What are the solutions of 2x^2 + 7x = 4
½
4

-4
7
-7

Answers

Answer 1
I got -1/2 and -4 as the solutions.
Answer 2
explication;for a polynomial of the form ax 2 + b X + c, rewrite the middle term as a sum of two terms whose product is a c = 2 ⋅ - 4= -8 and whose sum is b = solution;

Related Questions

If 5 people have 8 1/2 pounds of cherries equally, how many pounds of cherries does each person get?

Answers

Answer : 1.7 pounds

Step-by-step explanation:

8 1/2 / 5 = 1.7

Answer : 1.7 poundsStep-by-step explanation:8 1/2 / 5 = 1.7

Ms. Garcia burns 236 calories riding her bike each
hour. She wants to burn more than 354 calories
riding her bike at the same rate.
Which inequality represents all possible values for
t, the number of hours Ms. Garcia must ride her
bike to burn more than 354 calories?

A t < 1.5
B t > 1.5
C t < 0.5
D t > 0.5

Answers

b. because she burns 354 calories in a hour and a half it has to be more than that

The inequality that represents all possible values for t is:

t > 1.5

Which inequality is the correct one?

We know that she burns 236 calories per hour, so if she rides for t hours, she burns a total of:

t*236 calories.

Now, she wants to burn more than 354, so we have the inequality:

t*237 > 354

Solving for t (by dividing both sides by 237) we get:

t > 354/237 = 1.5

t > 1.5

So the correct option is B.

If you want to learn more about inequalities, you can read:

https://brainly.com/question/18881247

formula of circumference of a circle​

Answers

Answer:

C=2πr

Step-by-step explanation:

This is the formula for the circumference of a circle

If this helps please mark as brainliest

NEED HELP ASAP, WILL GIVE BRAINLIEST

Find the x-intercept(s) and the coordinates of the vertex for the parabola y=x + 2x-15. If there is more than one x-intercept, separate them with commas,​

Answers

Step-by-step explanation:

y = x^2 + 2x - 15

To find the x-intercepts, factor out the right side:

y = x^2 + 2x - 15

= (x + 5)(x - 3)

This means that the x-intercepts are at (-5, 0) and (3, 0).

Method 1:

The x-coordinate of the vertex of a parabola is given by the following:

x = -b/2a, where a = 1 and b = 2

= -(2/(2×1))

= -1

Using this value of x gives y = -16

Therefore, the coordinates of the vertex is (-1, -16).

Method 2:

We can find the x-coordinate of the vertex by taking the derivative of y and equating it to zero:

y' = 2x + 2 = 0 ---> x = -1

Using this value of x into our equation, we get y = -16.

Therefore,

vertex: (-1, -16)

Classify this triangle by its sides.

Answers

Answer:

A. isosceles but not equilateral

Step-by-step explanation:

as we can see with the congruency markings, two sides are equal whereas one is different. this is the definition of isosceles

Answer:

it is an isosceles triangle

Step-by-step explanation:

the triangle has two equal sides thus it is an isosceles triangle

When Avani goes bowling, her scores are normally distributed with a mean of 145 and a standard deviation of 12. Using the empirical rule, determine the interval that would represent the middle 68% of the scores of all the games that Avani bowls.

Answers

Answer:(133,157)

Step-by-step explanation:

Using the empirical rule, the interval that would represent the middle 68% of the scores of all the games that Avani bowls is (133, 157).

What is Empirical Rule?

Empirical rule is a rule for normally distributed data which defines that almost all the data observed ranges between three standard deviations from the mean.

Here, the scores of Avani is normally distributed.

Mean, μ = 145

Standard Deviation, σ = 12

By the Empirical rule, about 68% of the data falls within one standard deviation.

That is, in the interval μ ± σ.

Interval is (μ - σ, μ + σ) = (145-12, 145+12) = (133, 157)

Hence the interval is (133, 157).

