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2 years ago

Urgent!!!!!!!!! Find m

Mathematics

1 answer:

Sphinxa [80]2 years ago

8 0

C would be 49 degrees bc a triangles angles have a sum of 180 so 72+59+X= 180

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[[ PLEASE ANSWER ASAP (: ]]

Nady [450]

Angle A = 100 , Angle C = 100 , Angle D =80

6 0

2 years ago

What scale factor was applied to the first rectangle to get the resulting image?

madam [21]

Answer:

The scale factor for the resultant rectangle is $\frac{2}{5}$ units.

Step-by-step explanation:

Given two rectangles with sides 3 units and 7.5 units.

We have to find the scaling factors so that we can obtain bigger rectangle of 7.5 units from smaller rectangle of 3 units.

Scale factor is defined as the ratio of corresponding side of given figure to the corresponding side of resulting figure.

That is $\text{Scale factor}=\frac{\text{length of side of given figure}}{\text{length of side of resulting figure}}$

Here, $\text{Scale factor}=\frac{\text{length of side of given rectangle }}{\text{length of side of resulting rectangle}}$

$\text{Scale factor}=\frac{3}{7.5}=\frac{2}{5}$

Hence, the scale factor for the resultant rectangle is $\frac{2}{5}$ units.

4 0

2 years ago

X+y=13 and 1/2x+y=10

photoshop1234 [79]

X=6
y=7

6+7
= 13

1/2(6) + 7
= 3 +7
=10

6 0

3 years ago

Madelyn states that the value of the expression (-2/3)x ^2 + x + 7 3/4 is sometimes negative. Which of the following values of x

ipn [44]

Answer:

Using the quadratic formula to solve 11x2 - 4x = 1, what are the values of x?Step-by-step explanation:

6 0

2 years ago

An electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricit

TiliK225 [7]

Answer:

atleast 385

Step-by-step explanation:

Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.

Population std deviation = $\sigma = 50$

Sample size = $n$

STd error of sample mean = $\frac{50}{\sqrt{n} }$

Margin of error for 95% would be Critical value ( std error)

Here since population std dev is known we can use Z critical value= 1.96

$1.96*\frac{50}{\sqrt{n} }19.6^2\\n>384.16$

Sample size should be atleast 385

5 0

3 years ago