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77julia77 [94]
4 years ago
9

Solve by quadratic equation (x-4)2+8=0

Mathematics
1 answer:
tia_tia [17]4 years ago
5 0

Answer:

x=4

Step-by-step explanation:

(x-4)2+8=0

(x-4)10=0

10x-40=0

10x=0+40

10x=40

x=40/10

x=4

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How can we tell if a number is divisible by 4? 
Orlov [11]
A is the correct answer. We all know that 100 is divisible by 4, so any multiple of 100 is also divisible by 4 (ex. 500, 1500, etc.)z Therefore, any number can be divisible by 4 regardless of what is in the hundreds place and above. What counts is the last two digits of the number, the tens and ones places. For example, let's look at 334 and 324. 34 is not divisible by 4, therefore 334 is not divisible by 4. 24 is divisible by 4, therefore 324 is divisible by 4. Check in a calculator for proof!
5 0
4 years ago
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Tresset [83]

option c is the answer....

3 0
3 years ago
Kevin made a jewelry box with the dimensions shown width: 15 cm length: 10 cm depth: 5 cm. what is the volume of the jewelry box
ziro4ka [17]

you need to know the mass of the jewelry box before you can know the volume but i can help you multiply th 15 and the 10 to get the mass most likely then divided what you have from 15 x 10 by the depth and you have your answer just be sure to round it off!


8 0
3 years ago
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A boat that is 2 miles offshore from a lighthouse is moving parallel to the coast. The light on the lighthouse is turning at the
Papessa [141]

Answer:

speed of light movement when boat is 1 mile from light house is 0.029  miles/sec

Step-by-step explanation:

Given data:

distance of boat from light house is 2 miles

rate of turning of light is 100 degree per minute

w = 100 degree/min

w = 100 \times \frac{\pi}{180} rad/min

w = 1.745 rad/min

w = 0.0290 rad/sec

speed of movement of light v = w\times r

v = 0.029 \times 1 = 0.029 mile/sec

thus speed of light movement when boat is 1 mile from light house is 0.029  miles/sec

4 0
3 years ago
Delta math: Angle Terminology with Equations
DaniilM [7]

Answer:

m∠A = 139°

Step-by-step explanation:

First we must know that

Supplementary angles equal to 180 degree.

Since we know that supplementary angles equal to 180 degree we can solve now:

Putting m ∠A and m ∠ B together and put the = 180

( 7x - 15 ) + ( 2x - 3 ) = 180

Now solving for x:

( 7x - 15 ) + ( 2x - 3 ) = 180

9x - 18 = 180

9x - 18 + 18 = 180 + 18

9x  = 198

9x/9 = 198/9

x = 22

Hence,  Angle A will have a measure of 7x - 15 which means  7 ×  22 -15 = 154 - 15 = 139°

m∠A = 139°

The measure of Angle B will be 2x - 3 = 2 • 22 - 3 = 44 - 3 = 41°

m∠ B = 41°

139 + 31= 180

<u><em>[RevyBreeze]</em></u>

3 0
3 years ago
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