Learn more about Empirical Rule here :

https://brainly.com/question/30700783

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Jose is trying to pick out an outfit for the first day of school. He can choose from 2 pairs of pants, 6 t-shirts, and 3 pairs of shoes. How many different outfits does Jose have to choose from?

Answers

Jose has 36 outfits in total, just multiply all the numbers together

Jose has to choose from 36 different ways.

What is the Combination?

The various ways in which objects from a set may be selected, generally without replacement to form subsets is known as combination.

For the given situation,

Pairs of pants = [tex]2[/tex]

T-shirts = [tex]6[/tex]

Pairs of shoes = [tex]3[/tex]

The formula to find the number of ways using combination = [tex]nC_{r}[/tex]

Number of ways of picking the outfit = [tex](2C_{1}) (6C_{1}) (3C_{1} )[/tex]

⇒ [tex](2)(6)(3)[/tex]

⇒ [tex]36[/tex]

Hence we can conclude that Jose has to choose from 36 different ways.

Learn more about combinations here

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Max is taking 38 children for rides in
his boat. He can only take 5 children
at a time. How many rides will it take
for all of the children to have one turn?

Answers

Answer: 8 turns

Step-by-step explanation: 5 children at a time, so 5*8=40, which is the closest to 38

drag each expression to show whether it is equivalent to 3 time times 9 or to 2x3x9​

Answers

The first and third one goes to the left box and the second and fourth one goes to the right box

The approximate number of diameters it takes to wrap around a circle
A) 5

B) 3

C)8

D) 1

E) 10

Need help quick will name anyone braineist
And pls pls pls show work with ur answer! Thank you!

Answers

Answer: three

Step-by-step explanation: I don’t know the steps, but we took a test and I got this one wrong and we had to do test corrections and the answer is three!!

10 POINTS ONLY ANWSER IF YOU KNOW!!!

a.Function 1
b.Funtion 2
c.The functions have the same slope

Answers

Answer:

Function 1 has a greater slope

Step-by-step explanation:

Answer:

function 1 has a great slope

Riley has 24 more stickers than Maria.
Create an expression to show the number of stickers Riley has in terms of n by moving terms and symbols to the lines.
Then move a phrase to complete the sentence to define the variable n.

Answers

Answer:

n+24=x

Step-by-step explanation:

Answer: the 8

Step-by-step explanation:

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match the values with the statistical measures for these data points.

34, 37, 39, 32, 48, 45, 53, 62, 58, 61, 60, 41

46.5
62
34
59
48
60
32
38
upper quartile
arrowRight
maximum
arrowRight
minimum
arrowRight
lower quartile
arrowRight
median
arrowRight

Answers

Answer:

lower quartile - 38

upper quartile - 59

maximum - 62

median - 46.5

minimum - 32

I hope this help. Have a great day!

mary bought five pairs of socks that cost $8 each. if the tax rate was 8% how much did mary pay in total?

(please help!!)

Answers

Answer:

The Answer would be $40.64

Step-by-step explanation:

To find a percentage of a certain number, you must multiply that number by the percentage in decimal form. Since the socks cost 8 dollars each 8 x 0.08 = 0.64 Meaning the tax cost is 64 cents. 8 x 5 = 40 Giving us $40.64

What is the volume. Round to the nearest hundredth if necessary.

Answers

Answer:

[tex]\pi\cdot25\cdot\frac{12}{3} = 314.1592654[/tex]

Help please and thank you

Answers

15.7 I believe.. I’m not sure but I multiplied pie and 5

A ball is thrown from a height of 49 meters with an initial downward velocity of 2 m/s. The ball's height h (in meters) after t seconds is given by the following.
[tex]h=49-2t-5t^2[/tex]
How long after the ball is thrown does it hit the ground?
Round your answer(s) to the nearest hundredth.
(If there is more than one answer, use the "or" button.)

Answers

A ball is thrown from an initial height of 6 feet with an initial upward velocity of 40ft/s . The ball's height h(in feet) after t seconds is given by the following. h=6+40t-16t^2 Find all values of t for which the ball's height is 28feet. Round your answer(s) to the nearest hundredth.

