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4 years ago

Simplify negative 7 and 1 over 8 − negative 9 and 1 over 2.

Mathematics

1 answer:

bulgar [2K]4 years ago

5 0

Answer:

answer is D : 2 3/8

Step-by-step explanation:

You might be interested in

A shipment of 17 televisions sets contains 3 defective sets. A hotel purchases 8 of these televisions sets. What is the probabil

Nuetrik [128]

Answer:

p=0.8765

Step-by-step explanation:

Let the following variables be represented as below:

Total Set,t=17

Def,d=3

Not Def,n=14

Purchases,p=8

The number of ways the hotel can receive at least one defective set in a purchase of 8 sets is calculated using the combination:-

$p(\geq 1)=1-\frac{(_dC_0)(_nC_p)}{(_tC_p)}\\p=1-\frac{(_3C_0)(_14C_8)}{(_1_7C_8)}\\p=1-0.1235\\p=0.8764$

So the proability of getting at least one defective unit is 0.8765

6 0

4 years ago

Which of the following expression has more than one term? t-t, 18, dz, or 4q

katrin [286]

Answer:

t-t

Step-by-step explanation:

6 0

3 years ago

What polynomial, when divided by 7y^3, yields 3y^2-4y+7 as a quotient?

weqwewe [10]

Answer: 21y^5-28y^4+49y^3

If the remainder isn't necessarily zero, we add C_1y^2+C_2y+C_3, which covers all possible remainders when dividing by a polynomial with leading term in y^3.

Step-by-step explanation:

(3y^2-4y+7)(7y^3) =

21y^5-28y^4+49y^3

7 0

4 years ago

Can someone help me out with this? I’m not sure what I’m doing wrong.

Nadusha1986 [10]

Answer:

Step-by-step explanation:

This is a system of inequalities such that:

$\left \{ {{2x+3y\geq 2} \atop {3x-4y\leq 3}} \right.$

Let's start by solving for y for both equations:

Equation 1:

$2x+3y\geq 2\\\\3y\geq -2x+2\\\\y \geq \frac{-2x+2}{3}$

Equation 2:

$3x-4y\leq 3\\\\-4y\leq -3x+3\\\\y\geq -\frac{(-3x+3)}{4}$

Now if we substitute the 2nd y into the first equation we obtain:

$2x+3(\frac{3x-3}{4}) \geq 2\\\\2x+\frac{9x-9}{4}\geq 2\\\\\frac{8x+9x-9}{4}\geq 2\\\\17x-9\geq 8\\\\17x\geq 17\\\\x\geq 1$

Now we will solve for the second equation using the first result of y and we obtain:

$3x-4(\frac{-2x+2}{3}\leq 3\\\\3x+\frac{8x-8}{3}\leq 3\\\\\frac{9x+8x-8}{3}\leq 3\\\\17x-8\leq 9\\\\17x\leq 17\\\\x\leq 1$

And so our solution for the system of equations is:

$x \leq 1\\and \\y\geq \frac{-2x+2}{3}$

As well as:

$x>1\\and\\y\geq \frac{3x-3}{4}$

4 0

4 years ago

What two numbers multiply to get -140 but add to get -4

dalvyx [7]

In order to get -140, one number has to be negative and one number has to be positive. And these two numbers when added together give you a -4, which means the greater of these numbers has to be negative.

Try guess and check strategy by listing possible factor combinations for -140 and see which one works!

4 0

3 years ago