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2 years ago

Answer A and B. I will give the brainliest to the best answer.

Mathematics

2 answers:

Alexxandr [17]2 years ago

5 0

Answer:

a) 267 b) 445

Step-by-step explanation:

BlackZzzverrR [31]2 years ago

5 0

Answer:

A) 267 fruit flies had red eyes.

B) 445 fruit flies did not have red eyes.

Step-by-step explanation:

First, you find 3/8 of 712, which was 267. Then, you subtract the 712 by 267: 712-267=445. Which shows 445 fruit flies did not have red eyes.

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The radioisotope Mo-91 has a t1/2 of 15.5min. A sample decays at the rate of 954counts/min (954cpm). After how many minutes will

TiliK225 [7]

Step-by-step explanation:

Transcribed image text: Spectra Analysis 7 100 80 60 40 20 150 50 STRUCTURE 60 40 20 0 180 160 140 120 100 8O

5 0

2 years ago

I need help on number 17 and 18 on how to find the area of the figure

JulsSmile [24]

17. Area of triangle: 1/2bh
1/2 * 12 * 15
1/2 * 180
=90 cm^2

18. Area of trapezoid: 1/2 h (b1 + b2)
1/2 * 8 ( 12 + 15.4)
4 * 27.4
= 109.6 cm^2

3 0

3 years ago

Read 2 more answers

Evaluate the integral. (Assume a ≠ b. Remember to use absolute values where appropriate. Use C for the constant of integration.)

Bess [88]

Answer:

F(x)= 5*[ $\frac{x^{3} }{3}$ + (a*b)* $\frac{x^{2} }{2}$ + a*b*x + C.

Step-by-step explanation:

First step we aplicate distributive property to the function.

5*(x+a)*(x+b)= 5*[ $x^{2}$ +x*b+a*x+a*b]

5*[ $x^{2}$ +x*(b+a)+a*b]= f(x), where a, b are constant and a≠b

integrating we find ⇒∫f(x)*dx= F(x) + C, where C= integration´s constant

∫^5*[ $x^{2}$ +x*(a+b)+a*b]*dx, apply integral´s property

5*[∫ $x^{2}$ dx+∫(a*b)*x*dx + ∫a*b*dx], resolving the integrals

5*[ $\frac{x^{3} }{3}$ + (a*b)* $\frac{x^{2} }{2}$ + a*b*x

Finally we can write the function F(x)

F(x)= 5*[ $\frac{x^{3} }{3}$ + (a*b)* $\frac{x^{2} }{2}$ + a*b*x ]+ C.

4 0

3 years ago

I need to do this now

zhannawk [14.2K]

Answer:

4.55294117. If you want it rounded look below.

Step-by-step explanation:

-Rounded-

Hundredths:4.55

Tenth: 4.6

Thousandth: 4.553

Whole Number: 5

Hope this helps. :D

8 0

2 years ago

What is the ratio of total shapes to triangles? Circle ⭕ triangle triangle circle ⭕ triangle triangle circle ⭕ triangle triangle

olya-2409 [2.1K]

3:2. There's a total of 9 shapes, 6 triangles, and 3 circles.
Next, you take the ratio of 9:6 and divide each number by 3, one at a time.

6 0

3 years ago