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Diano4ka-milaya [45]
3 years ago
9

Help plzzzzzz plzzzzzzzzzzzz

Mathematics
1 answer:
UkoKoshka [18]3 years ago
5 0

Answer:

x = 20°

y = 70°

Step-by-step explanation:

the angle adjacent to the 40° angle must be 140° because the two angles form a straight line (which contains 180°)

in the isosceles triangle with the 'x', that means the other two angles must be equal and are (180-140) ÷ 2, which equals 20°

to find 'y', consider the larger right triangle with angles of 90° and 20°; angle y must equal 180 - (90 + 20) = 70°

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Which pair of fractions and mixed numbers have a common denominator of 20?
mariarad [96]

Answer: The answer is the 4th option

Step-by-step explanation: Hope this helps!

6 0
3 years ago
A giant tortoise can travel 0.11 miles in 1 hour. At this rate, how long would it take the tortoise to travel 3 miles?
lakkis [162]

Answer:

about 27.27 hours.

Step-by-step explanation:

If it can travel 0.11 miles in 1 hour, we need to divide 3 miles by 0.11 miles to get the number of hours it would take to travel 3 miles. 3/0.11 is 27.27 repeating.

Hope this helps!

4 0
2 years ago
Read 2 more answers
What are the a b and c values of 3x^2-4x=20
joja [24]

Answer:

a = 3, b = -4, c = -20

Step-by-step explanation:

<u>Step 1:  Find the a, b, and c values</u>

ax^2 + bx +  c = 0

3x^2 - 4x - 20 = 0

The a value is:  3

The b value is:  -4

The c value is:  -20

Answer:  a = 3, b = -4, c = -20

8 0
3 years ago
Arlene buys a phone case and charging cord for 15% off. The original cost of the phone case is $18. Her total discount is $4.20.
mel-nik [20]

Answer: $10

Step-by-step explanation:

Assume the price of the phone case is x.

Assume the price of the charging cord is y.

Discounted price for phone case :  15% * x

= 0.15x

Discounted price for charging cord = 0.15y

Expression is therefore:

0.15x + 0.15y = 4.20

0.15 * 18 + 0.15y = 4.20

2.7 + 0.15y = 4.20

0.15y = 4.2 - 2.7

y = 1.5/0.15

y = $10

5 0
3 years ago
Read 2 more answers
Use the Remainder Theorem to determine which binomial is a factor of the function f(x) = x3 − 2x2 − 19x + 20.
dybincka [34]

Answer:

(x - 1)

Step-by-step explanation:

Given

f(x) = x³ - 2x² - 19x + 20

The sum of the coefficients is 1 - 2 - 19 + 20 = 0

This means that x = 1 is a root and (x - 1) is a factor of f(x)

3 0
3 years ago
Read 2 more answers
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