2 years ago

Anna has 24 apples and 27 bananas. How many does she have all together?

Mathematics

1 answer:

aalyn [17]2 years ago

3 0

She has 51 all together

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For the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)

Oksanka [162]

$f(x)=3x^2-2x+5\\\\
f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\
f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\
f(-2)\ \ Substitude\ x=-2\\
f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\
f(a)\ \ substitude\ x=a\\
f(a)=\underline{3a^2-2a+5}$

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4 years ago

Simplify the expression: 8d+9c+1x3=b

VMariaS [17]

Answer:

b=8d+9c+3

Step-by-step explanation:

Multiply:

1x3=3

Rewrite Equation:

b=8d+9c+3

Hence, the correct answer is b=8d+9c+3

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2 years ago

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. 25% of 900 = 225, 25% is called____ *

posledela

Answer:

25% is called a quarter of 900

Step-by-step explanation:

${ \tt{25\% = \frac{25}{100} = \frac{1}{4} }} \\$

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3 years ago

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IfA=−3n+2 andB=5n−7, what is the value of A−B, in simplest form?

alukav5142 [94]

Answer:

Either -4n or 0n but most likely -4n

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3 years ago

The area of a playground is 20 square yards. The length of the playground is 5 times longer than its width. Find the length and

jok3333 [9.3K]

The answer is length = 10 yd, width = 2 yd
proof
The length of the playground is 5 times longer than its width, it means
l=5w, but 10= 2x5 so we can write l= 5w,
and Area = 20 =l x w = (5x2) x 2 =20

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3 years ago