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3 years ago

HELP PLEASE !!!!!! due in 10 mins ill name brainist or whatever

Mathematics

1 answer:

EleoNora [17]3 years ago

3 0

E. 1
G. 2
F. 3
C.4
H.5
D.6
A.9
B.10
J.7
I.8

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Mr. Williams invested $4000 in a bond with the yearly interest rate of 4% his total interest on the investment was $800 what was

solniwko [45]

9.6 months that is how long the investment lasted.

8 0

4 years ago

What is the slope of a line perpendicular to the line whose equation is 15x+18y=270. Fully simplify your answer.

In-s [12.5K]

Answer:

6/5

Step by step explanation:

Here we are provided with a equation which is ,

$\longrightarrow 15x + 18y = 270$

And we are interested in finding the slope of the line which is perpendicular to the given line. We may rewrite the equation as ,

$\longrightarrow 18y = -15x +270\\$

$\longrightarrow y =\dfrac{-15x+270}{18}\\$

$\longrightarrow y =\dfrac{-15}{18}x +\dfrac{270}{8}\\$

$\longrightarrow y =\dfrac{-5}{6}x +\dfrac{135}{4}$

Recall the slope intercept form of the line which is y = mx + c .On comparing to which we get ,

$\longrightarrow m =\dfrac{-5}{6}$

Again , recall that product of slopes of two perpendicular lines is -1. So that ,

$\longrightarrow m_{\perp} =-\bigg(\dfrac{1}{m}\bigg)$

Hence ,

$\longrightarrow\underline{\underline{ m_{\perp}= \dfrac{6}{5}}}$

And we are done !

6 0

3 years ago

Read 2 more answers

Multiply. √3 ⋅ √5 ⋅ √7 Enter your answer, in radical form, in the box.

Galina-37 [17]

Answer

Step by step explanation

$\sqrt{3} \times \sqrt{5} \times \sqrt{7}$

The product of roots with the same index is equal to root of the product

$= \sqrt{3 \times 5 \times 7}$

Calculate the product

$= \sqrt{105}$

Hope this helps...

Best Regards!

3 0

3 years ago

Whats number 7?? im so confused!!

I am Lyosha [343]

Maybe D? I'm not exactly sure, I'm sorry

7 0

3 years ago

If y = 3x and 2x + 4y = 12, then 2x + 4(3x) = 12

Kamila [148]

Answer:

x=6/7 and y=18/7

Step-by-step explanation:

If y = 3x and 2x + 4y = 12,

then substitute the value of y with 3x

2x + 4(3x) = 12

2x+12x=12

14x=12

x=12/14=6/7

y=3x=3*(6/7)=18/7

6 0

4 years ago