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2 years ago

Can you help me find x 8th grade math

Mathematics

2 answers:

wel2 years ago

5 0

Answer:

x=53

Step-by-step explanation:

all triangles equal 180° the little lines on each side mean both sides are same length so all u gotta do is

180-74=106

106/2= 53

Yanka [14]2 years ago

3 0

Answer:x=52

180-74=104

104 divided by 2 to get 52

Step-by-step explanation: you would have to divide because both sides are the same size so they would be even. so that is how you would get the answer 52

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Find the 13th term of the geometric sequence 3, -15, 75, ...

Maksim231197 [3]

Step-by-step explanation:

$an = a1 + (n - 1)d \\ d = a2 - a1 \\ a1 = 3 \\ a2 = - 15 \\ d = - 15 - 3 = - 18$

$a13 = 3 + (12) \times ( - 18) \\ a13 = 3 - 216 \\ a13 = - 213$

6 0

2 years ago

Read 2 more answers

Missy is 1.5 meters tall and cast a 9-meter shadow. How long is the shadow of a 6-meter flagpole beside.

PIT_PIT [208]

Answer:

36 meters

Step-by-step explanation:

9 divided by 3 is 3

That means for every 1 meters is 6 meters shadow wise because 3 meters equal to .5 meters.

6 meters of the pole times 6 meters per one real meter equals 36 shadow meters.

Hope that helped, if it did please give me the brainliest.

6 0

2 years ago

Read 2 more answers

A linear equation has more than one intercept. what can you conclude about the graph of the equation?

DanielleElmas [232]

A linear equation of the form :

y = mx+b

can have at the most ONE x-intercept and at the most ONE y-intercept

I can conclude that this linear equation DOESN'T pass through the origin (O) and that it intercepts the x-axis as well as the y-axis

5 0

2 years ago

A traffic helicopter descends 153 meters to be 445 meters above the ground, as illustrated in the

sertanlavr [38]

Answer:

598 meters

Step-by-step explanation:

In the problem, the word 'decend' means to decrease in elevation.

Our equation:

$? - 153 = 445$

Add 153 to both sides of the equation:

$?= 598$

598 meters represents the original height of the helicopter.

6 0

1 year ago

In the diagram below, AC and CB, AB and CD, and m(angle)A=33 degrees. Find M(angle)B

hoa [83]

Answer:

15°.

Step-by-step explanation:

1. Angles ADC and CDB are supplementary, thus

m∠ADC+m∠CDB=180°.

Since m∠ADC=115°, you have that m∠CDB=180°-115°=65°.

2. Triangle BCD is isosceles triangle, because it has two congruent sides CB and CD. The base of this triangle is segment BD. Angles that are adjacent to the base of isosceles triangle are congruent, then

m∠CDB=m∠CBD=65°.

The sum of the measures of interior angles of triangle is 180°, therefore,

m∠CDB+m∠CBD+m∠BCD=180° and

m∠BCD=180°-65°-65°=50°.

3. Triangle ABC is isosceles, with base BC. Then

m∠ABC=m∠ACB.

From the previous you have that m∠ABC=65° (angle ABC is exactly angle CBD). So

m∠ACB=65°.

4. Angles BCD and DCA together form angle ACB. This gives you

m∠ACB=m∠ACD+m∠BCD,

m∠ACD=65°-50°=15°.

Have a good Day!

7 0

2 years ago