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
Annette [7]
1 year ago
10

1. A rectangle has a length of 5cm and a height of 4cm.

Mathematics
2 answers:
Gennadij [26K]1 year ago
5 0

Answer:

a

20cm squared

b

18cm

c

5cm

d

80cm

Step-by-step explanation:

a

Area is height multiplied by length in a regular quadrilateral

b

Perimeter is calculated by adding all the sides together

c

0.5 is effectively halving, so instead of 4 multiplied by 5 it is 2 multiplied by 2.5

d

2 is effectively doubling, so instead of 4 multiplied by 5 it is 8 multiplied by 10

dsp731 year ago
3 0

Answer:

  1. <u>20 cm²</u>
  2. <u>18 cm</u>
  3. <u>5 cm²</u>
  4. <u>80 cm²</u>

Step-by-step explanation:

<u>Q1(a)</u>

  • Area = length x height
  • Area = 5 x 4
  • Area = <u>20 cm²</u>

<u>Q1(b)</u>

  • Perimeter = 2(length + height)
  • Perimeter = 2(5 + 4) = 2(9)
  • Perimeter = <u>18 cm</u>

<u>Q1(c)</u>

  • New dimensions are : 5/2 = <u>2.5</u> and 4/2 = <u>2</u>
  • New Area = 2.5 x 2
  • New Area = <u>5 cm²</u>

<u>Q1(d)</u>

  • New dimensions are : 2 x 5 = <u>10</u> and 2 x 4 =  <u>8</u>
  • New Area = 10 x 8
  • New Area = <u>80 cm²</u>
You might be interested in
What is the gcf of 96^5 and64^2
Arada [10]
8 is the gcf .........
8 0
3 years ago
Which is an example of an algebraic expression?
kherson [118]
The best option is A) d - 90.

Expressions has no equal sign nor an inequality symbol. An expression has only standard or normal numbers, with variables and some basic mathematical operations.
4 0
3 years ago
A bale of fabric is 189 metres long. If lengths of 15 metres, 36 metres and 29 metres are cut off, how much fabric is left?.
Xelga [282]

Answer:

109 metres

Step-by-step explanation:

1. Do 15+36+29 which equals 80

2. Do 189-80 and u get 109

Hope this helps :3

5 0
2 years ago
Identify the type of hypothesis test below. H0:X=10.2, Ha:X&gt;10.2 Select the correct answer below: The hypothesis test is two-
Ganezh [65]

Answer:

The hypothesis test is right-tailed

Step-by-step explanation:

To identify a one tailed test, the claim in the case study tests for the either of the two options of greater or less than the mean value in the null hypothesis.

While for a two tailed test, the claim always test for both options: greater and less than the mean value.

Thus given this: H0:X=10.2, Ha:X>10.2, there is only the option of > in the alternative claim thus it is a one tailed hypothesis test and right tailed.

A test with the greater than option is right tailed while that with the less than option is left tailed.

4 0
3 years ago
Ten years ago, you purchased a $70,000, 5-year term life insurance policy. At that time you were 30 years old.
Darina [25.2K]

Answer:

a. 14,000

b. 140,000

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • ????????????????????
    12·1 answer
  • A two-digit random number is chosen. What is the probability that the sum of its digits is 5?
    12·2 answers
  • Copy and complete the statement using &lt;,&gt; or =.
    12·1 answer
  • Una función de magia se llevó a cabo en el auditorio de la escuela. Asistieron 150 adultos
    8·1 answer
  • Compare the numbers 26^39 and 39^26. Which one is bigger? Are they the same? No calculators.
    12·1 answer
  • ,,,,,,,,,,,,,,,,,i want the answer
    11·2 answers
  • What do u get when u double 15
    12·2 answers
  • In a triangle with vertices A,B and C, if C =64° and the lengths AC= 40mm and BC= 70mm find the length AB using cosine rule
    12·1 answer
  • Please help me 7th grade math math
    10·1 answer
  • AP STATISTICS
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!