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Ann [662]
3 years ago
8

Please help ASAP I’m confused I WILL GIVE BRAINLIEST

Mathematics
1 answer:
neonofarm [45]3 years ago
7 0

Answer: x=4.7434

Step-by-step explanation:

Use the pythagorean theorem a^{2} +b^{2} =c^{2}

plug in and solve

x^{2} +3x^{2} =(3\sqrt{10}) ^{2}

4x^{2} =90

x^{2} =22.5

x=4.7424

if you need to solve for the sides

3x = 3(4.7434) = 14.2302

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What is (-8)(-x)(-x)
Mashutka [201]
Correct answer is -8x^2
6 0
3 years ago
PLEASE HELP
lisabon 2012 [21]

Step-by-step explanation:

The figure below shows a portion of the graph of the function j\left(x\right) \ = \ 4^{x-2}, hence the average rate of change (slope of the blue line) between the x and x+h is

                     \text{Average rate of change} \ = \ \displaystyle\frac{\Delta y}{\Delta x} \\ \\ \rule{3.7cm}{0cm} = \dsiplaystyle\frac{f\left(x+h\right) \ - \ f\left(x\right)}{\left(x \ + \ h \right) \ - \ x} \\ \\ \\  \rule{3.7cm}{0cm} = \displaystyle\frac{f\left(x + h\right) \ - \ f\left(x\right)}{h} \\ \\ \\ \rule{3.7cm}{0cm} = \displaystyle\frac{4^{x+h-2} \ - \ 4^{x-2}}{h} \\ \\ \\ \rule{3.7cm}{0cm} = \displaystyle\frac{4^{x-2+h} \ - \ 4^{x-2}}{h}

                                                            \\ \\ \\ \rule{3.7cm}{0cm} = \displaystyle\frac{\left(4^{x-2}\right)\left(4^{h}\right) \ - \ 4^{x-2}}{h} \\ \\ \\ \rule{3.7cm}{0cm} = \displaystyle\frac{\left(4^{x-2}\right)\left(4^{h} \ - \ 1 \right)}{h}

7 0
1 year ago
The equation of line CD is y = −2x − 2. Write an equation of a line parallel to line CD in slope-intercept form that contains po
Mkey [24]
Y = -2x - 2...the slope here is -2. A parallel line will have the same slope.

y = mx + b
slope(m) = -2
(4,5)...x = 4 and y = 5
now we sub and find b, the y int
5 = -2(4) + b
5 = -8 + b
5 + 8 = b
13 = b

so ur parallel equation is : y = 2x + 13
8 0
3 years ago
Read 2 more answers
Solve the proportion. <br> x/4 = 2/5<br> x = ?
max2010maxim [7]
Multiply 4 on both sides.

x = 8 / 5

x = 1 3/5

Hope this helps!
8 0
3 years ago
Read 2 more answers
I need help with this can you explain how to do this so I can understand please ASAP!!
Ratling [72]

Answer: 1.64     2.100

Step-by-step explanation:

The reason for this is squaring something is simply mulyiplying the number by itself. for example

8 squared

there is a 2 above the 8 which means we will do 8x8.

8x8= 64

Hope this helps!!!!

7 0
3 years ago
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