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lora16 [44]
3 years ago
5

If f(x)=3x-4 find f(4)

Mathematics
2 answers:
Aleks [24]3 years ago
6 0

Answer:

8

Step-by-step explanation:

f(x)=3x-4

f(4)=3(4)-4

f(4)=12-4

f(4)=8

SOVA2 [1]3 years ago
4 0

Answer:

8

Step-by-step explanation:

3*4-4

12-4

8

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PLEASE NEED HELP NOW!!!!!!!❤️
alexira [117]

Answer:

A. 2564 cm^2

Step-by-step explanation:

There are two triangles (Which both are the same) and three different rectangles.

1. Let's solve the area of the triangles first!

Formula: bh(1/2)

10(26)(1/2)

130

2. Now, let's multiply by 2 since there's two of them:

130(2) = 260

3. So, we got 260. Let's find the area of the three rectangles!

Formula: bh

Rectangle A: 28(36) = 1008

Rectangle B: 10(36) = 360

Rectangle C: 26(36) = 936

4. Add the area of the triangles and the rectangles!

260 + 1008 + 360 + 936 = 2564

So the surface area is 2564 cm^2

Hope this helps! <3

4 0
3 years ago
I need help<br> With this plz
s2008m [1.1K]

Answer:

The discount is the same.

Step-by-step explanation:

We need to find the ratios of both discounts.

41/50 = 61.5/75

If the question is True, this means that the ratios should be the same. So we have to cross multiply to find the answer.

75*41 = 50*61.5 = 3075

These two multiplication problems both equal 3075. Since the ratios are equal, the discounts are also equal.

4 0
3 years ago
What is the Line that passes through (2,0) and (0,1)
zimovet [89]

To find the slope you use the equation:

m = (y₂-y₁) ÷ (x₂-x₁)

You plug in the two points into this equation to find m (m is the slope)

m = (1 - 0) ÷ (0 - 2)

m = 1 ÷ (-2)

m = - 1/2

Next you use this equation:

y = mx + b

Because you know m you plug it in.

y = -1/2x + b

Now you need to find b. To do so you plug in either of the points into this equation(you come out with the same answer for b)

y = -1/2x + b

1 = -1/2(0) + b

1 = b

Finally you plug in b and you get your new equation.

y = -1/2x + 1

3 0
3 years ago
Read 2 more answers
Brittany went grocery shopping , she spent 4/7 of her money on fresh foods. she spent 2/3 of the remainder of her money on froze
pychu [463]

Answer:

$44

Step-by-step explanation:

Let the total amount of money be represented by Y

Amount spent on fresh food =

\frac{4}{7}  \times y

Remainder =

y -  \frac{4}{7}y  =  \frac{3}{7} y

Amount spent on frozen foods = two-thirds of remainder = $22

=  \frac{2}{3}  \times  \frac{3}{7} y = \frac{2}{7}  y

\frac{2}{7}  y = 22 \\ y = 22 \times  \frac{7}{2} \\ y = 77

The total amount for grocery shopping is $77

Therefore, Brittany spent $44 on fresh foods

=  \frac{4}{7}  \times 77 \\  = 4 \times 11 \\  = 44

5 0
3 years ago
Read 2 more answers
PLEASE HELP MEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Bingel [31]
U would put something like sin(45)  
4 0
3 years ago
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