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Andrej [43]
3 years ago
7

For what value of x is a parallelogram ABCD a rectangle

Mathematics
2 answers:
hodyreva [135]3 years ago
6 0

Answer:

A)  7

Step-by-step explanation:

x + 5 = 2x - 2

7 + 5 = 2(7) - 2

12 = 12

Effectus [21]3 years ago
4 0

Answer:

a is your answer

Step-by-step explanation:

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Identify the law illustrated by: 5n x 1 is the same as 5n
tangare [24]

<u><em>The law illustrated is Distributive Law</em></u>

This question is under a topic called algebra laws.

The laws are;

- Commutative law; This implies that when we are to add or multiply numbers, the order of addition or multiplication doesn't matter as we will still get same result.

- Associative law; This implies that if we want to add more than 2 numbers, if we decide to add the first 2 before adding the third one, we will still get the same result as if we added the second one to the third one before adding to the first one. This law also applies to multiplication.

- Distributive law; This implies that when two numbers are multiplied to produce a result, both numbers are factors of the result.

We are told in the question that ; 5n x 1 = 5n

This means that 5n and 1 are factors of 5n and this corresponds to distributive law

Read more at; brainly.in/question/39479409?tbs_match=1

7 0
2 years ago
If angle ABD is 90 degrees. Select all of the angles that measure 42 degrees.
m_a_m_a [10]

Answer:

Measure of angle 2 and angle 4 is 42°.

Step-by-step explanation:

From the figure attached,

m∠ABC = 42°

m(∠ABD) = 90°

m(∠ABD) = m(∠ABC) + m(∠DBC)

90° = 43° + m(∠DBC)

m(∠DBC) = 90 - 43 = 47°

Since ∠ABC ≅ ∠4 [Vertical angles]

m∠ABC = m∠4 = 42°

Since, m∠3 + m∠4 = 90° [Complimentary angles]

m∠3 + 42° = 90°

m∠3 = 90° - 42°

        = 48°

Since, ∠5 ≅ ∠3 [Vertical angles]

m∠5 = m∠3 = 48°

m∠3 + m∠2 = 90° [given that m∠2 + m∠3 = 90°]

m∠2 + 48° = 90°

m∠2 = 90 - 48 = 42°

m∠3+ m∠4 = 90° [Since, ∠3 and ∠4 are the complimentary angles]

48° + m∠4 = 90°

m∠4 = 90 - 48 = 42°

Therefore, ∠2 and ∠4 measure 42°.

5 0
3 years ago
Evaluate 5c+cd when c=1/5 and d=15
Ad libitum [116K]
5c = 1
cd = 3
5c + cd = 4
8 0
3 years ago
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The average kinetic energy of the atoms in an object determines its _____.
Strike441 [17]
I am quite sure that it is B: Temperature
7 0
3 years ago
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No link nor file pease help im crying about these questions
lora16 [44]

Answer:

7

Step-by-step explanation:

10.5*2/3= 3.5*2=7

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3 years ago
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