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Questions in mathematics

[Terjawab] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Terjawab] If $h(x)$ is the inverse of $f(x)$, what is the value of $h(f(x))$? A. 0 B. 1 C. $x$ D. $f(x)$

[Terjawab] Which solution value satisfies the inequality $x-6 \geq -7$? A) $x=0$ B) $x=-2$ C) $x=-7$ D) $x=-5$

[Terjawab] Which of the following represents the factorization of the binomial below? [tex]x^2-81[/tex] A. [tex](x+9)(x+9)[/tex] B. [tex](x)(x-81)[/tex] C. [tex](x+9)(x-9)[/tex] D. [tex](x-9)(x-9)[/tex]

[Terjawab] When $6 a^2 b^3 \cdot-3 a^5 b^3$ is multiplied, the product of the coefficients is $\square$. The exponent on a when $a^2$ is multiplied by $a^5$ is $\square$.

[Terjawab] The image shows a geometric representation of the function [tex]$f(x)=x^3 \quad 2 x \quad 6$[/tex] written in standard form. What is this function written in vertex form? A. [tex]$f(x)=(x-1)^2-7$[/tex] B. [tex]$f(x)=(x+1)^2-7$[/tex] C. [tex]$f(x)=(x-1)^2-5$[/tex] D. [tex]$f(x)=(x+1)^2-5$[/tex]

[Terjawab] The weight of Jacob's backpack is made up of the weight of the contents of the backpack as well as the weight of the backpack itself. Seventy percent of the total weight is textbooks. His notebooks weigh a total of 4 pounds, and the backpack itself weighs 2 pounds. If the backpack contains only textbooks and notebooks, which equation can be used to determine $t$, the weight of the textbooks? $0.7(t)=t-4-2$ $0.7(t)=t+4+2$ $0.7 t(4+2)=t$ $0.7(t+4+2)=t$

[Terjawab] Write an equation of a parabola that opens to the left, has a vertex at the origin, and a focus at ( [tex]$(-9,0)$[/tex] ).

[Terjawab] Find the $x$-intercept and $y$-intercept of the line. $6 x-4 y=24$

[Terjawab] A bank features a savings account that has an annual percentage rate of $3.6 \%$ with interest compounded quarterly. Brigeth deposits $\$5,500$ into the account. How much money will Brigeth have in the account in 1 year? Answer = $\$\square$. Round answer to the nearest penny. What is the annual percentage yield (APY) for the savings account? $APY = \square \%$. Round to the nearest hundredth of a percent.