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2 years ago

Hi everyone. i'm in 8th grade taking a high school algebra class. can anyone answer this?

Mathematics

2 answers:

soldi70 [24.7K]2 years ago

7 0

Answer:

x = -3

Step-by-step explanation:

7 + 3x + 2x = 3x + 1

7 + 5x = 3x + 1

7 + 2x = 1

2x = -6

x = -3

erastova [34]2 years ago

5 0

Answer:

= −3

Step-by-step explanation:

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A 2-column table with 6 rows. The first column is labeled x with entries negative 4, negative 3, negative 2, negative 1, 0, 1. T

arlik [135]

Hello,

$\begin{array}{c|c|c|}&x&f(x)\\1&-4&-10\\2&-3&0\\3&-2&0\\4&-1&-4\\5&0&-6******\\6&1&0\\\end{array}\\$

y-intercept is -6

If x=0 then y=-6

3 0

2 years ago

What is the probability of flipping a coin 10 times and getting tails 7 times ? Round your answer to the nearest tenth of a perc

KatRina [158]

Answer:

Option C: 11.7%

Step-by-step explanation:

The number of elements in sample space when a coin is flipped 10 times will be:

$n(S) = 2^{10} \\= 1024$

Let A be the event that the tails appear 7 times:

Then,

$C_{(n,k)}=\frac{n!}{(k!)(n-k)!} \\where\\n=population\\k=picks\\In our case, k =7\\and\\n=10\\C_{(10,7)}= \frac{10!}{(7!)(10-3)!}\\= 120\\So, \\P(A) = \frac{n(A)}{n(S)} \\P(A) = \frac{120}{1024} \\= 0.1171\\$

Converting into percentage:

$P(A) = 0.1171*100=11.7%$

So, option C is correct ..

6 0

3 years ago

Given that

ANEK [815]

Answer:

Given that,

R = 3x + 9y

Also, given that,

y = 6

R = 7

We have to find the value of x

For that, you can to put 6 and 7 to the equation instead of y and R respectively.

R = 3x + 9y

7 = 3x + 9 × 6

7 = 3x + 54

7 - 54 = 3x

- 47 = 3x

$\frac{-47}{3} = \frac{3x}{3}$

$\frac{-47}{3}=x$

Hope this helps you :-)

Let me know if you have any other questions :-)

3 0

2 years ago

Question in pic. please answer!

Aleksandr [31]

Answer:

The angles from largest to smallest are:

∠A

∠B

∠C

Step-by-step explanation:

We can see in the diagram that

AB = 7

AC = 8

BC = 9

The angles opposite to sides are as follows:

∠A is opposite to BC

∠B is opposite to AC

∠C is opposite to AB

The angle opposite to the largest side of the triangle is the largest and the angle opposite to smallest side of the triangle is the smallest in measurement

Arranging the sides from largest to smallest:

BC, AC, AB

Similarly the angles opposite them will be arranged according to them

∠A, ∠B, ∠C

Hence,

The angles from largest to smallest are:

∠A

∠B

∠C

8 0

3 years ago

Find the simple interest on $500 at 6% for one year

Brrunno [24]

600+700 and that’s the answer

8 0

3 years ago