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3 years ago

A point in quadrant IV is reflected across the x-axis. The new point is located in Quadrant..?

2 answers:

8 0

A point in quadrant IV is reflected across the x-axis. The new point is located in Quadrant..?
A) I
B) II
C) III
D) IV

It’s C) III

suter [353]3 years ago

4 0

Answer

It's D) IV

Step-by-step explanation:

Just look at a graph.

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Jehle buys and sells vintage clothing. She bought two blouses for $25 each and sold them for $38 each. She bought three skirts f

Andru [333]

Total revenue earned by Jehle is $234

Step-by-step explanation:

Step 1:

Calculate profit earned by Jehle by selling the 2 blouses.

⇒ Cost price of 2 blouses = 2 × 25 = $50

⇒ Selling price of 2 blouses = 2 × 38 = $76

⇒ Profit earned = SP - CP = 76 - 50 = $26

Step 2:

Calculate profit earned by Jehle by selling the 3 skirts.

⇒ Cost price of 3 skirts = 3 × 15 = $45

⇒ Selling price of 3 skirts = 3 × 26 = $78

⇒ Profit earned = SP - CP = $33

Step 3:

Calculate the profit earned by Jehle by selling 5 pants.

⇒ Cost price of 5 pairs of pants = 5 × 30 = $150

⇒ Selling price of 5 pairs of pants = 5 × 65 = $325

⇒ Profit earned = SP - CP = $175

Step 4:

Calculate the total revenue earned by summing up all the profits

⇒ 26 + 33 + 175 = $234

6 0

3 years ago

3 A red car travels 400 m in 20 s. A blue car travels 660 m in 30 s.

lesantik [10]

Answer:

Blue

Step-by-step explanation:

Red:

400m/20s = 20 m/s

Blue:

660 m/30s =22 m/s

The blue car is faster

4 0

3 years ago

What is the image of the point (4,5) after a rotation of 90° counterclockwise about<br> the origin?

inn [45]

Answer:

A counterclockwise rotation of 270º about the origin is equivalent to a clockwise rotation of 90º about the origin. Given a point (4, 5), the x-value, i.e. 4 and the y-value, i.e. 5 are positive, hence the point is in the 1st quadrant of the xy-plane.

Hope it helped u if yes mark me BRAINLIEST... Plz. Plz plz!

Tysm!

7 0

4 years ago

A committee at the College Board has been asked to study the SAT math scores for students in Pennsylvania and Ohio. A sample of

ozzi

Answer:

Step-by-step explanation:

From the given information:

The null hypothesis and the alternative hypothesis can be computed as:

$H_0 :\mu_1 -\mu_2 = 0$ (i.e. there is no difference between the SAT score for students in both locations)

$H_1 :\mu_1 -\mu_2 \geq0$ (i.e. there is a difference between the SAT score for students in both locations)

The test statistics using the students' t-test for the two-samples; we have:

$t = \dfrac{\overline x_1 -\overline x_2}{\sqrt{\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2} } }$

$t = \dfrac{580 -530}{\sqrt{\dfrac{105^2}{45}+\dfrac{114^2}{38} } }$

$t = \dfrac{50}{\sqrt{\dfrac{11025}{45}+\dfrac{12996}{38} } }$

$t = \dfrac{50}{\sqrt{245+342 } }$

$t = \dfrac{50}{\sqrt{587} }$

$t = \dfrac{50}{24.228}$

t = 2.06

degree of freedom = ( $n_1 + n_2$ ) -2

degree of freedom = (45+38) -2

degree of freedom = 81

Using the level of significance of 0.05

Since the test is two-tailed at the degree of freedom 81 and t = 2.06

The p-value = 0.0426

Decision rule: To reject $H_o$ if the p-value is less than the significance level

Conclusion: We reject the $H_o$ , thus, there is no sufficient evidence to conclude that there is a significant difference between the SAT math score for students in Pennsylvania and Ohio.

5 0

3 years ago

Write one way of representing the equation of the given line in point-slope form. Then rewrite the equation in slope-intercept f

KonstantinChe [14]

I don’t know the answer

4 0

3 years ago