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KengaRu [80]
3 years ago
6

Find the value of this expression and show ur work

Mathematics
1 answer:
alexdok [17]3 years ago
4 0

Answer:

-30/49

Step-by-step explanation:

You multiply the numbers, then add the negative symbol, when you multiply the numbers, you get:

10/7*3/7 which equals 30/49, which means the answer is -30/49

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Given: Rectangle JKLM has an area of 36 square centimeters. Side is at least 4 centimeters long. Prove: KL 9 centimeters Assum
goldenfox [79]
The answer is shown below:

Rectangle JKLM has an area of 36 square centimeters. The side is at least 4 centimeters long. Prove: KL is 9 centimeters. Assume that a. "KL > 0". Then the area of rectangle JKLM is greater than b.) "40 centimeters² ", which contradicts the given information that c. the area is 40 centimeters². So the assumption must be false. Therefore, d.)  "KL <= 10". 
4 0
3 years ago
Help plz no links will mark best answer
Fantom [35]

Answer:

20

Step-by-step explanation:

you know the ratio is 4:3 so you do 4+3=7 then you do 140÷7=20 so I bar represents 20

4 0
2 years ago
You wish to take out a $375,000 mortgage. The yearly interest rate on the loan is 3% and the loan is for 25 years. How much will
Evgen [1.6K]

Answer:

$1,778.29

Step-by-step explanation:

4 0
3 years ago
Line m passes through the points (-2,7) and (4,-5), as shown below. Which of the following could be the equation of a line that
True [87]

Slope-intercept form:  y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

For lines to be parallel, they need to have the same slope.

To find the slope (m), use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}      And plug in the two points

(-2, 7) = (x₁, y₁)

(4, -5) = (x₂, y₂)

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{-5-7}{4-(-2)}   (two negative signs cancel each other out and become positive)

m=\frac{-5-7}{4+2}

m=\frac{-12}{6}     Simplify the fraction

m = -2        

The slope is -2, so the parallel line's slope is also -2.

Your answer is C

3 0
3 years ago
An element with mass 800 grams decays by 8.2% per day. How much of the element is remaining after 15 days,
Serjik [45]

Given:

The initial mass of an element is 800 grams.

Decay rate = 8.2% per day

Number of days = 15

To find:

The remaining element after 15 days.

Solution:

The exponential decay model is

y=a(1-r)^t

Where, a is the initial value r is the rate of interest and t is time period.

Putting a=800,r=0.082,t=15 in the above formula, we get

y=800(1-0.082)^{15}

y=800(0.918)^{15}

y=221.68188

y\approx 221.7

Therefore, the mass of the remaining element is 221.7 grams.

7 0
3 years ago
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