Which of the following is one way the expressionZ n can be rewritten using summation properties?181 46(47)2 T 21 64(65)1 (64 (65)) 1 17 (18)1 (64 (65) 1 19 (20)

Answers

Answer 1

Answer: The answer is the third option.

The solution is in the pdf file attached. Please, let me know if you can follow the steps.

Answer 2

Answer:

the answer is C

Step-by-step explanation:

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The quadrilaterals JkLM and PQRS are similar.find the length x of QR.

Answers

Two quadrilaterals are similar if corresponding sides taken in the same sequence (even if clockwise for one quadriateral and counterclockwise for the other) are proportional and corresponding angles taken in the same sequence are equal in measure.
If the quadrilaterals JKLM and PQRS are similar, then

$(JK)/(PQ) = (KL)/(QR) = (LM)/(RS) = (JM)/(PS)$ .
Hence
$(4)/(QR) = (3)/(4.8) = (5)/(8) = (3)/(4.8)$ and
$QR= (4\cdot 8)/(5) =6.4$ .

3/4.8=4/x
3x=19.2
x=6.4

To keep her grades up madeline must earn more than 80 points on her science fair project. Let p represent the number of points she could earn.

Answers

Answer:

$p > 80$

Step-by-step explanation:

Given

Points = More than 80

Required [Missing from the question]

Represent as an inequality

Let p represents the number of points.

More than means greater than i.e. >

Hence, more than 80 is represented as;

$p > 80$

-1≤ 3x-10≤ 2 please help me

Answers

Answer:

3≤ x≤ 4

Step-by-step explanation:

-1≤ 3x-10≤ 2

Add 10 to each side

-1+10≤ 3x-10+10≤ 2+10

9≤ 3x≤ 12

Divide each side by 3

9/3≤ 3x/3≤ 12/3

3≤ x≤ 4

Answer:

3 ≤ x ≤ 4

Step-by-step explanation:

Step 1: Add 10 to all parts/sections.

$-1 + 10 \leq 3x - 10 + 10 \leq 2+10$
$9\leq 3x\leq 12$

Step 2: Divide all parts/sections by 3.

$(9)/(3) \leq (3x)/(3) \leq (12)/(3)$
$3 \leq x \leq 4$

Therefore, the answer is 3 ≤ x ≤ 4.

If 3/2is a zero of the polynomial 2x²+kx-12, then find the value of

Answers

Step-by-step explanation:

I suppose you are looking for the value of 'k'

if 3/2 is a zero, then putting in ' 3/2' for x will make the equation = 0

2 (3/2)^2 + 3/2 k -12 = 0 solve for 'k'

18/4 + 3/2 k = 12

3/2 k = (12 - 18/4)

k = (12- 18/4) / (3/2) = 5

Divide. Write the answer in simplest form.\frac{5}{6}\div4
6
5

÷4

Answers

Answer:

3/10

Step-by-step explanation:

Let f(x) = 12 over the quantity of 4 x + 2. Find f(−1).

Answers

The value of f(-1) is -6

what is function?

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output.

Given:

f(x) = 12/ (4x +2)

for x=-1

then,

f(-1) = 12/ ( 4(-1) + 2)

f(-1) = 12/ (-4 + 2)

f(-1) = 12/(-2)

f(-1) = -12/2

f(-1) = -6

Hence, the value of f(-1) is -6

Learn more about function here:

brainly.com/question/23712366