7. Evaluate the expression ab for a = 8 and b=5.

Answer:

53712.4

Step-by-step explanation:

[tex]53.7124 * 10^{3}[/tex] This is the scientific notation, and since we do not have a negative exponent, we can assume that the decimal is going to move to the right, because when it's negative, the decimal will move to the left, making a smaller number.

So, when we move the decimal 3 times to the right, we find it sitting at 53712.4

Answer:

Your answer would be V≈392.7cm³

Step-by-step explanation:

You get this because

Radius= 5cm

Height=15cm

so, V=πr2h

3=π·52·15

3≈392.69908cm³

Hope this helps :).

Answer:

hxr  

=15cm×5cm so the answer is 75cm²

Step-by-step explanation:

Answer:

The answer is 31 hope this helps

[tex]\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}[/tex]

[tex]\stackrel{\textit{"y" varies directly with "x"}}{y=kx}\qquad \qquad \textit{we also know that} \begin{cases} y=-8\\ x = 4 \end{cases}\implies -8=k(4) \\\\\\ \cfrac{-8}{4}=k\implies -2=k ~\hfill therefore~\hspace{10em}\boxed{y=-2x} \\\\\\ \textit{when x = -4 what is "y"?}\qquad y=-2(-4)\implies y=8[/tex]

Answer:

y=8

Step-by-step explanation:

I didn't need a equation if they vary directly with each other then if the sign switches from 4 to -4 then -8 must have switched to 8

Answer:                                                                         1

                                                                                     4

244+6=300  [its a simple addition right?]                 3

brainliest?                                                                      J

                                                                                       E

                                                                                       N

                                                                                      <3   :)

Answer:

A: $48.53

B: $58.23

Step-by-step explanation:

7% of 45.36 is 3.17.

20% of 48.53 is 9.70.

correct me if i'm wrong. hope this helps. :)

Answer:

The total number of strikes the pitcher will throw throughout the game.

Step-by-step explanation:

A.The number of consecutive strikes the pitcher must throw to raise his percentage to 60%.

B. The total number of strikes the pitcher will throw throughout the game.

C.The total number of balls the pitcher will throw throughout the game.

D. The number of balls that the pitcher has already thrown.

Given expression:

x+18x+40

In the expression, x represent the total number of strikes the pitcher will throw throughout the game.

The correct answer is A. The total number of strikes the pitcher will throw throughout the game.

9514 1404 393

Answer:

  58. 2 real roots; see attached for a graph

  59. -6, 3

Step-by-step explanation:

58. A graphing calculator graphs this easily. The graph is shown in the attachment. There are 2 x-intercepts, hence 2 real roots.

__

59. The x-intercepts are (-6, 0) and (3, 0), so the x-values x=-6 and x=3 satisfy the equation y = 0.

Answer: Depends how long he's in school and how far away it is from his house.

Step-by-step explanation:

Answer:

A. f = 400 + 50d

Step-by-step explanation:

First, let's understand each quantity/variable.

Now that we understand these variables, we can conclude that the equation would be A. f = 400 + 50d because to find the total, we have to add the 400 eyeliners sold at the beginning to the 50 eyeliner sales per day.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Answer: C

Step-by-step explanation:

Answer:

B. SSA

Step-by-step explanation:

Because we have 2 sides with a non-included (not in-between the two sides) angle, the triangles are similar by SSA Similarity.

I hope this helps!

Answer:

1.10

Step-by-step explanation:

1.79

0.67

1.12 rounded is 1.10 to the nearest tenth

Answer:

I believe it is the top right scatterplot, I can't tell which letter, I think B though.

Step-by-step explanation:

If you were to put a line of best fit for each graph, the top right scatterplot would be the only one that has a straight line of best fit.

Hope this helps :)

Answer:

Graph B

Step-by-step explanation:

Because it asked for a LINEAR relationship, and Graph B is the closest graph for a LINEAR relationship.

Hope it helps bro.

Answer:

J.

Step-by-step explanation:

There is no solution because these are parallel lines.

Parallel lines never intersect and so they have no solution.

Answer:

1) 21

2a) -23/30

2b) 6/55

Step-by-step explanation:

1) 3(x + 2) + 5x + 7

expand the brackets:

= 3x + 6 + 5x + 7

collect like terms:

= 8x + 13

when x = 1, (just substitute 1 for x)

8(1) + 13

= 8 + 13

= 21

2a)

-9/10 + 2/15

put both fractions on the same denominator (often we can just multiply each denominator by the other one):

so -9/10 * 15/15

= -135/150

and 2/15 * 10/10

= 20/150

now they're both on the same denominator and we can add the numerators:

-135 + 20 = -115

so our answer is:

-115/150

which we can simplify to:

-23/30

2b)

