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3 years ago

Which inequality is true for x = 3?

1 answer:

3 0

Hello!

You can put 3 in for x and see which on is true
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Inequality A

6(3) + 18 < 30

Multiply

18 + 18 < 30

Add

36 < 30

This is not true so this is not the answer
------------------------------------------------------------------------------------------------------
Inequality B

8(3) - 4 < 10

Multiply

24 - 4 < 10

Subtract

20 < 10

This is not true so this is not the answer
------------------------------------------------------------------------------------------------------
Inequality C

10(3) + 10 < 37

Multiply

30 + 10 < 37

Add

40 < 37

This is not true so this is not the answer
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Inequality D

15(3) - 10 < 40

Multiply

45 - 10 < 40

Subtract

35 < 40

This is true so this is the answer
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The answer is D) 15x - 10 < 40

Hope this helps!

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please help as soon as possible-Solve the right triangle shown in the figure. WIll mark brainliest to first correct answer

Dennis_Churaev [7]

Answer:

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

Step-by-step explanation:

From my understanding, we have to find angle A, angle B and side AB.

Step 1: Find side AB

AB can be solved through the Pythagoras theorem.

c² = a² + b²

c² = 2.7² + 1.1²

c² = 8.5

c = √8.5

c = 2.9 cm

Step 2: Find angle A

Angle A can be found through tan formula

tan (angle) = opposite/adjacent

tan (angle A) = BC/AC

tan (angle A) = 2.7/1.1

Angle A = tan inverse (2.7/1.1)

Angle A = 68°

Step 3: Find angle B

All 3 angles of a triangle are equal to 180°

Angle A + Angle B + Angle C = 180°

68 + B + 90 = 180°

Angle B = 22°

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

6 0

3 years ago

Miguel recently sold some farmland and bought a new plot that consists of 968 acres. Miguel calculates that this is 20% less acr

Delicious77 [7]

Answer:

1210 acres

Step-by-step explanation:

Given data

let the old farmland be x acres

new farmland = 968 acres

therefore

let us find 20% of the old farmland

=20/100x

=0.2x

Hence

968+0.2x=x

collect like terms

968=x-0.2x

968=0.8x

x= 968/0.8

x=1210 acres

6 0

3 years ago

Marissa and Callie both have babysitting jobs. Marissa charges $19 plus $1.50 per hour. Callie charges $15 plus $2.75 per hour.

aliya0001 [1]

Answer:

4 hours

Step-by-step explanation:

Write an equation

19 +1.5x < 15+2.75x

Subtarct 15 on both sides

4+1.5x<2.75x

subtract 1.5x on both sides

4< 1.25x

Divide 1.25 on each side

3.2<X

Since they on,y charge per hour so 4 hours

3 0

3 years ago

Read 2 more answers

Please help on 7 to be marked the brainliest

sweet [91]

Answer:

D) 3.57%

Step-by-step explanation:

The percentage change is given by ...

percent change = ((new value) -(old value))/(old value) × 100%

= (3.19 -3.08)/3.08 × 100% = 0.11/3.08 × 100% = (11/3.08)% ≈ 3.57%

When dealing with percentages, you need to be clear about what number represents 100%, the reference value against which errors or changes are measured. Here, it is the π of the mug, 3.08.

7 0

3 years ago

The number 12,089 is?

Ratling [72]

12,089 is less than 12,098
The first choice is the correct one.

8 0

3 years ago