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11Alexandr11 [23.1K]
2 years ago
14

What fraction multiplied by 5 gives you .75

Mathematics
1 answer:
netineya [11]2 years ago
5 0
I believe the answer is 3/2
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Which of the following is the best estimate of the square root of 90
guapka [62]

Answer:

9.5

Step-by-step explanation:

9.5x9.5= 90.25 which is the closest you can get without going into further decimals

5 0
2 years ago
Which of the following equations has no real solutions?
kupik [55]
B. 5x - 8 = 40x - 8 has no solution because on the right side we will get 0
6 0
3 years ago
Given segments AB and CD intersect at E.
nata0808 [166]

The length of a segment is the distance between its endpoints.

  • \mathbf{AB = 3\sqrt{2}}
  • AB and CD are not congruent
  • AB does not bisect CD
  • CD does not bisect AB

<u>(a) Length of AB</u>

We have:

\mathbf{A = (1,2)}

\mathbf{B = (4,5)}

The length of AB is calculated using the following distance formula

\mathbf{AB = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}}

So, we have:

\mathbf{AB = \sqrt{(1 - 4)^2 + (2 - 5)^2}}

\mathbf{AB = \sqrt{18}}

Simplify

\mathbf{AB = 3\sqrt{2}}

<u>(b) Are AB and CD congruent</u>

First, we calculate the length of CD using:

\mathbf{CD = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}}

Where:

\mathbf{C = (2, 4)}

\mathbf{D = (2, 1)}

So, we have:

\mathbf{CD = \sqrt{(2 -2)^2 + (4 - 1)^2}}

\mathbf{CD = \sqrt{9}}

\mathbf{CD = 3}

By comparison

\mathbf{CD \ne AB}

Hence, AB and CD are not congruent

<u>(c) AB bisects CD or not?</u>

If AB bisects CD, then:

\mathbf{AB = \frac 12 \times CD}

The above equation is not true, because:

\mathbf{3\sqrt 2 \ne \frac 12 \times 3}

Hence, AB does not bisect CD

<u>(d) CD bisects AB or not?</u>

If CD bisects AB, then:

\mathbf{CD = \frac 12 \times AB}

The above equation is not true, because:

\mathbf{3 \ne \frac 12 \times 3\sqrt 2}

Hence, CD does not bisect AB

Read more about lengths and bisections at:

brainly.com/question/20837270

7 0
2 years ago
If two similar cones have volumes of 320cm^3 and 1,080cm^3, find the scale factor.
Alexeev081 [22]
The ratio of the volumes is equal to the scale factor cubed.

\frac{V_1}{V_2}=k^3 \\ \\&#10;\frac{320 \ cm^3}{1080 \ cm^3}=k^3 \\&#10;\frac{8}{27}=k^3 \\&#10;k=\sqrt[3]{\frac{8}{27}} \\&#10;\boxed{k=\frac{2}{3}} \Leftarrow \hbox{answer B}
3 0
3 years ago
Each side of a square is increasing at a rate of 3 cm/s. At what rate is the area of the square increasing when the area of the
abruzzese [7]
The area of the square is increasing at the rate of 36(3/2)^(1/2).btw,i forget to add ^2 to `cm`

3 0
3 years ago
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