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3 years ago

Find the measure of 43.

Mathematics

1 answer:

ad-work [718]3 years ago

3 0

Answer:

88°

Step-by-step explanation:

Because, vertically opposite angles are equal

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What is the radius of a circle with a diameter 200 cm?????????????????????????????

Studentka2010 [4]

Answer:

r = 100 cm

Step-by-step explanation:

The radius is 1/2 of the diameter

1/2 d = 1/2(200) = 100

6 0

3 years ago

Greg and Josh want to go whitewater rafting in 3 weeks. Josh is able to save the $480 he needs to go on the trip by saving the p

Marat540 [252]

Answer:

Josh makes $36 more per hour than Greg.

Step-by-step explanation:

First, you need to determine the amount Josh earns per hour as you know that it takes him 5 hours of work to save $480:

5x=480

Now, you can solve for x:

x=480/5

x=96

Then, you need to determine the amount Greg earns per hour as you know that it takes him 8 hours of work to save $480:

8y=480

Now, you can solve for y:

y=480/8

y=60

96-60=36

According to this, the answer is that Josh makes $36 more per hour than Greg.

7 0

4 years ago

Read 2 more answers

I’m stuck lol pls help

GarryVolchara [31]

Answer:

x=90

Step-by-step explanation:

So, since x-20 is the vertical angle directly near 70, we can say:

x-20=70.

if we solve x is 90.

HOPE IT HELPS!!!!!!!!!!!

4 0

3 years ago

1. Scientists estimate the rate of the wildebeest running at full speed to be 66 feet per second. Write a function rule to descr

lorasvet [3.4K]

1. d. d = 66t

The maximum speed of the wildebeest is v=66 ft/s. Speed is defined as the ratio between the distance covered (d) and the time taken (t):

$v=\frac{d}{t}$

Re-arranging the formula, we get

$d=vt$

And substituting v=66 ft/s, we find

$d=66t$

2. c. y = 5 - n

In fact, we can check that this rule satisfies all the numbers of the sequence:

n=3 --> y = 5 - 3 = 2

n=4 --> y = 5 - 4 = 1

n=5 --> y = 5 - 5 = 0

n=6 --> y = 5 - 6 = -1

3. d. $5.50, $11.00, $16.50; E = 5.50h

In fact, if we use the rule E=5.50 h, we see that the table is completed as follows:

h=1 --> E=(5.50)(1 h)=5.50$

h=2 --> E=(5.50)(2 h)=11.00 $

h=3 --> E=(5.50)(3 h)=16.50$

h=4 --> E=(5.50)(4 h)=22.00$

h=5 --> E=(5.50)(5 h)=27.50$

4. c. if d ≥ 5 then C = 4.70d, if d < 5 then C = 4.70d - 1; $17.80, $32.90

If the number of days is more than 5, the cost is 4.70$ per day, therefore c=4.70d (where d is the number of days); if the number of days is less than 5, one dollar is returned, so the cost will be C=4.70d-1. By applying this rule, we can calculate the rental cost after d=4 days and d=7 days:

- d=4 --> c=4.70*4-1=17.80$

- d=7 --> c=4.70*7=32.90$

5. b. y = 3x + 3

In fact, we can check this is the correct rule by substituting the numbers:

x=0 --> y=3*0+3=3

x=1 --> y=3*1+3=6

x=2 --> y=3*2+3=9

x=3 --> y=3*3+3=12

x=4 --> y=3*4+3=15

7. x -2 -1 0 1 2

y (-16 ) (-6 ) (4 ) (14 ) (24 )

The rule we have to apply is:

-10x + y = 4

Re-arranging it, we can solve for y:

y = 10x + 4

So, let's substitute the different values of x:

x=-2 --> 10*(-2)+4=-20+4= -16

x=-1 --> 10*(-1)+4=-10+4= -6

x=0 --> 10*0+4= 4

x=1 --> 10*1+4=10+4= 14

x=2 --> 10*2 +4 =20+4 = 24

8. y = -5x - 1

In fact, if substitute the different values of x given by the problem, we find:

x = -2 --> y = -5*(-2) -1= 10 -1 = 9

x = -1 --> y = -5*(-1) -1 = 5 -1 = 4

x = 0 --> y = -5*0 -1 = -1

x = 1 --> y = -5*1 - 1 = -6

x = 2 --> y = -5*2 -1 = -11

5 0

3 years ago

Read 2 more answers

. Error Analysis Describe and correct the error

aleksklad [387]

Answer:

Step-by-step explanation:

$\sqrt{144} = 12$

the error was in not take the root of the number correctly

the student assumes that the root of 144 was equal to 72

4 0

3 years ago