All categories

2 years ago

The base of a triangle is 7 less than twice its height. if the area of the triangle is 102cm^2 find the length of the base

1 answer:

7 0

B=2h-7
Area of a triangle: A=1/2 of bh
replace b with 2h-7: A=(1/2)(2h-7)h=102 => (2h-7)h=204
2h^2-7h-204=0
factor or use quadratic function to solve
h=12
b=2*-7=17

You might be interested in

24+0.44x=19+1.69x<br> Can someone answer this real quick

abruzzese [7]

24 + 0.44x = 19 + 1.69x

Subtract 19 from both sides

5 + 0.44x = 1.69x

Subtract 0.44x from both sides

5 = 1.25x

Divide by 1.25 on both sides

4 = x

6 0

2 years ago

Jasmine is framing a picture for her moms birthday. The picture is 23.65 square inches. The length of the picture is 5.5 inches.

olga_2 [115]

Is the picture a square

I can give better answer if I know

it wont let me type in the comments

8 0

2 years ago

Find the perimeter of this triangle.<br>HELP ASAP!!!!

irga5000 [103]

Answer: 119

Step-by-step explanation: base * height / 2

14*17/2=119. can i get Brainliest please

4 0

2 years ago

An article reports "attendance dropped 2% this year, to 3750." What was the attendance before the drop?

Anastasy [175]

Answer:

7,500 was the attendance before the drop.

Step-by-step explanation:

3750 x 2

5 0

1 year ago

Read 2 more answers

The following situation calls for a significance test. State the appropriate null hypothesis <img src="https://tex.z-dn.net/?f=H

harina [27]

Answer:

$H_{0}: \sigma = 10\\$

$H_{a}: \sigma > 10\\$

Step-by-step explanation:

We are given the following in the question:

The organizers estimate that the variation in distance flown by the athletes will be σ = 10 meters.

This will be stated by the null hypothesis.

$H_{0}: \sigma = 10\\$

It was claimed that the organizers are underestimating the variation and the variation in distance is greater than 10.

This will be stated by the alternate hypothesis.

$H_{a}: \sigma > 10\\$

The parameter for the given hypothesis is standard deviation, $\sigma$ .

3 0

2 years ago