All categories

3 years ago

Shannon wants to buy 4 coffee mugs for the lowest amount.a set of 4 mugs costs £12

Mathematics

1 answer:

Lelu [443]3 years ago

7 0

i can help, but you need to write the whole question..

You might be interested in

two dice are rolled until a sum of either 5 or 7 occurs. estimate the probability that a 5 occurs first g

Ierofanga [76]

Answer:

The correct answer is " $\frac{2}{5}$ ". A further solution is provided below.

Step-by-step explanation:

According to the question,

The probability of getting a 5 will be:

= $\frac{4}{36}$

= $\frac{1}{9}$

The probability of getting a 7 will be:

= $\frac{6}{36}$

= $\frac{1}{6}$

The probability of not a 5 nor a 7 will be:

= $1-[\frac{4}{36} +\frac{4}{36} ]$

= $\frac{26}{36}$

= $\frac{13}{18}$

Now,

For roll of 2 dice,

⇒ $P=\frac{1}{9} +{\frac{1}{9}\times (\frac{13}{18} ) }+{(\frac{1}{9} )\times (\frac{13}{18} )^2}+{\frac{1}{9}\times (\frac{13}{18} )^3 }+...$

$=\frac{1}{9} [1+\frac{13}{18} +\frac{13^2}{18^2} +\frac{13^3}{18^3} +...]$

$=\frac{1}{9} [\frac{1}{1-\frac{13}{18} } ]$

$=\frac{1}{9} [{\frac{1}{\frac{5}{8} } ]$

$=\frac{2}{5}$

6 0

2 years ago

Find the measure of angles 1–12 in the complex figure. Explain how you found each angle measure.

soldier1979 [14.2K]

I'll start with the triangle figure.
Interior angles of a triangle is equal to 180°. The given triangle is an Isosceles triangle. It has 2 equal sides and 2 equal angles.

#7 is 69° because its vertical angle is 69°. Vertical angles are equal.
#8 is 111°. As I said, isosceles triangle has 2 equal angles. The angle that is beside #8 is 69°, equal to #7. So, 180° - 69° = 111°
Interior angles are already given except for #4. So, 180° - 69° - 69° = 42°
#3 is computed by 180° - 42° - 69° = 69°

#9 = 116° ; alternate interior angles are equal.
#10 = 180° - 116° = 64°

The last triangle looks like an equilateral triangle. It means that its sides and angles are equal.

360° / 6 = 60°
#1, #2, #5, and #6 = 60° each
#11 = 60° - equilateral triangle, all interior angles are equal.
#12 = 30°; 180° - 90° - 60° = 30°

8 0

3 years ago

Please help!! giving brainliest

sammy [17]

Answer:

They are congruent, this is because both shapes are the same size and have the same angles as show with the lines at the edges. I believe it's AAS

Step-by-step explanation:

Hoped this helped!

4 0

3 years ago

Read 2 more answers

Plz help no guessing