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1 year ago

Urgent help needed. Will mark you brainlest when correct

Mathematics

1 answer:

posledela1 year ago

7 0

Question 7: Option (4)

$A=(3/8)^2=\frac{9}{64}$

Question 8: Option (3)

$A=\frac{1}{2}(17)(9)=76.5$

Question 9: Option (2)

$A=\pi(10)^2 \approx 314$

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Solve for the brainlist

Sergio039 [100]

Answer:

x = 10.0

Step-by-step explanation:

Using the geometric mean formula:

x projection

----------------- = ---------------

entire base x

Here, the projection is 5 and the entire base is (20 + 5). So:

x 5

------------ = ------------

25 x

Cross multiply:

x² = 25 (5)

x² = 100

√x² = √100

x = 10

3 0

2 years ago

I NEED HELP ASAP!!! Find the measure of angle A using the image below:

Andreyy89

Answer:

A = 125º

Step-by-step explanation:

Missing angle is the supplement of 157.5

180 - 157.5 = 22.5

----------------------------

Sum of angles in triangle is 180

22.5 + (-10x) + (-x + 20) = 180

Combine like terms

-11x + 42.5 = 180

Subtract 42.5 from both sides

-11x = 137.5

Divide both sides by -11

x = -12.5

---------------------------

A = -10(-12.5)

A = 125º

6 0

2 years ago

How do I find B??????

yulyashka [42]

The graph shown below can be described using the equation y=Acos(bx)=k. Which of the following is the value of B +K.

I typed ur questions and this cite with problems came up. I believe ur answer is the following of ur question. Hope this helped. :)

4 0

3 years ago

Need help!!!!ASAP

raketka [301]

I hope this helps you

3 0

2 years ago

Here are two offers for batteries.

trapecia [35]

OFFER A is cheaper.

Step-by-step explanation:

Given,

OFFER A

Pack of 5

£2.75

Pay for 3 packs get 1 free

And

OFFER A

Pack of 5

£2.75

Pay for 3 packs get 1 free

To find which offer is cheaper.

For OFFER A

For 4 Packets he needs to pay £2.75

He needs to buy 40 batteries.

He needs to buy 40÷(4×5) = 2 packets.

Total cost = £2.75 ×2 = £5.5

For OFFER B

For 4 Packets he needs to pay £2.52

He needs to buy 40 batteries.

He needs to buy 10 packets.

After discount he has to pay = £2.52 -(£2.52 × $\frac{1}{3}$ ) = £1.68

Total cost = £1.68×10 = £16.8

Hence,

OFFER A is cheaper.

7 0

2 years ago