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3 years ago

Can someone help me real fast please.

Mathematics

2 answers:

lilavasa [31]3 years ago

6 0

Answer:

Step-by-step explanation:i wanted to ask this questionWhich property of metals is Luis most likely going to demonstrate using these materials

Leviafan [203]3 years ago

4 0

None are correct. The answer is y=2
x=2

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An isosceles triangle has an angle that measures 26°. Which other angles could be in that

snow_tiger [21]

Answer:

26° 26° 128°

77° 77° 26°

Step-by-step explanation:

So we have two scenarios here.

One of them is if the base angles are 26°.

If that's true, the other angle is 128°

The other scenario is the opposite.

This means the base angles are 77°

5 0

2 years ago

A mule deer can run one over four of a mile in 25 seconds. At this rate, which expression can be used to determine how fast a mu

kondor19780726 [428]

the answer is D. twenty-five seconds over one-fourth mile = 100 miles per hour.

3 0

2 years ago

2x^2+x-6=0 find the complex roots

Vadim26 [7]

2x²+x-6=0
(2x-3)(x+2)=0
x=3/2 or -2
☺☺☺☺

7 0

3 years ago

In 2016, there were a total of 41 national battlefields and national memorials. The number of national memorials is three less t

goldfiish [28.3K]

Answer: 11, 30

Step-by-step explanation:

Given

There were a total of 41 national battlefields and national memorials

Suppose there are $x$ national battlefields

So, national memorials are $3x-3$

The sum of the two must be 41

$\Rightarrow x+3x-3=41\\\Rightarrow 4x=44\\\Rightarrow x=11$

So, there are 11 national battlefields and $3\times 11-3=30$ national memorials.

3 0

2 years ago

A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the

makkiz [27]

$f(t)=h=-16t^2+20t+6

$

a=-16, b=20, c =6

Δ= $b^2-4ac=20^2-4*(-16)*6=400+384=784$

$\sqrt{Δ}=\sqrt{784}=28$

max:

$p=-\frac{b}{2a}=-\frac{20}{-32}=\frac{20}{32}=\frac{5}{8}$

max heigh: $h=-16(\frac{5}{8})^2+20*\frac{5}{8}+6=-16\frac{25}{64}+\frac{100}{8}+6$

$h=-\frac{25}{4}+\frac{50}{4}+6=\frac{-25+50+24}{4}=\frac{49}{4}$

$h=\frac{49}{4}$ at $t=\frac{5}{8}s$

will fall down at t:

$t=\frac{-20-28}{-32}=\frac{-48}{-32}=\frac{3}{2}=1.5$

$t=1.5s$

8 0

2 years ago