numbers is _____.A.the whole numbers B.the counting numbers C.the integers D.the rational numbers

For the graph below, what should the domain be so that the function is at least 200? graph of y equals minus 2 times the square of x plus 30 times x plus 200


0 ≤ x ≤ 15

−5 ≤ x ≤ 20

all real numbers

x ≥ 0

Answers

y = 2x² + 30x + 200
y = 2(x² + 15x + 100)

x² = x*x
100 ⇒ 1 x 100 ; 2 x 50 ; 4 x 25 ; 5 x 20 ; 10 x 10

200 = 2x² + 30x + 200
0 = 2x² + 30x + 200 - 200
0 = 2x² + 30x + 0
0 = 2(x² + 15x + ?)

−5 ≤ x ≤ 20

Answer: −5 ≤ x ≤ 20

Step-by-step explanation:

The floor in Lila's bedroom is 30 square yards. Calculate the area in square feet.A) 540 square feet

B) 270 square feet

C) 90 square feet

D) 10 square feet

Answers

the answer is 270
Hope I Helped

Answer:

Its B  270 square feet

Step-by-step explanation:

The solution is 270 square feet. There are 3 feet in 1 yard, and 9 square feet in 1 square yard. Therefore, we can multiply 30 by 9 to get a total of 270 square feet.

Solve the differential equation using the method of undetermined coefficients a) 4y"- 4y'-3y= cos2x

Answers

First: the homogeneous solutions: the characteristic equation is4r^2 - 4r - 3 = 0which has roots r = 3/2, -1/2 hence the homogeneous solution isy = c1.exp(-x/2) + c2.exp(3x/2)

next you need the general form for the guess for yp and that isyp = A1cos(2x) + A2sin(2x)
Now substitute that into the equation and solve for A1, A2.

A triangular bandana has an area of 78 square inches. The height of the triangle is 9 3
4
inches. Enter and solve an equation to find the length of the base of the triangle. Use b to represent the length of the base.

An equation to find the length of the base of the triangle is 78=
The length of the base of the triangle is inches.

Answers

Area of a triangle = 1/2 × base × height

Plug in what we know.

78 = 1/2 × b × 9¾

Multilply each side by 2 to get rid of the 1/2...

156 = b × 9¾

Write 9¾ as an improper fraction.
(9¾ = 9 + 3/4 = (9×4)/4 + 3/4 = 36/4 + 3/4 = 39/4)

156 = b × 39/4

Multiply each side by 4...

624 = b × 39

Divide each side by 39...

16 = b

Done! The length of the base of the triangle is 16 inches.

Tyler returned $500 worth of merchandise within the discount period. The entry to record the return would be placed into what account?

Answers

Tyler purchased something on account. I'm using the gross method of recording.

1) Purchases  xx
         Accounts Payable       xx

2) Return of merchandise w/in discount period
 
     Accounts Payable   500
                  Purchases         500

3) Payment of remaining merchandise w/in discount period
      Accounts Payable  xx
                     Cash                             xx
                     Purchase discounts   xx

Merchandise that can be discounted but returned w/in the discount period should be recorded with its original value.
The answer to your question is "Debit Accounts Payable/Suppliers Name for $500; credit Purchases Returns and Allowances for $500."

Find the roots of... X^2+10X+34

Answers

x^2+10x+34=0\n\nx^2+2\cdotx\cdot5+5^2+9=0\n\n(x+5)^2=-9\ \ \ \Rightarrow\ \ \ no\ real\ solution\n\n(x+5)^2=9\cdot i^2\ \ \ \Rightarrow\ \ \ ( x+5=3i\ \ \ \ \ \ \ or\ \ \ \ \ \ \ \ x+5=-3i)\n\nx_1=-5+3i,\ \ \ \ \ x_2=-5-3i\ \ \ \rightarrow\ \ \ two\ complex\ numbers\ solution
x^(2) +10x+34=0\n \n \Delta=10^2-4.1.34=100-136=-36\n \n \boxed{x=(-10\pm√(-36))/(2)=(-10 \pm6i)/(2)=-5\pm3i}
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