All categories

3 years ago

15.9 by 9.1 what is the area

Mathematics

1 answer:

Nataliya [291]3 years ago

6 0

Step-by-step explanation:

A = L x W

in multiplication I ignore the decimal points up until I get the answer then add the decimal digits in this case they are two then place the decimal after two digits from the right.

A = 159

x <u> </u><u>91</u>

14469 then place the decimal after two digits from right

= 144.69

You might be interested in

WILL MARK U BRAINLIEST

Lilit [14]

Answer:

Step-by-step explanation:

First, we should find the area of the trapezoid, and then subtract the area of the removed triangle in order to find the shaded area.

Area of the trapezoid

1) Area of the rectangle in the middle.

Base Length: 10

Height Length: 10

Area: 10 x 10 = 100

2. Area of the triangles on the side

Base Length: (14 - 10)/2 = 2

Height Length: 10

Area: 2 x 10 x 1/2 = 10

There are two triangles: 10 x 2 = 20

Area of the trapazoid: 100 + 20 = 120

Area of the triangle that's been removed

Base Length: 10

Height Length: 10 - 4 = 6

Area: 10 x 6 x 1/2 = 30

Shaded area

Area of the trapezoid - Area of the triangle

120 - 30 = 90

Area of the shaded region is 90.

4 0

2 years ago

It took Amir 2 hours to hike 5 miles. On the first part of the hike, Amir averaged 3 miles per hour. For the second part of the

rjkz [21]

<h2>Answer:</h2>

The equation that will be used to find t is:

$3(2-t)+1.5t=5$

<h2>Step-by-step explanation:</h2>

Total distance that is traveled by Amir is: 5 miles.

and the total time taken by him is: 2 hours.

On the first part of the hike, Amir averaged 3 miles per hour.

Let t denote the time he spent hiking during the second i.e. difficult part of the hike.

Hence, the time he spent in first part of hike is: 2-t

( Since, the total time was 2 hours)

Also, we know that:

$Distance=Speed\times Time$

Hence, distance traveled in first part of hike is:

$Distance=3\times (2-t)$

Now, the distance he will travel in second part of hike will be: 5-3(2-t)

Since the total distance traveled by him is 5 miles.

It is given that his speed decreased to 1.5 miles per hour.

Now, we know that:

$Time=\dfrac{Distance}{Speed}$

Hence, time spent by him in second part of hike is:

$t=\dfrac{5-3(2-t)}{1.5}\\\\i.e.\\\\1.5t=5-3(2-t)\\\\i.e.\\\\3(2-t)+1.5t=5$

8 0

3 years ago

Read 2 more answers

How many solutions does this system of two equations shown have ? y=3(x+4) y=3(x-4)

alisha [4.7K]

Answer:

One Soulution for both they are parallel and never meet

Step-by-step explanation:

7 0

3 years ago

What is the factored form of the expression?<br><br> d^2 = 36d + 324

Aleonysh [2.5K]

Answer:

(x-43.45)(x+7.45)=0.

Step-by-step explanation:

We have the quadratic equation $d^{2}=36d+324$ i.e. $d^{2}-36d-324=0$

Now, the roots of the quadratic equation $ax^{2}+bx+c=0$ are given by $x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$

So, from the given equation, we have,

a = 1, b =-36 , c = -324.

Substituting the values in $x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$ , we get,

$x=\frac{36\pm \sqrt{(-36)^{2}-4\times 1\times (-324)}}{2\times 1}$

i.e. $x=\frac{36\pm \sqrt{1296+1296}}{2}$

i.e. $x=\frac{36\pm \sqrt{2592}}{2}$

i.e. $x=\frac{36\pm 50.9}{2}$

i.e. $x=\frac{36+50.9}{2}$ and i.e. $x=\frac{36-50.9}{2}$

i.e. $x=\frac{86.9}{2}$ and i.e. $x=\frac{-14.9}{2}$

i.e. x = 43.45 and x = -7.45

Hence, the factored form of the given expression will be (x-43.45)(x+7.45)=0.

4 0

3 years ago

If I want to make some teddy bear slippers and I wear I size 8 in shoes what inch of bear should I get

weqwewe [10]

Answer:

96 inches

Step-by-step explanation:

4 0

3 years ago