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3 years ago

Please help me idk this

Mathematics

2 answers:

leva [86]3 years ago

6 0

Answer:

35 degrees

Step-by-step explanation:

All angles of a triangle add up to 180.

55+90=145.

180-145=35

35 degrees

Pachacha [2.7K]3 years ago

4 0

Answer:

x = 35 degrees

Step-by-step explanation:

the little box on the left side of the ttriangle means that is a 90 degrees angle.

So you add 55 + 90 = 145

Then subtract 180 - 145

which gives you 35

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Your bike was originally purchased for $1,200. It loses about 8% of its original value each year. Write an equation to represent

Arlecino [84]

Answer:

y= 1200(0.92)^x

Step-by-step explanation:

Given data

Cost price= $1200

Rate of decrease= 8%

Let the time be x

The expression that describes an exponential function is

y= ab^x

for decrease b= 1-r

y= 1200(1-0.08)^x

y= 1200(0.92)^x

Hence the expression is

y= 1200(0.92)^x

7 0

3 years ago

The perimeter of a backyard basketball court with four sides is 90 feet. Two sides of the court are each 20 feet long. One side

Alex787 [66]

Given:

The perimeter of a backyard basketball court with four sides is 90 feet.

Two sides of the court are each 20 feet long.

One side of the court is 25 feet long.

To find:

The missing side length of the basketball court.

Solution:

Let x be the missing side length.

The three given sides of the basketball court are 20 feet, 20 feet, 25 feet.

We know that the perimeter is the sum of all sides.

$Perimeter=x+20+20+25$

$Perimeter=x+65$

The perimeter of a backyard basketball court with four sides is 90 feet.

$x+65=90$

$x=90-65$

$x=25$

Therefore, the missing side length is 25 feet and the correct option is B.

4 0

3 years ago

What does x equal? help pls c:

sweet-ann [11.9K]

Answer:

this question answer is 11

8 0

3 years ago

The slope of a line passing through the points (-2, 3) and (2, 7) is 1. a)True b) False

Paraphin [41]

<h3>Answer: True</h3>

Slope formula

m = (y2 - y1)/(x2 - x1)

m = (7 - 3)/(2 - (-2))

m = (7 - 3)/(2 + 2)

m = 4/4

m = 1

7 0

3 years ago

Read 2 more answers

PLEASE HELP

katovenus [111]

<u>Answer:</u>

$593.26

<u>Step-by-step explanation:</u>

We know that the price of the laptop is $2500 and each year its resale value decreases by 25%. It means that 100 - 25 = 75% of the value is retained every year for the resale.

So, the resale value for 1st year = $\frac{75}{100} *2500 =$ $1875

for 2nd year = $\frac{75}{100} *1875 =$ $1406.25

for 3rd year = $\frac{75}{100} *1406.25 =$ $1054.7

for 4th year = $\frac{75}{100} *1054.7 =$ $791.01

for 5th year = $\frac{75}{100} *791.01 =$ $593.25

Or we can use the following formula to find its resale value after 5 years:

$2500*(0.75)^5 =$ $593.26

4 0

3 years ago