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2 years ago

Add.

Mathematics

2 answers:

Elina [12.6K]2 years ago

8 0

Answer:

2x²+4x-4

Step-by-step explanation:

hope this helps,

that's how you can add, check out the image i uploaded

maxonik [38]2 years ago

8 0

**Disclaimer** Hi there! I assumed the [ x- ] part is not included in the question. The following answer is according to this understanding. Please let me know if it is incorrect and I will modify my answer correspondingly.

Answer: $C.~\Large\boxed{2x^2+4x-4}$

Step-by-step explanation:

Given expression

$(2x^2-2x)+(6x-4)$

Expand the parenthesis

$2x^2-2x+6x-4$

Combine like terms

$\Large\boxed{2x^2+4x-4}$

Hope this helps!! :)

Please let me know if you have any questions

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A cylindrical container holding sugar has a height of 15 inches and a diameter of 4 inches. Which of the following is the closes

nadya68 [22]

V=(h)(pi)(r^2)
say pi=3.14
h=15
d/2=r=4/2=2

so
v=(15)(3.14)(2)^2
v=(15)(3.14)(4)
v=(60)(3.14)
v=188.4

so answer is D

6 0

3 years ago

a forest ranger in a 140-foot observation tower sees a fire moving in a direct path toward a lake. the angle of depression to th

Setler79 [48]

Answer:

1675 ft

Step-by-step explanation:

For us to calculate how close the windmill is to the fire, if we imagine it as a triangle, the distance from watch tower to the fire will be:

tan θ= opposite/adjacent

opposite=140 ft

adjacent = x

θ=3°

Thus;

tan 3 = 140/x

x=140/tan 3

x = 2,671.359 ft

Now, the distance from watch tower to windmill will be:

tan θ=opposite/ adjacent

θ=8°

opposite=140 ft

adjacent=y

thus

tan 8 = 140/y

y = 140/tan8

y=996.15 ft

Now, the distance between fire and wind mill will be:

x - y = 2671.359 - 996.15

x - y = 1675.209 ≈ 1675 ft

6 0

4 years ago

Read 2 more answers

Can someone help w/ math plz asap

slava [35]

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7 0

3 years ago

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one gym membership charges $10 a month with a sign-up fee of $45. Another gym does not charge patrons a sign-up fee but costs $2

ss7ja [257]

After 3 months memberships will cost the same.

We have,

Cost of Membership of 1st gym = $ 10 per month

And, the Cost of the sign-up fee for 1st gym = $ 45

And,

Cost of Membership of 2nd gym = $ 25 per month

And, the Cost of the sign-up fee of the 2nd gym = $ 0

Now,

Let the number of months = m

So,

According to the question;

45 + 10m = 25m

⇒

25m - 10m = 45

15m = 45

m=3

So, After 3 months memberships will cost the same.

Learn more about memberships here:

brainly.com/question/352169

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4 0

2 years ago

Please help me out :)

arlik [135]

Answer:

$\frac{\sqrt{17} }{7}$

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1, then

sinx = $\sqrt{1-cos^2x}$

Note that ( $\frac{4\sqrt{2} }{7}$ )² = $\frac{32}{49}$

sinΘ = $\sqrt{1-(32/49)}$

= $\sqrt{\frac{17}{49} }$ = $\frac{\sqrt{17} }{7}$

5 0

3 years ago