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Brrunno [24]
3 years ago
14

Please help with this geometry question!

Mathematics
1 answer:
faltersainse [42]3 years ago
6 0
Since the properties of a rhombus tells us that both pairs of opposite sides are congruent we can therefore conclude that DB will be 12
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Find the midpoint of the segment with the given endpoints. ​(9​,9​) and ​(-1​,- 3​)
GenaCL600 [577]

Answer: (4, 3)

Step-by-step explanation:

The formula for coordinate of the mid point is given as :

Mid point = (\frac{x_{2}+x_{1}}{2} , \frac{y_{2}+y_{1}}{2} )

x_{1} = 9

x_{2} = -1

y_{1} = 9

y_{2} = -3

Substituting the values into the formula , we have :

Mid-point = (\frac{-1+9}{2} , \frac{-3+9}{2} )

Mid-point = ( \frac{8}{2} , \frac{6}{2} )

Mid - point = ( 4 , 3)

8 0
3 years ago
A discount voucher offering 15% off is used to pay a bill.After using the voucher, the bill is reduced to ?36.72.How much was th
Aleonysh [2.5K]

Answer:

$43.20

Step-by-step explanation:

To find the original purchase price, write a proportion and solve. A proportion is an equation where two ratios are set equal.

If the discount if 15% then you pay 85%.

\frac{36.72}{y}= \frac{85}{100}

To solve for y, cross multiply the numerator and denominator of each fraction.

36.72(100) = 85y

3672= 85y

43.2 = y

5 0
4 years ago
27 131 Marks
nadya68 [22]

Answer:

The number of sweets in the 10th bag is 53

Step-by-step explanation:

Given

Let the Number of sweets in a bag  be represented by x and frequency be represented by f

The table is as follows

x   F

39 1

40 2

41 5

42 0

43 1

Mean = 42

Required

How many sweets are in the 10th bag?​

Represent the number of sweets in the 10th bag by y;

The table becomes

x   F

39 1

40 2

41 5

42 0

43 1

y   1

The mean of observation is calculated using the following formula;

Mean = ∑fx/∑f

Where ∑ means summation

fx means f * x; i.e. product of frequency and number of sweets

f represents frequency;

Calculating ∑fx

∑fx = 39 * 1 + 40 * 2 + 41 * 5 + 42 * 0 + 43 * 1 + y * 1

∑fx = 39 + 80+ 205 + 0 + 43 + y

∑fx = 367 + y

Calcuating ∑f

∑f = 1 + 2 + 5 + 0 + 1 + 1

∑f =  10

Recall that

Mean = ∑fx/∑f and Mean = 42;

So, Mean = ∑fx/∑f becomes

42 = \frac{367 + y}{10}

Multiply both sides by 10

42 * 10 = \frac{367 + y}{10} * 10

420 = 367 + y

Subtract 367 from both sides

420 - 367= 367 -367 + y

53 = y

y = 53

Hence, the number of sweets in the 10th bag is 53

6 0
3 years ago
The wild cats basketball team made 80% of the 95 shots taken. How many shots did they make?
Brilliant_brown [7]
To answer this question what you should do is to take 80% out of 95. To do this, you must make a simple rule of three which you can do as follows.
 95 ---> 100
 x ----> 80
 Clearing x we have
 x = ((80) / (100)) * (95) = 76
 answer
 they did make 76 shots of 95
5 0
3 years ago
Read 2 more answers
What is 1/10 divided by 5
mafiozo [28]

Answer:

0.02

Step-by-step explanation:

4 0
3 years ago
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