All categories

3 years ago

IF YOU CAN HELP! That would be great!

Mathematics

2 answers:

iVinArrow [24]3 years ago

7 0

5x^2 - 6x^2 = - x^2 so its either c or d.

and + 9x - )-3x) = 9x + 3x = + 12x

so the answer s C.

UNO [17]3 years ago

5 0

5x2+9x+3
-6x2+3x
The answer is that you just solve it like this ==>-x2+12x+3
Finished!!
C is the answer!! ;)

You might be interested in

You have 480 grams of a radioactive kind of samarium. If its half-life is 90 years,

lisov135 [29]

Answer:

120 grams will be left after 180 years.

Step-by-step explanation:

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by

$N(t)=N_0(\frac{1}{2})^\frac{t}{t_{1/2}}$

where,

$N(t)$ = quantity of the substance remaining

$N_0$ = initial quantity of the substance

$t$ = time elapsed

$t_{1/2}$ = half life of the substance

From the information given we know that:

The initial quantity is 480 g,
The half-life is 90 years,
180 years is the time elapsed.

And we want to find how much will be left. For this we use the above formula.

$N(t)=480\left(\frac{1}{2}\right)^{\frac{180}{90}}\\\\N(t)=480\left(\frac{1}{2}\right)^2\\\\N(t)=480\cdot \frac{1}{2^2}=120$

120 grams will be left after 180 years.

3 0

3 years ago

Can the product of 4 and any number always be written as a sum of two equal addends

enot [183]

Answer: Yes

Step-by-step explanation:

Example : 4 x 2 = 8

8 = 4×4

Thus proven YES.

hope this helps also mark me brainliest :)

Good luck

6 0

3 years ago

So I have Edgenuity its a app to help you get better and my teacher give me hard assignments its in math and its hard so I seen

My name is Ann [436]

Answer:

okay whats the question

Step-by-step explanation:

5 0

3 years ago

ILL MARK AS BRAINLESS PLS HELP HURRY

BartSMP [9]

Answer: the first one is 4/3. The second one is 8/20. The third one is 8/8. The fourth one is 7/13!

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Quadrilateral LMNO is similar to quadrilateral PQRS. Find the measure of side QR.

dalvyx [7]

Answer:

The measure of the side $QR$ is 8.8.

Step-by-step explanation:

Since $LMNO \sim PQRS$ , then $SP \propto OL$ , $RS \propto ON$ , $RQ \propto MN$ and $QP \propto LM$ . From figure we have the following relationship:

$k = \frac{OL}{SP} = \frac{ON}{RS} = \frac{MN}{QR} = \frac{ML}{QP}$ (1)

Where $k$ is the proportionality ratio.

If we know that $SP = 13, OL = 55, MN = 37$ , then the measure of side $QR$ is:

$k = \frac{OL}{SP}$ (1b)

$k = \frac{55}{13}$

$k = \frac{MN}{QR}$

$QR = \frac{MN}{k}$ (1c)

$QR = \frac{37}{\frac{55}{13} }$

$QR = 8.745$

The measure of the side $QR$ is 8.8.

4 0

3 years ago