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
forsale [732]
2 years ago
6

HELP PLS I WILL GIVE BRAINLIEST !

Mathematics
1 answer:
Goryan [66]2 years ago
8 0

Answer:

I) 8x12=96cm^2

Probably 96.0 to 2 s.f

II)8.3x12.5=103.75cm^2

so it's 103.8cm^2 to 1 d.p and 100 to 2 s.f

Perimeter

I) 8cm

Lower bound is 7.5

Higher bound is 8.5

12cm

Lower bound is 11.5 and upper bound is 12.5

Ans:

Lower first -

(7.5 x 2) + (11.5 x 2) = 38cm

To 2 s.f is 38.0cm

Higher next -

2 x (8.5+12.5)= 42cm

To 2 s.f is 42.0cm

Perimeter

II)8.3cm x 12.5cm(1 decimal place)

1d.p is 0.1

0.1/2 =0.05

8.3

Lowest is 8.25cm (8.30 - 0.05)

Highest is 8.35cm (8.30 + 0.05)

12.5

Lowest is 12.45cm (12.50 - 0.05)

Highest is 12.55cm (12.50 + 0.05)

Ans:

Lower first -

2 x (8.25+12.45) = 41.4cm

To 2 s.f is 41.0cm

Higher next -

2 x (8.35+12.55) = 41.8cm

To 2 s.f is 42.0cm

Hope this helps!

You might be interested in
What is the slope of the graph shown below?
Alecsey [184]

The slope is 4/3x.

Since the y-intercept is (0,-3), you go up and see that the next point is (1,1).

8 0
3 years ago
Malcolm had a 20% discount coupon for camping equipment. He bought a camp stove for $39.96. What was the original price of the c
Fudgin [204]

Answer: $ 50 after rounding to nearest cent

Step-by-step explanation:

%age                            price

80                                 $39.96

100                                  x

using cross product rule

x=39.96*100/80= $49.95

8 0
3 years ago
Help urgent plz!❤️❤️❤️Please please urgently
sleet_krkn [62]

Answer:

Problem 2): \left \{x\, |\,0\leq x\leq 240\,\,\right \}

which agrees with answer C listed.

Problem 3) :  D = (-3, 6]  and R = [-5, 7]

which agrees with answer D listed

Step-by-step explanation:

Problem 2)

The Domain is the set of real numbers in which the function (given by a graph in this case) is defined. We see from the graph that the line is defined for all x values between 0 and 240. Such set, expressed in "set builder notation" is:

\left \{x\, |\,0\leq x\leq 240\,\right \}

Problem 3)

notice that the function contains information on the end points to specify which end-point should be included and which one should not. The one on the left (for x = -3 is an open dot, indicating that it should not be included in the function's definition, therefor the Domain starts at values of x strictly larger than -3. So we use the "parenthesis" delimiter in the interval notation for this end-point. On the other hand, the end point on the right is a solid dot, indicating that it should be included in the function's definition, then we use the "square bracket notation for that end-point when writing the Domain set in interval notation:

Domain = (-3, 6]

For the Range (the set of all those y-values connected to points in the Domain) we use the interval notation form:

Range = [-5, 7]

since there minimum y-value observed for the function is at -5 , and the maximum is at 7, with a continuum in between.

6 0
3 years ago
What is the circumference of a circle with a radius of 5.4 inches? Enter your answer as a decimal in the box. Use 3.14 for pi. R
LenKa [72]
Hi there! The formula for circumference is π * diameter. Diameter is the length across the circle and twice the length of the radius.The radius is 5.4, so we will multiply that by 2 to get 10.8. The diameter is 10.8 inches. Now, multiply that numebr by 3.14 to find the circumference. 10.8 * 3.14 is 33.912 or 33.9 when rounded to the nearest tenth. There. The circumference is approx. 33.9 inches.
7 0
3 years ago
Read 2 more answers
PLEASE HELP ME FAST WITH THE CORRECT ANSWER!!!!
Scorpion4ik [409]
Its 144. you just subtract the 121 from 265.
4 0
3 years ago
Other questions:
  • Triangle DEF is similar to triangle ABC, and the length of EF is 5cm. What are the lengths of sides DE is 6cm and DF is 8cm cent
    10·1 answer
  • Solve this Proportion. Will give BRAINLIST!!
    9·1 answer
  • Sarah traveled 145 miles in<br> 2.5 hours. How fast was<br> Sarah driving?<br> Ma
    14·1 answer
  • Use the disruptive property to write an expression equivalent 5×(3+4)
    14·1 answer
  • Plz help my daughter she can't figure it out plz help her
    7·1 answer
  • (X+2)(x-4)(x+7)(x-1)
    8·1 answer
  • Which equation is quadratic in form?
    9·1 answer
  • What is the plan for the set of stacked cubes?
    7·1 answer
  • Simplify the expression below.<br> –3 X5 X(-9) X (-2)
    9·2 answers
  • Which ordered pairs are in the solution set of the system of linear inequalities?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!