1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Wewaii [24]
3 years ago
12

A section in a stained glass window is shaped like a trapezoid.the top base is 4 centimeters and the bottom base is 2.5 centimet

ers long.if the area of the section of glass is 3.9 square centimeters,how tall is the section?
Mathematics
1 answer:
strojnjashka [21]3 years ago
6 0
The formula for a trapezoid is a= (l+w)/2 * h (substitute knowns) 3.9= (2.5+4)/2 *h. (solve for h) 3.9= 3.25* h 3.9/3.25= h h= 1.2 The height is 1.2cm in length
You might be interested in
Which of the following lines has a negative slope?
Furkat [3]

Answer:

The second option, or the one attached.

Step-by-step explanation:

       This line has a negative slope because the line is going "down the stairs" from the top-left to the bottom-right.

6 0
3 years ago
Read 2 more answers
For the linear equation 3x + 7y = 42: a. Determine the slope: b. Determine y- intercept if it exists: c. Express equation in slo
algol13

Answer:  The required answers are

(a) the slope of the given line is -\dfrac{3}{7}.

(b) y-intercept exists and is equal to 6.

(c) the slope-intercept form of the line is y=-\dfrac{3}{7}x+6.

Step-by-step explanation:  We are given the following linear equation in two variables :

3x+7y=42~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We are to :

(a) determine the slope,

(b) determine the y-intercept, if exists

and

(c) express equation in slope-intercept form.

We know that

The SLOPE_INTERCEPT form of the equation of a straight line is given by

y=mx+c, where m is the slope and c is the y-intercept of the line.

From equation (i), we have

3x+7y=42\\\\\Rightarrow 7y=-3x+42\\\\\Rightarrow y=\dfrac{-3x+42}{7}\\\\\\\Rightarrow y=-\dfrac{3}{7}x+6.

Comparing with the slope-intercept form, we get

\textup{slope, m}=-\dfrac{3}{7},\\\\\\\textup{y-intercept, c}=6.

Thus,

(a) the slope of the given line is -\dfrac{3}{7}.

(b) y-intercept exists and is equal to 6.

(c) the slope-intercept form of the line is y=-\dfrac{3}{7}x+6.

3 0
4 years ago
What are the x-intercepts of y=2x^2+6x-20?
NISA [10]

Answer:

the x-intercepts are -5 and 2

Step-by-step explanation:

y=2x^2+6x-20

x-intercept is when y is set equal to zero

So, y = 0

0 = 2x^2+6x-20

2x^3+6x-20 = 0\\Taking \ 2 \ common\\2(x^2+3x-10) = 0\\Dividing \ both \ sides \ by \ 2\\x^2+3x-10 = 0\\Using \ mid\ term \ break \ formula\\x^2+5x-2x-10 = 0\\x(x+5)-2(x+5)=0\\Taking \ (x+5) \ common\\(x+5)(x-2) = 0

Either,

x+5 = 0    <u><em> OR </em></u>    x-2 = 0

x = -5       <u><em> OR  </em></u>     x = 2

So, the x-intercepts are -5 and 2

7 0
3 years ago
Read 2 more answers
Help me pls help me
coldgirl [10]
1st
0.3/100*15000
=45
2nd
40/200*100
=20
=
3 0
3 years ago
Read 2 more answers
Which table represents a linear function?
Oduvanchick [21]
The first table because the y side is increasing at the same rate. the rate is 4
6 0
3 years ago
Read 2 more answers
Other questions:
  • Travis are 2/3 of a small pizza Kai are 11/15 of a small pizza who ate more?
    5·2 answers
  • the sale tax rate in Jans town is 7.5% if she buys 3 lamps for $23.59 each and a sofa for $769.99, how much sales tax does she o
    10·1 answer
  • Hey can you please help me posted picture of question :)
    11·2 answers
  • Find the slope of each line
    11·2 answers
  • Help me in this page.​
    12·1 answer
  • Need help please help
    12·1 answer
  • Please help me with question 19
    12·1 answer
  • I don’t understand how to do this
    15·2 answers
  • Solve the equation 8·4^x+1=1​
    7·1 answer
  • Help Please Asapppppp​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!