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lidiya [134]
3 years ago
12

-Simplify the expression. 2(-y + 9) + 8y

Mathematics
1 answer:
Nata [24]3 years ago
4 0

Answer:

first we open the brackets using two so our new expression will be -2y+ 18 + 8y collect the like terms -2 y + 8 y + 18 so your final answer will be 6 y + 18 if you have any questions regarding this just ask

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I'm really confused on this question..could anybody help?
DerKrebs [107]
Okay, so for example, A. A which equals 0.75 can be put in between 0 and 1 but closer to 1 by a little bit. They are just asking you to graph it, thats all.
7 0
3 years ago
Need help finding measure of angle R.
Hunter-Best [27]

Answer:

B.) 113°

Step-by-step explanation:

In the isosceles trapezoid, angles T and S are congruent. Find the value of x:

4x+7=7x-38

Subtract 4x from both sides:

4x-4x+7=7x-38-4x\\7=3x-38

Add 38 to both sides:

7+38=3x-38+38\\45=3x

Divide both sides by 3:

\frac{45}{3}=\frac{3x}{3}\\\\  15=x\\\\x=15

x is equal to 15. Now substitute the value of x into the one of the expressions:

4(15)+7\\60+7\\67

or

7(15)-38\\105-38\\67

The angles T and S are 67°.

The angles of a trapezoid will always add up to a total of 360°, so add the angles T and S:

67+67=134

Subtract their total from 360:

360-134=226

The total of the angles Q and R is 226°. Since this is an isosceles trapezoid, those two angles are also congruent. Divide the value by 2:

\frac{226}{2}= 113

Angle R is 113°.

Done.

7 0
3 years ago
A laboratory animal may eat any one of three foods each day. Laboratory records show that if the animal chooses one food on one
taurus [48]

Answer:

P= \left[\begin{array}{ccc}0.5&0.25&0.25\\0.25&0.5&0.25\\0.25&0.25&0.5\end{array}\right]

Step-by-step explanation:

let a, b and c be the type of foods used in trail.

Example matrix combination for (1,1) is (a,a) is 0.5. Another Example for (1,2) is (a,b) is 0.25.

The diagonals are (a,a), (b,b) and (c,c) which means same food in two trails and its probability is 0.5. the rest would be 0.25

Therefore, stochastic matrix would have 3 by 3 matrix such as (a,a), (a,b) .... (c,c)

\left[\begin{array}{ccc}0.5&0.25&0.25\\0.25&0.5&0.25\\0.25&0.25&0.5\end{array}\right] \\

3 0
3 years ago
Patel bought a model rocket kit from a catalog. The
tankabanditka [31]

Answer:

7 weeks

Step-by-step explanation:

add 10 to 125 then divide by 20

5 0
3 years ago
Read 2 more answers
Connecticut has about thesame population as iowa but its area is 4875 square miles
Aliun [14]

that's very interesting!! is there more to your question that we can answer?


5 0
4 years ago
Read 2 more answers
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