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3 years ago

What is the measure of ZABD?

Mathematics

1 answer:

Illusion [34]3 years ago

6 0

Answer:

Step-by-step explanation:

If ZABC is a 90 degree angle all together and ZDBC is 51 degrees

Subtract 51 from 90 to get the angle for ZABD

90-51=39

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I would greatly appreciate if anyone could show me how to complete this problem.

Naya [18.7K]

Answer:

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3 years ago

Can someone please help me this this??

Brrunno [24]

Answers:

bio = 258

sociology = 169

============================================================

Work Shown:

x = number of bio textbooks

y = number of sociology textbooks

x+y = 427 books sold total

y = x-89 since 89 less sociology textbooks were sold compared to bio

Apply substitution to get the following

x+y = 427

x+x-89 = 427 ... replace y with x-89

2x-89 = 427

2x = 427+89

2x = 516

x = 516/2

x = 258 bio textbooks were sold

y = x-89

y = 258-89

y = 169 sociology textbooks were sold

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2 years ago

The school library has 2469 books two thirds of the books are paper backs how many books are paper backs

Greeley [361]

Answer:

1646

Step-by-step explanation:

2/3 of 2469 = 2/3 × 2469 = 2 × 2469/3 = 1646

3 0

3 years ago

Read 2 more answers

Find the Slope. (4, 4) (2, 3)<br> please and thanks

Dmitriy789 [7]

Answer: its m= 1/2

Step-by-step explanation:$\mathrm{Slope\:between\:two\:points}:\quad\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$Slope between two points: Slope=

y2−y1

x2−x1

$\left(x_1,\:y_1\right)=\left(2,\:3\right),\:\left(x_2,\:y_2\right)=\left(4,\:4\right)$(x1, y1)=(2, 3), (x2, y2)=(4, 4)

$m=\frac{4-3}{4-2}$m=

4−3

4−2

$\mathrm{Refine}$Refine

$m=\frac{1}{2}$m=

Examples

$slope\:3x+3y-6=0$slope 3x+3y−6=0

$slope\:f\left(x\right)=2x-1$slope f(x)=2x−1

$slope\:\left(-1,\:1\right),\:\left(-2,\:-3\right)$slope (−1, 1), (−2, −3)

$slope\:\left(-1,\:-2\right),\:\left(1,\:2\right)$slope (−1, −2), (1, 2)

$slope\:\left(0,\:-4\right),\:\left(-1,\:-7\right)$slope (0, −4), (−1, −7)

$slope\:\left(-4,\:2\right),\:\left(0,\:3\right)$slope (−4, 2), (0, 3)

4 0

3 years ago

Read 2 more answers

Help me svsuushsjsjsjshshsjsjjsjsjebdbz pls

Vlad1618 [11]

Answer: 20

Step-by-step explanation:

STEP:1

Find the area of one circle

the area of the circle is equal to

A=bh

we have

b=11 ft

h=11 ft

subsititute

A= 11 times 11= 121

STEP: 2

Find the area of one circle

the area of the circle is equal to

A= $\pi r^2$

we have

r=11/2= 5.5

$\pi$ = 3/14

Subsititute

A= (3/14) (5.5^2)=94.985

STEP 3:

Find the REA OF THE FIGURE

121 ft^2 + 94.985 ft^2= 20.0656631

7 0

3 years ago

What is the measure of ZABD?​

What is the measure of ZABD?