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Mariulka [41]
1 year ago
12

10. Use graphing to find the solutions to the system of equations. - x² + y = 1 -x+y=2

Mathematics
1 answer:
KIM [24]1 year ago
8 0

Answer:

The equations that can be graphed are;

y₁=log(2x+1)  and y₂=3x-2

Step-by-step explanation:

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How to check the correctness of a subtraction answer
Dima020 [189]

well lets say i have to subtract 34 and 20 which is 14 so i would take the sum and the subtractor which is 20 the i would do 20 plus 14 which is 34

Hope this helps!

8 0
4 years ago
Read 2 more answers
15-16) 4, 6, 9, 11, 14, 16, _____, 21, ______
True [87]

Answer:

first pattern: +2, +3 (repeated)

first missing terms: 19, 24

second pattern:  *2, +1

second missing terms: 30, 31

Step-by-step explanation:

first pattern:

1. subtract the second term with the first, (6-4=2) then then third with the second (9-6=3).

2. repeat until to prove the pattern, +2, +3

3. apply pattern to missing term, (16+2=19) and (21+3=24)

second pattern:

1. since subtracting the terms does not give us a pattern, try dividing when possible, (6/3=2) and (14/7=2). then subtract the other terms (7-6=1) and (15-14=1)

2. find pattern from calculation, *2, +1.

3. apply pattern to missing terms, (15*2=30) and (30+1=31).

hope this helped! ♡

3 0
2 years ago
find the area of an equilateral triangle whose side measures 7 units. find the area to the nearest tenth of square unit
Eddi Din [679]

\bf \textit{area of an equilateral triangle}\\\\
A=\cfrac{s^2\sqrt{3}}{4}~~
\begin{cases}
s=side's~length\\[-0.5em]
\hrulefill\\
s=7
\end{cases}\implies A=\cfrac{7^2\sqrt{3}}{4}\implies A=\cfrac{49\sqrt{3}}{4}
\\\\\\
A\approx 21.21762239271874684571\implies A = \stackrel{rounded~up}{21.2}

8 0
3 years ago
Bret saw a coat on sale for $28.55 it was originally priced at $33.59 what was the percent decrease in the price of the coat
marishachu [46]
It should be an 84.99% of decrease, or 85% of decrease if rounded. You can simply use the is/of=%/100 formula and input the values to solve the equation.
7 0
4 years ago
Which of the following is correct about the following functions 5x2+23x+12
aalyn [17]

We are given a quadratic equation to solve.

This requires our knowledge of factorization.

The factorization of the quadratic equation is given below:

\begin{gathered} 5x^2+23x+12 \\ \text{This can also be written as} \\  \\ 5x^2+20x+3x+12 \\ \text{factorizing this} \\ 5x(x+4)+3(x+4) \\  \\ \text{factorizing even further} \\ (5x+3)(x+4) \end{gathered}

To find the root of the quadratic equation, we equate the factorized form to zero

\begin{gathered} (5x+3)(x+4)=0 \\ \text{If two numbers multiply to give zero, it means:} \\ \text{either one must be zero or both are zero} \\  \\ \therefore5x+3=0\text{   or} \\ x+4=0 \\  \\ \therefore x=-\frac{3}{5}\text{ or -4} \end{gathered}

The factored form is:

(5x + 3)(x + 4)

The roots are:

x = -3/5 or x = -4

8 0
1 year ago
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