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3 years ago

Help please!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

tangare [24]3 years ago

8 0

The answer would be 45

Verizon [17]3 years ago

6 0

The answer would most likely be 45

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Which expressions are equivalent to 4d+6+2d4d+6+2d ? Choose all answers that apply: Choose all answers that apply: (Choice A) A

Sliva [168]

Answer:

Options A and C are correct choices.

Step-by-step explanation:

We have been given an expression $4d+6+2d$ and we are asked to choose all the equivalent expressions from given choices.

Let us simplify our given expression.

$4d+6+2d=(4d+2d)+6$

$4d+6+2d=6d+6$

Let us see which of our given choices matches with our answer.

A. $2(3d+3)$

Upon using distributive property $a(b+c)=a*b+a*c$ we will get,

$2*3d+2*3$

$6d+6$

Therefore, option A is a correct choice.

B. $6(d+6)$

Upon using distributive property $a(b+c)=a*b+a*c$ we will get,

$6*d+6*6$

$6d+36$

Since this expression is not equivalent to our answer, therefore, option B is not a correct choice.

C. $(3d+3)+(3d+3)$

Upon removing parenthesis we will get,

$3d+3+3d+3$

Upon combining like terms we will get,

$(3d+3d)+(3+3)$

$6d+6$

Therefore, option C is the correct choice.

7 0

3 years ago

Describe how you would find the median for a set of data that has 35 values. How would this be different if there were 36 values

777dan777 [17]

Answer:

Step-by-step explanation:

the median for 35 values, you can cross the first one and last one until there is only one value left, with should be the 18ᵗʰ value

the median for 36 values, same thing, but after cross all, there will be 2 values left instead of 1, just find the mean between 2 values.

8 0

3 years ago

Read 2 more answers

The length of a side and corresponding height of a triangle are (x+3) and (2x-5) given that area of triangle is 20cm^2. Find the

vaieri [72.5K]

Answer:

x = 5

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = $\frac{1}{2}$ bh ( b is the base and h is height )

Here A = 20, b = (x + 3) and h = (2x - 5) , then

$\frac{1}{2}$ (x + 3)(2x - 5) = 20 ← multiply both sides by 2

(x + 3)(2x - 5) = 40 ← expand left side using FOIL

2x² + x - 15 = 40 ( subtract 40 from both sides )

2x² + x - 55 = 0 ← in standard form

(x - 5)(2x + 11) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

2x + 11 = 0 ⇒ 2x = - 11 ⇒ x = - 5.5

But x > 0 , so x = 5

8 0

3 years ago

Need Help!!

Rina8888 [55]

Answer:

Q1 -64 Q2 6

Step-by-step explanation:

-4*-4*-4 =-64

so -4^3 = -64

6^1=6

6 0

3 years ago

In the triangle below what is the approximate value of x

sveta [45]

You can solve using the pythagorean theorem which is

a^2+b^2=c^2 where a and b are the legs and c is the hypotenuse in a right triangle.

12^2+x^2=24^2
144+x^2=576
x^2=432
x =20.78 (approximately)

4 0

3 years ago

Read 2 more answers