What is the value of (–4)–3?

Answer: The height of the building is 41.2 ft

Step-by-step explanation:

Here we want to find the height of the building.

To do so, the first step is to find the horizontal distance between the student and the car/bird (which represents the common cathetus between the two triangle rectangles).

For the top triangle rectangle, we know one cathetus and the hypotenuse, and we can use the Pythagorean's theorem to find the other cathetus.

A^2 + B^2 = H^2

Where A and B are the cathetus, and H is the hypotenuse.

Then we have:

20^2 + B^2 = 25^2

B^2 = 25^2 - 20^2

B = √( 25^2 - 20^2) = 15

Then the horizontal distance between the student and the car is 15ft, and we also know the angle at which this cathetus is adjacent, the angle is 70°.

Then we can use the relationship:

Tan(A) = (opposite cathetus)/(adjacent cathetus)

Where the opposite cathetus woud be the height of the building, then:

Tan(70°) = H/15ft

Tan(70°)*15ft = H = 41.2 ft

Answer:

530.66 square cm

Step-by-step explanation:

Area of the circle

[tex] = \pi {r}^{2} \\ = 3.14 \times {13}^{2} \\ = 3.14 \times 169 \\ = 530.66 \: {cm}^{2} \\ [/tex]

Answer:

5/52 for getting a 5

7/52 for getting a 7

Answer:

Step-by-step explanation:

52 cards in a standard deck. Four 5's and four 7's.

4/52 = 5

4/52 = 7

4/52+4/52= 2/13

2/13 as a percent is 15.384615384615%

that simplified is 15.4%

or just 15%

:) Hope that helped.

Answer:

the x entecepts of a graph are the solutions of the equation,

a quadratic equation can have one of three types of solutions

Answer:

[tex]f(a)+g(a)=6a-2[/tex]

Step-by-step explanation:

So we have the two functions:

[tex]f(a)=2a-1\text{ and } g(a)=4a-1[/tex]

And we want to find f(a) + g(a).

So, substitute:

[tex]f(a)+g(a)[/tex]

This is the same as:

[tex]=(2a-1)+(4a-1)[/tex]

Combine like terms:

[tex]=(2a+4a)+(-1-1)[/tex]

Add or subtract:

[tex]=6a-2[/tex]

And we're done!

Answer:

y = -2x + 9

Step-by-step explanation:

Let's start from the -2x, the slope is -2. The x is basically what says, this is the slope. The plus nine is the y-intercept. If you think in graph terms (which is how you solve this problem) you will see that on the y-axis the line will intercept at the 9. The every x integer it goes down it goes that times two. For example, if you go sideways 1 spot, the line will be at y=11.

Answer:

6 will the number......

Answer: 200

Step-by-step explanation:

anything times 2 is just doubled

Answer:

60

Step-by-step explanation:

Since Jim sold 1/3 of his stamps on Monday, the remainder would be 2/3 of his total stamps.

Divide 360 stamps by 3. Minus the stamps sold on Monday from 360 to get the remainder.

stamps sold on Monday = 360 ÷ 3 = 120

remainder = 360 - 120 = 240

He sold 1/4 of the remainder on Tuesday.

Divide the remainder by 4.

stamps sold on Tuesday = 240 ÷ 4 = 60

He sold 60 stamps on Tuesday.

Answer:

-18  bvhbdhbgdjd

Step-by-step explanation:

fgjfgfkgkdfhgkjdvn cjkvb

makes sense mostly if you know this algorithm

Answer:

The missing side length is 5 cm

Step-by-step explanation:

We see that 4cm is on the top and 9 cm is on the bottom.

All we need to do is subtract 4 from 9

9-4=5

The missing side length is 5 cm

Hope this helps! Plz award Brainliest : )

Answer:

[tex]D = 72.2\ yd[/tex]

Step-by-step explanation:

Given

[tex]Length\ (L)= 58\ yd[/tex]

[tex]Width \ (W)= 43\ yd[/tex]

Required

Determine the diagonal (D)

The relationship between D, L and W can be gotten using Pythagoras Theorem:

[tex]D^2 = L^2 + W^2[/tex]

Substitute values for L and W

[tex]D^2 = 58^2 + 43^2[/tex]

[tex]D^2 = 3364 + 1849[/tex]

[tex]D^2 = 5213[/tex]

Take Square root of both sides

[tex]D = \sqrt{5213}[/tex]

[tex]D = 72.2011080247[/tex]

[tex]D = 72.2\ yd[/tex] (Approximated)

Answer:

For the parallel line it will still have a slpoe of 2/3

Step-by-step explanation:

as for the perpendicular line it will be double like 4/6 so it can meet it at a 90° angle.

