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natali 33 [55]
3 years ago
13

Help for brainliest plz

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
4 0

Answer:

6/2 mark me as brainliest please

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Michael has $2.25 worth of dimes and quarters. He has twice as many dimes as
tatiyna

Answer:25x+10x=$2.25

25=quarters and 10=dimes x is what we will plug in (how many coins Michael has for each type of coin) and $2.25 is how much money he has all together

Step-by-step explanation:

i used a money calculator and this is what it came too.

6 0
3 years ago
Given the function f)(x) =-x^2+3x+8,determine the average rate of change of the function over the interval listed in the picture
Nadusha1986 [10]

Answer:

Vertex:

(

3

2

,

−

41

4

)

(

3

2

,

-

41

4

)

Focus:

(

3

2

,

−

10

)

(

3

2

,

-

10

)

Axis of Symmetry:

x

=

3

2

x

=

3

2

Directrix:

y

=

−

21

2

y

=

-

21

2

x

y

0

−

8

1

−

10

3

2

−

41

4

3

−

8

4

−

4

Vertex:

(

3

2

,

−

41

4

)

(

3

2

,

-

41

4

)

Focus:

(

3

2

,

−

10

)

(

3

2

,

-

10

)

Axis of Symmetry:

x

=

3

2

x

=

3

2

Directrix:

y

=

−

21

2

y

=

-

21

2

x

y

0

−

8

1

−

10

3

2

−

41

4

3

−

8

4

−

4

Step-by-step explanation:

7 0
3 years ago
A railroad crossing sign has a diameter of 30 inches. what is the area of the sign?
Anna007 [38]

Answer:

706.5m^2

Step-by-step explanation:

The sign is a circle

Area of a circle is (pi)r^2

d = 30 in -> r = d/2  = 30/2 = 15

Area = 3.14 x (15)^2 = 706.5m^2

5 0
2 years ago
Read 2 more answers
Anwers : <br> a. dotted<br> b. y=-x+4<br> c. y=x-4<br> d. y=x+1<br> e. solid<br> f. yes<br> g. no
Ksenya-84 [330]

Answer:

Those answers are correct

5 0
2 years ago
johns test grades in his science class are 82, 93, 75, and 89 what is his average? 1. (87.45) 2. (80.00) 3. (90.40) 4. (89.25) 5
inessss [21]

First you add all the numbers together. So you add 82+93+75+89 to get 339. Once you get that, you divide it by the amount of numbers there are. In this case, it's 4. 339 divided by 4 is 84.75.

HOPE THIS HELPS!!

5 0
3 years ago
Read 2 more answers
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