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Leni [432]
3 years ago
7

Simplify: 36÷{12-(3+6)*5}​

Mathematics
2 answers:
NeTakaya3 years ago
7 0
Answer - 3

B = 36/ (12-9*5)
B = 36/ (12- 45)
B = 36/ (-33)
E = N/A
D = 3
M = N/A
A = N/A
S = N/A
AnnyKZ [126]3 years ago
7 0

Answer:

12/11

Step-by-step explanation:

Any work inside parentheses must be done first.  

Thus, start with (3 + 6); this equals 9.  Then the original expression becomes

36÷{12-(9)*5}

Multiplication and division are done before addition and subtraction.  Thus, the next stp is to multiply 9 and 5, obtaining 45, inside the parentheses.  This results in

36÷{12-45}, or 36÷{33}, which leads to the answer 36/33, or 12/11.

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Who can help me to solve these questions please?
ankoles [38]

Using the given information, length of QR = 16.6 cm

The area of the trapezium is 304.5 cm²

<h3>Calculating area of a trapezium</h3>

From the question we are to calculate the length of QR and the area of trapezium PQRS

In the given diagram,

Let the midpoint of PS be T

Then, we can write that

|OP|² = |OT|² + |PT|²  (<em>Pythagorean theorem</em>)

|OP| = radius = 13 cm

|PT| = 1/2 × PS = 1/2 × 24 cm = 12 cm

∴ 13² = |OT|² + 12²

169 = |OT|² + 144

|OT|² = 169 -144

|OT|² = 25

|OT| = √25

|OT| = 5 cm

Also, let the midpoint of QR be U

Then, we can write that

|OQ|² = |OU|² + |QU|² (<em>Pythagorean theorem</em>)

|OQ| = radius = 13 cm

From the given information,

The distance of QR from O is twice the distance of PS from O

∴ |OU| = 2 × |OT|= 2 × 5 cm = 10cm

Thus,

13² = ||² + 12²

169 = 10² + |QU|²

|QU|² = 169 -100

|QU|² = 69

|QU| = √69

|QU| = 8.3 cm

Now,

Length of QR = 2 × |QU| = 2 × 8.3 cm

Length of QR = 16.6 cm

b)

Area of the trapezium = 1/2(|QR| + |PS|) × |TU|

Area of the trapezium = 1/2(16.6 + 24) × 15

NOTE: |TU| = |OT| + |OU|

Area of the trapezium = 1/2(40.6) × 15

Area of the trapezium = 20.3 × 15

Area of the trapezium = 304.5 cm²

Hence, the area of the trapezium is 304.5 cm²

Learn more on Calculating area of trapezium here: brainly.com/question/3435635

#SPJ1

7 0
2 years ago
-10+|6+-17| - - 14 show how you got the answer
mel-nik [20]

Answer:

15

Step-by-step explanation:

-10+\left|6+\left(-17\right)\right|-\left(-14\right)
=-10+\left|6-17\right|+14
Subtract.
=-10+\left|-11\right|+14
Now, add.
=4+\left|-11\right|
Apply absolute rule.
=4+11
= 15

8 0
1 year ago
Complete the table<br> Due in 12 minutes
Mekhanik [1.2K]

Answer:

4th one

when x goes up y=+4

so if x is 5 y is 20

but if y is 28 x is 7

5 0
3 years ago
Read 2 more answers
H(x)=2x^2+3x-7 <br> find h(-1)
nata0808 [166]

Answer:

que

Step-by-step explanation:

4 0
2 years ago
Im absolutely clueless with part b and c
Elden [556K]

Answer:

19.8 and 8/(sin(theta))+ 6/(cos(theta))

Step-by-step explanation:

If you make a table you can see that L_1 + L_2 gets larger as you increase theta prom pi/2 and decrease theta from pi/2. This means that pi/2 is the theta that will yield the smallest length for the ladder. Plugging this into L_1 + L_2 you get 19.8 (rounded to the nearest hundred)

C = 8/(sin(theta))+ 6/(cos(theta))

7 0
3 years ago
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