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3 years ago

PLEASE, I REALLY NEED YOUR HELP!!!

Mathematics

2 answers:

Naddika [18.5K]3 years ago

6 0

Answer:

so the teacher said its

Step-by-step explanation:

100d+25q +1p

Brrunno [24]3 years ago

3 0

Answer:

d + q + p= ¢

Step-by-step explanation:

you add all the variables

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If a bird is on the ground, 7 ft away from a 10 ft tall tree, then what is the angle (to the

iren2701 [21]

Answer:

The angle is 55°

Step-by-step explanation:

To find the angle at which a bid is looking up on top of a tree that is 10feet tall if the bird is on the ground 7 feet away from the tree, we will follow the steps below:

we will use trigonometric ratio to find the angle

SOH CAH TOA

sinФ = opposite / hypotenuse

cosФ = adjacent / hypotenuse

tanФ = opposite /adjacent

from the diagram below, opposite = 10 feet and adjacent = 7 feet

the best trig.ratio to use is tan

tanФ = opposite /adjacent

tanФ = 10 /7

tan Ф =1.42857

to get the value of Ф, we will take the tan⁻¹ of both-side

tan⁻¹ tan Ф = tan⁻¹ 1.42857

Ф= tan⁻¹ 1.42857

Ф≈55°

Therefore, the angle is 55°

4 0

3 years ago

What is the length of AB?

makkiz [27]

The radius of the circle is given to be r = 14.5

Let the center be O. So OB is the radius = 14.5

We can draw a triangle as shown in the image below. We have a right angled triangle. We know the hypotenuse and the base, we need to find the perpendicular side. This can be done using the Pythagorean theorem.

So, we can write:

$(14.5)^{2}=10^{2}+OA^{2} \\ \\ 
OA^{2}=110.25 \\ \\ 
OA=10.5$

Thus, the measure of OA = 10.5

OB = OA + AB

14.5 = 10.5 + AB
⇒
AB = 4

3 0

3 years ago

Read 2 more answers

Which of the following polygons has five lines of symmetry?

Ivan

Pentagons are and example.

6 0

3 years ago

F(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%2B7%7D%20-%5Csqrt%7Bx%5E2%2B2x-15%7D" id="TexFormula1" title="\sqrt{x+7} -\

elena-s [515]

Answer:

x >= -7 ................(1a)

x >= 3 ...............(2a1)

Step-by-step explanation:

f(x) = $\sqrt{x+7}-\sqrt{x^2+2x-15}$ .............(0)

find the domain.

To find the (real) domain, we need to ensure that each term remains a real number.

which means the following conditions must be met

x+7 >= 0 .....................(1)

AND

x^2+2x-15 >= 0 ..........(2)

To satisfy (1), x >= -7 .....................(1a) by transposition of (1)

To satisfy (2), we need first to find the roots of (2)

factor (2)

(x+5)(x-3) >= 0

This implis

(x+5) >= 0 AND (x-3) >= 0.....................(2a)

(x+5) <= 0 AND (x-3) <= 0 ...................(2b)

(2a) is satisfied with x >= 3 ...............(2a1)

(2b) is satisfied with x <= -5 ................(2b1)

Combine the conditions (1a), (2a1), and (2b1),

x >= -7 ................(1a)

AND

(

x >= 3 ...............(2a1)

x <= -5 ................(2b1)

)

which expands to

(1a) and (2a1) OR (1a) and (2b1)

( x >= -7 and x >= 3 ) OR ( x >= -7 and x <= -5 )

Simplifying, we have

x >= 3 OR ( -7 <= x <= -5 )

Referring to attached figure, the domain is indicated in dark (purple), the red-brown and white regions satisfiy only one of the two conditions.

3 0

3 years ago

Read 2 more answers

What pattern would to you expect when two variables are related by a linear model with a positive slope

olganol [36]

There isnt one its has to be consistent but honestly idk

4 0

3 years ago