A book sold 42,000 copies in its first month of release. Suppose this represents 9.6 of the number of copies sold to date. How many copies have been sold to date?

Answers

Answer: 437,500 copies

Step-by-step explanation:

42,000 copies were sold in the first month and this is 9.6% of the total that have been sold till date:

To find the total that have been sold till date, assume the amount to be x.

Expression will be:

9.6%x = 42,000

x = 42,000 / 9.6%

x = 42,000 / 0.096

x = 437,500 copies

437,500 copies have been sold to date.

Can someone help me out my grads are bad

Answers

Answer:

9

Step-by-step explanation:

39 x 39 = 1521

1521 divided by 169

= 9    good luck bro

Babatunde draws a drinking glass on graph paper using the scale shown below. The glass has a length of 888 units in the drawing.
A drinking glass on graph paper. An 8-unit long line is labeled, "height." A 2-unit long scale is labeled, "2.5 centimeters."

Answers

Answer:

Hum ty

Step-by-step explanation:

It’s 65

Harrison can fit 35 baseballs into a bucket. How many buckets will be needed to hold all of the 390 baseballs?

Answers

Answer:

11

Step-by-step explanation:

Right triangle ABC has side lengths AB = 4x+28, BC = 2x+13, AC = 3x-15. Assuming C is the right angle, for which value of x is tan(B) undefined?

Answers

Answer:

D

Step-by-step explanation:

Because the other just make no sense

can someone PLEASE help? only if you know how!

answer has to be in simplest radical form

Answers

Answer:

8

Step-by-step explanation:

The 30-60-90 triangle rule states that the hypotenuse is equal to the short leg times 2. So 4 x 2 = 8.

Solve for q.

3/5 = q/10

q=?

Answers

Simply the equation by using cross-multiplication, you get 30=5q
Then you swap sides of the equation, you get 5q=30
Then you divide both sides of the equation by 5
Your answer is q=6

A line is reflected. Which of these could be the result?
O A.
B.
O c.
/
OD.

Answers

Answer:

C

Step-by-step explanation:

I believe the answer would be C because its the only actual line on a graph.

A Is a line segment

D is a ray

(I'm not sure what the exact name for the one on graph B is.)

Answer:

the answer ic C!

Step-by-step explanation:

AP EX

Please help. COS (C)=

Answers

Answer:

7/25

Step-by-step explanation:

Answer:

hi nice to meet you

Step-by-step explanation:

7/25 that's all

Find the missing probability.

P(A) = 7/20 P(B) = 7/10 P(A and B) = 49/200 P(A or B) = ?

A) 27/40 B) 161/200

C) 16/25 D) 51/100

Answers

Answer:

2740 is the correct answer

Answer:B is correct

Step-by-step explanation:

Find the value of x.

Answers

Answer:

(B) 18

Step-by-step explanation:

The shape is fliped but when put to the point where the shapes look the same QP is congruent to DE. Shape DEFG is 2 times bigger than shape PQRS. So all the line measures on PQRS are 2 times smaller than those on DEFG. Meaning x or QP is equal to 18 since 36 divided by 2 is 18.

Hope this helped :)

Javier made 180 cupcakes. Each cupcake is covered with frosting. • 1/3 of the cupcakes have vanilla frosting. • 1/10 of the cupcakes have lemon frosting. • 2/5 of the cupcakes have chocolate frosting. • the rest have strawberry frosting. How many cupcakes have strawberry frosting

Answers

Answer:

30 strawberry cupcakes

Step-by-step explanation:

180 cupcakes in total

1/3 of 180 - 60 = vanilla

1/10 of 180- 18 = lemon

2/5 of 180 - 72 = chocolate

rest of 180 - 180-(72+18+60) = strawberry

rest of 180 - 180-150 = 30 = strawberry

Add all of them:

60 vanilla

18 lemon

72 chocolate

30 strawberry

---------------------------

180 cupcakes

Hope this helps!

someone plz help figure this out i need it today

Answers

Can u make the picture closer

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