All categories

3 years ago

What is the area fore number 8

Mathematics

1 answer:

Karo-lina-s [1.5K]3 years ago

3 0

The formula for the area of a triangle is area= $\frac{1}{2} base*height$ . So when you plug in the given values: Area= $\frac{1}{2} *15 \frac{1}{4}*18$ . When you convert all the numbers to fractions: Area= $\frac{1}{2} * \frac{61}{4} * \frac{18}{1}$ . You multiply across the numerators and divide by the product of the denominators and get 137.25 $inches^{2}$ .

You might be interested in

PLEASE HELP ME ...........Julie was looking at the architect's blueprint of her house. The scale on blueprint was 1/4 inch = 1 f

MAVERICK [17]

Answer:

On the blueprint the dimensions are 48 inches by 64 inches.

Step-by-step explanation:

Given:

The scale on blueprint was 1/4 inch = 1 foot.

The actual dimensions of her bedroom are 12 feet by 16 feet.

Now, to find the dimensions on the blueprint.

Let the dimensions on the blueprint be $x$ by $y.$

As, given the scale on blueprint:

$\frac{1}{4}\ inch=1\ foot$

So, $\frac{1}{4}\ inch$ is equivalent to 1 foot.

Thus, $x$ is equivalent to 12 feet.

And, $y$ is equivalent to 16 feet.

Now, solving by cross multiplication method:

$\frac{\frac{1}{4}}{1} = \frac{x}{12}$

$\frac{4}{1} =\frac{x}{12}$

By cross multiplying we get:

$48=x$

$x=48\ inches.$

Now, again:

$\frac{\frac{1}{4}}{1} =\frac{y}{16}$

$\frac{4}{1} =\frac{y}{16}$

By cross multiplying we get:

$64=y$

$y=64\ inches.$

Therefore, on the blueprint the dimensions are 48 inches by 64 inches.

6 0

3 years ago

Find X and explain pls... got a test tomorrow and I’m lost in the sauce :(

tensa zangetsu [6.8K]

Hello from MrBillDoesMath!

Answer:

x = 11

Discussion:

Line KHF has 180 degrees so

(11x + 4) + angle GHF = 180 =>

angle GHF = 180 - (11x + 4) =>

angle GHF = 176 - 11x (*)

Triangle GHF has 180 degrees =>

60 + (6x-1) + angle GHF = 180

Substituting the value of angle GHF from (*) above gives

60 + (6x -1) + (176 -11x) = 180 =>

(60 + 176 -1) + (6x - 11x) = 180 =>

(235) + ( -5x ) = 180 => subtract 235 from both sides

-5x = 180 - 235 =>

-5x = -55 => divide both sides by 5

x = 55/5 = 11

Thank you,

MrB

5 0

4 years ago

Rewrite using associative property of addition: (x + 2) + y

creativ13 [48]

Answer:

the circle of life

Step-by-step explanation:

ik it fools us all

5 0

3 years ago

If sin θ = 1 over 3 and tan θ < 0, what is the value of cos θ?

alexira [117]

Answer:

2√2 / 3 (first answer choice)

Step-by-step explanation:

If tan Ф < 0, then Ф must be in either Quadrant II or Quadrant IV.

If sin Ф = +1/3, then Ф (for this problem) is in Quadrant II.

Remembering that sin Ф = opp / hyp = 1 / 3, we use the Pythagorean Theorem to find the adj side:

adj² + 1² = 3², or

adj² + 1 = 9, or adj² = 8. Since Ф is in Quadrant II, adj is negative.

The value of cos Ф = adj / hyp = √8 / 3 = 2√2 / 3

3 0

3 years ago

Harvey bought a. Frame in which he put his family picture in what is the area of the frame not covered by the picture

9966 [12]

Answer:

Area of the frame not covered with photo is equal to 129 square inches

Step-by-step explanation:

Given: Image of a frame

To find: Area of the frame not covered by the picture

Solution:

Area of rectangle = length of the rectangle × breadth of rectangle

Area of the frame = length of frame × breadth of frame = 23 × 15 = 345 square inches

Area of the frame covered with photo = 18 × 12 = 216 square inches

Area of the frame not covered with photo = Area of the frame - Area of the frame covered with photo = 345 - 216 = 129 square inches

8 0

3 years ago