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3 years ago

Determine whether test point (-6,4) is a solution to the linear inequality x+y_<1

Mathematics

1 answer:

tamaranim1 [39]3 years ago

7 0

$\bf \begin{array}{llll}
-6&,&4\\
\uparrow &&\uparrow \\
x&&y
\end{array}\qquad x+y\le 1\implies -6+4\le 1\implies -2\le 1$

now, is it true that -2 is lesser than 1? if it's true, is a solution, if is false, is not then

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Find the surface area of the sphere in terms of π.

Sergeeva-Olga [200]

Answer:

225 π cm2

Step-by-step explanation:

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3 years ago

S(x)= 22x-8 and f(x)= -5. What is s(x) x f(x)?

zloy xaker [14]

-110x+40
You need to use the distributive property for this problem
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3 years ago

A measurement can be precise without being accurate. <br> a. True<br> b. False

Vanyuwa [196]

The answer is B. false. Being precise in a measurement needs to be accurate and exact in details. without one factor of its doesn't prove that it would be relevant in information because the measurement is not exact and accurate

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4 years ago

aul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shirt

vodomira [7]

Set up a system of equations:

$\text{Total shirts bought}$

$x + y = 9$

$\text{Total cost}$

$10x + 7y = 72$

x represents how many tee shirts were bought, and y represents how many long sleeve shirts were bought.

For the first equation, subtract y from both sides to get x by itself:

$x = 9 - y$

We'll now use substitution. Since x is equal to a value, we can substitute this value for the other equation:

$10(9-y) + 7y = 72$

Distribute the 10 to both terms in parentheses:

$10 \times 9 = 90$

$10 \times -y = -10y$

$90 - 10y +7y = 72$

Combine like terms:

$-10y + 7y = -3y$

$90 - 3y = 72$

Subtract 90 from both sides:

$-3y = -18$

Divide both sides by -3 to get y by itself:

$y = 6$

6 long sleeve shirts were bought.

Now you have a value for y. Input this value into the first equation:

$x + 6 = 9$

Subtract both sides by 6 to get x by itself:

$x = 3$

3 tee shirts were bought.

The answer is B. 3 tee shirts and 6 long sleeve shirts.

4 0

4 years ago

Read 2 more answers

A window-washing crew can wash 10 windows per hour.

aleksklad [387]

The answer is 20 hours.
If window washing crew can finish 10 windows per hour. Let;s solve how many hours will it take him to finish 200 windows.
=> 200 / 10 = 20 hours,

5 0

4 years ago