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Dima020 [189]
3 years ago
10

If ƒ(x) = 2x2 + 3, then which of the following represent ƒ(-1)? 1 - 1 4 5

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
5 0
I believe it would be -1.
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$18.46
Because gerome collected $9.23 and I mult. 2 times and my answer is: $18.46
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Hello :) <br> Please help me solve this <br><br> Explain answer
kykrilka [37]

Answer:

B because the rotation of the wheel doesn't change the angle of the spokes.

7 0
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140÷(x+9)+(x+4)² when x =1 show work​
Dmitrij [34]

Answer:

39

Step-by-step explanation:

If x=1, then it's equal to 140/(1+9, or 10)+(1+4, or 5)^2, and that is equal to 140/10+5^2, or 140/10+25, and 140/10=14, and 14+25=39

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2 years ago
Uni made a model of a 1970 Ford Mustang using a scale of .5 inches = 9 in. If the actual car is 15 ft long, how long is the mode
kykrilka [37]

Answer:

The model car is 10 inches long

Step-by-step explanation:

To solve this question, we use conversion of units

Feet to inches.

Each feet has 12 inches.

The car is 15ft long.

So the car has 15*12 = 180 inches.

.5 inches = 9 in.

Rule of three

.5 inches - 9 inches

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9x = 180*0.5

9x = 90

x = \frac{90}{9}

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The model car is 10 inches long

7 0
3 years ago
6/2 (1 + 2) ? What is the answer to this the answer choices are: 1, 6, 9, and 3
guapka [62]

Answer:

9

Step-by-step explanation:

6÷2(1+2)

(1+2)

3

6÷2×3

6÷2=

3

3×3

9

4 0
3 years ago
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