Yesterday, there were 40 problems assigned for math homework. Greta did 90% of them
correctly. How many problems did Greta get right?

Answer:

I think it might be 24.5

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Answer:

x= 17

Step-by-step explanation:

Use the Pythagorean Theorem

1. 25^= (x+7)^2+7^2

2. 625= (x+7)^2+ 49

3. 576= (x+7)^2

4. 24= x+7

5. 17= x

Answer:

Step-by-step explanation:

(-1 - 4)/(-8 - 0) = -5/-8 = 5/8

hope this helps

Answer: they’re both in the 4:3 ratio

Step-by-step explanation:

4:3 = 8:6 = 12:9 = 16:12 = 20:15 = 24:18 = 28:21 = 32:24 = 36:27 = 40:30, etc

25% = 1/4

Count total squares in each and the number of blue ones.

Divide blue by total and see which one is 1/4.

The 3rd image shows 1/4

Answer:

It is A trust me i got C wrong!

Step-by-step explanation:

Hope this help! (:

Step-by-step explanation:

5x-8=15

5x=15-8

5x=7

x=7/5

x=1.4

Answer:

4

Step-by-step explanation:

40/10=4

Answer: 4

Step-by-step explanation:

40/10=4

Answer:

Part A. The girls have 7/8 pizza all together.

Part B. Samantha drank 5/10 or 1/2 water that day.

Step-by-step explanation:

Part A. The answer is 7/8 because 2/4 is the same thing as 4/8.

2/4 = 4/8

4/8 + 3/8 = 7/8.

So, for the first question the answer is 7/8.

Part B. The answer is 5/10 because 1/5 = 2/10

1/5 = 2/10

2/10 + 3/10 = 5/10

Hope this helps! :)

Answer:

33.6 gallons

Step-by-step explanation:

[tex]\frac{1.27x10^5 mL}{1}[/tex]   ×  [tex]\frac{1 liter}{1000 mL}[/tex]   ×  [tex]\frac{1 gallon}{3.785 liters}[/tex]  =  33.5535 gallons = 33.6 gallons

Answer:

the first one hehdhdhrgdhfggd

Answer:32

Step-by-step explanation:

Answer:

99g

Step-by-step explanation:

I'm guessing on this one but maybe because a whole number has no remainder

Answer:

96.2

Step-by-step explanation:

96.2 is more precise than 99.

Answer:

15.22

Step-by-step explanation:

The equation of the circumference of a circle is 2(pi)r

This is actually because 2pi is angle of the arc that makes up the full circle (radians of course)

so a simple formula is:

arc length in radians X radius

radius = 4 cm

the area that the question wants is the oposite

of the 142 degree section so 360 - 142 = 218

218 degrees *  (pi/180) = 3.80482 rad

3.80482 * 4 = 15.21928 cm

Answer:

180-144.5= 35.5

Explanation:

Supplementary means two angles add up to 180 degrees.

so 180-144.5= 35.5

Hope it helps you.

Answer:

17.7 inches

Step-by-step explanation:

Use the Pythagorean Theorem.

length² + width² = diagonal²

width² = diagonal² - length² = 19² - 7² = 312

width = √312 ≅ 17.7 inches

Answer:

17.7

Step-by-step explanation:

got it right at k12 :)

Answer:

A. [tex]4(2x+1)(x-2)[/tex]

Explanation:

[tex]8x^{2} -12x-8[/tex]

1. You can factor out a 4.

        [tex]4(2x^{2} -3x-2)[/tex]

2. Factor [tex](2x^{2} -3x-2)[/tex].

        X-Method:

        1. Draw an X

        2. Multiply ac (2(-2)=-4) then put it in the top part of the X

        3. Then put b, -3, in the bottom part of the X

        4. On the two sides of the X find out what added together equals b, -3,

        and multiplied equals ac, -4.

        5. -4(1)=-4 & -4+1=-3

        6. If the quadratic has a coefficient then you must divide the two sides

        of the X by that coefficient, 2.

        7. -4/2=-2 & 1/2 can't be evenly divided into, so in this case the

        coefficient remains.

        8. When you write this out it will be (2x+1)(x-2)

3. Put it together to get your answer.

        [tex]4(2x+1)(x-2)[/tex]

Answer:

A

Step-by-step explanation:

Answer:

he would need 11 quarters.

Step-by-step explanation:

you already have 3 dimes which is $0.30 and 11 quarters is $2.75.

Answer:

I really don't know

Step-by-step explanation:

Answer:

[tex]3 \times 3 - 9 + 2 = 9 - 9 + 2 = 2[/tex]

Answer: 2

Step-by-step explanation: 9-9=0+2=2

Answer:  

tan theta = -1

we know tan = opposite/ adjacent

So opposite/adjacent = -1

Multiply by adjacent on each side

opposite = - adjacent

We also know from pythagorean theorem that

opposite ^2 + adjacent ^2 = hypotenuse ^2

Substituting in for adjacent

opposite ^2 + (-opposite ) ^2 = hypotenuse ^2

opposite ^2 + opposite ^2 = hypotenuse ^2

2 opposite ^2 = hypotenuse ^2

Taking the square root on each side

sqrt(2 opposite ^2)   =  sqrt(hypotenuse ^2)

sqrt(2) opposite = hypotenuse

We are now set to find the sec

sec theta = hypotenuse / adjacent

              = sqrt(2) opposite/ adjacent

Replace the opposite = -adjacent

                = sqrt(2) (-adjacent)/adjacent)

                = -sqrt(2)

Step-by-step explanation:

Answer:

tan theta = -1

we know tan = opposite/ adjacent

So opposite/adjacent = -1

Multiply by adjacent on each side

opposite = - adjacent

We also know from pythagorean theorem that

opposite ^2 + adjacent ^2 = hypotenuse ^2

Substituting in for adjacent

opposite ^2 + (-opposite ) ^2 = hypotenuse ^2

opposite ^2 + opposite ^2 = hypotenuse ^2

2 opposite ^2 = hypotenuse ^2

Taking the square root on each side

sqrt(2 opposite ^2)   =  sqrt(hypotenuse ^2)

sqrt(2) opposite = hypotenuse

We are now set to find the sec

sec theta = hypotenuse / adjacent

             = sqrt(2) opposite/ adjacent

Replace the opposite = -adjacent

               = sqrt(2) (-adjacent)/adjacent)

               = -sqrt(2)

Step-by-step explanation:

Answer:

8x - 16

Step-by-step explanation:

8(x−2)

=(8)(x+−2)

=(8)(x)+(8)(−2)

=8x−16

Answer:

42/3

Step-by-step explanation:

Answer:

Mean - 5

Standard Deviation - 4.5

Step-by-step explanation:

Just got it correct on Khan Academy :)

80% is her free throw shooting percentage.

A fraction represents a part of a whole.

We can construct a fraction in which the numerator is how many shots she makes, and the denominator is how many shots she took overall.

We now have the following fraction:4/5

To convert this to a percentage, we want the denominator to be 20/20

4/5×20/20

80/100

0.8

Now multiply 0.8 with 100

0.8×100=80

Hence, 80% is her free throw shooting percentage.

To learn more on Fractions click:

https://brainly.com/question/10354322

#SPJ2

Answer:

y = 2/3x+2

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

CUZ PENTHOUSES ARE AT TOPS OF HOTELS