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ANTONII [103]
3 years ago
11

Help! due in a min!Find the angle measures for the following:m<1=___ m<4=___​

Mathematics
2 answers:
andrezito [222]3 years ago
6 0

Answer:

m∠1 = 20°

m∠4 = 110°

Step-by-step explanation:

m∠1 + 70° = 90°

m∠1  = 20°

70° + m∠4 = 180°

m∠4 = 110°

stira [4]3 years ago
5 0

Answer:

\boxed{m  \angle1 \: = 20} \\ \\ \boxed{m \angle4 = 110}

Step-by-step explanation:

m  \angle1 \: =90 - 70 = 20 \\   m \angle4 = 360 -( 180 + (180 - 110)) \\ m \angle4 = 360 - 250 \\ m \angle4 = 110

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Trapezoid ABCD has an area of 525 cm squared. If height AB = 21 cm and BC = 37 cm, what is the measure of AD?​
Annette [7]

Answer:

AD = 13

Step-by-step explanation:

Area of trapezoid ABCD

=  \frac{1}{2} (AB + AD) \times AB \\  \\  525=  \frac{1}{2} (37+ AD) \times21\\  \\  525 \times 2=  (37+ AD) \times21 \\  \\ 1050 = 21 \times 37 + 21AD \\  \\ 1050  = 777+ 21AD \\  \\  21AD  = 1050 - 777 \\  \\ 21AD  = 273 \\  \\ AD  =  \frac{273}{21}  \\  \\ AD  = 13

8 0
3 years ago
3. one fifth as a decimal
Y_Kistochka [10]
The answer for this question is 0.2
6 0
3 years ago
Which choices are equivalent to the fraction below? check all that apply 16/36
kenny6666 [7]

Answer:

\frac{16}{36} = \frac{8}{18} = \frac{4}{9}

Step-by-step explanation:

\frac{16}{36} = \frac{16/4.5}{36/4.5} = \frac{3.5555}{8} \neq  \frac{3}{8} \\\\\frac{16}{36} = \frac{16/12}{36/12} = \frac{1.3333}{3} \neq  \frac{1}{3} \\\\\frac{16}{36} = \frac{16/9}{36/9} = \frac{1.7777}{4} \neq  \frac{1}{4} \\\\\frac{16}{36} = \frac{16/4}{36/4} = \frac{4}{9} \\\\\frac{16}{36} = \frac{16/7.2}{36/7.2} = \frac{2,2222}{5} \neq  \frac{2}{5} \\\\\frac{16}{36} = \frac{16/2}{36/2} = \frac{8}{18} \\\\

3 0
3 years ago
3x²-9x+1+0 Find the discriminant
Sindrei [870]

Answer:

\boxed{D = 69}

Step-by-step explanation:

The given quadratic equation is:

3x^2-9x+1 = 0

Comparing it with the standard form of Quadratic Equation ax^2+bx+c = 0 , we get:

a = 3, b = -9 and c = 1

Discriminant = b² - 4ac

D = (-9)²-4(3)(1)

D = 81 - 12

D = 69

3 0
3 years ago
A store sold 70 copies of a magazine for $350. Each copy of the magazine costs the same. Which equation and set of ordered pairs
Ainat [17]
The answer is C. 5x

We need to find the price of one magazine. To do this we divide 350 by 70

350 / 70 = $5 per magazine

8 0
3 years ago
Read 2 more answers
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