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2 years ago

The surface area of a square pyramid is 189 in.². The side length of the base is 7 inches. What is the value of X?

Mathematics

1 answer:

alina1380 [7]2 years ago

8 0

Not enough information is given to put an absolute answer it there could be a million reason like d332 nut5 for example

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This is the graph of f(x). what is the value of f(3)

muminat

f(3) is where the line is on the Y axis when X is 3:

Looking at the red line when it passes over X3, the line is on Y8.

The answer is B.8

4 0

3 years ago

Read 2 more answers

Use the table to write a quadratic function in vertex form. Then rewrite the function in standard form.

Kisachek [45]

Answer:

Step-by-step explanation:

The graph decreases at first, then changes direction at (2, 5).

y = a(x-2)^2 + 5

Plug in (1,11) and solve for a:

11 = a(1-2)^2 + 5

a = 6

Equation in vertex form:

y = 6(x-2)^2 + 5

8 0

2 years ago

No copy and paste answers.

miss Akunina [59]

Answer:

2.5 miles

Step-by-step explanation:

The relation between time, speed, and distance is ...

distance = speed × time

We can define t to be Stanley's swimming time. Then t+0.5 was his running time, and 2(t+0.5) was his biking time. His total distance covered is ...

64 = 9(t +0.5) +16(2(t +0.5)) +2.5(t)

64 = 43.5t +20.5 . . . . . . . simplify

43.5 = 43.5t . . . . . . . . . subtract 20.5

t = 1 . . . . . . . . . . . . . . divide by the coefficient of t

Stanley swam for 1 hour, so the distance he covered while swimming was ...

(2.5 mi/h)(1 h) = 2.5 mi

Stanley covered 2.5 miles while swimming.

_____

Additional comment

Stanley ran for 1.5 hours, covering 9×1.5 = 13.5 miles. He biked for 3 hours, covering 16×3 = 48 miles. His total distance was 2.5 +13.5 +48 = 64 miles, as given.

6 0

2 years ago

Two trains travel directly toward each other. One of the trains travels at a rate of 12 km/h while the other travels at a rate o

Schach [20]

Write the equation of the first train: x = 12t
Write the equation of the second train: y = -20t+72, assuming the train one is at the origins when t = 0.
Now solve the equation: 12t=-20t+72,
32t = 72, then t = 2.25 hours. The two train meet after 2.25 hours.
Now the equation of the pigeon is like this: x = 48t.
Then for t = 2.25, we get
$x=2.25\times48=108 km$

The Hyde has flown 108 km when the trains meet.

4 0

3 years ago

At what rate of interest will the sum of Rs . 5000 give an interest of Rs . 1450 in 1year ?

mina [271]

Answer:

I = (PTR)/100

1450=(5000*1*R)/100

1450*100=5000R

145000/50000=R

29=R

6 0

1 year ago