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3 years ago

The segments shown below could form a triangle. 15 A O A. True B. False

Mathematics

2 answers:

netineya [11]3 years ago

7 0

Answer:

false

Step-by-step explanation:

Because every segment must be minor than the sum of the other two

Morgarella [4.7K]3 years ago

5 0

Answer:

False

Step-by-step explanation:

9 + 4 must be > 15

9+4 is < than 15

False

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The table gives the highest and lowest recorded temperatures for six cities. Which cities recorded a difference between their hi

S_A_V [24]

Answer:

A and E

Step-by-step explanation:

Death Valley and Alaska

73+42=115

134+15=149

5 0

4 years ago

Read 2 more answers

Sam is thinking of retiring from his job after many years of faithful service. during the last 35 years at his job, his annual s

Lelechka [254]

Using proportions, the amount of money that Sam would need each month to pay his bills is of:

b. at least $425.32.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, his annual social security benefit is of 42% of $37,991, hence:

A = 0.42 x 37991 = $15,956.22.

Hence the monthly amount is given by:

M = 15956.22/12 = $1,329.68

He needs $1,755 monthly, hence the amount he needs is of at least:

An = 1755 - 1329.68 = $425.32.

Which means that option b is correct.

More can be learned about proportions at brainly.com/question/24372153

#SPJ4

5 0

2 years ago

7/8 & -8/7 are these line slope perpendicular or parallel or neither

muminat

Answer:

Perpendicular!

Step-by-step explanation:

If they were parallel they would have the exact same slope. If they are perpendicular their slopes would be opposite reciprocals of each other... which they are. Another trick to tell if two slopes are perpendicular is to multiply them by each other and if the answer equals -1 they are perpendicular:

7/8 • -8/7 = -1/1 = -1

7 0

3 years ago

If(a-b) =4 and ab=2,find the value of a^2+b^2

AURORKA [14]

Answer:

a² + b² = 20

Step-by-step explanation:

Given

(a - b) = 4 ← square both sides

(a - b)² = 4²

a² - 2ab + b² = 16 ← substitute ab = 2

a² - 2(2) + b² = 16

a² - 4 + b² = 16 ( add 4 to both sides )

a² + b² = 20

6 0

3 years ago

2x+3x^2(4x-5)<br> please helpppp asap

Aliun [14]

Here's my step-by-step explanation:

We're just gonna factor.

If your teacher has spoken of FOIL, then he/she has probably said that it means First Outer Inner Last and that it helps with distributing problems like these.

Right, so let's get to it.

$2x+3x^2 (4x-5)\\2x(4x-5)+3x^2(4x-5)\\2x(4x) + 2x(-5) + 3x^2(4x) + 3x^2(-5)$

Can you see the FOIL method being spread out here? Let's keep going.

$2x(4x) + 2x(-5) + 3x^2(4x) + 3x^2(-5)\\8x^2 + (-10x) + 12x^3 + (-15x^2)\\12x^3 + 8x^2 - 15x^2 -10x\\12x^3 -7x^2 -10x$

Hope this helps, and let me know if I made a mistake! ^_^

7 0

3 years ago