3 years ago

Please help this is due today!

Mathematics

1 answer:

vfiekz [6]3 years ago

5 0

Answer:

perdita is correct

Step-by-step explanation:

perdita is correct because A isoceles triangle has two of the same. The triangle will just be very very thin

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The intensity, or loudness, of a sound can be measured in decibels (dB), according to the equation (ob) – 101001 6.)

notsponge [240]

Answer:

Step-by-step explanation:

i had a test with the same question, i promise its right :)

4 0

3 years ago

For a sample of n = 30 scores, X = 45 corresponds to z = 1.50 and X = 40 corresponds to z = +1.00. What are the values for the s

Ber [7]

Answer:

Sample mean = 30

Standard deviation = 10

Step-by-step explanation:

A system with two linear equations can be modeled with the information given in order to find the sample mean (M) and the standard deviation (s):

$z=\frac{X-M}{s}\\\\1.50=\frac{45-M}{s} \\1.00=\frac{40-M}{s}$

Solving the linear system:

$40-M = \frac{45-M}{1.5}\\M=\frac{15}{0.5}\\M=30\\\\s=\frac{45-30}{1.5}\\s=10$

The sample mean is 30 while the standard deviation is 10.

3 0

4 years ago

Convert 165/200 to a decimal setting 1000 as your denominator

Damm [24]

165/200= 0.825 This is in the 1000th place

4 0

3 years ago

A circle has an area of 50 square meters. Which answer is closest to the measure of its diameter?

gregori [183]

Area of a circle is computed by multiplying pi to the square of the circle's radius.

A = πr²
50m² = 3.14 r²
50m²/3.14 = r²
r² = 15.92m²
r = √15.92m²
r = 3.99m

Diameter is computed by multiplying the radius twice.
d = 2r
d = 2(3.99m)
d = 7.98m or rounded up to 8 m

8 0

3 years ago

Please help me with this problem

sergey [27]

Answer:

x=3

Step-by-step explanation:

Because DE // AC

so DB/BE = DA/EC

x+5/4=2x/3

4(2x)=3(x+5)

8x=3x+15

5x=15

x=3

6 0

4 years ago