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maria [59]
3 years ago
11

7b Evaluate when b= -1 b-3

Mathematics
1 answer:
tiny-mole [99]3 years ago
5 0

Answer:

b-3

-1-3

-4

is the correct answer

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Need help checking my answers
kifflom [539]

Answer:

Step-by-step explanation:

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Look at the photo below for the answer,

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6 0
3 years ago
Find the 20th term in arithmetic sequence -4, 1, 6, 11, 16,
givi [52]
91, I just kept adding 5 until I got to the 20th term

7 0
3 years ago
BRAINLIEST TO FIRST CORRECT ANSWER!!
sineoko [7]

Answer:

57\:\mathrm{km}

Step-by-step explanation:

Since the question implies his truck travels at a constant distance per gallon, we can set up the following proportion to find how much father his truck can go.

Let x represent how much farther his truck can go, in kilometers:

\frac{2}{76}=\frac{1.5}{x}

Cross-multiplying, we get:

2x=76\cdot 1.5,\\x=\frac{76\cdot 1.5}{2}=\boxed{57\:\mathrm{km}}

6 0
3 years ago
Read 2 more answers
C. How many pieces of siding need to be purchased? Justify your reasoning.
Mademuasel [1]

Answer:14025

Step-by-step explanation:

Because 25x33x17=14025

4 0
3 years ago
Read 2 more answers
How many solutions does the system of equations have? Pls help :(
goldfiish [28.3K]

Given the system of equations below:

\large{ \begin{cases} y = 2x + 1 \\  - 4x + 2y = 2 \end{cases}}

The first equation is y-isolated so we can substitute in the second equation.

\large{ - 4x + 2(2x + 1) = 2}

Use the distribution property to expand in and simplify.

\large{ - 4x + 4x + 2 =  2} \\  \large{0 + 2 = 2 \longrightarrow 2 = 2}

The another method is to divide the second equation by 2.

\large{ \frac{ - 4x}{2}  +  \frac{2y}{2}  =  \frac{2}{2} } \\  \large{ - 2x + y = 1}

Arrange in the form of y = mx+b.

\large{y = 1 + 2x \longrightarrow y = 2x + 1}

When we finally arrange, compare the equation to the first equation. Both equations are the same which mean that both graphs are also same and intersect each others infinitely.

For more information, when the both sides are equal for equation - the answer would be infinitely many. If both sides aren't equal (0 = 4 for example) - the answer would be none. If the equation can be solved for a variable then it'd be one solution.

Answer

  • Infinitely Many

Hope this helps. Let me know if you have any doubts!

3 0
3 years ago
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