On a test that has a normal distribution, a score of 60 falls two standard deviations above the mean, and a score of 42 falls one standard deviation below the mean. Determine the mean of this test

We can simplify 16/50 by dividing both the numerator and denominator by 2:

Cross multiply the fractions:

Divide both sides by 25 to get x by itself:

The value of x is 50.

Answer:

x is 20 degrees i believe so to check, add all like terms so its 9x, then plug in. it comes out to 180 which means its right

Step-by-step explanation:

Answer:

180=x+7x+x

180=9x

x=180/9

x=20

Answer:

x=7

Step-by-step explanation:

Find the ratio between both triangles

jk = 25, mn = 30

multiply 20 by the ratio 1.2 to get 24

then set 24=4x-4

Answer:

x−4

Step-by-step explanation:

Answer:

here you go

Step-by-step explanation:

the slope is 2 and the y intercept is 1

Answer:

700

Step-by-step explanation:

50% is half so multiply 350 by 2 and its 700.

Plz mark brainliest

Answer:

X=20

Step-by-step explanation:

Answer:

C. x = 20

Step-by-step explanation:

1 /2 x+6−x=x−4−x

−1 /2 x+6=−4

−1 /2 x+6−6=−4−6

−1 /2 x=−10

( 2/ −1 )*( −1 /2 x)=( 2/ −1 )*(−10)

x=20

Answer:

So in this case, (318,80) means 318 times they went up and of those 318 times, they got 80 hits on the ball

Answer:

yeah sure send them to me on i n s t a.elvirame.0

Step-by-step explanation:

Answer:

m

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

What are the options?

Step-by-step explanation:

Answer:

The value of x is 6

Step-by-step explanation:

AAS postulate of congruence is:

In the given figure

∵ JKL and JML are two triangles

∵ ∠K and ∠M are right angles

∴ ∠K ≅ ∠M

∵ ∠JLK and ∠JLM have the same mark

∴ ∠JLK ≅ ∠ JLM

∵ JL is a common side in the 2 triangles

∴ JL = JL

→ BY using the AAS postulate above

∴ ΔJKL ≅ ΔJML

→ From the result of congruency

∴ JK = JM

∵ Jk = 2x - 4

∵ JM = 4x - 16

→ Equate them

∴ 4x - 16 = 2x - 4

→ Subtract 2x from both sides

∴ 4x - 2x - 16 = 2x - 2x - 4

∴ 2x - 16 = -4

→ Add 16 to both sides

∵ 2x - 16 + 16 = -4 + 16

∴ 2x = 12

→ Divide both sides by 2

∴ x = 6

Answer:

y = 26.45 + 32.45x - 9.25x

Step-by-step explanation:

Given the data:

X : _____ 0 _____ 1 ______2 _______ 3

Y : _____29 ____42 _____62 ______ 38

The quadratic regression model has the general equation :

y=A+Bx+Cx2

Fitting the data using a quadratic regression calculator, the equation of best fit obtained is ;

y = 26.45 + 32.45x - 9.25x

Answer:

Apart from the 200 grams of water, Malala will use 220 grams of flour, 4.8 grams of salt, 4 grams of yeast and 12 miligrams of oil.

Step-by-step explanation:

Since Malala uses 200 ml of water for her bread rolls, when the recipe indicates that 500 ml should be used, this implies that she is using 40% of the indicated measures.

Therefore, to know how much use of the remaining products, following with the same proportion, the following calculations must be made:

Flour: 550 x 0.4 = 220 g

Salt: 12 x 0.4  = 4.8 g

Yeast: 10 x 0.4 = 4 g

Oil: 30 x 0.4 = 12 ml

Answer:

B

Step-by-step explanation:

A quadratic has a maximum value when its leading coefficient is negative, as the parabola will be curving downwards.

For A, we have the function [tex]y=x^2+2x+2[/tex]

The leading coefficient here is 1, which is positive. So, A has a minimum value.

For B, we have the function [tex]y=-2x^2-3x+5[/tex]

In this case, the leading coefficient is -2, which is negative. So, B is curving downwards. Therefore, it has a maximum value.

Hence, B is our correct answer.

For C and D, the leading coefficient of C is 1/2 (coefficient in front of the parentheses) and the leading coefficient of D is 1 (coefficient of the squared variable). Since both are positive, both C and D have a minimum.

Answer:

i think the answer is D

but it doesn't presence in the choice

Answer:

(- 4, - 10 )

Step-by-step explanation:

Given the 2 equations

- 10x + 2y = 20 → (1)

y = 3x + 2 → (2)

Substitute y  3x + 2 into (1)

- 10x + 2(3x + 2) = 20 ← distribute parenthesis and simplify left side

- 10x + 6x + 4 = 20

- 4x + 4 = 20 ( subtract 4 from both sides )

- 4x = 16 ( divide both sides by - 4 )

x = - 4

Substitute x = - 4 into (2) for corresponding value of y

y = 3(- 4) + 2 = - 12 + 2 = - 10

solution is (- 4, - 10 )

Answer:

Its B

Step-by-step explanation:

i dont know hot to explain it just is

Answer:

its b

Step-by-step explanation:

Answer:

-6 (PLS MARK BRAINLIEST)

Step-by-step explanation:

-12+4+2

-12+6

=-6

Answer:

the answer is 35

Step-by-step explanation:

7(5)=35

Answer:

35

Step-by-step explanation:

When a variable is next to a number it means you are doing multiplication, like 7xm. So if m=5 it would be 7x5. And 7x5= 35

7m  (m=5)

=7xm

=7x5

=35

blue=4/5 green=2/7

Step-by-step explanation:

Answer:

Q:4A ($30) * 0.85 = $25.50

Q:4B ($18) * 0.85 = $15.30

Q:4C ($24.80) * 0.85 = $21.08

Q5:

(For six pack): $2.10 (each) * 8 = $16.80

(For eight pack): 3.12 (each) * 6 = $18.72

8 of the 6 packs would be the better deal.

Q6 (A): Elena is 142.24 cm tall.

(Formula is multiply the inches by 2.54. So, 56 times 2.54 is 142.24)

Q6 (B): Elena is 1.4224 meters tall.

(Formula is divide inches by 39.37. So, 56 divided by 39.37 is 1.4224)

Answer:

b

Step-by-step explanation:

Answer:

Restaurant A served a greater variety of ages than Restaurant B, because the range of date for Restaurant A is greater than that of Restaurant B.

Step-by-step explanation:

Restaurant A is better that of Restaurant B, served a greater variety of ranges.

An illustration of variation in a set of data is called a box and whisker plot. A histogram analysis usually gives an adequate display, but a box and whisker plot can add more detail while enabling the display of different sets of data on the same graph.

Given:

According to the box plot.

Restaurant A serves 22 to 47 ranges

and, Restaurant B serves 28- 42 ranges.

Hence, Restaurant A serves better.

Learn more about Box- plot here:

https://brainly.com/question/1523909

#SPJ5

Answer:

x = 11

Step-by-step explanation:

Remark

There are two legs. They are equal.

Equation

2x - 4 + 2x - 4 +x = 47                   Combine like terms

Solution

5x - 8 = 47

5x - 8+8 = 47 + 8

5x = 55                                           Divide by 5

x = 11