please help i have been struggling

Answer: 0.4 or 4 i think

Answer:

1

Step-by-step explanation:

BD = BC + CD = (7 + 17x)

BE = BA + AE = (8 + 13x)

By intersecting secants theorem:

[tex] BC\times BD = BA\times BE[/tex]

[tex] 7(7+17x) = 8(8+13x)[/tex]

[tex] 49+119x = 64+104x[/tex]

[tex]119x -104x = 64-49[/tex]

[tex]15x = 15[/tex]

[tex]x = \frac{15}{15}[/tex]

[tex]x =1[/tex]

Answer:

the area of this triangle is 7(5) which equals 35 sq cm

Step-by-step explanation:

no parallelogram shown?

Answer:

Below.

Step-by-step explanation:

A. Required probability = 11/80.

B. 3700 * 11/80 = 508.75 so the predicted number would be 509.

Answer: 5/4

Step-by-step explanation:

4/6

just add the numerators and denominators

Answer:

Step-by-step explanation:

use pythageran theorem

c=square root of a2+b2

but we are solving angle b

so

b2=c2-a2

b2=225-196

b2=29

b approximately = 5.39 Rounded up

Answer:

5.4

Step-by-step explanation:

c² = a² + b²

15² = 14² + b²

225 = 196 + b²

b² = 225 - 196

b² = 29

b = 5.4

Answer:

10^-5= 1/10^5

so option c is correct

Answer:

18cm3

Step-by-step explanation:

3x2x3=18

Length x Width x Height

Hope this helps plz like& brainly

Answer:

353.77

Step-by-step explanation:

the formula of finding the volume of a cone is 1/3times pie times radius squared times height do it with a calculator to get the answer

Answer:

x <6

Step-by-step explanation:

bots these days i swear

Answer:

I believe it's C

Step-by-step explanation:

The surface area of the bottom is 64 because it's 8 times 8.

All of the sides are 8 times 12.

8 times 12 is 96.

96 times 4 (for all four sides) is 384.

So the sides (384) plus the bottom (64) is 448, or C

Answer:

(a+b)²-2ab

Step-by-step explanation:

First we need to factorize (a+b)²

(a+b)² = a² + 2ab + b²

(a+b)² = a²+b²+2ab

Subtract 2ab from both sides

(a+b)² - 2ab = a²+b²+2ab - 2ab

(a+b)²-2ab = a²+b²

Swap;

a²+b² = (a+b)²-2ab

Hence the expression of a² + b² is  (a+b)²-2ab

Answer:

72 ft^2

Step-by-step explanation:

area = length x width

1/2 x 8 = 3

3 x 24 = 72

Answer:

Total wrapping paper need = 960.84 inch²

Step-by-step explanation:

Given:

Height of cylinder box = 8 inch

Radius of cylinder box = 9 inch

Find:

Total wrapping paper need

Computation:

Total wrapping paper need = Total surface area of cylinder

Total surface area of cylinder = 2πr(h + r)

Total wrapping paper need = 2[3.14][9][8+9]

Total wrapping paper need = 2[3.14][9][17]

Total wrapping paper need = [6.28][9][17]

Total wrapping paper need = [56.52][17]

Total wrapping paper need = 960.84 inch²

Answer:

y = mx + b

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

Answer:

Step-by-step explanation:

y = mx + b is the correct way to write slope intercept form.

Answer:

2m

Step-by-step explanation:

GCF of 8 and 18 is 2 and m is the only variable in both parts of the equation.

Answer:

105 m²

Step-by-step explanation:

Dividing the figure into 3 rectangle will be easier to find its area.

The area of the larger rectangle

= (10-5) × 13

= 65 m²

The total area of the 2 smaller rectangles

= 2 × (4×5)

= 40 m²

The area of the figure

= 65 + 40

= 105 m²

7.

lateral surface area of traingular prism=perimeter of traingle ×length=[5+3+4]×6=72cm²

curved surface area=2[area oftraingle]=2×1/2×4×3

=12cm²

now

total surface area=72cm²+12cm²=84cm²

8.

volume of traingular prism=area of traingle ×length

=1/2×12×3.4×4=81.6in³

Answer:

a = 27

b = 38

c = 19

Step-by-step explanation:

a + b + c = 84

b = 2c

a = 8+c

8+c +2c+c = 84

4c + 8 = 84

4c = 76

c = 19

b = 2(19) = 38

a = 8 + 19  = 27

Its 10.4 you are correct

Answer:

n=12

Step-by-step explanation:

lol we meet again

just use the permutation formula for this one.

n!/(n-3)!=1320

[n×(n-1)×(n-2)×(n-3)!]/(n-3)!=1320

n(n-1)(n-2)=1320

(n²-n)(n-2)=1320

n³-3n²+2n-1320=0

n=12

Answer:

Step-by-step explanation:

you’re given A=0.62 and B/A=0.93

you’re solving for B

substitute your A value of 0.62

B/0.62=0.93

same as B/0.62=0.93/1

now cross multiply

B= 0.62x0.93

B=0.5766

B=0.58

Answer:

2nd chioce

Step-by-step explanation:

- 10/12 or -5/6

Step-by-step

-2/3 × 5/4 = -10/12

OR

-10÷2/12÷2 = -5/6

hope this helps

Answer:

150 of Grant`s coins are quarters. i hope this helped

Answer:23/10

Step-by-step explanation:

Answer:

10344.827586 basketballs

Step-by-step explanation:

A room measures 15 ft by 20 ft by 10 ft. If a basketball has a diameter of 9.6 inches, approximately how many basketballs will be needed to fill the room?

Step 1

We find the volume of the room

The room is rectangular in shape

Volume = Length × Width × Height

= 15ft × 20ft × 10ft

= 3000ft³

Step 2

Basket ball is spherical in shape

Volume of a sphere = 4/3πr³

Diameter = 9.6 inches

Radius = Diameter/2 = 9.6 /2 = 4.8 inches

Convert Radius from inches to ft

= 4.8inches/12

= 0.408333 feet

Volume of a sphere = 4/3 × π × 0.408333³

= 0.29 ft³

Step 3

3000 ÷ 0.29

10344.827586

Answer:

a) t (α)  =  30 * tan α

b) α =  75 °  is not possible because

Step-by-step explanation:

The vertical cliff  (y),  the observing partner ( 150 ft ) from the point o ( the common point for the cliff and the ground ) between the cliff, and the line of sight from the observer and the climber, shape a right triangle. Hypothenuse is the distance between the partners, the cliff, and distance of the observer to the cliff are the legs.

Then

α is the elevation angle

tan α  =  y / 150           (1)

y(t)  = elevation of the climber

y(t) = speed * time

y(t)  =  5 * t

tan α  =  5 *t / 150

tan α  =  t / 30

t (α)  =  30 * tan α

b) α =  75 °  is not possible because:

tan α  =  y / 150              tan 75°  =  3.73

Then     y  =  3.73 * 150  =  559 ft and the cliff is only 500 ft