Answer:

36.67 %

Step-by-step explanation:

Pass mark = 110 marks

Total mark = 300 marks

Pass percentage=

[tex] \frac{pass \: mark}{pass \: percentage} \times 100[/tex]

Substitute values into the equation

[tex] \frac{110}{300} \times 100[/tex]

Cross cancel common factor: 100

[tex] \frac{110}{3} = 36 \frac{2}{3} \% \: or \: 36.67 \%[/tex]

Answer:

These equations cannot be simplified anymore than what they are. Unless there is a certain way the teacher want it.

Step-by-step explanation:

Answer:

Write an equation to model the given context. Give your answer in simplest form.

The total for a pair of socks with a 15% sales tax.

The original price of an item less a discount of 5%.

Step-by-step explanation:

hhh cc to me the answer to this

y = total cost

x = # of hours

$12 + $8x = y

Answer:

the answer is y=8x=12

Step-by-step explanation:

Answer:

x

=

−

v

3

24

−

17

24

Step-by-step explanation:

Answer:

m∠PTQ = 40°

Step-by-step explanation:

From the picture attached,

Two lines PS and RQ are intersecting each other at a point T.

Vertical angles formed at the point of intersection T will be equal in measure.

m∠PTQ = m∠STR and m∠PTR = m∠QTS

Therefore, (x + 28)° = (2x + 16)°

28 - 16 = 2x - x

12 = x

m∠PTQ = (x + 28)°                            

             = 12 + 28

             = 40°

Therefore, measure of angle PTQ is 40°.

Answer:

-18

Use a number line.

Since -18 is the farthest from 0, it is the answer. Hope it helps!

Answer:

10.5 wait can it be a decimal

Step-by-step explanation:

Answer:

44

Step-by-step explanation:

use the order of operations

5 (3) 2 + 3 + 11. solve within parenthesis

15 × 2 + 3 + 11. multiply left to right

30 + 3 + 11. multiply left to right

33 + 11. add left to right

44. add

the order of operations is more commonly known as PEMDAS.

(parenthesis, exponents, multiply and divide, add and subtract)

If you are still confused there is a Brain Pop about PEMDAS. just search "order of operations" on the brain pop website

Answer:

[tex]3.6 * 10^8 = 360000000[/tex]

[tex]1.2 * 10^4 = 12000[/tex]

Step-by-step explanation:

Given

[tex]3.6 * 10^8[/tex]

[tex]1.2 * 10^4[/tex]

Required

Solve

[tex]3.6 * 10^8[/tex]

Express [tex]10^8[/tex] as 100000000

[tex]3.6 * 10^8 = 3.6 * 100000000[/tex]

[tex]3.6 * 10^8 = 360000000[/tex]

[tex]1.2 * 10^4[/tex]

Express [tex]10^4[/tex] as 10000

[tex]1.2 * 10^4 = 1.2 * 10000[/tex]

[tex]1.2 * 10^4 = 12000[/tex]

Answer:

False

Step-by-step explanation:

PEMDAS is your order of operations, so you would do the multiplication in the parenthesis first.

[tex](16-4*2) = (16-8) = 8[/tex]

16 isn't equal to 8 so the answer would be false.

Answer:8

Step-by-step explanation:4 times 2=8 so 16-8=8

Answer:

120 bars

Step-by-step explanation:

If Bill packs 10 candy bars in every box and there are 12 boxes in every shipping carton, then that would mean there are 12 sets of 10 candy bars. Meaning that you would multiply 10 by 12 since there are 12 boxes and 10 candy bars in each box (which would give you 120).

Answer: x = 7

Step-by-step explanation:

Corresponding angles have congruent measures. Thus, 11x - 2 = 75

11x - 2 = 75

11x = 77

x = 7

Answer:

John's steps

-distrubute the 2 through the parentheseas

-subtract 18-12

-subtract 10 on both sides

-divide both sides of the equation by 2

-y=-2

Marias steps

-divide both sides by 2

-subtract both sides by -5

-y=-2

Step-by-step explanation:

all you had to do is list the steps out. Hope this helps