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3 years ago

Find m∠1.A) 103°B) 13°C) 77°D) 26°

Mathematics

2 answers:

liberstina [14]3 years ago

5 0

Answer:

B) 13°

Step-by-step explanation:

a right angle is 90°. Angle 2 is congruent to 77° so it is 77°. 90° minus 77° gives you the total of 13°. 13 + 77 = 90

lana [24]3 years ago

5 0

The measurement of angle 1 is B) 13°

Explanation: 2=77° because it shares a vertex angle 1 and 2 equal 90°. So 90°-77°=13°

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Factor.

Ivahew [28]

Answer:

(x² - 3)(x² + 3)

Step-by-step explanation:

$x^{4}$ - 9 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , thus

$x^{4}$ - 9

= (x² )² - 3²

= (x² - 3)(x² + 3)

6 0

3 years ago

What is the slope of a line perpendicular to the line whose equation is 2y=-6x+8

Effectus [21]

2y=-6x+8

First, the slope of any equation, is always the coefficient with the variable "x".

So, the slope for this line, is -6x.

To get rid of the coefficient with y, we need to divide 2, from both sides of the equal sign.

2y=-6x+8

y=-3+4

Now that we have our new equation, we can see that the slope of our line has also changed, from -6x to-3x. Because -6÷2=-3.

And to find the perpendicular slope, you change the reciprocal of the slope so from -3 to 1/-3 and then you change the sign of the slope so from 1/-3 to 1/3. That is your final answer.

The answer is 2) 1/3.

5 0

3 years ago

Read 2 more answers

Given:

notsponge [240]

A line bisector is a straight line that divides a given line into two equal parts. Thus the following steps are required by Naomi to show that point D is equidistant from points A and C.

BD ⊥ AC (given)

BD = 3 units, and AC = 8 units.

BD is the perpendicular bisector of segment AC (given)

Thus,

<BDA ≅ <BDC (right angles formed by a perpendicular bisector)

AD ≅ DC (equal parts of a bisected line)

AD ≅ DC = 4 units

Thus joining points B to A, and B to C,

BA ≅ BC.

So that applying Pythagoras theorem to ΔABD, we have:

$/hyp/^{2}$ = $Adj 1^{2}$ + $Adj 2^{2}$

$AB^{2}$ = $3^{2}$ + $4^{2}$

= $\sqrt{25}$

AB = 5 units

So that,

BA ≅ BC = 5 units

Therefore, it can be concluded that point D is equidistant from points A and C.

For more clarifications on a perpendicular bisector of a line, visit: brainly.com/question/929137

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3 0

2 years ago

Eleven members of the Middle School Math Club each paid the same amount for a guest speaker to talk about problem solving at the

Alla [95]

SINCE THEY ALL PAID EQUALLY, IT HAS TO BE A MULTIPLE OF 3. BY TRIAL AND ERROR, THE FIRST POSSIBLE MATCH IS 3.. SINCE 132 IS DIVISIBLE BY 11

4 0

3 years ago

Read 2 more answers

HELP PLEASE What percentage of 2 meters is 500 millimeters?

BaLLatris [955]

i can't tell you the answer, but i will teach you how to get it!!

first you convert it to a fraction, then you make it a decimal divide the top number by the bottom number, then you move the decimal two places to the right --> and add a percent symbol %

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3 years ago