3/11*2/5

Multiplying fractions is very simple, as it doesn't require to have the same denominators. We can just multiply the numerators by each other and same for the denominators:

3*2 = 6

11*5 = 55

therefore, our answer is:

6/55

A)

3(x+2) + 5x + 7

3x + 6 + 5x + 7

3x + 5x + 6 + 7

put x = 1

3(1) + 5(1) + 6 + 7

3 + 5 + 6 + 7

21

B)

a)

[tex]\sf \rightarrow -\dfrac{9}{10} + \dfrac{2}{15}[/tex]

[tex]\sf \rightarrow -\dfrac{9(15)}{150} + \dfrac{2(10)}{150}[/tex]

[tex]\sf \rightarrow -\dfrac{135}{150} + \dfrac{20}{150}[/tex]

[tex]\sf \rightarrow \dfrac{-135+20}{150}[/tex]

[tex]\sf \rightarrow \dfrac{-115}{150}[/tex]

[tex]\sf \rightarrow \dfrac{-23}{30}[/tex]

b)

[tex]\sf \rightarrow \dfrac{3}{11} \ * \ \dfrac{2}{5}[/tex]

[tex]\sf \rightarrow \dfrac{3*2}{11 *5}[/tex]

[tex]\sf \rightarrow \dfrac{6}{55}[/tex]

Answer:

Upper Quartile is 16 according to the diagram.

Solution:

We know that:

Finding the area of the circle:

[tex] \large{|\underline{\mathbb{\red{G}\blue{I}\orange{V}\pink{E}\blue{N}\purple{}\green{ : }\red{}\blue{}\orange{-}}}}[/tex]

[tex] \large{|\underline{\mathbb{\red{T}\blue{O }\orange{ \: }\pink{ F}\blue{I}\purple{N}\green{D }\red{ : }\blue{ - }\orange{-}}}}[/tex]

[tex] \underbrace{\mathbb{CALCULATION}}[/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = \pi {r}^{2} [/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = 3.14 \times {18}^{2} [/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = 3.14 \times 324[/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = 1017.36[/tex]

Thus, The area of the circle is 1017.36 yard²...~

Answer:

D None of these choices are correct.

Step-by-step explanation:

The value of x is 27.

[tex]\frac{x}{9} = \frac{9}{3}[/tex], x = 9 x [tex]\frac{9}{3}[/tex] = 27

Answer:

n < - 0.6

Step-by-step explanation:

- 4n + 0.3 > 2.7

- 4n > 2.7 - 0.3

- 4n > 2.4

[tex]\frac{-4n}{-4}[/tex] < [tex]\frac{2.4}{-4}[/tex]

n < - 0.6

n ∈ ( - ∞ , - 0.6 )

-4n+0.3 > 2.7

-4n+0.3 -3.2 > 2.7-3.2 (Subtract 0.3 from both sides)

-4n > 2.7 - 0.3

-4n > 2.4

-4n/-4 > 2.4/-4 (Divide both sides by -4)

n > -0.6

~

Answer:

Here is my best smile ☺️

Answer:

A distinctions does Russia enjoy is explained below in details.

Step-by-step explanation:

Answer:

The distance between points R and S is [tex]\sqrt{ 29 }[/tex] units

Step-by-step explanation:

Coordinates of point R = (-1, 3)

Coordinates of point S = (4, 1)

Now, by distance formula:

[tex]d(R, S) = \sqrt{ \{4 -( - 1) \}^{2} + {(1 - 3)}^{2} } \\ \\ = \sqrt{ \{4 + 1 \}^{2} + {( - 2)}^{2} } \\ \\ = \sqrt{ \{5 \}^{2} + {( - 2)}^{2} } \\ \\ = \sqrt{ 25 + 4 } \\ \\ \implies \huge \orange{d(R, S) = \sqrt{ 29 } \: units}[/tex]

So, you are correct.

answer:

12 x 4 = 4 you have to multiply and divide and do math and geometry and to be honest i have no idea what i doing but just pretend like this the answer  

Answer: x = -2

Step-by-step explanation: First, add the x values together to get -1x=2, then divide by -1 on both sides to get x = -2.

Answer:

Step-by-step explanation:

We are looking for a fraction with the numerator f and denominator g + 11.

This is:

Step-by-step explanation:

diameter= 8

radius=diameter/2

=8/2

=4

height=2

Volume =r2h

=4*2*2

=16

therefore the volume of the cylinder is 16 cm^3

hope it helps u

pls mark it as the brainliest

Answer:

supplementary

Step-by-step explanation:

we have,

3x+15+2x=180

=> 5x +15 = 180

=> 5x = 180-15

=> 5x = 165

=> x = 165/5

=> x= 33

so, 3x+15 = 3*33+15

=> 99+15

=>114

2x = 2*33

=> 99

now we can check if these angles are supplementary

114 + 99 = 180

so, they are supplementary