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2 years ago

Which equation matches the statement: "The sum of -4x and 2 is 9"??

Mathematics

1 answer:

neonofarm [45]2 years ago

6 0

Answer:

Step-by-step explanation:

sum means addition

the problem says sum of -4x and 2 meaning -4x + 2

the word "is" right before 9 means equals 9

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What is the volume of a sphere with a diameter of 4 meters? (Use 3.14 for π.)

mixer [17]

Answer:

volume of the sphere = $33.493m^3$

Step-by-step explanation:

Given:

$Diameter= 4 m$ , $Radius = 4/2 =2 m$

Volume of a sphere= $\frac{4}{3} *\pi* r^3$

= $\frac{4}{3} *\pi* 2*2*2$ : $\pi =3.14$

= $\frac{4}{3} *3.14*2*2*2$

= $1.33*3.14*2*2*2$

= $33.493m^3$

The volume of the sphere with the radius of 2 m is $33.493m^3$

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2 years ago

Help me and I will give u brain..................

Lemur [1.5K]

It would probably be B

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2 years ago

What is co efficient of -9xy2z

Radda [10]

The coefficient of ALL variables is the number in front of the variable, which here its -9

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2 years ago

Show me how to get this answer show your work

Rama09 [41]

We know that angle MKJ is comprised of angle MKL and angle LKJ. That means if we add MKL and LKJ, we should get 80 degrees, which is the measure of angle MKJ.

$MKL + LKJ= MKJ \implies \\ 2x+10+3x-5=80 \implies \\ 5x+5=80 \implies\\ 5x=75 \implies \\ x=15$

So, we know that our x is 15. That is not enough to tell whether KL is an angle bisector, because we have to evaluate both MKL and LKJ with x=15, so:

$MKL=2(15)+10 = 40\\ LKJ=3*15-5=40$

So we see that these two angles are actually bisectors, and the third question best describes this phenomenon.

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2 years ago

Read 2 more answers

Use the formula v = u + at to find the velocity, when

SVETLANKA909090 [29]

Answer:

$v = u + at \\ v = 3 + (1.5 \times 7) \\ v = 3 +10.5 \\ \boxed{v = 13.5 \: m {s}^{ - 1}}$

<h3>13.5 m/s is the right answer.</h3>

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2 years ago