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3 years ago

(SAT PREP) Find the value of x. (I have several, please help!!)

Mathematics

1 answer:

balandron [24]3 years ago

7 0

question 1 :- sum of all angles of a triangle is 180°

so, x + 39° + 25° + 15° = 180°

⇒x + 79° = 180°

⇒x = 101°

question 2 : draw the along with AD and make and triangle as shown in figure.

as ABCD is a parallelogram. so, angle FDE = 180° - x

and angle FED = 180° - x [ as FEA + FED = 180° ]

now from ∆DEF,

50° + 180° - x + 180° - x = 180°

⇒230° - 2x = 0

⇒x = 105°

also read : If (A + B) =(A-B) then the angle between the Ả and B.

brainly.in/question/12391097

(SAT Prep) In the figure, a+b+d+e =

A. 330°

B. 325°

C. 290°

D. 300°

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The table below shows the data for a random sample of fish that were collected from and later released into a lake: type of fish

Gwar [14]

You were given the data as statistics so that you can predict the number of a certain type of fish through ratio and proportion. The main focus here is then number of bluegill fish. From the given statistics, the number is 87. The total number of fishes at that time was 52+61+87 = 200. So, assuming that this composition is uniform in the said lake. We can then use the ratio from the given statistics to know the proportion of bluegills to the total fishes. Hence, we equate the two ratios:

87/200 = x/800

where x is the number of bluegills among the 800 total fishes that is in proportion to the gathered statistics. Solving for x, we determine the answer to be

x = 348

8 0

3 years ago

Read 2 more answers

Maths help me maths giving 10 point

anyanavicka [17]

Step-by-step explanation:

$x-2>4$

$x>6$

And

$3x+1\leq 28$

$3x\leq 27$

$x\leq 9$

So $x$ ∈ $(6, 9]$

Please give me a brainliest answer

8 0

2 years ago

Which of the following describes the function shown in the table below? x y -4 16 -1 2 2 0. 25 4 0. 0625 5 0. 03125 exponential,

horsena [70]

The given table is an example of constant exponential decay.

It is given that

X Y

-4 16

-1 2

2 0.25

4 0.0625

5 0.03125

<h3>What is an exponential function?</h3>

An exponential function is a relation of the form y = a^x, with the independent variable x ranging over the entire real number line as the exponent of a positive number a.

The y-value at -4 is 16 while the y-value at -1 is 2, a decrement of 1/8 times for an increment in x-value by 3

Again, the y-value at 2 is 0.25 while the y-value at 5 is 0.03125, a decrement of 1/8 times for an increment in x-value by 3.

In both cases, the rate of decrement is constant.

So we can say that this is an example of constant exponential decay.

We can also see this behavior from the attached graph.

Therefore, the given table is an example of constant exponential decay.

To get more about exponential function visit:

brainly.com/question/11464095