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3 years ago

Pls help! Will give brainliest

Mathematics

1 answer:

mariarad [96]3 years ago

5 0

First is -1 and 4, second should be no solution and the third is 2 and 6

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×-2+2×+4+2×-2=180 what does x equal in this equation.

daser333 [38]

Answer:

x = 36

Here's how I got that:

- Group like terms -

x - 2 + 2x + 4 + 2x - 2 = 180

↓

5x - 2 + 4 - 2 = 180

↓

5x = 180

- Divide both sides by 5 -

5x/5 = 180/5

↓

x = 36

~ That's all folks ~

-Siascon

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2 years ago

2.240 F = d + 2.24 What is the answer

ExtremeBDS [4]

Answer:

F= 0.44642857d+1

Step-by-step explanation:

4 0

3 years ago

Find the cos A and tan B to four decimal places. URGENT

Nikolay [14]

cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

Pythagoras theorem

$hypotenuse^{2}$ = $adjacent^{2}$ + $opposite^{2}$

$hypotenuse^{2}$ = $8^{2}$ + $5^{2}$

$hypotenuse^{2}$ = 64 + 25

hypotenuse = $\sqrt{89}$

hypotenuse = 9.4

a) Cos A

Data:

Adjacent = 8

Hypotenuse = 9.4

Formula:

Cos (Angle) = $\frac{adjacent}{hypotenuse}$

Cos A = $\frac{8}{9.4}$

Cos A = 0.8511

A = $cos^{-1}$ (0.8511)

A = 31.7°

b) Tan B

Data:

Opposite = 8

Adjacent = 5

Formula:

Tan (Angle) = $\frac{opposite}{adjacent}$

Tan B = $\frac{8}{5}$

Tan B = 1.6

B = $cos^{-1}$ (1.6)

B = 58°

Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

Learn more about cos at

#LearnwithBrainly

3 0

3 years ago

Solving Exponential and Logarithmic Equations In Exercise, solve for x. 100(1.21)x = 110

SVETLANKA909090 [29]

Answer:X=110/121

Step-by-step explanation:

Multiply 100 by 1.21 then by x

121x=110

Divide both side by 121

X=110/121

X=0.91

8 0

3 years ago

Solve the equation. 5x + 8 - 3x = -10 x = -1 x=1 x=9

aksik [14]

Answer:

solution,

 $5x + 8 - 3x = - 10 \\ or \: 5x - 3x + 8 = -10 \\ or \: 2x + 8 = -10 \\ or \: 2x = -10 - 8 \\ or \: 2x = -18\\ or \: x = \frac{-18}{2 } \\ x = -9$ 

hope this helps..

Good luck on your assignment

7 0

3 years ago

Read 2 more answers