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2 years ago

Solve for x for this triangle (geometry)

Mathematics

1 answer:

Olegator [25]2 years ago

3 0

Answer:

$x=60^{\circ}$

Step-by-step explanation:

The are 180 degrees in a triangle and 180 degrees on a line. Therefore, call the third angle of the triangle $y$ .

The following equation solves for $y$ :

$y+119=180,\\y=61^{\circ}$

Solving for $x$ :

$x+59+61=180,\\x=\boxed{60^{\circ}}$

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Slope = -2/5 y-intercept= 0

densk [106]

Answer:

y=(-2/5)x

Step-by-step explanation:

Assuming that the goal is to find the linear equation in slope-intercept form, this problem is pretty simple.

Slope intercept form is y=mx+b, where m is the slope and b is the y-intercept. We just have to plug in the information

y=(-2/5)x+0

Simplifies to:

y=(-2/5)x

3 0

3 years ago

Read 2 more answers

A baseball cap costs $8. A matching shirt costs 4 times as much as the cap. Which of the following can be used to determine the

Mashcka [7]

Answer: 8 x 4

Step-by-step explanation:

if the hat is 4 TIMES the baseball cap then u should multiply. anytime “times” is in a sentence like that it’s an automatic flag/reminder that multiplication is needed

6 0

2 years ago

Read 2 more answers

The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a population sta

vekshin1

Answer:

Yes, there is sufficient evidence to support the claim that the mean cost is $1.

Step-by-step explanation:

Data Given:

The population standard deviation $\sigma$ = $0.2

The sample mean cost $\bar {X}$ = $0.93

The sample size n = 12

From above we can use the Z-test for testing the mean from the above given data.

To check whether the mean cost of newspaper is $1.00

$\mathbf{H_o}$ : $\mu$ = $1

$\mathbf{H_1}$ : $\mu$ $\neq$ $1

The test statistics Z = $\frac{\bar {X}- \mu}{\frac{\sigma }{\sqrt{n}} }$

Z = $\frac{0.93- 1}{\frac{0.2}{\sqrt{12}} }$

Z = -1.212

The P-value = 2P (Z< - 1.212)

= 2 × 0.1128

= 0.2256

Since the value of P is more than the significance level; do not reject the $\mathbf{H_o}$

Conclusion: We therefore conclude that there is sufficient evidence to support the claim that the mean cost is $1.

8 0

3 years ago

I'm in 8th grade, my worst class is math, we are working on the Pythagorean theorem, we have a test in two days, I can't seem to

luda_lava [24]

It would be a squared X b squared = C squared.

3 0

3 years ago

Ariel is filling a giant beach ball with air. The radius of the beach ball is 30cm. What is the volume of air that the beach bal

lapo4ka [179]

Answer:

V =36000 pi cm^3

Step-by-step explanation:

The volume of a sphere is

V = 4/3 pi r^3

We know the radius is 30

V = 4/3 pi (30)^3

V = 4/3 pi (27000)

V =36000 pi cm^3

7 0

3 years ago