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3 years ago

Solve the inequality 7(x+2)-5>3(x-1)

Mathematics

1 answer:

loris [4]3 years ago

3 0

Answer:

x>-3

Step-by-step explanation:

I used a calculator

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Chord AB is 3cm from the center of a circle, the radius of the circle is 5cm, calculate the length of the chord.

yan [13]

Answer:

$\large{\boxed{\sf Chord = 8cm }}$

Step-by-step explanation:

First see figure in attachment . As we know that ,Perpendicular from centre of the circle bisects the chord . Hence here ,

OC is the perpendicular bisector of chord AB .
Let us assume that AC = x , therefore ,

$\sf\qquad\longrightarrow AB = 2AC = 2x$

Now in ∆OAC , by Pythagoras Theorem , we have ;

$\sf\qquad\longrightarrow (5cm)^2= x^2+(3cm)^2\\$

$\sf\qquad\longrightarrow 25cm^2=x^2+9cm^2\\$

$\sf\qquad\longrightarrow x^2=25cm^2-9cm^2\\$

$\sf\qquad\longrightarrow x^2=16cm^2\\$

$\sf\qquad\longrightarrow \pink{ x = 4cm }$

Therefore , the length of chord will be ,

$\sf\qquad\longrightarrow AB = 2x \\$

$\sf\qquad\longrightarrow AB = 2(4cm)\\$

$\sf\qquad\longrightarrow \pink{ AB = 8cm }$

Hence the length of chord is 8cm .

8 0

3 years ago

Carmen's city took a telephone poll about a plan to build a new hotel downtown. 6,000 people took the poll. 25% of them were in

Nimfa-mama [501]

People were in favor of the new hotel=25% of 6000 people.
25% of 6000 people=(25/100)*6000=(25*6000)/100=1500 pople.

1500 people were in favor of the new hotel.

4 0

3 years ago

Malika's father also offers to put a gift of money in her savings account. He gives an amount equal to 0.15 times the amount Mal

Llana [10]

We've seen this same question before here on Brainly.

It has never been possible to answer it before, because
we didn't know how much Malika saves, or how much
her grandparents contribute.

We still don't have any of that information.

I'm guessing there are some more sentences to the problem,
before the one that starts out " Malika's father ALSO ...", that
have never been posted.

4 0

4 years ago

Which of these expressions is equivalent to -2(x - 5)?

Vikentia [17]

The answer is C

-2× x＝ -2x
-2×-5＝10

5 0

3 years ago

Read 2 more answers

Help yall, please! thanks

Setler79 [48]

For Problem #2, the second one should be 6x+4x+12, and the third one should be 10x+12

3 0

2 years ago