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frosja888 [35]
3 years ago
6

When f(x) = 7x^2 - 2x + 4, evaluate f(-1) f(-1) =

Mathematics
1 answer:
Blizzard [7]3 years ago
5 0

Answer:

13

Step-by-step explanation:

do u want me to elaborate on how I found it>

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Find the value of x in the figure.
Bumek [7]
72 -180=108 degrees a straight line is 180 degrees so subtract that by 72
6 0
3 years ago
Read 2 more answers
Use the numbers 7,5,6, and 3 and only use each number once it has to equal 75. You may use addition, subtraction, multiplication
Drupady [299]

Answer:

(7+5)*6+3=75

Step-by-step explanation:

You could just i mean try different ways in order to find the answer. I just tried multiple ways until i got this though (sorry if it is disappointing :( I just did it)

The * means multiply

4 0
3 years ago
Read 2 more answers
A right triangle has side lengths 7, 24, and 25 as shown below.
Alla [95]

9514 1404 393

Answer:

  • tan(A) = 7/24
  • sin(A) = 7/25
  • cos(A) = 24/25

Step-by-step explanation:

The mnemonic SOH CAH TOA can help you remember the trig ratios:

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

  Tan = Opposite/Adjacent

With respect to angle A, the sides are Adjacent = 24; Opposite = 7, Hypotenuse = 25. Then the desired trig ratios are ...

  tan(A) = 7/24

  sin(A) = 7/25

  cos(A) = 24/25

5 0
3 years ago
Reba measured a house and its lot and made a scale drawing. She used the scale 9 inches = 7 feet. What is the scale factor of th
Otrada [13]

The scale factor of the Reba's drawing is 9/84, 3/28

Step-by-step explanation:

The scale factor is the ratio between the two corresponding sides of the figure. The point worth noting in computing the scale factor is that both sides must have similar units of dimension while using for comparison purpose.

Given the scale used by Reba is 9 inches to 7 feet

Since both the units are different, we have the option to either convert inches to feet or vice versa

We proceed with converting feet to inches

We know that 1 foot equals to 12 inches. Hence 7 feet would equal 84 inches.

Now scale factor= first dimension/ corresponding dimension

Scale factor= 9/84 which can be reduced to 3/28

4 0
3 years ago
georges page contains twice as many typed words as bills page and bills page contains 50 fewer words than charlies page. the dif
Lemur [1.5K]
Let
Cp= Charlie's page
Gp= George's page
Bp= Bill's page

To get Charlie's page:
2 (Cp+50)- Cp=210
2 Cp + 100-Cp=210
Cp= 210-100
Cp= 110

to get Bill's page:
Bp=Cp+50
     = 110+50
 Bp= 160

to get George's page
Gp=2(Bp)
     = 2(160)
Gp= 320

therefore:
Cp= Charlie's page has 110
Gp= George's page has 320
Bp= Bill's page has 160






5 0
3 years ago
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