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2 years ago

Please help with all of question 4.

Mathematics

1 answer:

olga55 [171]2 years ago

6 0

Answer:

Step-by-step explanation:

Combine like terms: Like terms have same variable with same power and to combine the like terms, add/subtract the co efficient of the variables.

<h3>Perimeter:</h3>

Perimeter = sum of all sides

a) Perimeter of ΔABC = AB + BC + CA

= x + 14 + x + 14 + x + 14

= x + x + x + 14 + 14 + 14 {Combine like terms}

= 3x + 42

b) EF = DI - GH

= 2x + 3 - x

= 2x - x + 3

= x + 3

c) FG = HI - ED

= 12 + 2x - (x + 5)

= 12 + 2x - x - 5 {To open the brackets, (-1) is distributed to x and 5}

= 12 - 5 + 2x - x

= 7 + x

d) Perimeter of DEFGHI = DE + EF + FG + GH + HI + ID

= x + 5 + x + 3 + 7 +x + x + 12 +2x + 2x + 3

= x +x + x + x + 2x + 2x + 5 + 3 + 7 + 3 + 12

= 8x + 30

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Mrac [35]

Answer:

The coordinates of H′ are (-2,0).

Step-by-step explanation:

It is given that square EFGH stretches vertically by a factor of 2.5 with respect to the x-axis to create rectangle E′F′G′H′.

If a figure stretches vertically by a factor of 2.5 with respect to the x-axis, then the x-coordinates remains same and the points which lie on the axis are also remains the same after stretch.

It is given that the coordinates of H are (-2,0). This point lie on the x-axis, therefore it will remains the same after stretch.

Therefore the coordinates of H′ are (-2,0).

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3 years ago

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jonny [76]

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4 years ago

Which of the following is the inverse relation of the set below? {(–2,3), (7,–4), (3,7), (8,4)} Question 4 options: a. {(7,–2),

Lubov Fominskaja [6]

Answer:

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3 years ago

The city is issuing bonds to raise money for a building project. You obtain a $6700 bond that pays 6% interest annually that mat

kati45 [8]

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Simple interest and compound interest are both included in the interest formula. Interest is the cost a borrower pays a lender for a loan. This additional sum, or the interest, must be paid in addition to the loan itself. The Simple Interest Formula and the Compound Interest Formula are both discussed in the interest formula Compound Interest Formula. The interest formula for both is

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1 year ago

The diagram shows rectangle ABCD, with diagnal BD. What is the perimeter of rectangle ABCS, to the nearest tenth?

Natalka [10]

Answer:

Perimeter of rectangle ABCD = 32.8 unit (Approx.)

Step-by-step explanation:

Given:

Hypotenuse BD = 12 unit

Angle θ = 30°

Find:

Perimeter of rectangle ABCD

Computation:

Using trigonometry function

Sin θ = Perpendicular / Hypotenuse

Sin 30 = CD / BD

0.5 = CD / 12

Length of CD = 6 unit

Cos θ = Base / Hypotenuse

Sin 30 = BC / BD

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Perimeter of rectangle ABCD = 32.8 unit (Approx.)

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3 years ago

Please help with all of question 4.​

Please help with all of question 4.