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Mamont248 [21]
3 years ago
14

Solve and check:8a-4=25+6(a-8)

Mathematics
1 answer:
OlgaM077 [116]3 years ago
5 0
8a - 4 = 25 + 6 (a - 8)

(distribute the 6)

8a - 4 = 25 + 6a - 48

(combine like terms 25 - 48)

8a - 4 = 6a - 23

( subtract 6a from both sides)

2a - 4 = -23

(add 4 to both sides)

2a = -19

(divide both sides by 2)

a = - 9.5

////CHECK/////

8 (-9.5) - 4 = 25 + 6 ( -9.5 -8)

(plug each side into a calculator)

-80 = -80

FINAL ANSWER:

a = -9.5
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If the diameter is 15.5 cm what is the circumference
tresset_1 [31]

Answer:

see below

Step-by-step explanation:

The circumference is given by

C = pi *d

C = 15.5 pi

If we approximate pi by 3.14

C = 15.5 * 3.14

C =48.67

If we use the pi button

C =48.69486813

8 0
3 years ago
What is the transformation of f(x)=- (x + 2)2- 4
pychu [463]

Answer: x=0

Step-by-step explanation: f(x)=(x+2)x2-4

                                               0=2x+4-4

                                                0=2x

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6 0
2 years ago
Mark, Carrie, Max and Jane are doing a probability experiment in math class. They flip a coin 200 times and record their results
cricket20 [7]
Thanks for sharing.
What question are they trying to answer with their experiment ?
What results do they expect ?
What results do they actually get ?
Do you have a question to ask ?
5 0
3 years ago
Help me please thank you
Anni [7]

Answer:

a) the numerator, <em>a</em>, would be a smaller number than the denominator, <em>b.</em>

b) the fraction a/b could be over or under the amount of 1/2.

c) the fraction could be over or under the amount of 1.

Step-by-step explanation:

examples:

a) 2/8

b)3/8 or 6/10

c) 8/9 or 1 1/8

Hope this helps :)

7 0
3 years ago
Can someone show me how to solve this
NISA [10]

Answer:

f(1)=13

f(-9)=88

f(0)=0

f(-15)=20

The above mentioned are false statements

Step-by-step explanation:

f(1)=13 : false because "13" is out of range -40≤f(x)≤-10

f(-9)=88 : false because "88" is out of range -40≤f(x)≤-10

f(0)=0 : false because "0" is out of range -40≤f(x)≤-10

f(-15)=-20 : false because "-15" is out of domain -10≤x≤20

7 0
3 years ago
Read 2 more answers
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