3 years ago

Factorise :x^2-4x-21+10y-y^2

Mathematics

1 answer:

Elenna [48]3 years ago

4 0

Answer:

This cannot factor

Step-by-step explanation:

This cannot factor because there is no number that can be factored out of all of the terms.

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Everything in a store is discounted by 25%. What is the sale price of a clock with a regular price of $24.60?

Lelechka [254]

Answer:

$24.35

Step-by-step explanation:

sale price⇒ total price-discount price

s.p=$24.60-25/100 ∴25%⇒25/100

s.p⇒$2460/100-25/100 ∴24.60⇒2460/100

s.p⇒$24.35

⇒$24.35

3 0

2 years ago

The following circle graph represents how the Townsends spend their monthly income. What is the central angle measure of the sec

mars1129 [50]

Please say brainliest.

It would be 18 degrees.

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3 years ago

Find the area of the trapezoid.

ss7ja [257]

$\bf \textit{area of a trapezoid}\\\\
A=\cfrac{h(a+b)}{2}~~
\begin{cases}
a,b=\stackrel{bases}{parallel~sides}\\
h=height\\[-0.5em]
\hrulefill\\
a=15.8\\
b=21.8\\
h=11.7
\end{cases}\implies A=\cfrac{11.7(15.8+21.8)}{2}
\\\\\\
A=\cfrac{11.7(37.6)}{2}\implies A=219.96$