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3 years ago

Pls help I have today to finish this

Mathematics

2 answers:

Charra [1.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

Ghella [55]3 years ago

5 0

Answer:

Step-by-step explanation:

because 50 pints

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Need help with number 5 and number 6

Goshia [24]

Answer:

5 d) 9 1/3

6 d) 2

Step-by-step explanation:

Proportions:

7 ⇒ 4

BY ⇒3

BY = 7*4/3

BY = 28/3

28/3 = 27/3 + 1/3 = 9 1/3

BY = 9 1/3

12 ⇒ 3

8 ⇒ SX

SX = 3*8/12

SX = 2

7 0

3 years ago

Which of the following expressions is equivalent to (x + 5) ^2

Karo-lina-s [1.5K]

(X+5)^2 = x^2 +10x + 25

the expression that is equivalent to

To multiply it we apply FOIL method
Multiply x with x+5 first and then we multiply 5 with x+5

7 0

3 years ago

Mary made 85% of her free-throw attempts. If she missed only six free

posledela

Answer:

Step-by-step explanation:

given the fact that mary made 85% of her free throws attempts,

thus she missed the rest 100 minus 85= 15% of the attempts. let the total number of attempts be x. thus:

15% of x=6

15/100 x=6

solve by cross multiplying

x=6 100/15

x=40

hope this helps

7 0

4 years ago

A vehicle factory manufactures cars. The unit cost C (the cost in dollars to make each car) depends on the number of cars made.

Snezhnost [94]

Answer:

The minimum unit cost is 5377

Step-by-step explanation:

Note that we have a cudratic function of negative principal coefficient.

The minimum value reached by this function is found in its vertex.

For a quadratic function of the form

$ax ^ 2 + bx + c$

the x coordinate of the vertex is given by the following expression

$x=-\frac{b}{2a}$

In this case the function is:

$C(x) = x^2 - 400x + 45,377$

So:

$a=1\\b=-400\\c=45,377$

Then the x coordinate of the vertex is:

$x=-\frac{-400}{2(1)}$

$x=200\ cars$

So the minimum unit cost is:

$C(200) = (200)^2 - 400(200) + 45,377$

$C(200) = 5377$

6 0

3 years ago

Read 2 more answers

Find X- Y if X= 1/4 and Y= -X A) 1/3 B) 1/2 C) -1/3 D)-1/2

77julia77 [94]

Answer:

Step-by-step explanation:

x = 1/4

y = -x = -1/4

$x-y=\frac{1}{4}-(-\frac{1}{4})\\\\=\frac{1}{4}+\frac{1}{4}\\\\=\frac{1+1}{4}\\\\=\frac{2}{4}\\\\=\frac{1}{2}$

6 0

3 years ago