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Leona [35]
3 years ago
15

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

<h2>B) one solution</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • linear equation
  • PEMDAS
<h3>tips and formulas:</h3>
  • \sf\text{a system of linear equation has only one solution if $\frac{a_1}{a_2}\neq \frac{b_1}{b_2}$}
<h3>given:</h3>
  • \begin{cases}2x - 4y =  - 1 \\ 8x - 11y =  - 19 \end{cases}
<h3>let's solve:</h3>

  1. \sf substitute \: the \: value \: of \: a \: b :  \\  \frac{2}{8}   \ne  \frac{ - 4}{ - 11}  \\

\text{$\therefore$ the system of linear equation has only one solution}

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Someone plz help me lol
riadik2000 [5.3K]

Answer:

the correct anwser is b b cause they both are positive y intercepts

7 0
3 years ago
X/-9 + n/-7 = 9<br> solve for x
Andrews [41]

9514 1404 393

Answer:

  x = -(9/7)n -81

Step-by-step explanation:

Subtract the n term.

  x/-9 = 9 -n/-7

Multiply by -9.

  x = -81 -(9/7)n

6 0
3 years ago
What is the minimum number of students, each of whom comes from one of the 50 states, who must be enrolled in a university to gu
erik [133]

Answer:

4951 students

Step-by-step explanation:

If there was 99 students from each state, that would make the total to be:

99 * 50 = 4950

We can use the pigeon hole principle to make this the minimum number required.

The pigeon hole principle basically tells us that if you have more "pigeons" than "holes" then there must be one hole with multiple objects in it.

So, using this idea, we see that:

we need at least 1 more to ensure this

So, min number required would be

4950 + 1 = 4951

5 0
3 years ago
Simplify the numerical expression 9+3 x 8
Komok [63]

Answer:

33

Step-by-step explanation:

9+3*8=9+24=33

3 0
3 years ago
What is the surface area of a pyramid with a base of 16 and a height of 20
Lemur [1.5K]

Answer: 256 feet

Step-by-step explanation:

Base Surface Area =  162

=  256 feet2

Lateral Surface Area =  

2×16× √

( 16 )2 + 202

2

=  689.30109531322 feet2

Total Surface Area = 945.30109531322 feet2

8 0
3 years ago
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