I need some math help ​

Hi there! You still remember the Pythagorean Theorem, right? It's useful when it comes to finding a missing leg or side of a right triangle. If you forget then here it is:

[tex] \large \boxed{ {a}^{2} + {b}^{2} = {c}^{2} }[/tex]

Define c = hypotenuse while a and b can be both adjacent and opposite (because a²+b²=b²+a² via addition property)

Since we are missing the adjacent side. Thus,

We define a = 6 and c = 14.

[tex] \large{ {6}^{2} + {b}^{2} = {14}^{2} } \\ \large{36 + {b}^{2} = 196} \\ \large{ {b}^{2} = 196 - 36} \\ \large{ {b}^{2} = 160} \\ \large{ b = \sqrt{160} \longrightarrow \boxed{b = 4 \sqrt{10} }}[/tex]

Put the value of b in a calculator then round to the nearest tenth and get 12.6

Thus, the value of b ≈ 12.6

Next we are going to find the angle in degree. We now know that b ≈ 12.6 or 4sqrt(10)

We can find the value of angle A by using tan or sin but I will use sin instead. Recall the sine ratio which is opposite to hypotenuse. Thus,

[tex] \large{sinA = \frac{6}{14} }[/tex]

Use arcsin(6/14) and put it in calculator.

Then put the decimal value of arcsin in sin and convert in degree form which we should get 24. 555°. Round to the nearest whole number and we get 25°

Thus, the angle A is 25°

Next is we are finding the value of angle B. We aren't going to use any formula or equation. Recall that three angles add up to 180°.

Thus, 25° + 90° + x = 180°

90° comes from a right angle.

115+x = 180

x = 180-115

x = 65°

Thus, the angle B is 65°

Answer

Answer:

rotation

Step-by-step explanation:

GIVE ME MY COOKIE

Answer:

Step-by-step explanation:

As,

Landslide, also called landslip, the movement downslope of a mass of rock, debris, earth, or soil (soil being a mixture of earth and debris).

Landslides occur when gravitational and other types of shear stresses within a slope exceed the shear strength (resistance to shearing) of the materials that form the slope.

Answer:

Landslide                              

Hope this helps. Plz give brainliest

Answer:

the blue line is at the 7 and the blue line is at -1

Answer:

slope = 4/5

Step-by-step explanation:

The question is asking us to find the slope of the line that's parallel to the line whose slope is 4/5.

Recall that parallel lines have equal slopes.

So the slope of the line that's parallel to the one with a slope of 4/5 is 4/5 too.

Therefore, slope = 4/5.

Answer:

180cm2

Step-by-step explanation:

area of a parallelogram is base × height

20×9

180

Answer:

D.180cm2

Step-by-step explanation:

Answer:

Step-by-step explanation:

what do u need help with

Answer:

simplify expression

Step-by-step explanation:

1-9/7n

Answer:

13

Step-by-step explanation:

4^2 is 16

16-3=13

that's all that you have to do you replace the x with 4 and do a normal equation

Answer: y=13

Y=(4)^2-3

y=16-3

y=13

Answer:

This is false. Lines will be congruent if they have the same length, which is not the case in all situations.

Answer:

Line segments are congruent if they have the same length. However, they need not be parallel. They can be at any angle or orientation on the plane. In the figure above, there are two congruent line segments.

Answer:

1st option

Step-by-step explanation:

The solution to f(x) = g(x) is at the points of intersection of the 2 graphs

The graphs intersect at

x = - 3.5 and x = - 0.5 ← solutions

Answer:

the answer is x and y have a weak, positive correlation.

Step-by-step explanation:

if a correlation is strong, it will either be close to 1 or -1 and the further in the decimal, the weaker the correlation becomes. the correlation is positive so that’s how I got the positive.

P.S. im sorry someone sent you a virus. dont download them.

Answer:

a virus

Step-by-step explanation:

Answer:

a 41

when the line touch the circle you have to take the half of it

for b its equal 144

the full circle degree is 360

so we can say the 82+2x=360

because the two lines in the circle equal each other so its means tha the Piece of the circle in the left is equal b too

hopefully its helpful and sorry because of my engilish

*see attachement below for the diagram

Answer:

(252π + 20) cm²

Step-by-step explanation:

The surface area of the resulting solid = curved surface area of the cylinder + area of 1 base of the cylinder + 2(slant height of the cone)

✔️Curved surface area of cylinder = 2πrh

r = ½(12) = 6 cm

h = 18 cm

C.S.A = 2*π*6*18 = 216π cm²

✔️Area of 1 base = πr²

r = ½(12) = 6 cm

Area = π*6²

Area = 36π

✔️Slant height of the cone = 10 cm

✅The surface area of the resulting solid = 216π + 36π + 2(10)

= (252π + 20) cm²

Answer:

y = 4x + 57

Step-by-step explanation:

y = 4x + b

9 = 4(-12) + b

9 = -48 + b

57 = b

y = 4x + 57

It shows your screenshot, but I've filled in the blanks with the answers.

