91Ó°ÊÓ

Express each number in standard form.

$\mathbf{9}\mathbf{.1}\mathbf{×}{\mathbf{10}}^{\mathbf{−}\mathbf{5}}$

Simplify the expression

${\left(−3d^2{f}^{3}g\right)}^2{\left[{\left(−3d^{2}f\right)}^3\right]}^2$

Find each product.

$\left(\mathbf{2}a−\mathbf{5}\right)\left(\mathbf{3}a+\mathbf{5}\right)$

GEOMETRY Use the formula$V=\mathbf{Ï€}{r}^{2}h$ to find the volume of the cylinder.

Find each product.

$\left(x−\mathbf{3}\right)\left(x^2+\mathbf{5}x−\mathbf{6}\right)$

Evaluate each product or quotient. Express the results in scientific notation.

$\left(2.13×{10}^2\right)\left(3×{10}^5\right)$

Simplify the expression

$\left(−2g^{3}h\right){\left(−3g{j}^4\right)}^2{\left(−ghj\right)}^2$

Determine whether the given expression is a monomial or not.

$−x+3$

Determine whether the given expression is a monomial or not.

$23abc{d}^2$

Determine whether the given expression is a monomial or not.

$\frac{xy{z}^2}{2}$