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vredina [299]
2 years ago
14

How do you solve 4.0×0.7

Mathematics
1 answer:
Blababa [14]2 years ago
8 0
Its 2.8, just multiply?<span />
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What is the area of the figure?<br><br> A. 126 in2<br> B. 240 in2<br> C. 282 in2<br> D. 360 in2
sweet [91]
Divide the figure into 2 rectangles. One being 12in x 13in and one being 18in x 7in. Find the area of each rectangle.
12in x 13in = 156in^2
18in x 7in = 126in^2
Add the two areas.
156 + 126 = 282in^2

282in^2 is the answer so (C)
5 0
3 years ago
Convert the decimal 0.92 to a fraction.
Pavel [41]

Answer:

23/25

Step-by-step explanation:

6 0
3 years ago
F(x)=(x-6)e^-3x find the interval in which f(x) is increasing, the intervals on which f(x) is decreasing, and the local extrema
Over [174]
\bf f(x)=(x-6)e^{-3x}\\\\&#10;-----------------------------\\\\&#10;\cfrac{dy}{dx}=1\cdot e^{-3x}+(x-6)-3e^{-3x}\implies \cfrac{dy}{dx}=e^{-3x}[1-3(x-6)]&#10;\\\\\\&#10;\cfrac{dy}{dx}=e^{-3x}(19-3x)\implies \cfrac{dy}{dx}=\cfrac{19-3x}{e^{3x}}

set the derivative to 0, solve for "x" to get any critical points
keep in mind, setting the denominator to 0, also gives us critical points, however, in this case, the denominator will never be 0, so... no critical points from there

there's only 1 critical point anyway, and do a first-derivative test on it, check a number before it and after it, to see what sign the derivative has, and thus, whether the graph is going up or down, to check for any extrema
5 0
3 years ago
X=16-4y. systems of equations 3x+4y=8<br> substitution
alina1380 [7]

Answer:

x=-4  y=5

Step-by-step explanation:

Rewrite equations:

x=−4y+16;3x+4y=8

Step: Solvex=−4y+16for x:

x=−4y+16

Step: Substitute−4y+16forxin3x+4y=8:

3x+4y=8

3(−4y+16)+4y=8

−8y+48=8(Simplify both sides of the equation)

−8y+48+−48=8+−48(Add -48 to both sides)

−8y=−40

−8y

−8

=

−40

−8

(Divide both sides by -8)

y=5

Step: Substitute5foryinx=−4y+16:

x=−4y+16

x=(−4)(5)+16

x=−4(Simplify both sides of the equation)

Answer:

x=−4 and y=5

6 0
2 years ago
Please zoom in the picture for the question.
Mazyrski [523]
There’s a 2/6 chance that the science project would be first
3 0
2 years ago
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