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andreyandreev [35.5K]

4 years ago

11

Jean is 11 years old. She lives in a building with 8 children who are older than 11 and 6 children that are under 11 years old H

ow many children live in the building in all? PLS ANSWER WE ARE HAVING A TEST!

1 answer:

Vladimir79 [104]4 years ago

3 0

Answer:

Step-by-step explanation:8

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The three towns of Ripon, Sparta,

coldgirl [10]

Answer:

Obtuse triangle and x=38

Step-by-step explanation:

38 + 104 + x = 180

142 + x = 180

x = 38

8 0

3 years ago

The number of boys exceeded the number of girls by seven. There were 29 boys and girls. How many of each were there?

Elenna [48]

Answer:

Girls: 11

Boys: 18

Step-by-step explanation:

x: number of girls

x+x+7=29

2x=22

x=11

number of guys:

x+7=11+7=18

4 0

3 years ago

Take a factor out of the square root:

Allisa [31]

Answer:

Question A)

$=\sqrt{6}x$

Question B)

$=3a\sqrt{a}$

Question C)

$=5\sqrt{2}b^2$

Step-by-step explanation:

A)

We are given:

$\sqrt{6x^2}\, \text{ where } x\geq 0$

We can rewrite the expression:

$=\sqrt{6}\cdot \sqrt{x^2}$

The square root and square will cancel each other out. Thus:

$=\sqrt{6}x$

B)

We are given:

$\sqrt{9a^3}$

Rewrite:

$=\sqrt{9}\cdot \sqrt{a^3}$

Note that the square root of 9 is simply 3. We can also factor the second part:

$=3\cdot \sqrt{a^2\cdot a}$

Rewriting:

$=3\cdot\sqrt{a^2}\cdot\sqrt{a}$

Simplify:

$=3a\sqrt{a}$

C)

We are given:

$\sqrt{50b^4}$

Rewrite. Note that 50 = 25(2):

$=\sqrt{25}\cdot \sqrt{2}\cdot \sqrt{b^4}$

Simplify. We can rewrite the factor as:

$=5\cdot \sqrt{2}\cdot \sqrt{(b^2)^2}$

The square and square root will cancel out. Thus:

$=5\sqrt{2}b^2$

8 0

3 years ago

Let f(x) = -4x + 7

Tema [17]

g(x) = 2x-6

f(x) = -4x +7

(g•f)(x) = g(f(x))

= 2(f(x)) - 6

= 2 ( -4x+7) -6

= -8x + 14 -6

= -8x +8

now

(g•f)(1) = -8(1) + 8= -8+8

= 0

so option a is answer

4 0

3 years ago

Stels [109]

Answer- 78

Step-by-step explanation:

6 0

3 years ago