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AnnyKZ [126]
3 years ago
10

Isosceles and Equilateral triangles question! 60 POINTS!!

Mathematics
2 answers:
Kamila [148]3 years ago
5 0

Answer:

a = 43

Step-by-step explanation:

If PQ = PR, then P = R

The sum of the angles of a triangle is 180

P+Q+R = 180

47+2a + 47 = 180

Combine like terms

94 + 2a = 180

Subtract 94 from each side

2a = 180-94

2a = 86

Divide by 2

2a/2 = 86/2

a = 43

In-s [12.5K]3 years ago
5 0

Answer:

43

Step-by-step explanation:

PQ = PR, so P = R

P + Q + R = 180

47+2a + 47 = 180

2a = 180 - 47 - 47

2a = 86

= 43

Hope this helps!

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Choose the correct expression using the fewest number of bases possible that is equivalent to the current expression. Let x and
vredina [299]

Answer:

11^(x-y)

Step-by-step explanation:

If there is a same number which is divided by the same number, but with different powers, then we subtracted down value from the upper one.

Example: 17^7/ 17^5

=> 17^(7-5)

=> 17^2

So, the answer to this question is 11^(x-y).

3 0
3 years ago
Hi I need help with this question please thank you
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Answer:

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Step-by-step explanation:

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3 years ago
Kim drew a map of the Mississippi River. The scale was 5 centimeters represents 120 miles. The actual length of the Mississippi
Crank

Answer:

15 cm on the map

Step-by-step explanation:

360/120=3

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3 0
3 years ago
If a new phone screen is 19.68 cm2 larger than your current phone screen, with the dimensions 6.1 cm and 10.8 cm, then the new p
lutik1710 [3]

Answer:

(C)85.56 cm², 12.4 cm

Step-by-step explanation:

The Area of the screen of the new phone is :

19.68cm² + Area of the current phone screen size

The current phone screen size has dimensions: 6.1 cm and 10.8 cm,

Area of the current phone screen size = 6.1 cm × 10.8cm

Area of the current phone screen size = 65.88 cm²

Hence, The Area of the screen of the new phone is :

19.68cm² + Area of the current phone screen size

= 19.68cm² + 65.88cm²

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The is calculated as:

85.56cm²/6.9cm

= 12.4cm

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7 0
3 years ago
Amrita bought a new delivery van for $32,500. The value of this van depreciates at a rate of 12% each year. Write a function f(x
FrozenT [24]

Answer:

The function, f(x) to model the value of the van can be expressed as follows;

f(x) = 32,500 \times \left(0.88\right)^x

Step-by-step explanation:

From the question, we have;

The amount at which Amrita bought the new delivery van, PV = $32,500

The annual rate of depreciation of the van, r = -12% per year

The Future Value, f(x), of the van after x years of ownership can be given according to the following formula

f(x) = PV \cdot \left(1 + \dfrac{r}{100} \right)^x

Therefore, the function, f(x) to model the value of the van after 'x' years of ownership can be expressed as follows;

f(x) = 32,500 \cdot \left(1 - \dfrac{12}{100} \right)^x = 32,500 \cdot \left(0.88\right)^x

8 0
3 years ago
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