All categories

3 years ago

1,6,15, ?, 45, 66, 91a. 25b. 26d. 28c. 27

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

8 0

Answer:

d.28

Step-by-step explanation:

The pattern is like this : add 5,9,13,17,21,25

so you need to add 13 to 15

and I believe you are missing a number

You might be interested in

On a given day at a local amusement park, 77% of those in attendance rode the roller coaster. There were 1,200 people at the par

Svetach [21]

924

77% of 1200 is 924

5 0

3 years ago

A building is 3 ft from an 8-ft fence that surrounds the property. A worker wants to wash a window in the building 13 ft from t

zloy xaker [14]

Answer:

Length of the ladder used by worker = 17 feet

Step-by-step explanation:

Given:

Height of the window from the ground = 13 ft

Distance of fence from the building = 3 ft

Distance of ladder from the building = (3+8) = 11 ft

We have to find the length of the ladder.

Let the length of the ladder be 'x'

From the diagram we can also say that 'x' is the hypotenuse of the right angled triangle.

Using Pythagoras formula:

⇒ $hypotenuse\ 'x' =\sqrt{(perpendicular)^2+(base)^2}$

Here base length = 11 ft

Perpendicular = 13 ft

Plugging the values:

⇒ $x=\sqrt{(13)^2+(11)^2}$

⇒ $x=\sqrt{(169+121)}$

⇒ $x= \sqrt{290}$

⇒ $x=17.02$ feet

The length of the ladder = 17 feet to its nearest tenth.

6 0

3 years ago

What are the ratios for SIN A and COS A

miskamm [114]

Answer:

Step-by-step explanation:

A good trick for trigonometric functions is to remember SOHCAHTOA:

Sin=Opposite over Hypotenuse

Cos=Adjacent over Hypotenuse

Tan=Opposite over Adjacent

The red arrows on the attachment indicate where opposite, hypotenuse, and adjacent are for angle A.

So in this case, the sin of angle A (opposite over hypotenuse) would be $\frac{24}{26}$ and cos A (adjacent over hypotenuse) would be $\frac{10}{26}$ .

I hope this helps!

6 0

2 years ago

Mr. Greene is trying to decide which charter bus

Nesterboy [21]

Answer: 100 miles

Step-by-step explanation:

300+3x=500+1x

subtract 1 from both sides

300+2x=500

subtract 300 from both sides

2x=200

divide 2

x=100

6 0

3 years ago

Ralph notice that there were 15 girls and 10 boys in his math class. What is the relationship between the number of boys and gir

Firdavs [7]

Equivalent ratios are 15:10 and 3:2.

7 0

3 years ago

1,6,15, ?, 45, 66, 91a. 25b. 26d. 28c. 27​

1,6,15, ?, 45, 66, 91a. 25b. 26d. 28c. 27