3 years ago

Write the following as an algebraic expression. Simplify if possible. Add 9x - 8 to 4x - 1.

Mathematics

2 answers:

Naddika [18.5K]3 years ago

7 0

Answer:

13x -9

Step-by-step explanation:

4x-1 + 9x-8

Combine like terms

4x +9x -1-8

13x -9

riadik2000 [5.3K]3 years ago

5 0

Answer:

9x+−8+4x+−1

(9x+4x)+(−8+−1)

13x+−9

Step-by-step explanation:

so sorry if wrong

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Drag the simplified value into the box to match each expression.

Maru [420]

Answer:

The answers are as follows: 12 106 42

Step-by-step explanation:

Given: $18 - 4^2 + 5 \times 2$

Using BODMAS rule (Bracket, Of, Division, Multiplication, Addition and Subtraction) we would calculate $18 - 4^2$ separately and $5 \times 2$ separately and add them. So we have $18 - 16 + 10 = 2 + 10 =12$ .

Now for the second question: $9^2 + 4 \times 7 - 3$ . we would get $81 + 28 - 3 = 106$

Next, $5^2 - 4 + 7 \times 3$ . This could be written as: $25 - 4 + 21 = 42$ . Hence the answers.

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3 years ago

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mixas84 [53]

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Triss [41]

Answer:

5 years

Step-by-step explanation:

N/A

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3 years ago

The sum of the first n consecutive even numbers can be found using S=n2+n, where n≥2. What is the value of n when the sum is 42?

lawyer [7]

Answer:

C. 6

Step-by-step explanation:

<u>Given</u>

S = n² + n
S = 42, n = ?

<u>Substitute and solve for n:</u>

42 = n² + n
n² + 2*1/2n + 1/4 = 42.25
(n + 0.5)² = 42.25
n + 0.5 = √42.25
n + 0.5 = 6.5
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Correct option is C

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3 years ago

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Measure of angle Q is 70 degrees. Find the measure of angle P.

Allushta [10]

Answer:

40 degrees

Step-by-step explanation:

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