can someone pls help for brainlest and

Answer:

1) He measured an octagon

2) 89°

Step-by-step explanation:

All other conventional shapes are less than 900°. An octagon is 1080°. To find missing angle you [tex]1080-991=89[/tex]

Answer:

12.5

Step-by-step explanation:

We can use ratios to solve

4        4+6

---- = ----------

5         AC

4        10

---- = ----------

5         AC

Using cross products

4 * AC = 5*10

4AC = 50

Divide by 4

AC = 50/4

AC =12.5

Answer:

6 people

Step-by-step explanation:

8/40 = x/32

multiply both sides by 32: 8(32)/40 = x

x = 256/40

= 6.4

≈ 6

Answer:

15.2%

Step-by-step explanation:

P = 5/(5+4+3) × 4/(5+4+3-1) = 5/12 × 4/11 = 5/33 * 100 = 15.2%

Answer:

111

hope that helps!

Answer:

9 and 10

Step-by-step explanation:

square root of 86 is 9.2 (ish)

9514 1404 393

Answer:

  1.2 t/m³

Step-by-step explanation:

1 tonne is 1 Mg = 10⁶ g

1 m³ is (100 cm)³ = 10⁶ cm³

The conversion is ...

  (1.2 g/cm³) · (1 t)/(10⁶ g) · (10⁶ cm³)/(1 m³)

  = 1.2(10⁶)/(10⁶) t/m³

  = 1.2 t/m³

__

For this conversion, the numerical value does not change. Megagrams per cubic meter is the same ratio as grams per cubic centimeter.

Answer:

24

Step-by-step explanation:

Each book equals 1 so when you count all you will get 24

Answer:

1507 as my perception

Answer:

we don't see the graph, so we cannot tell anything.

Answer:

B

Step-by-step explanation:

Answer:

x = 55 degree

Step-by-step explanation:

let the another angle be y

y+108=125 (sum of two interior opposite angle is equal to the exterioe angle formed)

y=125-108

y=17

y+x+108=180 degree (sum of interior angle of a triangle)

17 + x + 108 =180

x + 125 =180

x = 180-125

x=55

Answer:

replace the ys with -3 then solve it

Answer:

40

Step-by-step explanation:

4 + 3(4×3)

4+ 3(12)

4 + 36

= 40

hope this helps please like and mark as brainliest

Oh and please help me with my question

Answer:

1.27 centimeters

Step-by-step explanation:

brainliest??

Answer:

$30

Step-by-step explanation:

$120 per hour/4 hours=$30

Answer:

cubic polynomial

Step-by-step explanation:

3 is highest exponent and 3 is cubic

there are more than 3 terms, so it's polynomial (poly=many)

Answer:

k = 28

Step-by-step explanation:

[tex]t = 6n - 1 \\ 167 = 6k - 1 \\ 6k = 168 \\ k = 28[/tex]

Answer:

(0.88, 0,65)

Step-by-step explanation:

what do we have to do ? I assume we need to find the crossing point between the 2 lines.

when looking at the graphic, we can already rule out the first, third and fourth option.

none of the coordinates of that point is larger than 1 in any direction or smaller than 0.5.

so, just by looking at things I immediately "bet" on answer option 2 (0.88, 0.65).

but let's check.

y = -2x/5 + 1

y = 3x - 2

for the crossing point both functions must produce the same functional value.

=>

-2x/5 + 1 = 3x - 2

-2x/5 + 5/5 = 15x/5 - 10/5

-2x + 5 = 15x - 10

15 = 17x

x = 15/17 = 0.88...

y = 3×0.88... -2 = 0.65...

hurray, our original observation and "suspicion" is confirmed.

To find an equation of a line, you have to know the value of slope first. We can find the value of slope by using the formula below:

[tex] \large \boxed{m = \frac{y_2 - y_1}{x_2 - x_1} }[/tex]

m-term represents the slope from y = mx+b.

We are given two coordinate points. Substitute the points in the formula.

