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Akimi4 [234]
3 years ago
8

Factorise B square minus 25 ​

Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

Answer: (b+5)(b-5)

Step-by-step explanation:

both b^2 and 25 are square numbers, so square root both of them to give b and 5, then put into brackets with a + and -

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What is the circumference of a circle with a diameter of 10 feet? Use 3.14 for
viva [34]

Answer:

choice A) circumference = 31.4 ft

Step-by-step explanation:

circumference = 3.14(10)

circumference = 31.4 ft

8 0
3 years ago
Read 2 more answers
Solve for z -0.25z= -1.25
GarryVolchara [31]

Answer:

<h2>z = 5</h2>

Step-by-step explanation:

-0.25z= -1.25

Convert the decimals to improper fractions

That's

<h3>- 1.25 =  -  \frac{5}{4}</h3><h3>- 0.25 =  -  \frac{1}{4}</h3>

So we have

<h3>-  \frac{1}{4} z =  -  \frac{5}{4}</h3>

Multiply through by 4

We have

- z = - 5

Divide both sides by - 1

the final answer is

<h3>z = 5</h3>

Hope this helps you

6 0
3 years ago
Read 2 more answers
Please answer the question in the photo.<br><br> 10 points available.
mestny [16]
No wonder you have posted this. It is not easy. Scale is a straight line measurement. You need to use a side of a square.

Left: 1 side of a square = 1 meter.

Center: 3 tops of a square = 1 meter.
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Right: 1 side of a square = 0.5 meters.
6 0
3 years ago
choose the equation of a line that is perpendicular to the y axis and passes through the point (5,-2)​
kondaur [170]

Answer:

y = -2

Step-by-step explanation:

The line that is perpendicular to y-axis will be a horizontal line so it's slope is 0 => y = 0x + b or y = b

Using (5,-2) => -2 = b => b = -2

then y = -2

3 0
2 years ago
Mr. Sparky puts away $250 from each monthly paycheck into an account that returns 7.89% annual interest compounded monthly for h
valentina_108 [34]
250x20=5000
7.89%of 5000 is 394.5

your welcome and a half :) 
8 0
3 years ago
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