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gladu [14]
1 year ago
11

Determine if each situation represents a proportional relationship. Explain your reason 1. A brownie recipe calls for 3 parts co

coa powder to 2 parts flour. Lizzy adds 1/3 cup of cocoa powder and 1/2 cup of flour.​
Mathematics
1 answer:
Nataliya [291]1 year ago
8 0

Answer:

Lizzy's recipe is not a proportional relationship with the brownie recipe because of the difference in ratio.

Step-by-step explanation:

Brownie recipe:

Cocoa powder = 3 parts

Flour = 2 parts

Ratio of cocoa powder to flour = 3 : 2

Lizzy's recipe:

Cocoa powder = 1 cup

Flour = 1 cup

Ratio of cocoa powder to flour = 1 : 1

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Using the image above, what is the measure of Side AC? Round to the nearest hundredth
Evgesh-ka [11]

To solve this problem, we just have to use trigonometric ratios and apply which of the ratios is needed here and proceed to solve. The value of side AC is 2.85 units

<h3>Trigonometric Ratio</h3>

In the given diagram, we have the value of angle and hypothenuse and we are required to find the adjacent side of the triangle.

Data;

  • Angle = 32.9 degrees
  • Hypothenuse = 3.4

Let's use cosine rule for this.

cos\theta = \frac{adjacent}{hypothenuse}

Proceed to substitute the values into the equation and solve.

cos 32.9 = \frac{AC}{3.4} \\AC=3.4cos32.9\\AC = 2.85

From the calculations above, the value of side AC is 2.85 units

Learn more on trigonometric ratio here;

brainly.com/question/11967894

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3 0
2 years ago
Calculate the Midpoint M of line segment AB given, A(4,-10) and B(8,4).
hodyreva [135]

Answer:

(6,-3)

Step-by-step explanation:

Using midpoint formula, we have

x=(4+8)/2=12/2=6

y=(-10+4)/2=-6/2=-3

3 0
3 years ago
PLEASE HELP ME!!! I NEED HELP!!! WILL MARK BRAINLIEST!!!
GREYUIT [131]

Answer:

1.) D

2.) F

3.) C

4.) H

Step-by-step explanation:

i am positive on 4, but not totally sure on 1, 2, and 3

3 0
3 years ago
A rectangle has a length of 12 feet and a perimeter of 40 feet
yawa3891 [41]

Answer:

x= 8 feet   (answer : A)

Step-by-step explanation:

hello :

the perimeter is : P= 2(x+y)       y : the length      x : the width

P=40   and  y = 12    calculate : x

2(x+12) =40

divid by 2 :  x+12 =20

x=20-12

x= 8 feet

3 0
4 years ago
Finding missing angle. PLEASE HELP ME!
pishuonlain [190]

Answer:

x=147°

Step-by-step explanation:

1. Analyze: The angle opposite to the 33 degree angle is 33 degrees because they are vertical angles.

2. Make an equation: The sum of all four angles (x, the angle opposite of x, the 33 degree angle, and the angle opposite of the 33 degree angle) is 360°. Therefore the equation would be (33°x2)+2x= 360°.

3. Solve for x:

      a. Multiply 33 by 2

               66+2x=360

      b. Subtract 66 from both sides

               66+2x=360

               -66       -66

               2x=294

      c. Divide both sides by 2

                  \frac{2x}{2} =\frac{294}{2}

                   x=147

4. Remember to add your label- the degree sign (°)

                  x=147°

4 0
3 years ago
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