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tatiyna
2 years ago
13

F(x) = –3x2 – 7x Find f(7)

Mathematics
2 answers:
Dominik [7]2 years ago
7 0

Answer:

ez

Step-by-step explanation:

mel-nik [20]2 years ago
7 0

Answer:

-55

Step-by-step explanation:

f(7)= -3x2- 7(7)

=-6-49

=-55

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Daisy has a marble collection in her room the ratio of blue marbles to red marbles are 4 : 7 if she has 24 blue marbles how many
Masteriza [31]

Answer:

The answer is 24:42

Step-by-step explanation:

All you have to do is multiply 7 by 6 because for every red marbles there are 6 marbles.

Hopes this helps!!

4 0
2 years ago
Read 2 more answers
I need this answer asap
antoniya [11.8K]

Answer:

240

Step-by-step explanation:

5 0
3 years ago
Task 1
CaHeK987 [17]

Answer:

part 1 : y = x^2 + 3x + 5

y = x + 13

solution:

x^2 + 3x + 5 = x + 13

x^2 + 2x -8 = 0

(x+4)(x-2) = 0

x = -4 or x = 2

if x = -4, y = 9

if x = 2 , y = 15

part 2 : x^2 + 2x + 1 = 0

(x + 1)^2 = 0

x = -1

y = 1

task 2

part 1 : Let our two digit number be 26

Next, we rewrite it as a difference of two numbers

26=32-6

We want to square 26 using the identity:  

In this case,

x=32

y=6

Substituting into the identity

 plz make me brainliest

7 0
3 years ago
Combine like terms. <br> 2ac+4b+6ac-7a-b=
wolverine [178]

Answer:

8ac+3b-7a

Step-by-step explanation:

2ac+6ac+4b-b-7a=

3 0
3 years ago
Read 2 more answers
(2) Using the distance formula, d = √(x2 - x1)2 + (y2 - y1)2, what is the distance between point (-2, 2) and point (4, 4) rounde
monitta

Using the distance formula, d = \sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2  } \\, what is the distance between point (-2, 2) and point (4, 4) rounded to the nearest tenth?

Using the points given, plug them into the equation.

d = \sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2  } \\d = \sqrt{((4) - (-2))^2 + ((4) - (2)^2  } \\d=\sqrt{(4+2)^2 + (4-2)^2}\\d=\sqrt{(6)^2 + (2)^2}  \\d=\sqrt{36+4} \\d=\sqrt{40} \\

Plug this into a calculator and you get 6.32455532

Since you only need it up to the tenth (0.1), round up 6.32

<em>Five or more, let it soar. Four or less, let it rest.</em>

Since two is lower than four, we drop it.

Therefore, the distance between points (-2, 2) and (4, 4) is 6.3

Hope this helps ^w^

8 0
3 years ago
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