A test has 40 questions. If Marcel got 75% correct, how
many questions did Marcel get wrong?

Answers

Answer 1

Answer:

10

Step-by-step explanation:

Answer 2

Answer:

30

Step-by-step explanation:


Related Questions

Nancy received a birthday gift of $35. She decided to
use this money to start a savings account and then
deposited $5 into the account every week.
Which equation represents the relationship between
w, the number of weeks she has saved, and s, the
total amount saved?
s = 35W - 5
s= 5W - 35
S = 35W + 5
s = 5W + 35

Answers

Answer:

Everybody's laughing in my mind

Rumors spreading 'bout this other guy

Do you do what you did when you did with me

Does he love you the way I can

Did you forget all the plans that you made with me?

'Cause baby I didn't

That should be me, holding your hand

That should be me, making you laugh

That should be me, this is so sad

That should be me

That should be me

That should be me, feeling your kiss

That should be me, buying you gifts

This is so wrong

I can't go on

Till you believe

That should be me

That should be me

A wire is bent into semicircles. How long is the wire to the neared hundredth? The diameter is 32 cm

Answers

Answer:

200.96

Step-by-step explanation:

2πr is the perimeter or circumference of a circle

.

diameter is 32cm so radius=16cm

2*3.14*16=100.48cm is long

Mhanifa please help this is late and I don’t get it

Answers

Answer:

Sin k jajs

Step-by-step explanation:

What is the value of -2(x+5) Please I'm in need of help

Answers

Answer:

-2x - 10

Step-by-step explanation:

-2 x X = -2x

-2 x 5 = -10

Put them together to get:

-2x - 10

Answer:

-2(x) or (-2×x)

then you get = -2x

then you take

-2×+5 or (-2×5) you'll get = -10

last but not least you join the equation

and the answer will be

= -2x-10

pleaseee help mee!


..

Answers

Answer:

Step-by-step explanation:

When you fill your coffee at a gas station, you're supposed to get 8 ounces of coffee with a standard deviation of .7 ounces. A random sample of 50 "8 ounce" coffees is collected and measured and the mean was found to be 7.8 ounces.

Answers

Answer:

The answer is below

Step-by-step explanation:

When you fill your coffee at a gas station, you're supposed to get 8 ounces of coffee with a standard deviation of .7 ounces. A random sample of 50 "8 ounce" coffees is collected and measured and the mean was found to be 7.8 ounces. a) Find a 90% confidence interval. b) Interpret the confidence interval in the context.

Solution:

The confidence = 90% = 0.9, mean (μ) = 7.8 ounces, standard deviation (σ) = 0.7 ounces, sample size (n) = 50

α = 1 - C = 1 - 0.9 = 0.1

α/2 = 0.1 / 2 = 0.05

The z score of α/2 is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.65

The margin of error (E) is given by:

[tex]E = z_\frac{\alpha}{2} *\frac{\sigma}{\sqrt{n} } \\\\E=1.65*\frac{0.7}{\sqrt{50} } =0.16[/tex]

The confidence interval = μ ± E = 7.8 ± 0.16 = (7.64, 7.96)

b) This means that we are 90% confident that any selected coffee has a weight between 7.64 ounce to 7,96 ounce

help please please please

Answers

Answer:

A

Step-by-step explanation:

because every 3 bats he hit 1

Jimmy,bobby,johnny, and brenda are arguing over how to best estimate 3,186 ÷ 79

Answers

Answer:

40.3291139241

Step-by-step explanation:

no, thank you

Answer: You get 40.36 first. If it is by nearest tenth, then 40.4. Nearest ten, then 40

I only need the b if someone has it could pass it to me

Answers

Answer:

40%

Step-by-step explanation:

It for some reason won’t let me put the whole page

Answers

i’m confused, does the page tell u what x is ?
The solution is: (x+3)(x+8). When solved X=(-3, -8).


