3 years ago

What is the angle of d

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

8 0

Answer:

115°

Step-by-step explanation:

65 +65 = 130

360-130= 230

230÷2= 115

You might be interested in

Find the area of a regular octagon with side length 4 cm.

Degger [83]

A = side^2 * (2 + 2sqrt2))
A = 4^2 * (2 + 2sqrt2))
A = 77.25 cm^2

4 0

3 years ago

What is the discriminant of the quadratic equation 0 = –x2 4x – 2? a.–4 b.8 c.12 d.24

MrMuchimi

X^2 - 4x + 2
d = b^2 - 4ac, where a = 1, b = -4 and c = 2
d = (-4)^2 - 4 x 1 x 2
d = 16 - 8
d = 8

4 0

3 years ago

UCF is a major Metropolitan University located in Orlando Florida. UCF is advertising their bachelor in Economics with the stati

Arlecino [84]

Answer:

The claim is rejected

Step-by-step explanation:

Claim: UCF is advertising their bachelor in Economics with the statistic that the starting salary of a graduate with a bachelor in economics is $ 48,500 according to Payscale (2013-13).

Null hypothesis: $H_0: \mu = 48500$

Alternate hypothesis : $H_a : \mu \neq 48500$

n = 50

Since n is more than 30 .

So we will use Z test

x=43350

Standard deviation = 15000

$Z=\frac{x-\mu}{\frac{s}{\sqrt{n}}}\\Z=\frac{43350-48500}{\frac{15000}{\sqrt{50}}}\\Z=-2.42$

Refer the z table

p value = 0.00776

$\alpha = 0.01$

p value < $\alpha$

So, We are failed to accept null hypothesis

Hence The claim is rejected

5 0

3 years ago

How do you solve this? 18 " n=21

dalvyx [7]

$18 ^{n} =21$

$log(18) ^{n}=log(21)$

$n*log(18)=log(21)$

$n= \frac{log(21)}{log(18)}$

$n=1.053$

6 0

3 years ago

Which shows how to solve the equation 3 over 4 x= -6 for x in one step?

masya89 [10]

Answer:

-8

Step-by-step explanation:

multiply for on both sides then divide by 3

I think its B because

your multiply 4 on both sides

and then you divide by 3

8 0

3 years ago

Read 2 more answers

What is the angle of d​

What is the angle of d