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Alex
3 years ago
14

If P(X)=X^2+X+1 and Q(X)=4X^2-1, find P(8)

Mathematics
1 answer:
DaniilM [7]3 years ago
7 0

your anwser is 3 because its easy on a calculator

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The square of a number is always larger than the number. it's a true or false question
enot [183]

Answer:

True except when its 0 or 1 squared in which case would be false

Step-by-step explanation:

0^2=0

1^2=1

4 0
4 years ago
What are the fourth, seventh, and tenth terms of the<br> sequence A(n) = 7 + (n - 1)(-3)?
vivado [14]

Answer:

B

Step-by-step explanation:

fourth term

A(4)= 7 - ( 4-1)(-3)

=-2

seventh term

A(7)= 7 - (7-1)(-3)

=-11

tenth term

A(10) = 7 - (10-1)(-3)

= -20

5 0
3 years ago
INSCRIBED ABGLES PLZ HELP
jeyben [28]
<ABC = 61 * 2 = 122 degrees
6 0
3 years ago
Yesterday morning at 8 a.m. the temperature was -14˚F. At noon it was 10 degrees warmer. The temperature increase between noon a
Assoli18 [71]

Answer:

16 (positive 16)

Step-by-step explanation:

Postive is because the first change is positive and the school bell is out sorry

8 0
3 years ago
Read 2 more answers
miguel is 5ft 10 inches tall On a sunny day he casts a shadow of 4ft 2 inches long. At the same time, a nearby electric tower ca
Alex787 [66]
Given:
Miguel's height:
Actual = 5 feet 10 inches
Shadow = 4 feet 2 inches

Tower's height
Actual = x
Shadow = 8 feet 9 inches

First, we need to convert the height into inches to avoid confusion.
1 foot = 12 inches.
Miguel:
5 ft x 12in/ft = 60 inches + 10 inches = 70 inches ACTUAL
4 ft x 12in/ft = 48 inches + 2 inches = 50 inches SHADOW

Tower:
8 ft x 12in/ft = 96 inches + 9 inches = 105 inches SHADOW

Ratio of Actual to shadow:
Miguel: 70 : 50
Tower: x : 105

70 : 50 = x : 105
70*105 = 50x
7350 = 50x
7350 / 50 = x
147 = x

Actual height of the tower is 147 inches or 12 feet 3 inches long.

To check:
Miguel : 70 / 50 = 1.40
Tower : 147 / 105 = 1.40
4 0
3 years ago
Read 2 more answers
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