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4 years ago

Please help!! Explain!!

Mathematics

1 answer:

MrMuchimi4 years ago

5 0

Answer:

The answer is C

Step-by-step explanation:

20 subtracted by 25 is negative 5 then it rose up to 5 more farenheight and got up to 0

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Kyle asks his friend Jane to guess his age and his grandmother’s age. Kyle says his grandmother is not more than 80 years old. H

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3 years ago

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What is the intersection of plane TUYX and plane VUYZ? (Image below. Multiple Choice)

Marianna [84]

Answer:

B) UY

Step-by-step explanation:

From the given figure, TUYX is one of the side of the rectangular prism and UVYZ is another side of the rectangular prism.

The both sides are intersecting perpendicular in one edge, that is the line segment UY.

You can see it on the figure.

Therefore, the intersecting line is UY.

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4 years ago

Is it possible to draw a triangle whose sides are as follows? 6 cm, 7 cm, 17 cm. Give reasons to support your answer.

RUDIKE [14]

Answer:

Step-by-step explanation:

The sum of two random sides of a triangle must be bigger than the third side and their differences must be smaller than the third side

For example

3 - 4 - 5 can be made into a triangle because 3 + 4 > 5 and 4 - 3 < 5

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4 years ago

Sam wants to fence his rectangular garden plot along its length on the front side. The perimeter of the plot is 24 meters, and i

Black_prince [1.1K]

Question is Incomplete;Complete question is given below;

Sam wants to fence his rectangular garden plot along its length on the front side. The perimeter of the plot is 24 meters, and its length is 3 times its width. If x is the length and y is the width of the plot, set the equations of the system. Solve and determine the values of x and y. If the cost of fencing is $25 per meter, how much does Sam need to spend on fencing?

Answer:

Length of the plot $(x)$ is 9 meter and width of the plot $(y)$ is 3 meter.

Sam need to spend $225 on fencing.

Step-by-step explanation:

Given;

Perimeter of the plot =24 m

Length of the plot is denoted ' $x$ '

Width of the plot is denoted by $'y'$

Cost of Fencing = $25 per meter.

We need to find the the values of x and y.

Also we need to find how much does Sam need to spend on fencing.

Solution:

Now given that;

length is 3 times its width.

so we get;

$x=3y$

Now we know that;

Perimeter of the rectangle is equal to 2 times sum of its length and width.

framing in equation form we get;

$24=2(x+y)$

But $x=3y$

so we get;

$24 =2(3y+y)\\\\24=2(4y)\\\\24=8y$

Dividing both side by 8 we get;

$\frac{24}{8}=\frac{8y}{8}\\\\y =3\ m$

Now width of the plot = 3 meter

Length of the plot $x=3y=3\times3= 9\ m$

Hence Length of the plot $(x)$ is 9 meter and width of the plot $(y)$ is 3 meter.

Now given that;

Sam wants to fence his rectangular garden plot along its length on the front side.

So we can say that;

Length to be fenced = 9 m

Cost of fencing = $25/meter

Cost of fencing the garden = $9\times 25= \$225$

Hence Sam need to spend $225 on fencing.

3 0

4 years ago

Directions-Write an exponential function to model each situation. Then find the value of the function after the given amount of

nignag [31]

Answer:

We can now write this is a function of time in years leading to

(

)

200

(

.94

)

(

)

≈

147

Explanation:

Firs you should consider that if its exponential then it has some form similar to

. Where we have some known part (3) and the unknown part (

) that we are trying to find out. Mathematically we can say it has the form

. In this case we know what the

is and that is the entire population that was given to us. We know over time it will change but why are we even using the exponential model.

Well it turns out that if you multiply some value over and over again it has this form. Example we multiply

⋅

. So if something doubled over time then this is what would happen.

Now the problem is that it will continue to decrease at the same rate leading to

⋅

(

.94

)

because only

of the population remains each year. After two years

⋅

(

.94

)

⋅

(

.94

)

. We can now write this is a function of time in years leading to

(

)

200

⋅

(

.94

)

(

)

≈

147

Step-by-step explanation:

8 0

2 years ago