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4 years ago

What is the value of x 25 points!!!!!!!!!!!!!!!

Mathematics

1 answer:

Orlov [11]4 years ago

4 0

A triangle's interior angles will add up to be 180°. If you take what you have...the 39° and 141°...and add them up to be 141. Subtract the 141 from the 180° and you will get the value of x...

x° = 39°

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The solution of absolute value equation I x - 4 | =6 is...

marin [14]

Can I get brainliest ?

8 0

3 years ago

Solve the given system of equations utilizing either the substitution or addition method.

Nataly [62]

Answer:

Value of x=4 and y=-13/3

Step-by-step explanation:

We need to solve the systems of equations

$5x+3y=7 \ and \ \frac{3}{2}x-\frac{3}{4}y =9\frac{1}{4}$

Solving using substitution method:

Let:

$5x+3y=7---eq(1) \\ \frac{3}{2}x-\frac{3}{4}y =9\frac{1}{4}---eq(2)$

Find value of x from eq(1) and put in eq(2)

$5x+3y=7\\5x=7-3y\\x=\frac{7-3y}{5}$

Put value of x in eq(2)

$\frac{3}{2}(\frac{7-3y}{5}) -\frac{3}{4}y =\frac{37}{4}\\\frac{21-9y}{10} -\frac{3}{4}y =\frac{37}{4}\\Taking \ LCM\\\frac{21*2-9y*2-3y*5}{20} =\frac{37}{4}\\\frac{42-18y-15y}{20} =\frac{37}{4}\\42-33y=\frac{37}{4}*20\\42-33y=185\\-33y=185-42\\-33y=143\\y=\frac{143}{-33}\\y=-\frac{13}{3}$

Now, finding value of x by putting value of y in eq(1)

$x=\frac{7-3y}{5}\\x= \frac{7-3(-\frac{13}{3}) }{5}\\x=\frac{7+13}{5}\\x=\frac{20}{5}\\x=4$

So, Value of x=4 and y=-13/3

4 0

3 years ago

A rain gutter is to be constructed of aluminum sheets 12 inches wide. After marking off a length of 4 inches from each edge, thi

AlexFokin [52]

Just plug in the 30° into that equation.

A(30°) = 16sin(30°)(cos(30°) + 1) 
 = 16(1/2)(1 + √3/2) 
 = Approx 14.9 in² 

So A is the answer.

7 0

3 years ago

Read 2 more answers

A standard die is rolled find the probability that the number rolled is greater than 4 Express your answer as a fraction in lowe

jeka94

Answer:

$\frac{1}{3}$

Step-by-step explanation:

A standard die has 6 numbers, so the probability it will be greater than 4 is 6-4, or 2. Therefore the answer is $\frac{2}{6}$ , but this can be simplified to $\frac{1}{3}$ .

4 0

2 years ago

54 ÷ (−6) A. 9 B. -9 C. -8

sp2606 [1]

Answer:

Option B, -9

Hope this helps!

6 0

3 years ago