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2 years ago

Write and evaluate algebraic expressions

Mathematics

1 answer:

Sloan [31]2 years ago

7 0

Answer:

9b+10s

Step-by-step explanation:

you are trying to find an expression for total cost after an unknown amount of hours. you need to multiply the number of hours (defined as b and s in this example) by the cost per hour given ($9/hr for the bike and $10/hr for the scooter).

this would result in the following expression: total cost=9b+10s

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Simplify each algebraic expression by combing like terms 7x^2-5x+10x-8x^2

castortr0y [4]

Answer: -x^2 + 15x

Step-by-step explanation:

8 0

3 years ago

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Which of the following are true

Eva8 [605]

I cannot see the question

6 0

3 years ago

If RH = 10 units, HT = 16 units, and GH = 8 units, what is the length of line segment HJ?

Dominik [7]

Answer:

$HJ=20\ units$

Step-by-step explanation:

The complete question is

RT and GJ are chords that intersect at point H. If RH = 10 units, HT = 16 units, and GH = 8 units, what is the length of line segment HJ? 18 units 20 units 26 units 28 units

we know that

The intersecting chords theorem is a statement that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal

In this problem

$(RH)(HT)=(GH)(HJ)$

substitute the given values

$(10)(16)=(8)(HJ)$

solve for HJ

$HJ=160/8\\HJ=20\ units$

7 0

3 years ago

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Which expression are equivalent to -3(2w+6)-4

irga5000 [103]

Answer:

B. 2(-3w+(-11)

Step-by-step explanation:

-3(2w+6)-4=

-6w-18-4=

-6w-22=

2(-3w+(-11)

7 0

3 years ago

Use the pattern below for questions 6 - 8.

Yuliya22 [10]

Answer:

See below

Step-by-step explanation:

The sequence given

6, 19, 58, 175

We see the pattern: triple the previous term plus 1

2) 19 = 6*3 + 1
3) 58 = 19*3 + 1
4) 175 = 58*3 + 1

Next two terms

5) 175*3 + 1 = 526
6) 526*3 + 1 = 1579

Following two terms

7) 1579*3 + 1 = 4738
8) 4738*3 + 1 = 14215

4 0

3 years ago