2 years ago

Geometry Find a: Fill in the blank

Mathematics

1 answer:

Nataly_w [17]2 years ago

3 0

Answer:

a=15

Step-by-step explanation:

$a^{2} =9*25\\a^{2} =225\\\\\sqrt{a} =\sqrt{222\\a=15$

Hope it helps

You might be interested in

The ratio two numbers is 3 and 5 their sum is 135find two number

n200080 [17]

Let, the numbers = x,y

x/y = 3/5

total ratio units = 3+5 = 8

value of 1 unit = 135/8 = 16.875

So, numbers would be 3(16.875) & 5(16.875) = 50.625 & 84.375

so, your answer is 50.625 & 84.375

5 0

3 years ago

A salad dressing recipe requires at least 8 oz of oil to be combined with some combination of vinegar and lemon juice in a 16 oz

valentina_108 [34]

Let x represent the number of ounces of vinegar

Let y represent the number of ounces of lemon juice

Oil required = 8 oz

Container can hold = 16 oz

So the inequality equation will be :

$x+y+8\geq16$

6 0

3 years ago

Using FOIL method. Multiply the terms. (X^2 -7)(x^2 -4)

murzikaleks [220]

Answer:

x^4-11x^2+28

Step-by-step explanation:

Set it up

x^2(x^2-4) -7(x^2-4)

2. Multiply

x^4-4x^2-7x^2+28

3. Simplify

x^4-11x^2+28

4 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

olasank [31]

Answer: $a_n=2(5)^{n-2}$

<u>Step-by-step explanation:</u>

The explicit rule for a geometric sequence is: $a_n=a_1(r)^{n-1}\quad \text{where}\ a_1\ \text{is the first term and r is the ratio}$

The information provided is: a₁ = $\dfrac{2}{5}$ and r = 5

$a_n=\dfrac{2}{5}(5)^{n - 1}\\\\.\quad = 2(5)^{n-2}$

4 0

2 years ago

How many solutions exist for the given equation?

katrin2010 [14]

$1(x + 12) = 4x - 1\\x+12=4x-1\\13=3x\\x=\frac{13}{3} \\x=4\frac{1}{3}$

This equation has only one solution

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

P.S. Hello from Russia

7 0

2 years ago

Read 2 more answers