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il63 [147K]
3 years ago
9

Pls pls help me I will mark you brainest

Mathematics
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

55

Step-by-step explanation:

7 x 10 = 70

4 x 10 = 40

70 + 40 = 110

110 / 2 = 55

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In the diagram, points D and E are marked by drawing arcs of equal size centered at B such that the arcs intersect BA−→ and BC−→
tamaranim1 [39]
<span>here are the answer choices
 m∠ABC=32°
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</span>∠ ABC<span> is less than 90</span>° so the 3rd and 4th option is out.

The most likely answer is 64°. m∠ABC = 64°

32° x 2 = 64°


7 0
3 years ago
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!!HELP: 20 POINTS!!At the end of a snow storm, Jace saw there was a lot of snow on his front lawn. The temperature increased and
Anna35 [415]

Answer:

the y-intercept is 15 which is the initial total depth of the snow at t=0 hours.

The rate of melting is 1.5inches per hour.  It will take 10 hours at the melting rate given of 1.5 to melt all the snow.

Step-by-step explanation:

the y-intercept is 15, and it might mean that the total depth of the snow is 15 inches.

The rate of melting is 1.5inches per hour.

At time = 0, S=15 - 1.5t = 15 - 1.5(0) = 15 inches to start

At time = 10, S=15 - 1.5t = 15 - 1.5(10) = 0 inches; meaning all snow has melted and it took 10 hours.

7 0
2 years ago
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Elodia [21]

We want to evaluate

\displaystyle \int_{-\frac1{\sqrt2}}^{\frac1{\sqrt2}} \sqrt{\left(\frac{x-1}{x+1}\right)^2 + \left(\frac{x+1}{x-1}\right)^2 - 2} \, dx

First we note that the integrand is even (replacing x with -x doesn't fundamentally alter the function being integrated), so this is equal to

\displaystyle 2 \int_0^{\frac1{\sqrt2}} \sqrt{\left(\frac{x-1}{x+1}\right)^2 + \left(\frac{x+1}{x-1}\right)^2 - 2} \, dx

The radicand reduces significantly to

\displaystyle \left(\frac{x-1}{x+1}\right)^2 + \left(\frac{x+1}{x-1}\right)^2 - 2 = \frac{16x^2}{(1-x^2)^2}

so that taking the square root, we simplify the integral to

\displaystyle 8 \int_0^{\frac1{\sqrt2}} \frac x{1-x^2} \, dx

which is trivially computed with a substitution of y = 1 - x^2 and dy=-2x\,dx:

\displaystyle -4 \int_1^{\frac12} \frac{dy}y = 4 \int_{\frac12}^1 \frac{dy}y = -4 \ln\left(\frac12\right) = \ln(2^4) = \boxed{\ln(16)}

7 0
2 years ago
Please help im super behind :((( pls include an explanation if u can
STALIN [3.7K]

Answer:

(0,-1) and (-1,0)

Step-by-step explanation:

Because the line will touch the graph twice. If the line touches the graph more than once it's not a function

8 0
3 years ago
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Anestetic [448]

Answer:

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