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Kaylis [27]
2 years ago
14

Help plsssssssssssssss​

Mathematics
1 answer:
shepuryov [24]2 years ago
7 0

Answer:

38

Step-by-step explanation:

The sum of the measures of the 4 angles is 180°.

m<A + m<B + m<C + m<D = 180

60 + 2x + 3x + 25 = 180

5x + 85 = 180

5x = 95

x = 19

m<B = 2x = 2(19) = 38

Answer: 38

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Find the radius of a circle whose circumference is 56.52 cm. Round your answer to the nearest whole number
LekaFEV [45]

Answer:

9 cm

Step-by-step explanation:

hope it helps<3

8 0
3 years ago
Find the angle between the given vectors to the nearest tenth of a degree. u = (8, 4), v = (9, -9)
Usimov [2.4K]

Answer:

<em>71.6 degrees </em>

Step-by-step explanation:

The formula for calculating the angle between two vectors is expressed as;

u.v = |u||v|cos theta

u.v = (8, 4).(9, -9)

u.v = 8(9)+4(-9)

u.v = 72-36

u.v = 36

|u| = √8²+4²

|u| = √64+16

|u| = √80

|v| = √9²+(-9)²

|v| = √81+81

|v| = √162

36 = √80*√162 cos theta

36 = √12960 cos theta

36 = 113.84 cos theta

cos theta = 36/113.84

cos theta = 36/113.84

cos theta = 0.3162

theta = arccos (0.3162)

<em>theta = 71.6 degrees </em>

<em>Hence the angle between the given vectors is 71.6 degrees </em>

7 0
3 years ago
Read 2 more answers
X+y+z=2<br> 5x+5y+5z=3<br> 4x+y-3z=-6
aniked [119]

Answer:

:)

Step-by-step explanation:

Examples: 1+2, 1/3+1/4, 2^3 * 2^2

(x+1)(x+2) (Simplify Example), 2x^2+2y a x=5, y=3 (Evaluate Example)

y=x^2+1 (Graph Example), 4x+2=2(x+6) (Solve Example)

5 0
3 years ago
How would the solution of the inequality 3/7 (35x - 14) ≤ 21x/2 + 3 be graphed on a number line?
Mashcka [7]

Answer  it's a closed dot on positive 2 going to the left

Step-by-step explanation:

4 0
2 years ago
A broker charges customers a fixed fee of £150 plus 5.50% of the amount of all investments made. If a customer invests £40 000 t
Romashka [77]

Answer:

Total payable brokerage = £2350

Step-by-step explanation:

Given that:

Fixed fee charged by broker = £150

Percent of fee charged = 5.50%

Amount invested by customer = £40,000

Fee charged = \frac{5.50}{100}*40000

Fee charged = 5.50 * 400 = £2200

Total brokerage payable = £150 + £2200 = £2350

Hence,

Total payable brokerage = £2350

8 0
2 years ago
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