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trasher [3.6K]
2 years ago
7

I need this to be solved please!

Mathematics
2 answers:
AleksAgata [21]2 years ago
6 0

Answer:

x=50

Explanation:

tiny-mole [99]2 years ago
4 0

Answer:

Today: Tuesday, 19th January 2021

4.13 PM

\tt \frac{1}{5} (x - 15) = 7

\tt  \frac{x}{5}  - 3 = 7

\tt \frac{x}{5}  = 7 + 3

\tt  \frac{x}{5}  = 10

{\boxed{  \tt\red{x = 50}}}

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Evaluate the integral. 3 2 t3i t t − 2 j t sin(πt)k dt
sveta [45]

∫(t = 2 to 3) t^3 dt

= (1/4)t^4 {for t = 2 to 3}

= 65/4.

----

∫(t = 2 to 3) t √(t - 2) dt

= ∫(u = 0 to 1) (u + 2) √u du, letting u = t - 2

= ∫(u = 0 to 1) (u^(3/2) + 2u^(1/2)) du

= [(2/5) u^(5/2) + (4/3) u^(3/2)] {for u = 0 to 1}

= 26/15.

----

For the k-entry, use integration by parts with

u = t, dv = sin(πt) dt

du = 1 dt, v = (-1/π) cos(πt).


So, ∫(t = 2 to 3) t sin(πt) dt

= (-1/π) t cos(πt) {for t = 2 to 3} - ∫(t = 2 to 3) (-1/π) cos(πt) dt

= (-1/π) (3 * -1 - 2 * 1) + [(1/π^2) sin(πt) {for t = 2 to 3}]

= 5/π + 0

= 5/π.

Therefore,

∫(t = 2 to 3) <t^3, t√(t - 2), t sin(πt)> dt = <65/4, 26/15, 5/π>.

3 0
3 years ago
Please help me! its algebra 1
scZoUnD [109]
The answer is D-16

16/4= 4. 4x3=12. 12-2=10
8 0
3 years ago
Read 2 more answers
I WILL MARK BRAINLIEST! Solve for X
NARA [144]

Answer:

Step-by-step explanation:

You are to assume in both problems that the two triangles are similar. That is a very dangerous assumption -- especially in later math classes. But in this case, there is no other way to do the problem. The two sets of triangles look like they are proportional.  So set up two ratios that are = to each other

On the left

long side small triange / long side large triangle = base small triangle / base large triangle

On the right

hypotenuse/longest leg = hypotenuse / longest leg.

Problem A

Set up the similar Proportion

5/40 = x/20                Cross Multiply

40x = 20*5

40x = 100                   Divide by 40

x = 100/40

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Problem B

Again set up the similar triangle proportion

15/10 = x/2                  Multiply by 2

15*2/10 = x              

3 = x

6 0
3 years ago
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Which number is equivalent to 6%? Select all that apply.
a_sh-v [17]

Answer:

0.06 and 6/100

Step-by-step explanation:

6 0
3 years ago
HELP PLEASE!! is math 20 points
snow_lady [41]

Answer:

  • 0x = 0y

0

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