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2 years ago

Given angle YMC = 170 degrees, find the measure of angle AMC.

Mathematics

2 answers:

makkiz [27]2 years ago

5 0

Answer:

i think 10 because in triangle there is 180 and 180-170 = 10

kolbaska11 [484]2 years ago

3 0

Answer:

Step-by-step explanation:

hjhj

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How could I solve y= 2x^2 + 16x - 66 By using quadratic formula?

Slav-nsk [51]

Answer: the solutions are

x = 3 or x = - 11

Step-by-step explanation:

The given quadratic equation is expressed as

y = 2x² + 16x - 66 = 0

The equation is already in the standard form of ax² + bx + c

The general formula for solving quadratic equations is expressed as

x = [- b ± √(b² - 4ac)]/2a

From the equation given,

a = 2

b = 16

c = - 66

Therefore,

x = [- 16 ± √(16² - 4 × 2 × - 66)]/2 × 2

x = [- 16 ± √(256 + 528)]/4

x = [- 16 ± √784]/4

x = (- 16 + 28)/4 or x = (- 16 - 28)/4

x = 12/4 or x = - 44/4

x = 3 or x = - 11

4 0

3 years ago

Read 2 more answers

I need help! ABCD is a rectangle. m<1 = m<6 = m<3 =

katen-ka-za [31]

Answer:

m∠1 = 24°

m∠3 = 66°

m∠6 = 66°

Step-by-step explanation:

They are all near the corners of the rectangle

The corners always equal 90°

But as you can see, they are split down the middle by the X in the rectangle and we have only one angle to go off of; 24°

Since m∠1 is in the same triangle as that angle, and it looks exactly the same, the angle is exactly the same.

m∠3 and m∠6, if you look closely, are also the same. And as I said before, the corners always are 90°. Since 24° is taken from the neighboring triangle, the amount left is 66°, and remember, 24° + x° HAS to equal EXACTLY 90°. So

90 - 24 = 66

So both m∠3 and m∠6 = 66°

8 0

3 years ago

One nanometer is about 0.00000003937 of an inch. what is this number in scientific notation?

sammy [17]

0.00000003937 = 3,937 * 10^-8

8 0

3 years ago

20 points please help! 7(14-x)=3x+18

Illusion [34]

98-7x=3x+18. -7x-3x=-98+18. -10x=-70. X=7.

6 0

4 years ago

A company decided to test the hypothesis that the average time a company’s employees are spending to check their private e-mails

Degger [83]

Answer:

$z=\frac{6.6-6}{\frac{1.7}{\sqrt{40}}}=2.232$

Since is a one sided right tailed test the p value would be:

$p_v =P(z>2.232)=0.0128$

Step-by-step explanation:

Data given and notation

$\bar X=6.6$ represent the sample mean

$\sigma=1.7$ represent the population standard deviation

$n=40$ sample size

$\mu_o =6$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the true mean is higher than 6minutes or no, the system of hypothesis would be:

Null hypothesis: $\mu \leq 6$

Alternative hypothesis: $\mu > 6$

If we analyze the size for the sample is > 30 and we know the population deviation so is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

Calculate the statistic

We can replace in formula (1) the info given like this:

$z=\frac{6.6-6}{\frac{1.7}{\sqrt{40}}}=2.232$

P-value

Since is a one sided right tailed test the p value would be:

$p_v =P(z>2.232)=0.0128$

5 0

3 years ago