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Sophie [7]
3 years ago
6

In order for the parallelogram to be a rectangle x=

Mathematics
2 answers:
klemol [59]3 years ago
8 0

Answer:

<em>X </em>is equal to 2

Step-by-step explanation:

90 = 13x + 34 + 10x + 10

Combine Like Terms:

90 = 23x + 44

Subtraction Property of Equality:

90 - 44 = 23x + 44 - 44 ---> 46 = 23x

Division Property of Equality:

46 ÷ 23 = 23x ÷ 23 ---> 2 = x

<h3>Check Your Work:</h3>

90 = 13x + 34 + 10x + 10

Fill In Variables:

90 = 13(2) + 34 + 10(2) + 10

90= 26 + 34 + 20 + 10

90 = 60 + 30

90 = 90

koban [17]3 years ago
7 0

Answer:

x = 2

Step-by-step explanation:

Set the two equations 13x+34 and 10x+10 together to add up to 90 on the right which should look like this 13x + 34 + 10x + 10 = 90.  Combine the two x-values to get 23x and the two other numbers to get 44.  Your equation should now be 23x + 44 = 90.  Subtract 44 on both sides to get this equation 23x = 46.  Divide 23 on both sides to get your x value which is 2.

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A computer store decides to increase the prices of all the items it sells by 15%. the store manager uses matrices to prepare the
Andrews [41]

The matrix exists as a set of numbers placed in rows and columns to create a rectangular array. The manager could achieve scalar multiplication on Matrix A, utilizing the scalar 1.15.

<h3>What is the matrix?</h3>

The matrix exists as a set of numbers placed in rows and columns to create a rectangular array. The numbers exist named the elements, or entries, of the matrix. Matrices contain wide applications in engineering, physics, economics, and statistics as well as in different branches of mathematics.

Increasing the price by 15% would mean we exist taking 100% of the value + another 15%

100 + 15 = 115%

115% = 115/100 = 1.15.

Multiplying every value in Matrix A by 1.15 will give the price raised by 15%.

Therefore, the correct answer is option c. by multiplying each entry of matrix a by 1.15.

To learn more about matrix refer to:

brainly.com/question/12567347

#SPJ4

7 0
2 years ago
The square of a number is always larger than the number. it's a true or false question
enot [183]

Answer:

True except when its 0 or 1 squared in which case would be false

Step-by-step explanation:

0^2=0

1^2=1

4 0
4 years ago
Permutations vs combinations(one step):
Bogdan [553]

Answer:

the expression is: ^{15}P_3=\frac{15!}{(15-3)!}

and 2730 different ways are possible.

Step-by-step explanation:

In the given question we have to choose a president, vice

president, and secretary.

Permutations are used when order is important so, as in the given question order is required. We would use permutations

The formula used is: ^nP_r=\frac{n!}{(n-r)!} where:

n=total number of objects

r=number of objects selected

In our case: n=15, r=3

Putting values and finding the answer:

^nP_r\\^{15}P_3=\frac{15!}{(15-3)!} =2730 \ ways

So, the expression is: ^{15}P_3=\frac{15!}{(15-3)!}

and 2730 different ways are possible.

7 0
3 years ago
State the slope and the y-intercept for the graph of each equation.
alekssr [168]
1. The slope is 12 and the y-int. Is -4 2. The slope is 1 and the y int. Is 3 3. The slope is 3 and the y-int. Is -6
4 0
4 years ago
Can someone help me find the median of this question please.
vodomira [7]

Answer:

median = 2.8 m

Step-by-step explanation:

the median is the middle value of the data set in ascending order.

If there is no exact middle value then it is the average of the values either side of the middle.

the stem- leaf diagram shows the data in ascending order from 1.6 to 4.5

there are 10 data values so no exact middle value.

the median lies between 2.7 and 2.9

median = (2.7 + 2.9) ÷ 2 = 5.6 ÷ 2 = 2.8 m

3 0
2 years ago
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