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2 years ago

Her the

Mathematics

1 answer:

Otrada [13]2 years ago

5 0

Answer:

13. m∠MN + m∠NMP = m∠MP.

14. m∠NMP - m∠OMP = m∠NMO.

15. x = 3 + y and -2y + 3 < -1 : Given

16. x > y : x = 3 + y

17. -2y < -4 : -2y < -4

18. y > 2 : y > 2

19. x > 2 : x = 3 + y and y > 2

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To divide 1.89 ÷ 0.9, we need to change it. Choose the correct problem below to show what the “new” look would be.

Arlecino [84]

Answer:

D. 18.9 ÷ 9

Step-by-step explanation:

we need to divide

1.89 ÷ 0.9 but write it in different form

so ,we need to eliminate decimal from 0.9

as 0.9*10 = 9

thus,we multiply both 1.89 and 0.9 with 10, then we will have

(1.89*10) ÷ (0.9*10)

=> 18.9 ÷ 9

Thus, based on above calculation new look would be D. 18.9 ÷ 9

8 0

3 years ago

Please help me with this question.

Evgen [1.6K]

Answer:

$\purple{ \boxed{\frac{d^{2} y}{dx ^{2} } = \frac{132}{ {x}^{13} } }}$

Step-by-step explanation:

$y = \frac{1}{ {x}^{11} } \\ y = {x}^{ - 11} \\ \frac{dy}{dx} = \frac{d}{dx} {x}^{ - 11} \\ \frac{dy}{dx} = - 11{x}^{ - 11 - 1} \\ \frac{dy}{dx} = - 11{x}^{ - 12} \\ \\ \frac{d}{dx} \bigg(\frac{dy}{dx} \bigg) = \frac{d}{dx} ( - 11 {x}^{ - 12} ) \\ \\ \frac{d^{2} y}{dx ^{2} } = - 11\frac{d}{dx} ( {x}^{ - 12} ) \\ \\ \frac{d^{2} y}{dx ^{2} } = - 11( - 12{x}^{ - 13} ) \\ \\ \frac{d^{2} y}{dx ^{2} } = 132{x}^{ - 13} \\ \\ \huge \red{ \boxed{\frac{d^{2} y}{dx ^{2} } = \frac{132}{ {x}^{13} } }}$

8 0

2 years ago

If Bob mowed 14x² + 12x – 3 yards total for the entire week, how many yards

navik [9.2K]

Answer:

I am going with zero yards.

Step-by-step explanation:

If Bob mowed 14x² + 12x – 3 yards total for the entire week, how many yards

did he mow during the rest of the week?

If he mowed 14x² + 12x – 3 yards for the entire 7 days of the week. He would not have anymore days to left in the week to mow, so he mowed ZERO more yards

8 0

2 years ago

Order from least to greatest 4.3, 3.4, 4.5, 3.45

kozerog [31]

Answer:

3.4, 3.45, 4.3, 4.5

Step-by-step explanation:

6 0

2 years ago

Would be much appreciated for some help on these:)

Katen [24]

Question 1: The indicated angle is 30°

Question 2: The indicated angle is 44°

Question 3: The indicated angle is 39°

Question 4: The indicated angle is 18°

Question 5: The indicated angle is 37°

Question 6: The indicated angle is 17°

Step-by-step explanation:

As all the triangles are right-angled triangle, trigonometric ratios can be used to find the indicated angles.

Let x be the angle

Question 1:

The according to the angle

P = 22

B = 38

Tangent ratio uses both base and perpendicular so,

$tan\ x=\frac{P}{B}\\tan\ x= \frac{22}{38}\\tan\ x=0.5789\\x=tan^{-1} (0.5789}\\x = 30.06\\x=30$

The indicated angle is 30°

Question 2:

According to the angle,

P = 28

B = 29

Again we will use tangent

$tan\ x =\frac{P}{B}\\tan\ x=\frac{28}{29}\\tan\ x=0.9655\\x=tan^{-1}(0.9655)\\x=43.99\\x=44$

The indicated angle is 44°

Question 3:

According to angle,

P = 22

H = 35

$sin\ x=\frac{P}{H}\\sin\ x =\frac{22}{35}\\sin\ x=0.6286\\x=sin^{-1}(0.6286}\\x=38.94\\Rounding\ off\ to\ nearest\ degree\\x=39$

The indicated angle is 39°

Question 4:

According to angle,

B = 3

H = 9

We will use cos

$cos\ x =\frac{B}{H}\\cos\ x=\frac{3}{9}\\cos\ x=0.3333\\x=cos^{-1}(0.3333)\\x=18.43\\Rounding\ off\ to\ nearest\ degree\\x=18$

The indicated angle is 18°

Question 5:

According to indicated angle,

B =35

H =46

$cos\ x =\frac{B}{H}\\cos\ x=\frac{35}{46}\\cos\ x=0.7609\\x=cos^{-1}(0.7609)\\x=37.2\\Rounding\ off\ to\ nearest\ degree\\x=37$

The indicated angle is 37°

Question 6:

According to angle,

P = 15

H = 49

$sin\ x=\frac{P}{H}\\sin\ x =\frac{15}{49}\\sin\ x=0.3061\\x=sin^{-1}(0.3061}\\x=17.02\\Rounding\ off\ to\ nearest\ degree\\x=17$

The indicated angle is 17°

Keywords: Trigonometric Ratios, Right angled triangle

Learn more about right angled triangle at:

#LearnwithBrainly

3 0

3 years ago