Lesson 4 Extra Practice Changes in Dimension 1. Each side length of the rectangle at the right is multiplied by 3. Describe the change in the perimeter. Justify your answer. 2 cm 5 cm 6 yd 2. The base and height of the triangle at the right is multiplied by 4. Describe the change in the area. Justify your answer. 5 yd

Q: Find AB.

A: Let  A=210-3-70-24 and B=4-2011-2005-3-10 The order of a matrix is number of rows× number of…

Q: -5 dx Evaluate 2x 10 A B c) 1 (D) 2

A: formula:

Q: Please show each step mathematically for i, ii

A:

Q: Find R for part A and Part B

A:

Q: Find AB.

A:

Q: Find 2. 2 i

A:

Q: Find x.

A: Sum of exterior angle of a polygon is 360°.

Q: Find the values of sec-1 1.5

A: sec-11.5

Q: To-42 5-2X-3 (6z) odz dy oe aly de

A:

Q: Solve for x. 3 6.

A: x = 4

Q: Solve for X. 10 + X=y

A: Given: 10+x=y To find x

Q: Find w, where w3 = 1 + i. i? = -1.

A:

Q: Find the value of the variable 1/3a = 2

A: Given: 13a=2

Q: Solve for x. 3 11 2

A: Consider the following figure. In above figure AB+BC⋅BC=CD+DE⋅CD.....1

Q: Solve for x. 11 2

A: The value of x is, 19 The detailed solution is as follows below:

Q: đ = , b = , = , d = Find đ +?

A: Given,  a→ = 2, 4b→ = -3, 5c→ = 1, -4d→ = -5, -3 We have to find a→+ c→.

Q: Simplify. (4y²– 2y-3)+(3y²–5y-4)-(8)²-4y-8)

A: Given :

Q: Au = and Aü = -1 then A(-3u- 30)

A: solution is given below

Q: Simplify. [21 -28] 70 -35

A:

Q: .2 y = 4 - x² and x +y = 2.

A:

Q: Complete each step. a'a6 a4 4 - 4 a II II II

A: An exponential expression consist of powers of variables or numbers. An exponent in exponential…

Q: x3 f) x2+2x+1

A:

Q: Select the final image of AABC after the given sequences of transformations. Translate AABC by…

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Q: find az and dz if uv u=1+St, v= S? ta

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Q: |4x dA R.

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Q: Execise,. ドーメ) YR

A: Given : Pdf of x : fX(x) = k(4-x2)         -2≤x≤20                         Otherwise

Q: Solve. (a-4)(a+7)=0

A: We need to solve the equation (a−4)(a+7)=0

Q: Simplify. (²) ² [(15+)-9]

A:

Q: Find sec 78 0

A: Given sec 78 0

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.