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777dan777 [17]
3 years ago
8

Find all the real square roots of –(9/16)

Mathematics
2 answers:
beks73 [17]3 years ago
7 0
We are asked t determine the real square root of -(9/16). the square root of a negative number is an imaginary number hence the answer to this problem is A. no real root. If this number is a positive number, then the answer would have been +-3/4
Rom4ik [11]3 years ago
3 0

Answer:

Option A. no real root.

Step-by-step explanation:

We have to find the real square roots of (-\frac{9}{16}).

We can write the term as \sqrt{-\frac{9}{16}}=\sqrt{\frac{9.(-1)}{16}}

=\pm \frac{3}{4}i [ As we know √(-1) = i ]

Since it's an imaginary number therefore we can say square root of any negative number is an imaginary number.

Therefore Option A. no real roots is the correct option.

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1. Solve for the variable in the following proportion.
Ugo [173]

Answer:

1. 3

3. 10

Step-by-step explanation:

1. Write a proportion by writing each ratio as a fraction and setting the fractions equal. A proportion is an equation where two ratios are equal to each other. Then cross multiply denominator and numerator of each fraction to solve.

\frac{n}{.5} = \frac{6}{1}\\  1*n = 0.5*6\\n = 3

2. Repeat same process as #1.

3. The ratio of girls to boys is 3:2. There are 15 girls. write a proportion to solve using b as the number of boys.

\frac{3}{2} = \frac{15}{b}\\  3*b = 2*15\\3b = 30 \\ b = 10

There are 10 boys.

7 0
3 years ago
Read 2 more answers
Which are solutions of the equation 4x2 – 7x = 3x + 24? Check all that apply.
Andreyy89

Answer:

x = -3/2, x = 4

Step-by-step explanation:

4x² - 7x = 3x + 24, first put everything on one side

4x² - 10x - 24 = 0, factor 2 out

2(2x² - 5x - 12) = 0 then factor. You need two numbers that multiply to be -24 and add to be -5, so -8 and 3 are the factors.

(2x² - 8x) + (3x - 12) group them either way and then factor out GCF

2x(x - 4) + 3(x - 4) = 0

(2x + 3)(x - 4) = 0, set each factor = 0 and solve

2x + 3 = 0, 2x = -3, x = -3/2

x - 4 = 0, x = 4

3 0
3 years ago
HELP FAST!!!!
makvit [3.9K]
Adult: sweet snacks 39.3 percent salty snack 60.7 percent
children : sweet snacks 71.3 percent salty snacks 28.7 percent
8 0
3 years ago
Can someone help me please.​
Daniel [21]

Answer:

<h2>652 ft²</h2>

Step-by-step explanation:

Look at the picture.

It's a net of right rectangular prism.

We have three pairs of rectangles:

7ft × 8ft

7ft × 18ft

8ft × 18ft

The formula of an area of a rectangle l × w:

A = lw

Calculate the areas:

A₁ = (7)(8) = 56 ft²

A₂ = (7)(18) = 126 ft²

A₃ = (8)(18) = 144 ft²

The Surface Area :

S.A. = 2A₁ + 2A₂ + 2A₃

Substitute:

S.A. = 2(56) + 2(126) + 2(144) = 652 ft²

6 0
3 years ago
The actual distance between A and B is 960 metres.
Afina-wow [57]

Answer:

Step-by-step explanation:

a. 960 / 4 = 240 for 1 grid

1/2 cm = 24000

1 : 48000

b. A to C

AC² = 3² + 6²

AC² = 9 + 36

AC²= 432 + 1728

AC² = 2160

AC = √2160 km

7 0
2 years ago
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