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umka2103 [35]
3 years ago
7

The measure of the angles of a triangle are 2:7:9 ratio what is the measure of the angles? ​

Mathematics
1 answer:
Stolb23 [73]3 years ago
3 0
The angles in a triangle sum to 180.
2x+7x+9x=180
18x=180
X=10
The angles are 20,70, and 90
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Pls help!! 15 points!
Vesna [10]

When trapezoidal prism undergoes a dilation, the size of the prism changes

The height of the image is 52.2 meters

<h3>How to determine the height of the image?</h3>

The given parameters are:

A1 = 35 m²

A2 = 315 m²

H1 = 5.8 m

To calculate the height of the image, we make use of the following equivalent ratio

A1 : H1 = A2 : H2

So, we have:

35 : 5.8 = 315 : H

Express as fractions

35/5.8 = 315/H

Make H the subject

H = 315 * 5.8/35

Evaluate the product

H = 52.2

Hence, the height of the image is 52.2 meters

Read more about dilation at:

brainly.com/question/3457976

6 0
2 years ago
Read 2 more answers
Solve the equation and show all work please show steps!!<br> m/9 - 17=21
masya89 [10]
Okay. The question is m/9 - 17 = 21. First off, we will add 17 to both sides. -17 + 17 cancels out. 21 + 17 is 38. That leaves m/9 = 38. Multiply each side by 9 to isolate the m, because m is the numerator and 9 is the denominator. m/9 * 9/1 cancels out. 38 * 9 is 342. Let's check this. 342/9 is 38. 38 - 17 is 21. 21 = 21. There. x = 342.
3 0
3 years ago
Read 2 more answers
15. Identify the slope of the line below and state the equation of the line.
mamaluj [8]

Answer:

Slope: m = 0

Equation: y = 3

Step-by-step explanation:

The equation of a line has the following format:

y = mx + b

In which m is the slope.

We choose two points which the equation crosses.

I am going to choose (0,3) and (1,3)

(0,3)

When x = 0, y = 3. So

y = mx + b

3 = 0m + b

b = 3

(1,3)

When x = 1, y = 3. So

y = mx + 3

3 = 1m + 3

m = 0

Slope: m = 0

Equation: y = 3

6 0
3 years ago
Fernando will divide 0.24 by 4 to help him solve a math problem. Which model below could represent this math problem
balandron [24]

Answer:

So the model should represent either \frac{6}{100} or\frac{3}{50} (its equivalent and simplified form.

Step-by-step explanation:

1) Originally the question wants to represent this quotient as tiles.

So,\frac{\frac{24}{100}}{4} =\frac{24}{100} *\frac{1}{4} =\frac{6}{100}=

We can still simplify it, but since we're dealing with 100 x 100 squares let's keep it this way

2) So the model should represent either \frac{6}{100} or\frac{3}{50} (its equivalent and simplified form.

6 0
3 years ago
Nicole sold 1 cherry pie and 9 pumpkin pies for $60. Lisa sold 11 cheery pies and 4 pumpkin pies for $90. what's the cost each o
zubka84 [21]
X= cost per cherry pie
y= cost per pumpkin pie

NICOLE
1x + 9y= $60

LISA
11x + 4y= $90


STEP 1
multiply Nicole's equation by -11

-11(1x + 9y)= -11($60)
multiply -11 by all terms

(-11 * x) + (-11 * 9y)= (-11 * 60)

-11x - 99y= -660


STEP 2
add Nicole's new equation from step 1 to Lisa's equation to solve for y (using the elimination method)

-11x - 99y= -660
11x + 4y= 90
the x terms "cancel out"

-95y= -570
divide both sides by -95

y= $6 per pumpkin pie


STEP 3
substitute y value into either original equation to solve for x

x + 9y= $60

x + 9(6)= 60

x + 54= 60
subtract 54 from both sides

x= $6 per cherry pie


CHECK
11x + 4y= $90
11(6) + 4(6)= 90
66 + 24= 90
90= 90


ANSWER: Each cherry pie costs $6 and each pumpkin pie costs $6.

Hope this helps! :)
3 0
3 years ago
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