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3 years ago

If x= -4 find 3x^2+2x

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

6 0

Answer:

Step-by-step explanation:

3(-4)^2 + 2(-4)

3(16) - 8

48-8

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Dont mind what I have wrote

nlexa [21]

Answer:

n = 10

Step-by-step explanation:

$\dfrac{4^8}{(4^2)^{-3}} \div 4^4 = 4^n$

$\dfrac{4^8}{4^{-6}} \div 4^4 = 4^n$

$4^8 \times 4^6 \div 4^4 = 4^n$

$4^{(8 + 6 - 4)}= 4^n$

$4^{10}= 4^n$

$n = 10$

6 0

4 years ago

Read 2 more answers

Write an expression for the area of each shape provided. Make sure it’s in simplest polynomial form

Yuri [45]

Answer: $6x^{2} +7x-5$

Step-by-step explanation:

area of a trapezoid: a= a+b/2 H

so...

5x+7+x+3/2=6x+10/2=3x+5

then take 3x+5 and multiply it by 2x-1

soo... (3x+5)(2x-1) and I used FOIL

so then 6x^2-3x+10x-5

which is equal to 6x^2+7x-5

I hope this helps =)

6 0

2 years ago

A fruit stand sells apples, peaches and tomatoes. Today, they sold 4 apples for every 5 peaches. They sold 2 peaches for every 3

Brrunno [24]

Answer:

He sold 32 apples, 40 peaches and 60 apples.

Step-by-step explanation:

We are given that

4 apples are sold every 5 peaches and

3 tomatoes are sold every 2 peaches.

i.e. the ratio is apples: peaches = 4 : 5 ...... (1)

and the ratio peaches: tomatoes = 2 : 3 ...... (2)

Peaches are the common link here in both the ratio terms.

Let us make the peaches value in both the <em>ratio as 10 </em>to make it equal in both the ratio terms.

Multiply (1) by 2 and (2) by 5:

The ratio becomes;

apples:peaches = 8:10

peaches: tomatoes = 10:15

In other words, the ratio becomes:

apples:peaches:tomatoes = 8:10:15

Let the number of apples = $8x$

Let the number of peaches = $10x\\$

Let the number of tomatoes = $15x$

We are given that total fruits are = 132

$\Rightarrow 8x+10x+15x = 132\\\Rightarrow 33x = 132\\\Rightarrow x =4\\$

So, number of apples sold = $8 \times 4 = 32$

Number of peaches sold = $10 \times 4 = 40$

Number of tomatoes sold = $15 \times 4 = 60$

7 0

3 years ago

Luther evaluated 2 to the power of 3 as 9 and wade evaluated 3 to the power of 2 as 9 are both students correct explain why or w

Dmitry_Shevchenko [17]

Answer:

Luther is wrong

Wade is right

Step-by-step explanation:

Luther's case 2^3 = 2x2x2 = 8

Wade's case 3^3 = 3 x 3 = 9

7 0

3 years ago

Read 2 more answers

Manuel takes a job translating English instruction manuals to Spanish. He will receive $15 per page plus $100 per month. Manuel

Xelga [282]

Answer:

80 pages

Step-by-step explanation:

$1500 - $300 gaurenteed from monthly = 1200

1200/15=80 pages he has to sell (15 * 80) = 1200

7 0

3 years ago