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
mote1985 [20]
3 years ago
12

B. There are 47 cats. There are 18 fewer cats than birds. How many birds are in

Mathematics
1 answer:
ivolga24 [154]3 years ago
6 0

Answer:

65

Step-by-step explanation

47 + 18 = 65

You might be interested in
The formula for computing compound interest for a principal P that is invested at an annual rate r and compounded annually is gi
maria [59]

9514 1404 393

Answer:

  • r ≈ 6%

Step-by-step explanation:

Solving for r when n=2, we have ...

  A=P(1+r)^2\\\\\dfrac{A}{P}=(1+r)^2\\\\\sqrt{\dfrac{A}{P}}=1+r\\\\\boxed{r=\sqrt{\dfrac{A}{P}}-1}

For the given values of A and P, the value of r is ...

  r=\sqrt{\dfrac{5600}{5000}}-1=\sqrt{1.12}-1\approx 1.0583-1\\\\\boxed{r\approx 6\%}

8 0
3 years ago
A jeweler wants to minimize business costs and has found that the average cost in dollars per necklace is given by C(x)=0.5x^2-7
Vika [28.1K]

Answer:

The maximum cost is 41 dollars per necklace.

Step-by-step explanation:

The average cost in dollars/necklace is given by :

C(x)=0.5x^2-7x+65.5  .....(1)

Where

x is the number of necklaces that are created

To maximize the cost, find the value of x by putting dC/dx = 0

\dfrac{d}{dx}(0.5x^2-7x+65.5)=0\\\\x-7=0\\\\x=7

Now put the value of x = 7 in equation (1).

C(x)=0.5(7)^2-7(7)+65.5\\\\=41\ \text{dollars per necklace}

Hence, the maximum cost is 41 dollars per necklace.

8 0
3 years ago
From the observation deck of a skyscraper, Harper measures a 45^{\circ} ∘ angle of depression to a ship in the harbor below. If
Evgesh-ka [11]

The horizontal distance between the base of the skyscraper to the ship is 1145 feet.

Data;

  • Angle = 45 degree
  • Observation deck (adjacent) = 1145 ft
  • horizontal distance (opposite) = x

<h3>Trigonometric Ratios</h3>

Using trigonometric ratios, we have the value of adjacent and angle, we can easily use tangent of the angle to find the horizontal distance

tan\theta = \frac{opposite}{adjacent}

Substitute the values into the equation and solve

tan45 = \frac{x}{1145}\\ x = 1145tan45\\x = 1145ft

The horizontal distance between the base of the skyscraper to the ship is 1145 feet.

Learn more on trigonometric ratio here;

brainly.com/question/4326804

5 0
2 years ago
The sum of their speeds is 180 miles per hour superman is 20mph faster than Desperado how fast is each roller coaster
madreJ [45]

Superman is 100 mph

Desperado is 80 mph

there total speed is 180 mph and Superman is 20 mph faster

8 0
3 years ago
Which numbers round to 7.91 when rounded to the nearest hundredth? Select all that apply.
Lemur [1.5K]

A,B, and E all round to 7.91 when rounded to the nearest hundredth

5 0
3 years ago
Read 2 more answers
Other questions:
  • During a sale at h&amp;m, you buy three sweatshirts and two pairs of pants for $85.50. Later in the day, your friend buys three
    10·1 answer
  • How do you write 5/2 as a percentage
    14·2 answers
  • Is the square root of 9 rational or Irrational?
    13·2 answers
  • Identify the hypothesis and conclusion of each conditional statement. Then write each sentence in if-then form
    10·1 answer
  • Which inequality represents the values of x that ensure triangle ABC exists? a triangle with side lengths of 6.5 units, 3.5 unit
    7·2 answers
  • G.O is going on a hike in the mountains on a hot summer day. He has 4/5 of water that he can split into 4 bottles. What fraction
    7·2 answers
  • Can someone explain how to get this solution?
    11·1 answer
  • 24. If 2x-7=3, then 3x+1 =<br> 1.4<br> 2.5<br> 3.7<br> 4.12<br> 5. 16
    8·1 answer
  • Which statements are true about the graph of –6. 5 &lt; x? Check all that apply. There is an open circle on –6. 5. There is an o
    7·2 answers
  • If a polynomial function, f(x), with rational coefficients has roots 3 and startroot 7 endroot, what must also be a root of f(x)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!