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3 years ago

3 Which expression is equivalent to 19 - 27?

Mathematics

2 answers:

Elanso [62]3 years ago

4 0

Answer: 19 + (-27)

Step-by-step explanation:

aleksandr82 [10.1K]3 years ago

3 0

Answer:

19 +-27

Step-by-step explanation:

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Find the sum of the geometric sequence. 4 divided by 3, 16 divided by 3, 64 divided by 3, 256 divided by 3, 1024 divided by 3

Art [367]

Answer:

Sum = $\frac{1364}{3}$

Step-by-step explanation:

The given geometric sequence is:

$\frac{4}{3}, \frac{16}{3}, \frac{64}{3}, \frac{256}{3},\frac{1024}{3}$

The first term of the sequence is $a_{1}=\frac{4}{3}$

The common ratio of the sequence is:

$r=\frac{\frac{16}{3} }{\frac{4}{3} }=4$

There are 5 terms in total in the given sequence so n = 5

The formula to calculate the sum of finite geometric sequence is:

$S_{n} = \frac{a_{1}(1-r^{n}) }{1-r}$

Using the given values, we get:

$S_{5}=\frac{\frac{4}{3} (1-4^{5}) }{1-5} = \frac{1364}{3}$

Therefore, the sum of given geometric sequence is $\frac{1364}{3}$

5 0

4 years ago

The cost for 4 hours of math tutoring is 186. The cost for 24 hours is 1001. Write a linear equation to find the total cost “C”

Dvinal [7]

so if 4 hours of math is 186, one hour is 46.5, therefore when you write a liner equation, you start with y=46.5x and then multiply 19 by 46.5

8 0

3 years ago

All of the following statements are true, except . . .

nika2105 [10]

Answer:

it cannot be the third one

Step-by-step explanation:

the reason why is because if you multiply anything by 0 its 0. and 0 is not a positive or negative.

plz give brainliest!!!

3 0

3 years ago

Read 2 more answers

Please help and please slove and explain im not getting this

OLga [1]

Answer:

x-intercept= (3⅓, 0)

y-intercept= (0, 4²⁄₇)

Please see the attached picture for the graph.

Step-by-step explanation:

-9x -7y= -30

Let's simplify the equation by dividing both sides by -1.

9x +7y= 30

x- intercept occurs at y= 0.

When y= 0,

9x +7(0)= 30

9x= 30

x= 30 ÷9

$x = 3 \frac{1}{3}$

Thus, x- intercept occurs at (3⅓, 0).

y-intercept occurs at x= 0.

When x= 0,

9(0) +7y= 30

7y= 30

y= 30 ÷7

$y = 4 \frac{2}{7}$

Thus, y- intercept occurs at (0, 4²⁄₇).

_____

To graph the equation, draw the x and y axis on a graph paper. Use an appropriate scale to divide the line into equal parts. Next, plot the points (3⅓, 0) and (0, 4²⁄₇). Then, join the two points with a straight line.

Notes:

x- intercept is the point at which the graph cuts through the x- axis. In this case, your x- axis is the horizontal line that runs from left to right of your graph paper. In order for a point to be on this horizontal line, look at the y- axis and notice that it sits at y= 0. The same reason applies for why the y- intercept occurs at x= 0. This has to do with the two axis cutting each other at the point (0,0), resulting in the x and y coordinates of 0 for the y and x intercepts respectively.

Simplifying the equation in the first step is not necessary, but it is a good practice and might reduce carelessness.

5 0

2 years ago

A test takes less than 50 minutes to complete. Thirty-eight minutes have passed. Which inequality represents m, the possible num

hoa [83]

Answer:

m + 38 less-than 50

Step-by-step explanation:

this what you looking for?

7 0

3 years ago