Jeremy flew 8 times last week for work. If each flight was 2 hours long, how much time did Jeremy spend in the air?

i need help quick!! this is unit 1:geometry basics. homework 5: angle relationships if anyone know tell me

EleoNora [17]

Answer:

I do not know the answer of 6 and 7

5 0

3 years ago

Read 2 more answers

Can somebody explain what the problem is explaining to me

Olin [163]

Answer:

The problem basically is saying that find two numbers that add up to 8, where one is three times the other.

Step-by-step explanation:

The best thing to do here is to write a simple system of equations.

b+y=8

b=3y

The first equation means that the total blue paint plus the total yellow paint is equal to 8 ounces.

The second equation means that the blue paint is equal to 3 times the yellow paint.

We can isolate b in the first equation to get b=-y+8

-y+8=3y

8=4y

y=2.

So we have that she needs two ounces of yellow paint.

Therefore she needs six ounces of blue paint.

Drag the yellow bar to 2, and the blue bar to 6.

Hope this helps!

4 0

2 years ago

How do i solve quadratics and quadratic formula

Murljashka [212]

Step-by-step explanation:

Multiply the first and last coefficient

Find a pair that has the product of ac (above) and the sum of b

Replace the b-term with the pair.

Divide the four terms into two-terms on the left side and two terms on the right side and factor out the common terms from each side.

This is reverse of the distributive property so the terms factored out (on the outside of the common term) combine to create a factor and the common term is the other factor.

Set each factor equal to zero and solve for the variable.

***************************************************************************************

1a. Answer: a = 1/2 a = -1

2a² + 3a + 1 = 0 → ac=2, b = 3 → use 1, 2 (product is 2 & sum is 3)

2a² + 2a + 1a + 1 = 0

2a² + 2a +1a + 1 = 0

2a(a + 1) +1(a + 1) = 0

(2a + 1)(a + 1) = 0

2a + 1 = 0 and a + 1 = 0

a = 1/2 and a = -1

**************************************************************************************

1b. Answer: y = -5/2 y = -5

2y² + 5y - 25 = 0 → ac=-50, b = 5 → use 10, -5 (product is -50 & sum is -5)

2y² + 10y - 5y - 25 = 0

2y(y + 5) -5(y + 5) = 0

(2y - 5)(y + 5) = 0

2y + 5 = 0 and y + 5 = 0

y = -5/2 and y = -5

**************************************************************************************

1c. Answer: y = 5 y = 1/2

2y² - 11y + 5 = 0 → ac=10, b = -11 → use -1, -10 (product is 10 & sum is -11)

2y² - 1y - 10y + 5 = 0

2y² - 1y -10y + 5 = 0

y(2y - 1) -5(2y - 1) = 0

(y - 5)(2y - 1) = 0

y - 5 = 0 and 2y - 1 = 0

y = 5 and y = 1/2

4 0

3 years ago

Which statement describes the behavior of the function f (x) = 3x/4-x

Luba_88 [7]

The graph approaches 0 as x approaches infinity.

Step-by-step explanation:

The behavior of the graph is presented by the function;

f(x)= 3x/4-x

Forming a table to see the behavior,

x f(x)

1 1

2 3

3 9

4 infinity

5 -15

6 -9

7 -7

8 -6

This shows that as value of x approaches positive infinity, the value of f(x) approaches 0.

Learn More

Functions :brainly.com/question/11275875

Keywords : statements, behavior, function, graph

#LearnwithBrainly

8 0

2 years ago

Read 2 more answers

Porphyrin is a pigment in blood protoplasm and other body fluids that is significant in body energy and storage. Let x be a rand

SOVA2 [1]

Answer:

Question 1:

(a) P(x<60) = 0.9236

(b) P(x>16) = 0.9564

(c) P(16<x<60) = 0.88

(d) P (x>60) = 0.0764

Question 2:

(a) P(x<3) = 0.0668

(b) P(x>7) = 0.0062

(c) P(3<x<7) = 0.927

Step-by-step explanation:

Question 1:

x = no. of mg of porphyrin per deciliter of blood.

μ = 40

σ = 14

(a) We need to compute P(x<60). We need to find the z-score using the normal distribution formula:

z = (x - μ)/σ

P(x<60) = P((x - μ)/σ < (60 - 40)/14)

= P(z < 20/14)

= P(z<1.43)

Using the normal distribution probability table we can find the value of p at z=1.43.

P(z<1.43) = 0.9236

so, P(x<60) = 0.9236

(b) P(x>16) = P(z>(16-40)/14)

= P(z>-1.71)

= 1 - P(z<-1.71)

= 1 - 0.0436

P(x>16) = 0.9564

(c) P(16<x<60) = P((16-40)/14) < x < (60-40)/14)

= P(-1.71 < z < 1.43)

This probability can be calculated as: P(z<1.43) - P(z<-1.71)

P(16<x<60) = 0.9236 - 0.0436

P(16<x<60) = 0.88

(d) P(x>60) = 1 - P(x<60)

we have calculated P(x<60) in part (a) so,

P(x>60) = 1 - 0.9236

P (x>60) = 0.0764

Question 2:

μ = 4.5 mm

σ = 1.0 mm

In this question, we will again compute the z-scores and then find the probability from the normal distribution table.

(a) P(x<3) = P(z<(3-4.5)/1)

= P(z<-1.5)

P(x<3) = 0.0668

(b) P(x>7) = 1 - P(x<7)

= 1 - P(z<(7-4.5)/1)

= 1 - P(z<2.5)

= 1 - 0.9938

P(x>7) = 0.0062

(c) P(3<x<7) = P(x<7) - P(x<3)

we have computed both of these probabilities in parts (a) and (b) so,

P(3<x<7) = 0.9938 - 0.0668

P(3<x<7) = 0.927

6 0

2 years ago