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Sedbober [7]
3 years ago
11

Please welp me I need help

Mathematics
2 answers:
Aleksandr [31]3 years ago
8 0

Answer:

18

Step-by-step explanation:

Thepotemich [5.8K]3 years ago
6 0
It would be 18 have a great day
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Tollowing:<br> a)<br> 3x + 4 = 9.5<br> 7 + 2x =<br> b)<br> = 5
Vera_Pavlovna [14]

See attachment for math work and answer.

8 0
3 years ago
Lane invests $7,000, at 7% interest, compounded annually for 22 years. Calculate the compound interest for his investment.
amm1812

\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$7000\\ r=rate\to 7\%\to \frac{7}{100}\dotfill &0.07\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &22 \end{cases} \\\\\\ A=7000\left(1+\frac{0.07}{1}\right)^{1\cdot 22}\implies A=7000(1.07)^{22}\implies A\approx 31012.81

6 0
3 years ago
The first few steps in deriving the quadratic formula are shown.
Kisachek [45]

In the first few steps for deriving the quadratic formula left side of the equation due to the distributive property for balancing the equation.

<h3>What is quadratic equation?</h3>

A quadratic equation is the equation in which the highest power of the variable is two.

Here, The first few steps in deriving the quadratic formula are shown in the table.

Use the substitution property of equality to solve it further,

-c=-ax² +bx

Now factor out the term a, to solve further as,

    - c = a (x² + b/a x)

for half of the b value and square it to determine the constant of the perfect square trinomial as,

     (b/2a)² = b²/4a²

Now  the distributive property needs to be applied to determine the value to add to the left side of the equation to balance the sides of the equation.

  -c + b²/4a² = a(x² + b/a x + b²/4a² )

Thus, the distributive property needs to be applied to determine the value to add to the left side of the equation to balance the sides of the equation.

Learn more about Quadratic equation from:

brainly.com/question/14336752

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7 0
2 years ago
Find the complement of the angle shown. Find the supplement of the angle shown
marta [7]
The complement is equal to 90 so the complement to 70 is 20. the supplement adds to 180 so the supplement to 70 is 110. if you are talking about x... it’s an isosceles triangle so the base angles are the same and the angles in a triangle add to 180 so 180-(70+70)=40 so x=40 so the complements is 50 and the supplement is 150
5 0
4 years ago
Read 2 more answers
Plz help i will give branlyist to first right answer
RideAnS [48]
P = (2.5,0)
T=(-1.5,-1)
Point R is located (1.5 -2.5)
5 0
3 years ago
Read 2 more answers
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