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olga nikolaevna [1]
2 years ago
12

1.

Mathematics
2 answers:
Reil [10]2 years ago
6 0

Answer:

150

Step-by-step explanation:

The sum of the angles of a quadrilateral are 360.  Let x be the unknown angle

30+70+110+x = 360

Combine like terms

210 +x = 360

Subtract 210 from each side

210+x-210 = 360-210

x = 150

Anvisha [2.4K]2 years ago
3 0

Answer:

The measures of the fourth angle is 150 .

Step-by-step explanation:

<h3><u>Given</u> :-</h3>

The measures of three angles of quadrilateral are 30 , 70 and 110.

<h3><u>To find</u> :-</h3>

Find the measures of fourth angle.

<h3><u>Solution</u> :-</h3>

Let, the measures of fourth angle be x.

We know that sum angles of quadrilateral are 360 .

30 + 70 + 110 + x = 360

combine like terms

210 + x = 360

subtract 210 from 360.

x = 360 - 210

x = 150

Therefore, the fourth angle of quadrilateral is 150.

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Answer:

572.4 m

Step-by-step explanation:

Fórmula del ángulo de elevación =

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θ = 3 °

Opuesto = 30 m

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Por eso

bronceado 3 = 30 m / x

Multiplicar cruzada

bronceado 3 × x = 30 m

x = 30 m / bronceado 3

x = 572.43410063m

Aproximadamente = 572.4 m

5 0
3 years ago
State whether the following statement is true or​ false, and explain why. If the statement is​ false, state the true change. A h
katovenus [111]

Answer:

False

Step-by-step explanation:

Given that a high school reports that its​ students' SAT scores were down by 12​% in one year. The next​ year, however, the test scores rose by 20​%.

Let score initially be 100

Down by                     12

Next year score         88

For succeedingyear

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Score in the 2nd year = 88+17.6 = 105.6

Hence overall scores improvement is 5.6% and not 8%

5 0
3 years ago
I can’t figure out how to solve this for a. I’ve tried multiple ways but still have not come up with an answer.
abruzzese [7]

Answer:

a = 33

Step-by-step explanation:

IN a parallelogram consecutive angles are supplementary, thus

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10a - 150 = 180 ( add 150 to both sides )

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8 0
3 years ago
Read 2 more answers
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lys-0071 [83]

Answer:

23/50, 0.46, and 46%

Step-by-step explanation:


This problem is stating that every fifty times you flip a coin you get 23 heads. Finding the fraction is simple, it would be 23/50 because it is expressing the probability. The problem clearly states that every 50 times you get 23 heads. To find the decimal, take the fraction, 23/50, and multiply the numerator and denominator by 2. you get 46/100 which is 0.46. A percent is just a fraction out of a 100 which would make the percent 46.


8 0
3 years ago
What is 2 2/15 - 1 2/3=<br> I ended up with 2 3/21 <br> Really need help with this!
QveST [7]

Answer:

2 \frac{2}{15}  - 1 \frac{2}{3}

=  \frac{32}{15}  -  \frac{5}{3}

=  \frac{32 \times 1 - 5 \times 5}{15}

= \frac{32 - 25}{15}

=  \frac{7}{15}

5 0
3 years ago
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