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3 years ago

SHOW ALL OF WORK. Find missing length, round to the nearest tenth if necessary.

Mathematics

2 answers:

hoa [83]3 years ago

8 0

This is using the pythagorean theorem:)

Basile [38]3 years ago

3 0

Answer:

Step-by-step explanation:

to do this you need to use the Pythagorean theorem

a^2+b^2=c^2

9^2+12^2=c^2

81+144=c^2

$\sqrt{225}$ = $\sqrt{c^2}$

c=15

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Find the value of x. • 5 • 20 • 40 • 45

insens350 [35]

Answer:

3rd option: x= 40

Step-by-step explanation:

4x° +20°= 180° (adj. ∠s on a str. line)

Bringing constants to 1 side:

4x°= 180° -20°

Simplify:

4x°= 160°

Divide by 4 on both sides:

x°= 40°

Thus, x=40.

7 0

3 years ago

Rewrite the subtraction as addition 3- (-10)

Bumek [7]

Rewrite the subtraction as addition 3- (-10)

= 3 + 10

4 0

3 years ago

The average grain of salt is 0.0003 meters wide. Rhinovirus, which causes the common cold, is 0.00000003 meters wide. How many t

algol [13]

Answer:

$1\times 10^4\ times$

Step-by-step explanation:

Given:

Width of average grain of salt is, $w=0.0003\ m$

Width of Rhinovirus is, $W=0.00000003\ m$

Now, expressing each width in scientific notation form, we get:

$w=0.0003\ m = 3\times 10^{-4}\ m\\\\W=0.00000003\ m = 3\times 10^{-8}\ m$

Now, in order to get how many times 'W' is wider than 'w', we divide the two widths. This gives,

$\frac{W}{w}=\frac{3\times 10^{-4}\ m}{3\times 10^{-8}\ m}\\\\\frac{W}{w}=1\times 10^{-4-(-8)}=1\times 10^{-4+8}=1\times 10^4\\\\\therefore W=1\times 10^4\times w$

Therefore, the grain of salt is $1\times 10^4\ times$ wider than Rhinovirus.

5 0

3 years ago

D=h+9 The variable H represents the number of hours worked, and the variable d represents the amount of dough prepared how many

Marta_Voda [28]

Answer:

12 hours

Step-by-step explanation:

If we assume that the units of D are kg, then we can put the given number into the equation and solve.

21 = h +9

12 = h . . . . . subtract 9

Eli worked 12 hours to prepare 21 kg of dough.

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3 years ago

If electricity comes from electrons, does morality come from morons? hmmmmmmmm.....

Natali5045456 [20]

electricity comes from electrons, does morality come from morons? No, you're thinking of mormality. That is true, especially in the US. ... This means that the stupider a group is overall, the less moral they are expected to beon:

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3 years ago