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3 years ago

Helppp asapppp!!!!right Answers please

Mathematics

1 answer:

evablogger [386]3 years ago

6 0

Translation is 4 units left and 2 units down

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Factorise quadratic expressions a2+2a+1

Artist 52 [7]

Answer:

(a+1)(a+1) or (a+1)^2

Step-by-step explanation:

a^2+2a+1=(a+1)(a+1)

Please mark me as Brainliest if you're satisfied with the answer.

7 0

3 years ago

Please help me with this question, it says:

Andrew [12]

Answer:

x = 5.

Step-by-step explanation:

x^3 - x = 120

We first guess the value of x and calculate the left side.

Take x = 4:-

4^3 - 4 = 64-4 = 60

This is < 120 so try x = 5:

5^3 - 5 = 125 - 5 = 120.

So one solution is x = 5.

6 0

2 years ago

Your third-grade classroom has 32 boys and girls. Two-thirds of the boys and three-fourths of the girls are going on a field tri

adelina 88 [10]

Answer: The ratio of boys to girls would be 3 : 5 .

Step-by-step explanation:

Since we have given that

Number of boys and girls = 32

Fraction of boys are going on a field trip = $\dfrac{2}{3}$

Fraction of girls are going on a field trip = $\dfrac{3}{4}$

Number of children left = 9

Let the number of boys be 'b'.

Let the number of girls be 'g'.

According to question, it becomes ,

$b+g=32------------(1)\\\\32-9=\dfrac{2}{3}b+\dfrac{3}{4}g\\\\23=\dfrac{2b}{3}+\dfrac{3g}{4}-------------(2)$

From eq(1), we get that g = 32-b

So, it becomes,

$\dfrac{2}{3}b+\dfrac{3}{4}(32-b)=23\\\\\dfrac{2}{3}b+24-\dfrac{3}{4}b=23\\\\\dfrac{2}{3}b-\dfrac{3}{4}b=23-24=-1\\\\\dfrac{8b-9b}{12}=-1\\\\\dfrac{-b}{12}=-1\\\\b=-1\times -12\\\\b=12$

so, number of girls would be 32 - b = 32 - 12 = 20

So, Ratio of boys to girls in class would be 12 : 20 = 3 : 5.

Therefore, the ratio of boys to girls would be 3 : 5 .

7 0

4 years ago

A rectangular prism has a length of 8 in., a width of 4 in., and a height of 2 1/4 in.

Zanzabum

Before you do anything, you convert 1/4 into 0.25. Then you start multiplying. If you don't understand email me at [email protected] or go to Khan Academy .

5 0

4 years ago

Take 2y2 - 3y - 5 from y3 - 6y2 + 5y. Select the correct answer.

madreJ [45]

Answer: y3 -8y2 + 5 (d.)

hope this helps

3 0

4 years ago

Read 2 more answers