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Ugo [173]
3 years ago
11

Find the value of x I need help

Mathematics
1 answer:
astra-53 [7]3 years ago
3 0

Answer:

x =35

Step-by-step explanation:

The sum of the angles of a triangle add to 180

x+10 +x + 3x-5 = 180

Combine like terms

5x+5 = 180

Subtract 5 from each side

5x+5-5 =180-5

5x = 175

Divide by 5

5x/5 =175/5

x =35

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Look at pic and answer pls
PtichkaEL [24]

(a)  x^{-5}

(b)  3x^{-7}

(c)  $\frac{4}{3}x^4

Solution:

To write each of the given expression in the form ax^n:

(a)  \frac{x^3}{x^8}

Using exponential rule: \frac{a^x}{a^y}=a^{x-y}

$\frac{x^3}{x^8}=x^{3-8}

$\frac{x^3}{x^8}=x^{-5}

(b) \frac{6x}{2x^8}

Divide numerator and denominator by the common factor 2, we get

$\frac{6x}{2x^8}=\frac{3x}{x^8}

Using exponential rule: \frac{a^x}{a^y}=a^{x-y}

      $=3x^{1-8}

$\frac{6x}{2x^8} =3x^{-7}

(c)  \frac{28x^6}{21x^2}

Divide numerator and denominator by the common factor 7, we get

$\frac{28x^6}{21x^2}=\frac{4x^6}{3x^2}

Using exponential rule: \frac{a^x}{a^y}=a^{x-y}

        $=\frac{4}{3}x^{6-2}

$\frac{28x^6}{21x^2}=\frac{4}{3}x^4

8 0
3 years ago
What is 8x + 16 + xy + 2y as factor each expression completely.
liraira [26]

Answer:

( x + 2 ) ( 8 + y )

Step-by-step explanation:

8 0
3 years ago
Tom has a fair spinner with six sides. They are labelled red, red, blue, green, red, blue. Choose the word that best describes t
s344n2d4d5 [400]

Answer:

It is MOST LIKELY NOT going to land on green.

Step-by-step explanation:

Since the spinner has 6 sides, the total possible outcome is 6. There are 3 reds, 2 blues and 1 green.

The probability that the spinner will land on a green is \frac{1}{6}. But since we are looking for the probability that it won't land on green, we have 1 $-$ \frac{1}{6} = \frac{5}{6}

From here we can best describe the likelihood that the spinner will land on a colour not green as: it is MOST LIKELY NOT going to land on green

6 0
3 years ago
How many 4/10+7/100=
Mashutka [201]
The answer is 47/100 or it could also be 0.47
7 0
3 years ago
Read 2 more answers
The area of a circle is 100π ft². What is the circumference, in feet? express your answer in terms of \piπ
Bond [772]

Answer:

20π ft

Step-by-step explanation:

To find the circumference of the circle given its area, first find its radius.

\textcolor{steelblue}{\boxed{\text{Area of circle =}\pi  {r}^{2} }}

Substitute given area into the formula:

100π= πr²

Divide both sides by π:

100= r²

Square root both sides:

r =  \sqrt{100}

r= 10 ft

\textcolor{steelblue}{\boxed{\text{Circumference of circle = }2\pi  {r}}}

Since we have found the value of the radius, we can substitute r= 10 into the formula above to find the circumference.

Circumference of circle

= 2(π)(10)

= 20π ft

8 0
2 years ago
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