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3 years ago

What value is equivalent to -2 x 3² - 8 ÷ 2 + 6?

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

3 0

Answer:

−18x+2

Step-by-step explanation:

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What is the probability of spinning a yellow?

alekssr [168]

Answer:

1/8

Step-by-step explanation:

one yellow will be selected from 8 others is the probability

7 0

2 years ago

Can you explain it and help me out please

shusha [124]

Answer:

D. two real solutions

Step-by-step explanation:

p²+5 = 6p

p² - 6p +5 =0

D = b² - 4ac = (-6)² - 4*(1)*5 = 36 - 20 = 16

D > 0, so this equation has 2 real solutions

4 0

3 years ago

Find the length of side AB Give answer to 3 significant figures

Rina8888 [55]

Answer:

AB = 8.857 cm

Step-by-step explanation:

Here, we are given a right angle $\triangle ABC$ in which we have the following things:

$\angle A = 90 ^\circ\\\angle C = 41 ^\circ\\\text{Side }BC = 13.5 cm$

Side BC is the hypotenuse here.

We have to find the side AB.

Trigonometric functions can be helpful to find the value of Side AB here.

Calculating $\angle B$ :

Sum of all the angles in $\triangle ABC$ is $180^\circ$ .

$\Rightarrow \angle A + \angle B + \angle C = 180^\circ\\\Rightarrow 90^\circ + \angle B + 41^\circ = 180^\circ\\\Rightarrow \angle B = 49^\circ$

We know that cosine of an angle is:

$cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}\\\Rightarrow cos B = \dfrac{AB}{BC}\\\Rightarrow cos 49^\circ = \dfrac{AB}{13.5}\\\Rightarrow AB = 13.5 \times 0.656\\\Rightarrow AB = 8.857 cm$

So, side AB = 8.857 cm .

6 0

2 years ago

X=8 find ∛x=??????????????????

marissa [1.9K]

The cube root of 8 is 2. 2*2*2=8

8 0

3 years ago

The slope of any line perpendicular to AB , where A(0, -3) and B(4, 9) are two points on the line, is m =

rjkz [21]

Are you missing an option? The answer should be -2/3 (I just calculated it numerous times)

5 0

3 years ago