1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kotykmax [81]
3 years ago
8

In ΔABC, the measure of ∠C=90°, the measure of ∠A=40°, and BC = 2.6 feet. Find the length of CA to the nearest tenth of a foot.

Mathematics
1 answer:
vladimir1956 [14]3 years ago
8 0

Answer:

3.1

Step-by-step explanation:

You might be interested in
Winston earns $140.00 by selling 56 hot dogs at a concession stand at school. Using the same rate for the cost of one hot dog, h
kvv77 [185]
Step by step explanation

Cost of one hotdog =140/56=2.5

To find the number of hot dogs =total cost so the cost of one hotdog is =175/2.5=70

So the numbers of hot dogs he had to sell more of =70-56=14
3 0
3 years ago
The function f(x) is a cubic function and the zeros of f(x) are -6, -3 and 1. The
jarptica [38.1K]

Answer:

P(x)=-5x^3-40x^2-45x+90

Step-by-step explanation:

<u>Equation of a Polynomial</u>

Given the roots x1, x2, and x3 of a cubic polynomial, the equation can be written as:

P(x)=a(x-x1)(x-x2)(x-x3)

Where a is the leading coefficient.

We know the three roots of the polynomial -6, -3, and 1, thus:

P(x)=a(x+6)(x+3)(x-1)

Since the y-intercept of the polynomial is y=90 when x=0:

90=a(0+6)(0+3)(0-1)

90=a(6)(3)(-1)=-18a

Thus

a = 90/(-18) = -5

The polynomial is:

P(x)=-5(x+6)(x+3)(x-1)

We must write it in standard form, so we have to multiply all of the factors as follows:

P(x)=-5(x^2+6x+3x+18)(x-1)

P(x)=-5(x^2+9x+18)(x-1)

P(x)=-5(x^3-x^2+9x^2-9x+18x-18)

P(x)=-5(x^3+8x^2+9x-18)

\boxed{P(x)=-5x^3-40x^2-45x+90}

3 0
2 years ago
If f(x)=2x^2+3 then f(x-1)=2x^2+4x+5 <br> true or false
TEA [102]

Hello from Hello from MrBillDoesMath!

Answer:

False.


Discussion:

See attached file for discussion.

Thank you,

MrB

7 0
4 years ago
Somebody please help me with this
Sedaia [141]

Answer:

E and F= 54 Degrees D is 90 degrees

Step-by-step explanation:

6 0
3 years ago
Two intelligent, honest students are sitting together at lunch one day when their math teacher hands them each a card. “your car
Lady bird [3.3K]
Answer: The loser's card shows 6.

Explanation: Let's start by naming the first student A and the second student B.
Since the product of A and B are either 12, 15, or 18, let's list every single possibility, the first number being A's number and the second number being B's number.

1     12
1     15
1     18
2     6
2     9
3     4
3     5
3     6
4     3
5     3
6     2
6     3
9     2
12  1
15  1
18  1

Now, the information says that A doesn't know what B has, so we can immediately cross off all of the combinations that have the integer appearing once and once ONLY off, because if it happened once only, A would know of it straight away. Now, our sample space becomes much smaller.

1     12
1     15
1     18
2     6
2     9
3     4
3     5
3     6
6     2
6     3

Using this same logic, we know that we can cross off all of the digits that occur only once in B's column.

2     6
3     6

Now, A definitely knows what number B has because there is only one number left in B. Hence, we can conclude that the loser, B, has the integer 6.
4 0
3 years ago
Other questions:
  • Suzanne can type 1,200 words in 25 minutes how many words can she type per minute
    5·1 answer
  • A rectangle had an area of 4 square meters. The width is 1/5 meter. What is the length of the rectangle?
    14·1 answer
  • Suppose that 15 inches of wire costs 45 cents. At the same rate, how many inches of wire can be bought for 24 cents?
    13·2 answers
  • A manageress earned £24,500 last year. This year she earns £25,235.
    10·1 answer
  • Which number completes the square to form a perfect square trinomial?<br> x2 +12x +
    15·2 answers
  • PLEASE HELP!! WILL MARK BRAINLEST!!
    13·2 answers
  • A rectangular football field is 64 meters wide and 100 meters long. A player runs from one corner of the field in a
    5·1 answer
  • Can someone salve this pleaseeeeeeeee
    13·2 answers
  • Find 2 consecutive numbers whose sum is -249 <br><br><br> this is urgent
    9·1 answer
  • On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 3, negative 7) and (0, 2). Everyth
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!