====================================================

Explanation:

Positive integers represent yards that the team gains. On the opposite side, negative integers represent yards the team loses.

For example, if a team gains 3 yards, then we write that as +3 or simply 3. If a team loses 5 yards, then we write -5. Adding 3 to -5 gets us 3+(-5) = -2 showing the overall result is a loss of 2 yards at the end of the second down.

As another example, if a team gains 7 yards on first down, but then loses those 7 yards on second down, then they gained overall 7+(-7) = 0 yards overall. They haven't gone anywhere at the end of the second down.

We could do things the other way around like this. Suppose the team loses 8 yards on first down, but has better luck on second down to gain 8 yards. They get back to the original line of scrimmage (back to the starting point) and we can say -8+8 = 0. The team hasn't gone anywhere, but it could be worse and they could be dealing with a loss of yardage.

It might help to set up a vertical number line to help try to visualize negative numbers. Each gain means you go upward. Each loss means you go downward. In a sense, it's like a skyscraper and each integer represents floors of the building. Negative integers are basement floors. Zero is the ground level.

Answer:

The correct answer is b. $1596.55

Hoped this helped!

Briniliest, pls?

P=1220

r=0.09

n=12 (12 months per year)

t=3 years

Answer:

$4.80

Step-by-step explanation:

$16×30%

= $16×(30/100)

=$16×0.3

=$4.80

Answer:

True

Step-by-step explanation:

2/9 = 0.222222

Answer:

(x + 20) + x = 180

-x                    -x

x + 20 = 180 - x

-x                   -x

20 = 180 - 2x

-180     -180

-160 = -2x

divide by -2 on both sides.

80 = x

Let's double check!

80 + (80 + 20) = 180!

The value of x for line m = 80!

Now let's find the value of x on line n:

(4x + 5) + x = 180

-x                    -x

4x + 5 = 180 - x

-5              -5

4x = 175 - x

+x       +x

5x = 175

divide by 5 on both sides.

x = 35

Let's double check!

35 + (4 x 35 - 5)

= 170 hmm it doesnt match 180 but just go with it.

Answer:

Paint set cost = 10.5 , Sketch book cost = 7 , Brush cost = 1.75

Step-by-step explanation:

Let the cost of paint set be = p

Cost of sketchbook 's' = (2 / 3) p

Cost of brush 'b' = 1/4th of s = 1 / 4 [ (2 / 3) p ] = (1 / 6) p

Total expenditure = Money bought - Money left = 23.25 - 4 = 19.25

Total expenditure = Cost of (pen + of sketchbook + of brush) = p + s + b

= p +  (2 / 3) p + (1 / 6) p  = 19.25 → p + 2p / 3 + p / 6 = 19.25

( 6p + 4p + p ) / 6 = 19.25 → 11p / 6  = 19.25 →  p = ( 19.25  x 6 ) / 11

p = 10.5 ; s = (2 / 3) p  = 2 / 3 (10.5) = 7 ; b = (1 / 6) p  = 10.5 / 6 = 1.75

Answer:

$10

Step-by-step explanation:

6x-15=45

+15. +15

6x=60

/6. /6

x=10

Answer:

$7.5¢ or [tex]7\frac{1}{2}[/tex]

Step-by-step explanation:

Do not use This solution:

Firstly, lets find how much the hats cost initially before the 15% coupon. To do that, divide, not multiply, divide $45 by 15% because 15% off means multiply 15% from the original price. But in this case we need to find the initial amount before the 15% coupon.

15% = [tex]\frac{15}{100}[/tex]

Now, set it up;

[tex]\frac{15}{100}[/tex] ×[tex]\frac{45}{1}[/tex]

45 ÷ 6 = 7.5

Answer:

2000? ... assume $2000

Resale Value = $2000*(1 - 0.25)t/yr

where: t = number of year after purchase

at t = 3 yr

Resale Value = $2000*(1 - 0.25)3 = $843.75

checking: at t = 0 $2000 (purchase price)

at t = 1 yr $2000 - 0.25*$2000 = $2000 - $500 = $1500

at t = 2 yr $1500 - 0.25*$1500 = $1500 - $375 = $1125

at t = 3 yr $1125 - 0.25*$1125 = $1125 - $281.25 = $843.75

Answer:

B. 0

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

y=-3/2(6)+9

y=0

Answer:

it's A.

sorry if you get it wrong but I belive it is A

Answer:

The answer is B.  x=-3 and x=-1

Step-by-step explanation:

got it right