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kenny6666 [7]
3 years ago
14

Item 1 Evaluate 2xy when x=−14 and y=3 . explain your answer

Mathematics
2 answers:
meriva3 years ago
8 0

2xy

2(-14)(3)

-28*3

-84

juin [17]3 years ago
6 0

Answer:

-84

Step-by-step explanation:

We have been given an expression 2xy. We are asked to evaluate our given expression, when x=-14 and y=3.

Upon substituting x=-14 and y=3 in our given expression, we will get:

2(-14)(3)

6(-14)

-84

Therefore, the value of our expression at given values is -84.

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What is the volume of the regular pyramid below?
erastovalidia [21]
Answer:
volume of regular pyramid = 3388 units³

Explanation:
Volume of regular pyramid can be calculated using the following rule:
volume of regular pyramid = \frac{1}{3} * area of base * height
volume of regular pyramid = \frac{1}{3} * length * width * height

Based on the comment you added above, we have:
length = 11 units
width = 11 units
height = 84 units

Substitute with the givens in the above equation to get the volume as follows:
volume = \frac{1}{3} * 11 * 11 * 84
volume = 3388 units³

Hope this helps :)
6 0
3 years ago
You are planning to buy a house for $800,000. City bank offers a 30 year loan at 4.9 % apr ( Annual percentage interest rate) if
masya89 [10]

Answer:

3396.65

Step-by-step explanation:

Let's start by cacluating the amount the bank is loaning us

800000*.8=640000

Let's now calculate the effective rate: .049/12= .004083333333

let x= payment

640000=x\frac{1-(1+.004083333333)^{-30*12}}{.004083333333}\\x=3396.651012

4 0
3 years ago
Solve the unknown variable
dsp73
Set measurements equal to each other.
7X + 20 = 8X + 8
-7X           -7X

20 = X + 8
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ANSWER: X=12
5 0
3 years ago
The volume is 120.9 in. What is the missing dimension (X)
Elina [12.6K]

Answer:

X = 2.5 in

Step-by-step explanation:

volume = L x W x H

120.9 = 9.3 x 5.2 x X

X = 2.5 in

5 0
3 years ago
Read 2 more answers
Determine if the statement is true or false<br> The figures below are similar
artcher [175]

Answer:

True

Step-by-step explanation:

The polygons given have 5 sides, so the sum of their interior angles is (5-2) * 180 = 540. Next, there are 4 pairs of corresponding sides. Writing those sides as a, b, c, and d, for each pentagon, we can write

540 = a + b + c + d + missing angle

540 = a + b + c + d + missing angle

As is shown here, if a, b, c, and d are the same, 540 - (a+b+c+d) = missing angle is the same as well. Therefore, there are 5 corresponding angle pairs for the two polygons. Furthermore, because there are only 5 angles for each polygon, and because having all corresponding angles be equal makes polygons similar to each other, the polygons given are similar

7 0
3 years ago
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