[tex] \large{m = \frac{7 - 5}{3 - 0} } \\ \large{m = \frac{2}{3} }[/tex]

Therefore the slope is 2/3.

Next we find the y-intercept. In the form of y = mx+b where m = slope and b = y-intercept. We have got slope, except the y-intercept. We can find the y-intercept by substituting one of gjven points in the equation of y = mx+b.

Since we know the slope - we can rewrite the equation like below:

[tex] \large{y = \frac{2}{3} x + b}[/tex]

Then choose one of two points to substitute. I will choose (0,5). Therefore substitute x = 0 and y = 5.

[tex] \large{5 = \frac{2}{3} (0) + b} \\ \large{5 = 0 + b} \\ \large{b = 5}[/tex]

Thus the y-intercept is (0,5). Note that if the question gives you (0,a) point. That is the y-intercept of graph. So b = a if given (0,a).

Rewrite the equation by substituting the b-value.

[tex] \large{y = \frac{2}{3} x + 5}[/tex]

Hence, the equation of a line that contains those points is y = 2x/3 + 5

Answer

Hope this helps! Let me know if you have any doubts.

Answer:

x - 6

Step-by-step explanation:

I am unfamiliar with such algebra tiles, but logically that set of tiles tells me :

1 x, -1, -1, -1, -1, -1, -1

so,

1×x + 6×(-1) = x - 6

Answer:

3 to 5

Step-by-step explanation:

There are 3 slices of pepperoni,  and there are 5 slices of cheese. Since it says pepperoni to cheese, peperoni would go first. Make sure to use order when calculating ratios.

Hope this helps! Have a wonderful rest of your day!

-kiniwih426

Given:

Consider the expression is:

[tex]13-\dfrac{x}{5}+6.2y+20.5x-\dfrac{3}{8}y[/tex]

To find:

The like terms that can be combined in this expression.

Solution:

Two terms are called like terms, if they have same variables of same degree.

We have,

[tex]13-\dfrac{x}{5}+6.2y+20.5x-\dfrac{3}{8}y[/tex]

In the given expression, the pairs of likes terms are:

Pair 1: [tex]-\dfrac{x}{5}[/tex] and [tex]20.5x[/tex]

Pair 2: [tex]6.2y[/tex] and [tex]-\dfrac{3}{8}y[/tex]

It means [tex]-\dfrac{x}{5}[/tex] can be combined with [tex]20.5x[/tex] and  [tex]6.2y[/tex] can be combined with [tex]-\dfrac{3}{8}y[/tex].

Therefore, the correct option is C.

Answer:

11

Step-by-step explanation:

[tex] \frac{c + 49}{7} \\ = \frac{28 + 49}{7} \\ = \frac{77}{7} \\ = 11[/tex]

Answer:

first option

Step-by-step explanation:

[tex] {x}^{3} + 1 - (x - 1) \\ {x}^{3} + 1 - x + 1 \\ {x}^{3} - x + 2[/tex]

Answer:

Recursive rule for arithmetic sequence = an = a[n-1] + 3

Step-by-step explanation:

Given arithmetic sequence;

-7, -4, -1, 2, 5, …

Find:

Recursive rule for arithmetic sequence;

Computation:

Let a1 = -7

So,

⇒ a2 = a1 + 3 = -4

⇒ a3 = a2 + 3 = -1

⇒ a4 = a3 + 3 = 2

⇒ a5 = a4 + 3 = 5

So, the recursive formula is

⇒ an = a[n-1] + 3

Recursive rule for arithmetic sequence = an = a[n-1] + 3

Answer:

your answer is D. 24 cubic cm

Step-by-step explanation:

your welcome good day :)

Answer:

--273

Step-by-step explanation:

100th term is equal a1 + 99d so

100th term = 222 + (-5×99) = -273

Answer:

find F

Step-by-step explanation:

this graph does not need to be in any order, but heres my suggestions to get it right:

Point B is ALWAYS on the opposite side of C