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3 years ago

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Mathematics

2 answers:

ANTONII [103]3 years ago

7 0

Answer:

Step-by-step explanation:

-1*(2x-3y+7)

Olin [163]3 years ago

3 0

Answer:

Step-by-step explanation:

X is 1 y is -4

Which gets the following:

X(1) + y(-4) = -3

x(1) + 2(-4) = -7

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A famous study examined the smoking habits of British doctors and whether or not the doctors developed various types of cancers.

Ainat [17]

Answer:

A prospective study

Step-by-step explanation:

A prospective study watches for outcomes, such as the development of a disease (in this case cancer). It also usually involves taking a group of subjects and watching them over a long period of time. The outcome of interest should be common between them (whether certain smoking habits lead to the development of cancer in British doctors).

7 0

3 years ago

Identify the value of x and the length of each secant segment. HELP PLS options: x = 15; PR = 12; PT = 19 x = 15; PR = 19; PT =

Yakvenalex [24]

Answer:

Option C.

Step-by-step explanation:

From the given figure it is clear that

$PQ=5,QR=7,PS=4,ST=x$

So,

$PR=PQ+QP=5+7=12$

$PT=PS+ST=4+x$

Using Intersecting Secants Theorem, we get

$PQ\times PR=PS\times PT$

$5\times 12=4\times (4+x)$

$60=16+4x$

$60-16+4x$

$44=4x$

Divide both sides by 4.

$11=x$

$PT=4+x=4+11=15$

Since, x = 11; PR = 12; PT = 15, therefore the correct option is C.

8 0

3 years ago

Evaluate the following<br><br><img src="https://tex.z-dn.net/?f=%20-%20%20%5Csqrt%5B4%5D%7B256%7D%20" id="TexFormula1" title=" -

poizon [28]

Ur answer is here
Hope it is helpful to u

6 0

3 years ago

A) a shopkeeper buys a camera for $300 and sells it at $360. Calculate the percentage profit.

Lilit [14]

A) profit/original price x100 =percentage profit

(Profit: 360-300=$60)

=60/300 x100
=20%

b) two cameras (original price): 300x2= $600
two cameras (price sold): 360x2 = $720

Profit without discount: 720-600= $120

120-100= $20 discount

20/720 x100 =2.78%

4 0

2 years ago

Read 2 more answers

What is (1,11)(1,-2)

klio [65]

Answer:

explanation

Step-by-step explanation:

That is a line on a graph that intersects both points x=1 and y=11, and x=1 and y=-2.

3 0

4 years ago