115
11.5
Find the area of the shaded region

Answers

Answer:

227 units²

Step-by-step explanation:

Area of rectangle

a = (2 * 11.5) * (4 * 11.5)

a = 1,058

Area of circles

a = 2(π * 11.5²)

a = 830.9512568745

Shaded area

a = 1,058 - 830.9512568745

a = 227.0487431255

a ≈ 227

What is 1/6-1/30 equal to (simplified form)

Answers

The answer should be 2/15 in simplified form

Answer:

I'm pretty sure it is 2/15

Given AE ≈ EC, for what value of x is quadrilateral ABCD a parallelogram?

Answers

Answer:

X = 1/3 (to make it short) plz brainliest

Step-by-step explanation:

(05.06 LC)

Which graph best represents a decreasing function?

A graph shows a non linear curve that joins the ordered pairs 0, 0, and 3, 1.5, and 5, 5.
A graph shows a straight line that joins the ordered pairs 5, 0 and 5, 5.
A graph shows a non linear curve that joins the ordered pairs 0, 5, and 1, 2, and 5, 0.
A graph shows a straight line that joins the ordered pairs 0, 3 and 5, 3.

Answers


A graph shows a non linear curve that joins the ordered pairs 0, 5, and 1, 2, and 5, 0.

In the rectangle below, SU= 4x-2, RT = 5x-10, and m ZSVT= 84º.
Find RV and m ZVUR.
R
S
U
T

Answers

Answer:

RV = 15, ∠ VUR = 48°

Step-by-step explanation:

The diagonals of a rectangle are congruent , so

RT = SU , that is

5x - 10 = 4x - 2 ( subtract 4x from both sides )

x - 10 = - 2 ( add 10 to both sides )

x = 8

Then

RT = 5x - 10 = 5(8) - 10 = 40 - 10 = 30

The diagonals bisect each other , then

RV = 0.5 × 30 = 15

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

∠ RVU = ∠ svt = 84° ( vertical angles )

RV = UV ( diagonals are congruent and bisect each other )

Then Δ RVU is isosceles with base angles congruent , then

∠ VUR = [tex]\frac{180-84}{2}[/tex] = [tex]\frac{96}{2}[/tex] = 48°

-2/5 + 1 1/3 find the sum

Answers

Answer: =14/15

Step-by-step explanation: Hope this help :D, Can I have a Brainliest I really needed it please!

A triangle has sides with lengths of 72 inches, 78 inches, and 30 inches. Is it a right triangle?

Answers

Right triangles cant be found with the lengths of the sides of the triangle it’s the degrees of the actual Angles within the triangle a right triangle has at least one 90 degree angle

Answer:

yes

Step-by-step explanation:

Using the converse of Pythagoras' identity.

If the square of the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right.

longest side = 78 and 78² = 6084

72² + 30² = 5184 + 900 = 6084

Then the triangle is right

simplify 3+4(y-7)+5y​

Answers

Answer:

9y-25

Step-by-step explanation:

Answer:

9y-25

Step-by-step explanation:

Math

Is the point on the line ?

Answers

Answer:

i think the answer is no i used tge desmo graphing calculator and tht point wasnt on it

C
3 m
4 m
What is the length of the hypotenuse?

Answers

Answer:

5 meters

Step-by-step explanation:

The values given, 3 and 4, are the legs a and b. The hypotenuse is the third and longest side, c.

To find the length of the hypotenuse, use the formula a² + b² = c².

Substitute our values for a and b and solve.

a² + b² = c²

3² + 4² = c²

9 + 16 = c²

25 = c²

√25 = √c²

5 = c

The hypotenuse is 5 meters long.

I hope this helps <3

What is the maximum height of of Anna's golf ball? The equation is y=x−0.04x2.

Answers

Given:

The height of a golf ball is represented by the equation:

[tex]y=x-0.04x^2[/tex]

To find:

The maximum height of of Anna's golf ball.

Solution:

We have,

[tex]y=x-0.04x^2[/tex]

Differentiate with respect to x.

