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3 years ago

The system of equations shown below is graphed on a coordinate grid:

Mathematics

2 answers:

UNO [17]3 years ago

5 0

i know i'm a little late but the correct answer was D.

Sladkaya [172]3 years ago

3 0

Well the solution is (-3, 3). So I hope that with that you can find which statement is true on your own.

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Pls help fastBelow!!!!

julsineya [31]

So the scale is 3/4 cm for every 6 meters

So if you have 8 cm, we want to find the dimension of the actual wall

convert cm to meters

0.75 cm = 0.0075 meters

8 cm = 0.08 meters

$\frac{0.0075}{6} = \frac{0.08}{x}$

Cross Multiply

0.0075x = 0.48

x = 64 meters

6 0

4 years ago

How much less than 3x2−7x+9 is 2x2+4x−8? What is the value of the result when x=2?

DIA [1.3K]

3x^2 - 7x + 9 - (2x^2 + 4x - 8).....distribute the - thru the parenthesis
3x^2 - 7x + 9 - 2x^2 - 4x + 8....combine like terms
x^2 - 11x + 17 <== this is how much less it is

x^2 - 11x + 17.....when x = 2
2^2 - 11(2) + 17 =
4 - 22 + 17 =
21 - 22 =
-1 <====

6 0

4 years ago

Answer Part A and Part B for the triangle shown

Tom [10]

Answer:

for Part A

Answer is C.

Step-by-step explanation:

$\tan(a) = \frac{opposite}{adjacent } \\$

Here the angle, a is 60°, Opposite is 20 and adjacent is x.

Therefore we have,

$\tan(60 ) = \frac{20}{x}$

Making x the subject gives us

$x = \frac{20}{ \tan(60) }$

Part B

Value of x to the nearest tenth

$x = 11.547 \\ to \: the \: nearest \: tenth \\ x = 12$

5 0

3 years ago

Future value of 10% savings from earnings of1470 earning 3.5% annual interest compounded monthly for 25 years

Leviafan [203]

hmmm so let's see first how much is 10% of the earnings of 1470.

$\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{10\% of 1470}}{\left( \cfrac{10}{100} \right)1470}\implies 147$

so then

$~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$147\\ r=rate\to 3.5\%\to \frac{3.5}{100}\dotfill &0.035\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &25 \end{cases}$

$A=147\left(1+\frac{0.035}{12}\right)^{12\cdot 25}\implies A=147\left( \frac{2407}{2400} \right)^{300}\implies \boxed{A\approx 352.19}$

8 0

2 years ago

Kari bought 3 boxes of cookies to share with a book club. Each box contains 12 cookies. The expression

Paha777 [63]

Answer: 7 people, 10 people and 11 people

Step-by-step explanation:

5 0

3 years ago