All categories

3 years ago

WILL MARK BRAINLIEST!! 8x^2-x^2

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

5 0

Answer:

7x^2

Step-by-step explanation:

hope this help's.

You might be interested in

If cos angle A = 342/1000 then what is m angle A to the nearest degree

Arlecino [84]

Answer:

70 degrees

Step-by-step explanation:

If you have a calculator you first change the mode to degrees then do shift/2nd cos to get cos^-1 then enter it like this: cos^-1(342/1000)

and you will get your answer 70 degrees

4 0

3 years ago

3/4 of Hari's marbles are black and 1/5 are green. What would be the ratio of black marbles to the green marbles?

Kazeer [188]

Answer:

➩ 15 : 4 is the ratio

Step-by-step explanation:

Hari's marbles are = ¾ which is black in color.

And ⅕ of his marbles are green in color.

Forming in ratio :

$\sf \to \: \frac{3}{4} : \frac{1}{5} \\ \sf \to \: \frac{3}{4} \times 5 \\ \sf \to \: \frac{15}{4} \\ \sf \to \: 15 : 4 \: ans.$

4 0

3 years ago

Read 2 more answers

In a trivia contest, players form teams and work together to earn as many points as possible for their team. Each team can have

N76 [4]

Answer:

There were 2 expressions I thought of it could be 10 x 5 or 10 + 10 + 10 + 10 + 10. I honestly hope this is the right answer because i'm only in 6th grade but hopefully it's correct.

Step-by-step explanation:

4 0

3 years ago

Use linear combination to solve this problem. show your work.<br><br> 3x + 2y = -4<br> 4x - y = 13

pshichka [43]

Answer:

The solution of the system of equations is the point $(2,-5)$

Step-by-step explanation:

we have

$3x+2y=-4$ -----> equation A

$4x-y=13$ -----> equation B

Multiply the equation B by 2 both sides

$2*(4x-y)=2*13$

$8x-2y=26$ ------> equation C

Adds equation A and equation C

$3x+2y=-4\\8x-2y=26\\----------\\3x+8x=-4+26\\11x=22\\x=2$

Find the value of y

Substitute the value of x in equation A

$3(2)+2y=-4$

$2y=-4-6$

$y=-10/2=-5$

The solution of the system of equations is the point $(2,-5)$

8 0

3 years ago

In a group of 40 people, 35% have never been abroad. Two people are selected at random without replacement and are asked about t

Alisiya [41]

Answer:

$\frac{7}{60}$

Step-by-step explanation:

Given that in a group of 40 people, 35% have never been abroad. Two people are selected at random without replacement and are asked about their past travel experience.

Since the two are drawn without replacement the first trial affects the second trial. In other words, each trial is not independent of the other.

a) Hence this cannot be binomial experiment. The reason is p=probability for each trial is not constant as first draw affect the probability for Ii draw

b) The probability that in a random sample of 2, no one has been abroad

=Prob of selecting both people from the group where no one has been abroad

We have in the group 35% i.e. 14 people never been to abroad

So required probability = Prob of selecting both from 14 people

= $\frac{14C2}{40C2} \\=\frac{14*13}{40*39} \\=\frac{7}{60}$

3 0

3 years ago