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
Lorico [155]
3 years ago
14

I need help with a MathsWatch question!

Mathematics
2 answers:
KIM [24]3 years ago
6 0
To find the area of a circle, you do π × diameter (in this case 10). They have told you to use 3.142 as π, so you do 3.142 × 10 = 31.42. Because it's a semi-circle, you need to halve 31.42 to get 16.21, which is the answer
yuradex [85]3 years ago
6 0
A = \pi x r²
A = 3.142 x 5²
A = 9818.75

Semicircle
9818.75 / 2 = 4909.38
You might be interested in
During a three–day period, the stock of Money, Inc. gained 6 points, lost 10 points, and gained 2 points. What was the total cha
Lelu [443]
I strongly believe the answer is D. -2 points
0+6=6
6-10=-4
-4+2=-2

6 0
3 years ago
Read 2 more answers
Since Scott started doing his work out plan Janet has been inspired to set her self a goal to do more exercise and walk a little
kogti [31]

Answer:

Day 21: 810 m

Day 60: 1,200 m

Step-by-step explanation:

The amount of meters she walk everyday can be modeled as a linear function, as the rate of variation is a constant (10 m/day):

dD/dt=10\;\text{m/day}

This constant (10 m/day) is the slope of the linear function.

We know one point of the linear function (D(20)=800) and the slope, so we can calculate the y-intercept:

D(t)=10t+b\\\\D(20)=10*20+b=800\\\\b=800-10*20=800-200\\\\b=600

Now, we can calculate the distance she walks by day 21 and day 60:

D(21)=10*21+600=210+600=810\\\\\\D(60)=10*60+600=600+600=1,200

5 0
3 years ago
-3x-5<10 Equations ​
Andrew [12]

Answer:

x>-5

Step-by-step explanation:

First, we need to isolate the variable. To start doing this we can add five to both sides. We now have -3x<15. We then have to divde by -3. When working with inequalites you flip the inequality sign when dividing by a negative number. That then leaves us without answer, x>-5.

6 0
3 years ago
HELP PLEASE ASAP HELP PLEASE HELP HELP PLEASE ASAP HELP ME PLEASE ASAP HELP PLEASE HELP ME
insens350 [35]

Answer:

i feel that the coorect answer is b

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. Th
zvonat [6]

The labor fee is $13.55 and each quart of oil is $2.25

Step-by-step explanation:

Let,

x be the amount of each quart of oil

y be the amount of labor fee

According to given statement;

5x+y=24.80        Eqn 1

7x+y=29.30        Eqn 2

Subtracting Eqn 1 from Eqn 2

(7x+y)-(5x+y)=29.30-24.80\\7x+y-5x-y=4.50\\2x=4.50

Dividing both sides by 2

\frac{2x}{2}=\frac{4.50}{2}\\x=2.25

Putting x=2.25 in Eqn 1

5(2.25)+y=24.80\\11.25+y=24.80\\y=24.80-11.25\\y=13.55

The labor fee is $13.55 and each quart of oil is $2.25

Keywords: linear equation, subtraction

Learn more about subtraction at:

  • brainly.com/question/116715
  • brainly.com/question/11680012

#LearnwithBrainly

6 0
3 years ago
Other questions:
  • What is -1 5/6 as a repeating decimal
    14·1 answer
  • What is the value of the expression 2 + 3² ⋅ (4 − 1)?<br><br> 24<br> 29<br> 33<br> 37
    15·2 answers
  • Un comerciante compró 6 camionetas por $2310000. si quiere obtener una ganancia total de $577500 ¿en cuanto debe vender cada cam
    12·1 answer
  • The two-way table shows the medal count for the top-performing countries in the 2012 Summer Olympics.
    13·2 answers
  • 1/4 or 3/7 which is larger
    12·2 answers
  • Find the numerical value of the log expression. \log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3 loga=7logb=10logc=3 \log \
    13·1 answer
  • ∠A=5x+20
    15·1 answer
  • Un artículo vale 80 dólares después de aplicarle el IVA del 20% ¿Cuánto valdría sin IVA. Y
    7·1 answer
  • If f(x) = 0, what is x?
    5·1 answer
  • ABCD is a quadrilateral inscribed in a circle, as shown below:
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!