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soldier1979 [14.2K]
3 years ago
9

Work out the angle of x ? Does anyone know how to do this..

Mathematics
1 answer:
insens350 [35]3 years ago
5 0

Answer:

x = 45°

Step-by-step explanation:

From the triangle given in the picture,

It's given that two sides of the triangle are equal so the triangle is an isosceles triangle.

By the property of isosceles triangle,

Opposite angles of the equal sides are equal in measure.

By triangle sum theorem,

x + x + 90° = 180°

2x + 90 = 180

2x = 180 - 90

x = \frac{90}{2}

x = 45°

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Your answer<br> What is the greatest common factor of 12 and 24?<br> Your answer<br> 6
anastassius [24]

Answer:

yes it is 6

Step-by-step explanation:

Both are even numbers and caan be divided by 6 win 24 is divided by two I equals 12.

8 0
3 years ago
Write down the exact value of:<br> a) cos 90 <br> b) sin 90<br> c) tan 0
viktelen [127]

Answer:

The exact value of

cos90 is 0

sin90 is 1

tan90 is indeterminate.

3 0
3 years ago
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Josie buys a necklace for $24 which is 80% off. How much was the full price of the necklace
Sedbober [7]

Answer:

4.8

Step-by-step explanation:

6 0
3 years ago
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You order two servings of pancakes and a fruit cup. The cost of the fruit cup is $1.50 you leave a 15% tip. Your total bill is $
soldier1979 [14.2K]
<span>1.       </span><span>Your total cost if 11.50 dollars.
It says that you ordered pancakes and a fruit cup
Pancake costs = x
Fruit cup cost = 1.50 dollars
you leave a tip = 15%

The equation would be:
=> (1.50 + x) .15 = 11.50 dollars
=> x = 11.50 – 1.50 x .15
=>  Now, let’s find the cost of the pancake
=> 11.50 - 1.50 fruit cake = 10
=> 10 x .15 tip = 8.5
Thus, the price of the pancake is 8.5</span>



7 0
3 years ago
Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to
3241004551 [841]

Answer:

There is sufficient evidence that fuel economy goal has been attained.

Step-by-step explanation:

The hypothesis :

H0 : μ < 30.2

H1 : μ ≥ 30.2

The test statistic :

(xbar - μ) ÷ (s/√(n))

xbar = 32.12 ; s = 4.83 ; n = 50

Test statistic :

(32.12 - 30.2) ÷ (4.83/√(50))

1.92 ÷ 0.6830651

T = 2.811

Using the Pvalue from test statistic calculator :

Since we used the sample standard deviation, we use the T distribution

df = n - 1 = 50 - 1 = 49

Pvalue(2.811, 49) ; one tailed = 0.00354

At α = 0.05

Pvalue < α ; then we reject the null and conclude that there is sufficient evidence that fuel economy goal has been attained

4 0
3 years ago
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