MATHEMATICS HIGH SCHOOL

What is (9+9)+45?????????

Answers

Answer 1
Answer:

Answer:

60

Step-by-step explanation:
Answer 2
Answer:

Answer: 63

Step-by-step explanation:

PEMDAS, so parentheses come first,

9+9=18

And the next in your problem would be Addition.

So,

18+45=63

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billy and bob picked mangoes from a tree in the ratio 3:5 respectively. if they collected 16 mangoes altogether then how many did bob pick?

Answers

Answer:

10

Step-by-step explanation:

Billy Bob

3. 5

6. 10=16

Solve 5w-8 divide 3=4w+2

Answers

(5w-8)/(3)=4w+2\ \ \ \ \ |multiply\ both\ sides\ by\ 3\n\n5w-8=3(4w+2)\n\n5w-8=3(4w)+3(2)\n\n5w-8=12w+6\ \ \ \ \ |add\ 8\ to\ both\ sides\n\n5w=12w+14\ \ \ \ \ |subtract\ 12w\ from\ both\ sides\n\n-7w=14\ \ \ \ \ |divide\ both\ sides\ bhy\ (-7)\n\n\boxed{w=-2}

Please help me!!
3. Determine whether or not AB is tangent to circle O. Show your work.​

Answers

The line AB touching the circle at point B in the considered diagram is not tangent to the circle O.

What is Pythagoras Theorem?

If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:

|AC|^2 = |AB|^2 + |BC|^2

where |AB| = length of line segment AB. (AB and BC are rest of the two sides of that triangle ABC, AC being the hypotenuse).

How are radius and tangent to a circle related?

There is a theorem in mathematics that:

If there is a circle O with tangent line L intersecting the circle at point A, then the radius OA is perpendicular to the line L.

So, if AB is a tangent, then ∠ABO = 90° and therefore satisfies Pythagoras theorem.

Assuming AB is tangent, then ABO is right angled we should get:

H^2 = P^2 + B^2\n30^2 = 16^2 + 12^2\n900 = 256 + 144\n900= 500

This statement is false, and therefore, so as our assumption is false that ABis tangent to circle O. Thus, AB is not tangent to circle O.

(so it might be that even if AB looks like touching at one point the circle O, but AB might be intersecting the circle at two points, or not touching it at all)

Thus, the line AB touching the circle at point B in the considered diagram is not tangent to the circle O.

Learn more about tangent to a circle here:

brainly.com/question/7942024

Answer:

not tangent

Step-by-step explanation:

two reasons, first

Triangle AOB is not a right triangle

line AB intersects the circle O at two points.

Which point on the axis satisfies the inequality y < x? (1 point)
(0,1)
(-1,0)
(1,0)
(0,0)

Answers

y < x means the value of y is less than the value of x the values in your coordinates are (x,y) so plug them in option C is correct 0 < 1

-2(n+3)=13 solve for n

Answers

Answer:

1. Simplify:

-2(n + 3) = 13
-2n - 6 = 13

2. Change „-6” side to right (to get answer), without forgetting to change the sign:

-2n - 6 = 13
-2n = 13 + 6
-2n = 19

3. Simplify (The „|” means operation done at both sides of equation):

-2n = 19 |:(-2)
n = -9.5

Proof:
-2(-9.5 + 3) = -2 * (-6.5) = 13

Hope this helps!
N= -8
This is the work :

Mr Taylor brought back 180 Euros to the UK. The exchange rate was €1.2 to £1. How much did he get in £ sterling?

Answers

The answer is £150.

This could be calculated using proportion. If £1 is €1.2, how many £ is €180:
£1 : €1.2 = x : €180
x = £1 ÷ €1.2 × €180
x = £150
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