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3 years ago

What is the measure of X?

Mathematics

2 answers:

Nonamiya [84]3 years ago

7 0

Answer:

X = 40°

Step-by-step explanation:

angleZ + angleY + angleX = 180° (Angle sum property)

80° + 60° + X° = 180°

140° + X° = 180°

X° = 180° - 140°

X° = 40°

hope it helps!

vlabodo [156]3 years ago

3 0

Answer:

The answer is B.

Step-by-step explanation:

Given that the total angles in a triangle is 180° so in order to find the value of x, you have to substract 60° and 80° from 180° :

$60 + 80 + x = 180$

$140 + x = 180$

$x = 180 - 140$

$x = 40$

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248.92 x 10 to 4th power

Karo-lina-s [1.5K]

Answer:

2489200

Step-by-step explanation:

First you have 248.92. You also have 10^4

Your equation should look like 248.92 * 10^4

Calculate using a calculator and you should arrive at the answer 2,489,200.

7 0

3 years ago

Read 2 more answers

Find the approximate side length of a square game board with an area of 105 in2.

aleksley [76]

Answer:

Rounded to the nearest inch: 10

Rounded to the nearest tenth: 10.2

Rounded to the nearest hundredth: 10.25

Step-by-step explanation:

To find the area of a square, we multiply the side length by itself, or in other words, SQUARE the side length!

$A=s^2$

We are given the area, so plugging that into our equation looks like this:

$105=s^2$

To eliminate the exponent, take the square root of both sides of the equation!

$\sqrt{105}=s$

From here, there are a few paths to take, depending on what your teacher is looking for. I will evaluate the approximate of the square root by finding the nearest perfect squares.

The nearest perfect square less than √105 is √100, and the nearest perfect square greater than √105 is √121.

105 is closer to 100 than to 121, so √105 is closer to √100.

√100 is equal to 10, so the √105 is approximately 10 inches!

Using a calculator to check:

$\sqrt{105}=10.247$ inches

8 0

1 year ago

Find the ratio a:c if <br>a:b = 1:2, b:d = 4:5, d:c = 3:1<br>

Makovka662 [10]

Answer:

a : c = 6 : 5

Step-by-step explanation:

Expressing the ratios in fractional form, then

$\frac{a}{c}$ = $\frac{a}{b}$ × $\frac{b}{d}$ × $\frac{d}{c}$ = $\frac{1}{2}$ × $\frac{4}{5}$ × $\frac{3}{1}$ = $\frac{12}{10}$ = $\frac{6}{5}$

Thus a : c = 6 : 5

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3 years ago

Group Work 2.6 Newton's Law of Cooling states that an object cools at a rate proportional to the difference between the temperat

Airida [17]

Answer:

ΔT = ΔT0 e^-K T

As I understand Newton's Law of Cooling

ΔT at any time is the difference between the temperature and the surroundings

Originally ΔT0 = 95 - 22 difference between 95 and room temperature

65 - 22 = 33 = 73 e^-KT where t is time to cool to 65 deg

ln (33/73) = -KT K = .794 / 5 = .159 where 5 is time to cool to 65 deg

40 - 22 = 73 e^-.159 T where t is time to cool to 40 deg

18 = 73 e^-.159 T

ln (18 / 73) = -.159 T

T = 8.8 min

It would take 8.8 min for the object to cool to 40 deg C

Suppose the object cooled from 95 to 90 deg, then

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7 0

2 years ago

Read 2 more answers

Simplify (5^0+4^-0•5)^2

TEA [102]

Answer:

anything raised to the power of zero= 1

(1+1/4^½)²

(1 + 1/2)²

(3/2)²

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2 years ago