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12345 [234]
3 years ago
7

Please hurry simplify the problem a i b 5i c -i

Mathematics
1 answer:
KIM [24]3 years ago
5 0

Answer:

\frac{90}{5} i

Step-by-step explanation:

10 * sqrt(81/25 * -1) = 10 sqrt(81/25) * sqrt(-1) = 10 *9/5 * i

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What is the value of x in the equation 6x − 22 = 76?
gavmur [86]
Put x on one side of the equation


6x=(76+22)

6x=98
x=98/6

Simplify

x=49/3
7 0
3 years ago
Read 2 more answers
Please someone help me !!!!!
Sveta_85 [38]
X² = 16
x = ±√16
x = <span>±4

</span>The roots of this equation are -4 and 4
<span>Сorrect answer is third from above</span>
6 0
3 years ago
The weights of 5 girls are 70 pounds, 68 pounds, 85 pounds, 62 pounds, and 70 pounds. Nina finds measures of center and measures
Zarrin [17]

Answer:

mean

Step-by-step explanation:

brainliest please

4 0
2 years ago
el 18% de los arboles del jardin de la plaza mayor son almendros y el resto son naranjos. si en la plaza 45 almendros, ¿ cuantos
andre [41]

Queremos resolver un problema sobre porcentajes, donde conociendo el porcentaje que un dado número representa, queremos encontrar el número equivalente al 100%.

Veremos que el número total de arboles es 250.

------------------------------------

Sabemos que el 18% de los arboles son almendros y el resto son naranjos, es decir, el porcentaje de naranjos es 100% - 18% = 82%

Y sabemos que hay 45 almendros.

Entonces el <u>18% del número total de arboles es 45.</u>

Es decir, si hay N arboles en total, el 18% de N es igual a 45, esto se puede escribir como:

(18%/100%)*N = 45

0.18*N = 45

N = 45/0.18 = 250

Así podemos concluir que hay un total de 250 arboles en la plaza.

Si quieres aprender más, puedes leer:

brainly.com/question/24907616

8 0
2 years ago
PLSS help me with this question?
Xelga [282]

Answer:

Part a) By alternate interior angles

Part b) By vertical angles

Part c)  By AAA (Angle-Angle-Angle) Similarity Theorem

Part d) Triangles ABC and CDE are similar

Part e) b=\frac{2DE}{3}  or  b=\frac{15}{AC}

Step-by-step explanation:  

Part a)

we know that

If AB is parallel to DE

then

m<1=m<4 ------> by alternate interior angles

Part b)

we know that

m<5=m<6 -------> by vertical angles

Part c) we know that

The two triangles are similar by AAA (Angle-Angle-Angle) Similarity Theorem ------> The three corresponding angles are equal

so

m<1=m<4

m<5=m<6

m<3=m<2

Part d) we know that

If two figures are similar, then the ratio of its corresponding sides is equal and its corresponding angles are congruent

therefore

Triangles ABC and CDE are similar

Part e) Find the length side of b

Remember that

If two figures are similar, then the ratio of its corresponding sides is equal

so

\frac{AB}{DE}=\frac{BC}{DC}=\frac{AC}{CE}

substitute the values

\frac{3}{DE}=\frac{2}{b}=\frac{AC}{7.5}  

b=\frac{2DE}{3}

or

b=\frac{2*7.5}{AC}=\frac{15}{AC}

8 0
2 years ago
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