[tex]y'=1-0.04(2x)[/tex]

[tex]y'=1-0.08x[/tex]

For critical values, [tex]y'=0[/tex].

[tex]1-0.08x=0[/tex]

[tex]-0.08x=-1[/tex]

[tex]x=\dfrac{-1}{-0.08}[/tex]

[tex]x=12.5[/tex]

Differentiate y' with respect to x.

[tex]y''=(0)-0.08(1)[/tex]

[tex]y''=-0.08[/tex]

Since double derivative is negative, the function is maximum at  [tex]x=12.5[/tex].

Substitute [tex]x=12.5[/tex] in the given equation to get the maximum height.

[tex]y=(12.5)-0.04(12.5)^2[/tex]

[tex]y=12.5-0.04(156.25)[/tex]

[tex]y=12.5-6.25[/tex]

[tex]y=6.25[/tex]

Therefore, the maximum height of of Anna's golf ball is 6.25 units.

Isaac and his wife received an award of $ 9,000 each for their work as researchers.
Isaac invests his money and earns 9% annual simple interest while his wife invests it at 9% compound interest per year. How much more money did Isaac's wife make than Isaac after 10 years?

F $5,500.00
G $3,455.50
H $4,206.30
J $4,998.50

Answers

Answer:

H

Step-by-step explanation:

I don't know if I did it wrong because I got 4,206.27 but I probably did

NEED HELP will give BRAINLY

Answers

Answer:

y=1x+8

Step-by-step explanation:

The best way to remember the formula is y=mx+b aka (your mom's ex bf)Just by looking at the slope you can automatically tell it's moving by one so in your formula, 'm' is the slope.Add 1x to replace 'm' or you can leave x alone because x is already one, your choice.b is the indication on where your slope started in the y-axis. In this case, by looking at the y-axis on the graph, the slope starts at 8 so that will be your b.Therefore, your answer is y=1x+8

Pythagorean Theorem Digital Escape Puzzle 5,Need Answer Immediately!!!

Answers

Answer: a = 6.53

Step-by-step explanation:

Answer: its HCFD i just did it

Step-by-step explanation:

The product ( the result of a multiplication problem ) of 2 rational expressions is x+22x−3 with the restrictions x≠– 3, x≠32, x≠4 and x≠ 5. Find an expression that meets the criteria. You may leave your answer in factored form.

Answers

Answer:

x + 22x - 3 = 4 (5x) + 3 (x-1)

Step-by-step explanation:

x + 22x - 3  

23x - 3

20x + 3x - 3

5x + 15x + 3x - 3

5x (1 + 3) + 3 ( x - 1)

4 (5x) + 3 (x-1)

a) (-6)* = -6° b) (-3) = -3$ c) 82 = (-8)
[tex]( 5 + 4 {)}^{2} = {5}^{2} + {4}^{2} [/tex]

Answers

Answer:

pues yo pienso que es 8 es que no se muy bien

f(x)=x2. what is g(x)?

Answers

Answer:

A

Step-by-step explanation:

Hi again. In this case, the graph enlarges. Coefficient of x is <1. Try to substitute x = 3 to (1/3x)^2 and (1/9x^2)

(1/3 * (3))^2=1

Find the measures of the exterior angles of the polygon.

Answers

Answer:

D : 125°,125°,55°,55°

Step-by-step explanation:

Finding the interior angles makes the question easier.

The two base angles for b1 are both 125°, and the two base angles for b2 are both 55°.

Because a straight line is 180°, we can find the exterior angles by subtracting the interior angles from 180°.

180°-55° = 125°

180°-125° = 55°

what is 4.13 to the nearest tenth

Answers

Answer:

4.1

Step-by-step explanation:

The answer is 4.1 I’m pretty sure :)

base, 6 millimeters;
height, 4 millimeters

Answers

Answer:

You would multiply them which would be 24 brainliest?

Step-by-step explanation:

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