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3 years ago

(3x-4)^2 - (2x-1) ^2

Mathematics

1 answer:

Len [333]3 years ago

8 0

Step-by-step explanation:

Hope it helps u

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Find an equation for the plane that contains the point p(−1,3,5)p(−1,3,5) and has the normal vector n=2i+4j−3kn=2i+4j−3k.

coldgirl [10]

Given a plane:
normal vector <2,4,-3>
passes through point (-1,3,5)

The equation of the plane is
Π : 2(x-(-1))+4(y-3)-3(z-5)=0
expand and simplify
Π : 2x+4y-3z+5=0

6 0

3 years ago

The orchard just sold 72 apples, which is 12% of the total number of apples they put up for sale. How many apples did they put u

LUCKY_DIMON [66]

Answer:

600

Step-by-step explanation:

12%=72

1%=6

100%=600

5 0

3 years ago

If half of a box of candy weighs 3/5 of a pound, how much would 4 full boxes weigh?

Reil [10]

So we want to know what a full box is. We have the weight of half a box. So we can use the formula: (2 x 3/5) and you want to know the outcome of four full boxes. So (2x3/5)4
Or: 6/5 x 4

And the answer is 24/5. But if you want to simplify it, it’s 4 4/5

7 0

4 years ago

6. Charlie can spend up to $8 on lunch. He wants to buy a tuna sandwich, a bottle of

PilotLPTM [1.2K]

Answer:

The maximum number of pounds of potato salad that Charlie can buy is 0.375

Step-by-step explanation:

see the attached figure to better understand the problem

Let

a ----> the cost of one tuna sandwich

b ----> the cost of a bottle of apple juice

c ----> the cost per pound of potato salad

x ----> pounds of potato salad

we have

$a=\$4.25$

$b=\$2.25$

$c=\$4.00/lb$

we know that

He wants to buy a tuna sandwich, a bottle of apple juice, and x pounds of potato salad and can spend up to $8

The inequality that represent this situation is

$a+b+cx \leq 8$

substitute the given values

$4.25+2.25+4.00x \leq 8$

Solve for x

Combine like terms

$6.50+4.00x \leq 8$

Subtract 6.50 both sides

$4.00x \leq 8-6.50$

$4.00x \leq 1.50$

Divide by 4 both sides

$x \leq 1.50/4.00$

$x \leq 0.375\ lbs$

therefore

The maximum number of pounds of potato salad that Charlie can buy is 0.375

3 0

3 years ago

Given that SR//TU, show that Angle SVR is similar Angle UVT.

Zinaida [17]

Answer:

See below

Step-by-step explanation:

We are given that $SR ||T U$ . Therefore, $\angle R \cong \angle T$ and $\angle S \cong \angle U$ because alternate interior angles of parallel lines are congruent. Thus, $\triangle SVR \sim \triangle UVT$ by the AA Similarity Postulate. Hope this helps!

4 0

3 years ago

(3x-4)^2 - (2x-1) ^2​

(3x-4)^2 - (2x-1) ^2