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3 years ago

8. What is the volume of the figure below ifa=3.5 units b = 5.4 units, and c=3

Mathematics

1 answer:

solmaris [256]3 years ago

7 0

Answer:

110.2

Step-by-step explanation:

We can break the image into two by taking the cuboid and the triangular prism separately.

Volume of the cuboid= 3.5x7x3 = 73.5

Volume of prism= Area of triangle x3

i.e. 2(1/2 x 3.5x3.5) x3= 36.7

Add both the volumes = 73.5+36.7= 110.2

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Your friend has $90 when he goes to the fair. He spends $5 to enter the fair and $15 on food. Rides at the fair cost $1.50 per r

Maksim231197 [3]

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that ,

Total money he takes while going to the fair = $90

Money he spends to enter the fair = $5

Money he spends on food =$15

Total he spent now is given by

$\$5+\$15=\$20$

Now, he spend on rides at the fair i.e. 1.50 per ride .

Let the number of rides be x

So, cost incurred on rides = 1.5x

So, the spending money can be expressed as

$20+1.50x$

Now, remaining money left to him after spending on x rides too is

$90-(1.50x+20)\\\\=90-1.50x-20\\\\=70-1.5x$

Let f(x) denotes the function used to determine the money he has left over after rides .

So it becomes

$f(x)=70-1.50x\\\\f(x)=-1.50x+70$

3 0

3 years ago

Read 2 more answers

Robert says his better long jump was about 1 foot farther than May's better long up. Is he correct? Explain.

Alborosie

We need mor information to tell what there best long jumps are

3 0

3 years ago

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If f(x)= 6x+7, determine the value of f(r-2)

Tanzania [10]

The value of f(r - 2) is 6r - 5

<h3>What is a function?</h3>

Function can be defined as an expression, rule, or law that defines a relationship between one variable known as the independent variable and another called the dependent variable.

From the information given ,we have;

f(x)= 6x+7, with f ( r - 2)

From here, we have that x = r -2

Now, let's substitute x as r - 2 in the function given;

f(x) = 6x + 7

f(r - 2) = 6 ( r - 2) + 7

Expand the bracket

f(r - 2) = 6r - 12 + 7

collect like terms

f(r - 2) = 6r - 5

Thus, the value of f(r - 2) is 6r - 5

Learn more about functions here:

brainly.com/question/6561461

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5 0

2 years ago

If cos45⁰=0.707 find cos(-45⁰)

maksim [4K]

Answer:

0.707

Step-by-step explanation:

cos in the 4th quadrant is positive as well as in 1st quadrant.

cos(-45°) is in the 4th quadrant.

So cos40° must equal cos(-45°) which is 0.707.

6 0

3 years ago

I know the answer just double checking <br>Expand<br>5(y+7)

vekshin1

X=5(y+7) or x=5y+35
sorry if I’m wrong

8 0

3 years ago

8. What is the volume of the figure below ifa=3.5 units b = 5.4 units, and c=3​

8. What is the volume of the figure below ifa=3.5 units b = 5.4 units, and c=3