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maw [93]
2 years ago
11

Select the correct answer.

Mathematics
2 answers:
MrRa [10]2 years ago
7 0

Answer:

b was right

Step-by-step explanation:

Masja [62]2 years ago
6 0

Answer:

A

Step-by-step explanation: Got it right just now

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In order to solve the system of equations below, Harvey multiplies each equation by a constant to eliminate the x terms.
Karo-lina-s [1.5K]

Answer:

<u>The correct answer is A. 14 x + 6 y = 10. Negative 14 x minus 35 y = 77</u>

Step-by-step explanation:

Let's find out the constants to eliminate the x terms

7 x + 3 y = 5

2 x + 5 y = negative 11

Let's multiply the first equation by 2 and the second one by -7, this way:

2 * (7 x + 3 y = 5)

-7 * (2 x + 5 y = negative 11)

14x + 6y = 10

-14x - 35y = 77

<u>The correct answer is A. 14 x + 6 y = 10. Negative 14 x minus 35 y = 77</u>

5 0
3 years ago
Read 2 more answers
If m∠UNR = 180° find m∠RNS<br> A. 27°<br> B. 34°<br> C. 59°<br> D. 94°
LenaWriter [7]

Answer:

Option A) m∠RNS=27°

Step-by-step explanation:

We know that m∠UNR = 180°. This tells us that the Sum of the enclosed angles should equal 180°, by trigonometry. So the enclosed angles are:

m∠RNS = (3x+6)^{o}

m∠SNT= (13x+3)^{o}

m∠TNU= (10x-11)^{o}

Now let us add all the angles and solve for the value of x as follow:

m_{RSN}+m_{SNT}+m_{TNU}=m_{UNR}\\\\(3x+6)+(13x+3)+(10x-11)=180\\\\3x+13x+10x+6+3-11=180\\\\26x-2=180\\\\26x=180+2\\\\26x=182\\\\

x=\frac{182}{26} \\\\x=7

Now lets plug in the value into the expression for angle m∠RNS to find the angle as:

RNS = (3x+6)^{o}\\\\RNS=(3(7)+6)^{o}\\\\RNS=(21+6)^{o}\\\\RNS=27^{o}

Thus Option A. is the correct answer.

7 0
2 years ago
In a standard deck of cards there are 13 spades, 13 clubs, 13 hearts, and 13 diamonds. The spades and the clubs are black and th
Mazyrski [523]
<span>26 black cards of out 52 

probability that a black card is chosen first = 26/52 = 1/2

</span>there are 13 heart
with replaced

The probability of then drawing a heart is 13/52 = 1/4 then
<span>the probability that a black card is chosen first and a heart is chosen second
= </span>(1/2)(1/4) = 1/8

answer
1/8
3 0
3 years ago
Read 2 more answers
____ property allows you to regroup terms using parentheses when adding or multiplying, without changing the answer
Alchen [17]
Commutative property
5 0
3 years ago
Read 2 more answers
How do you do this?!<br> (2w-1)/(4)=(2-w)
nikklg [1K]

Answer:

w = 3 is your answer.

Step-by-step explanation:

You want to get w by itself.

<em>(2w - 1)/(4) = 2 - w         </em><u>You will add the w on both sides.</u>

<em>(3w - 1)/(4) = 2                </em><u>You will multiply 4 on both sides.</u>

<em>3w - 1 = 8                       </em><u>You will add 1 on both sides.</u>

<em>3w = 9                            </em><u>You will divide 3 on both sides.</u>

w = 3 is your answer.

6 0
2 years ago
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