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Likurg_2 [28]
3 years ago
9

A variable needs to be eliminated to solve the system of equations below. Choose the correct first step. - 9x + 107=-126 — 9x —

бу = 18​
Mathematics
1 answer:
Svetach [21]3 years ago
4 0

Answer:

fbi open up hujuiiiiii>hhhhh

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HELP PLEASE
Alex Ar [27]
Answer: 1/5 x = 10 * 1/5. 1/5x = 2. x = 2*5 = 10

7 0
4 years ago
Read 2 more answers
A right triangle has side lengths 5, 12, and 13 as shown below. Use these lengths to find Cos B, tan B, and Sin B
DochEvi [55]
This should do it...hope it helps!!

7 0
3 years ago
Danieli bought 2 1/2 yards of fabric to make a costume what is the length of the fabric in feet and inches show your work
AysviL [449]

Answer:

7.5 feet and 90 inches

Step-by-step explanation:

you take 2.5 and multiply it by 3 because there are 3 feet in a yard to get 7.5. then take 7.5 and multiply it by 12 to get 90 inches

5 0
2 years ago
Solve the equation. Write your answer as an integer or simplified fraction.
saw5 [17]

<u>Corrected question :</u>

Solve the equation. Write your answer as an integer or simplified fraction.

  • 8n - 7 (n - 2) = 18

<u>Required Solution :</u>

The given equation,

  • 8n - 7 (n - 2) = 18

★ Multiplying -7 into (n - 2),

>> 8n - 7 × (n - 2) = 18

>> 8n - 7n + 14 = 18

★ On substracting 7n from 8n we gets,

>> n + 14 = 18

★ Now transposing 14 which is in L.H.S. into R.H.S. (Remember that sign would be . So 14 would be -14),

>> n = 18 - 14

>> n = 14

★ Therefore,

  • Value of n is 14.

<u>Learn</u><u> more</u><u> from</u><u> brainly</u><u>.</u><u>c</u><u>o</u><u>m</u><u> </u><u>:</u>

brainly.com/question/27432186

brainly.com/question/22661149

brainly.com/question/26727230

6 0
2 years ago
Given right triangle QRS, what is the value of sin(30°)? StartFraction StartRoot 3 EndRoot Over 3 EndFraction One-half StartFrac
baherus [9]

Answer:

Option 2: \sin(30)=\frac{1}{2}

Step-by-step explanation:

Given:

From the triangle shown below;

A triangle QRS with angle QRS = 90°, ∠QSR = 30°.

Side QR = 5, SQ = 10 and RS = 5√3

Now, we know from trigonometric ratio that,

\sin (A) = \frac{Opposite\ side}{Hypotenuse}

Here, opposite side of angle QSR is QR and Hypotenuse is the side opposite angle QRS which is SQ. Therefore,

\sin(\angle QSR)=\dfrac{QR}{SQ}\\\\\\\sin(30)=\dfrac{5}{10}\\\\\\\sin(30)=\dfrac{5}{2\times 5}=\dfrac{1}{2}

Therefore, the value of sine of 30° is one-half. So, second option is correct.

6 0
3 years ago
Read 2 more answers
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