3 years ago

Evaluate 10-3m when m=-5

Mathematics

1 answer:

Alex3 years ago

4 0

25 hope this helps.

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In ∆ABC the angle bisectors drawn from vertices A and B intersect at the point D. Find m∠ADB if

Svetllana [295]

Answer: ∠ABD = $\bold{\frac{1}{2}}$ ∠C

<u>Step-by-step explanation:</u>

$\angle A + \angle B + \angle C = 180^o\\\\\dfrac{1}{2}\angle A+\dfrac{1}{2}\angle B+\angle D=180^o\\\\\\\text{Solve the system by multiplying the second equation by -2}\\\angle A + \angle B + \angle C = 180^o\\\underline{-\angle A - \angle B - 2\angle D = -180^o}\\.\qquad \qquad \quad \angle C-2\angle D=0\\.\qquad \qquad \qquad \qquad \angle C=2\angle D\\.\qquad \qquad \qquad \quad \dfrac{1}{2}\angle C=\quad \angle D\\$

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3 years ago

The function h represents the height of the bridge, in feet, and x represents the distance along the base of the model from the

Tanya [424]

H(x)=-0.5(x-4)^2+2

h(x)=0→-0.5(x-4)^2+2=0
Solving for x:
-0.5(x-4)^2+2-2=0-2
-0.5(x-4)^2=-2
-0.5(x-4)^2/(-0.5)=-2/(-0.5)
(x-4)^2=4
sqrt [(x-4)^2]=+-sqrt(4)
x-4=+-2
x-4+4=+-2+4
x=4+-2
x1=4-2→x1=2
x2=4+2→x2=6

Answer: Second option. The brigde touches the base of the model at 2 feet and 6 feet from the leftmost edge of the model

5 0

4 years ago

22.94 timers 10 to the second power equals this is real hard I will let you have 15 points!!!

marta [7]

10 to the second power is 100.
22.94 times 100 = 2294
The answer is 2294

Hope I helped :)

6 0

4 years ago

5.39 × 0.37 ? <br> What is the answer ?

grin007 [14]

The answer is 1.9943

8 0

3 years ago