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3 years ago

15

I need help with this question "To estimate the product 3.48 x 7.33,Marisa multiplied 4x8 to get 32.Explain how she can make a c

loser estimate."

1 answer:

Furkat [3]3 years ago

3 0

3.5 x 7.3
Take it to the nearest tenth.
Does that answer your question?

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Which expression is equal to<br> -18b^-4

victus00 [196]

Answer:

$- \frac{18}{ {b}^{4} }$

Step-by-step explanation:

$- 18b {}^{ - 4}$

express b^-4 with a positive exponent using:

$a {}^{ - n} = \frac{1}{ {a}^{n} }$

$- 18 \frac{1}{ {b}^{4} }$

$- \frac{18}{ {b}^{4} }$

8 0

3 years ago

Please help!!! Thanks!

Darina [25.2K]

8x+(4*30)=6(6+30)
8x+120=6x+180
2x=60
x=30 pounds of coffee

3 0

3 years ago

Please help, this will just take a minute of your time ❤︎ (literally)<br>(Discriminant Worksheet)

igomit [66]

Answer:

$\large\boxed{x=-\dfrac{7-\sqrt{97}}{4}\ \vee\ x=-\dfrac{7+\sqrt{97}}{4}}$

Step-by-step explanation:

$ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{We have:}\\\\-2x^2-7x+10=4\qquad\text{subtract 4 from both sides}\\\\-2x^2-7x+6=0$

$a=-2,\ b=-7,\ c=6\\\\\Delta=(-7)^2-4(-2)(6)=49+48=97>0\\\\\sqrt\Delta=\sqrt{97}\\\\x=\dfrac{-(-7)\pm\sqrt{97}}{2(-2)}=\dfrac{7\pm\sqrt{97}}{-4}=-\dfrac{7\pm\sqrt{97}}{4}$

6 0

3 years ago

I have 2 possible answer, but I don't know which one. Help please.

stira [4]

Answer:

X=120

Step-by-step explanation:

It is an equalateral so all the angles in the middle are the same all being 60

The angle of a straight line is 180

So just minus 60 from 180 to get 120

180-60=120

5 0

3 years ago

Read 2 more answers

Need help with all questions !!! Get a brainiest answer and a thanks !!

stich3 [128]

1) carrots= 5/12 peas= 2/12 potatoes=1/12
corn= 4/12

2) there are more carrots than peas. there are more corn than potatoes.

3) 2/3

4) separate like number 3 but instead of corn put carrots and leave the peas.

6 0

3 years ago